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HomeMy WebLinkAboutPlanning 2017-06-22 COMPLETE AGENDA PACKETCity of Tukwfla Allan Ekberg, • i- Von 711 Sri on CHAIR, MIGUEL MAESTAS; VICE - CHAIR, NHAN NGUYEN; COMMISSIONERS, SHARON MANN, MIKE HANSEN, LOUISE STRANDER, BROOKE ALFORD, AND DENNIS MARTINEZ BOARD OF ARCHITECTURAL REVIEW PUBLIC HEARING AGENDA JUNE 22, 2017 - 6:30 PM TUKWILA CITY HALL COUNCIL CHAMBERS L Call to order the public hearing IL Attendance III. Adoption of 04 -27 -17 Minutes PUBLIC HEARING IV. CASE NUMBER: L17 -0013, L17 -0015, and L17 -0014 APPLICANT: Lisa Klein, AHBL for Tukwila School District REQUEST: Conditional use permit and design review to expand Foster High School by approximately 57,000 Wand construct a new school for infants through kindergarten children (132K) of approximately 53,000 ftz north of Showalter Middle School. Foster High plans include the redevelopment and relocation of sports fields and the elimination of portable classrooms. A Variance is requested to: exceed the 30 ft. height limit in the LDR zone by 2 feet for portions of Foster High and by 5 feet for portions of B2K; to reduce the parking requirement for Foster High from 440 spaces to 174; and for fencing and netting around sports fields to be up to 30 feet high. LOCATION: 4242 S. 144th St and 4610 S. 142nd St.; APNs 1523049108 and 1523049164 V. DIRECTOR'S REPORT VI. ADJOURN III I Date: Time: Location: Present: Absent: Staff: City of Tukwila Planning Commission BOARD OF ARCHITECTUAL REVIEW(BAR) MINUTES April 27, 2017 6:30 PM Council Chambers Vice Chair, Nhan Nguyen; Commissioners, Mike Hansen, Louise Strander, Dennis Martinez and Brooke Alford Chair, Miguel Maestas; Commissioner Sharon Mann Minnie Dhaliwal, Planning Supervisor; Max Baker, Assistant Planner and Wynetta Bivens, Planning Commission Secretary Commissioner Nguyen, Vice Chair, called the public hearing to order at 6:30 PM. Adoption Commissioner Strander made a motion to adopt the March 2, 2017 of minutes: minutes. Commissioner Alford seconded the motion. All were in favor. Public Safety Plan Update: Mia Navarro, Community Engagement Manger, provided an update on the Public Safety Plan. The plan will include three new fire stations, a justice center, and a new consolidated shops facility, to modernize the facilities. The funding will come primarily from the public safety bond, which was passed November 2016, as well as fire impact fees, general funds, and utility funds. The estimated cost will be $112.4 million dollars. A financial safety oversite plan committee comprised of five members will review the allocation of the bond proceeds and provide updates to the council and the public. Also, there is a siting advisory committee, comprised of four community members, two City Councihnembers, and the Public Works Director. This committee will provide feedback and participate in public outreach strategies, and look at potential sites. A rough timeline was provided for the public safety plan. As well as, architect information, outreach efforts, participation to date, goals, and purposes for the facilities. There is a website for the public safety plan that is frequently updated. Public Hearing: Commissioner Nguyen swore in those wishing to provide testimony and opened the public hearing. CASE NUMBER: L17 -0006 TITLE: Tukwila School District Transportation Building REQUEST: Design Review and Conditional Use approval for development of a 2,515 sq. ft. office building for administrative use by Tukwila School District bus drivers. Site improvements will include landscaping and parking reconfiguration. LOCATION: 12801 E Marginal Way South, Parcel 2384200010 Max Baker, Assistant Planner, Department of Community Development, introduced himself, Page 2 Public Hearing Minutes April 27, 2017 and asked the Commissioners the Appearance of Fairness questions. He gave the presentation for staff on the proposed Conditional Use Permit and Design Review, which were combined to streamline the process. For the record, two public comment letters were received, dated March 2, 2017, and March 13, 2017. Staff went over the review process, providing background information. Recommendations: 1. Staff recommended approval of the Conditional Use Permit. 2. Staff recommended approval of the Design Review with a waiver of the requirement for the interior parking lot landscaping requirements due to the need for the continued access of moving buses through the site. Jeff Feeney, Architect, for the applicant, gave the presentation. Mr. Feeney introduced their project team. He said that staff did an excellent job presenting the project. He said the landscape plan before the Commission may not be the correct version. He said three trees shown on the plan fell due to storm damage and had to be removed from the site, and noted that the applicant will ensure to replace the trees. There was no public testimony. The applicant addressed questions and comments from the Commission. The public hearing was closed. Deliberation: None. Motions: Commissioner Hansen moved to approve Case Number L17 -0006, Conditional Use Permit based on the findings and conclusions contained in the staff report dated Apri118, 2017.Commissioner Alford seconded the motion. All were in favor. Commissioner Alford moved to approve Case Number L17 -0006, Design Review based on the findings and conclusions contained in the staff report dated April 18, 2017, including a waiver for the interior parking lot landscaping requirements as allowed under TMC 18.52. Commissioner Hansen seconded the motion. All were in favor. Director's Report: • Staff will forward a training video link to the Commission to review independently. • There are no May agenda items scheduled. • The Tukwila School District is scheduled to be heard in June, it's expected to be a long meeting. Adjourned: 6:55 PM Submitted by: Wynetta Bivens Planning Commission Secretary 2 City of Tukwila Allan Ekberg, Mayor Department of Community Development Jack Pace, Director Staff Report Board of Architectural Review for Tukwila School District Prepared for the June 22, 2017 Meeting FILE NUMBERS: L17 -0013 Public Hearing Design Review L17 -0015 Conditional Use Permit L17 -0014 Variance APPLICANT: Lisa Klein, AICP at AHBL for Tukwila School District REQUEST: Conditional use permit and design review to expand Foster High School by approximately 57,000 ft2 and construct a new school for infants through kindergarten children (132K) of approximately 53,000 ft2 north of Showalter Middle School. Foster High plans include the redevelopment and relocation of sports fields and the elimination of portable classrooms. A Variance is requested to: exceed the 30 ft. height limit in the LDR zone by 2 feet for portions of Foster High and by 5 feet for portions of B2K, and to reduce the parking requirement for Foster High from 440 spaces to 174. LOCATION: 4242 S. 144th St and 4610 S. 142nd St.; APNs 1523049108 and 1523049164 COMPREHENSIVE PLAN AND ZONING LDR (Low Density Residential) with portions of Public Recreation DESIGNATION: Overlay SEPA DETERMINATION: A Mitigated Determination of Non - Significance (MDNS) was issued by Tukwila School District on May 9, 2017. NOTIFICATION: A combined Notice of Application was distributed by mail to tenants and owners of property located within 500 feet of the project site, and agencies that may have an interest in the project on March 27, 2017. The Notice of Application was also posted on site. As lead agency, Tukwila School District issued a Mitigated Determination of Non - Significance on May 9, 2017. One comment letter was received. The Notice of Public Hearing was published in the Seattle Times and mailed to surrounding property owners and tenants on June 9, 2017. The notice was posted onsite on June 8, 2017. 3 RECOMMENDATION: Approval with conditions STAFF: Lindsay Brown, Assistant Planner ATTACHMENTS: A. Aerial Photo of Site B. Foster High School- Large Plan Set with the following sheets: C1.01 CUP Site Plan A2.10 First Floor Reference Plan A2.20 Second Floor Reference Plan A3.00 Photos of existing buildings and site A3.14 Renderings A3.11 Overall Exterior Elevations A3.12 Enlarged Exterior Elevations A3.13 Enlarged Exterior Elevations L2.00 Overall Landscape Plan L2.05 Landscape legend and details L2.01 Landscape Plan L2.02 Landscape Plan L2.03 Landscape Plan L2.04 Landscape Plan C. Birth to Kindergarten- Large Plan Set with the following sheets: C0.03 Site Plan C4.20 Entry drive plan- profile Al. 1 Level 1 Floor Plan A1.2 Level 2 Floor Plan A2.0 Exterior Elevations A2.1 Exterior Elevations L2.00 Overall Landscape Plan L2.01 Landscaping- North site L2.02 Landscaping- South site D. SEPA Mitigated Determination of Nonsignificance by Tukwila School District, May 9, 2017 E. Design Review Staff Report for the original Foster High School, August 25, 1989 F. Tree Inventory and Disposition for B2K Project prepared by Brandan Kriegal and received June 9, 2017 G. Comment Letter from Jonathan Joseph, May 22, 2017 H. Applicant Response to Conditional Use Permit Criteria, February 28, 2017 I. Tukwila Birth to K Traffic Impact Analysis prepared by Gibson Traffic Consultants, February 2017 J. Applicant Response to Variance Criteria, revised May 1, 2017 4 El K. Tukwila School Campus Parking Analysis prepared by Gibson Traffic Consultants, February 2017 L. Applicant Response to Design Review Criteria, February 28, 2017 M. Typical Window Trim Detail, NAC Architecture, June 2017 N. Exhibit showing area at B2K to remain free of stopped cars at all times 3 5 Table of Contents REPORT ORGANIZATION ......................................................................... ............................... 5 FINDINGS................................................................................................... ............................... 5 FOSTERHIGH SCHOOL ............................................................................ .............................10 BIRTH TO KINDERGARTEN CENTER ........................................................ .............................12 PUBLICCOMMENTS .................................................................................. .............................15 CONDITIONAL USE PERMIT ...................................................................... .............................16 Criteria for Granting Conditional Use Permit ...................................... .............................16 Conclusions....................................................................................... .............................22 Recommendations............................................................................. .............................23 VARIANCE.................................................................................................. .............................25 Criteria for Granting Variance Permit ................................................. .............................27 Conclusions....................................................................................... .............................32 Recommendations............................................................................. .............................34 DESIGNREVIEW ........................................................................................ .............................35 Criteriafor Approval ........................................................................... .............................27 Conclusions....................................................................................... .............................50 Recommendations............................................................................. .............................51 IH REPORT ORGANIZATION The Foster and B2k projects are on separate parcels, and each development proposal needs to meet the conditional use permit, variance, and design review criteria for approval. Following detailed project descriptions for the Foster High expansion and then Birth to Kindergarten Early Learning Center, the report is broken into sections for the conditional use permit, variance, and design review requests. In each of these sections, the projects will be compared to the criteria for permit approval. The compilation of recommendations and suggested conditions of approval for all three land use permits follow each section. TMC 18.104.030 allows for all permit applications related to a single project to be bundled together in a consolidated hearing and approval procedure, using the highest numbered land use decision type applicable to the project application. Variances and Conditional Use Permits are Type 3 land use decisions made by the Hearing Examiner. Design Review is a Type 4 decision made by the Board of Architectural Review. The Variance, Conditional Use Permit, and Design Review requests will all be decided by the Board of Architectural Review in an open record public hearing on June 22, 2017. Additionally, the applicant submitted a sign variance application that will be processed as a hearing examiner decision. Tukwila School District assumed the lead agency status for SEPA determination and issued a Mitigated Determination of Non - Significance on May 9, 2017 (Attachment D). FINDINGS Site Information This project proposes construction on two parcels; expansion of Foster High School and related site changes at 4242 S. 144th Street and the construction of a new school for young children on land currently housing baseball diamonds north of Showalter Middle School at 4610 S. 142nd Street. The Foster High School parcel is shaped like a rectangle and stretches from the western border of the high school to the easternmost border of Showalter Middle School, with a small rectangle cut out mid - parcel for the Tukwila Pool building. 5 VA The area bounded by S. 144th St. and between Tukwila International Boulevard and 52rd Ave S. including Foster High School was annexed to the City of Tukwila in 1989. The property has frontage along 42nd Avenue South and South 142nd and 144th Streets with several vehicular access points on the western and southern frontages. There is some perimeter and parking lot landscaping, and several sports fields located north and east of the high school buildings. The B2K site is an 8 -acre, pan- shaped parcel located immediately east of St. Thomas Church and north of Showalter Middle School. Although the site has frontage on Macadam Road, steep grades prevent access from the Macadam to the developable area of the site. Comprising the bulk of the land west of the panhandle, the developable area is mostly flat with grade changes of up to 10 feet. The only existing access to the site is for pedestrians, through the Showalter campus. Existing Development The original Foster High School (constructed in 1952) was demolished due to pervasive use of asbestos as a building material and overall building deterioration and replaced with Foster High as we see it today. Constructed in 1991, Foster High's form originated from a design contest. Described in Attachment E, the winning concept imagined Foster High School as a book with the two buildings (academic and activities wings) forming the book covers, bounded in between by the open courtyard and skybridge. Building modulation on the north and east fapades form the pages of the book. The academic and activity wings (book covers) are constructed of red brick with an inlaid frieze of white, red, and blue bricks near the top above the second -story windows of the academic A Rl wing. At the ends of the wings the brick is cut away to form an open rectangular viewing space capped by the frieze at what would be the second story. Supporting the open viewing space at the first floor are white columns, completing the modern interpretation of a classical entablature. On the northwest corner of the parcel is a small building, and between the school and S. 142nd St. there is a grouping of four portable classrooms. East of the portables is a softball diamond, and east of the diamond but north of the Tukwila pool are four tennis courts. East of the pool is a football stadium which takes up almost the entire depth of the parcel, from S.144th St. to the northern property line. Parking is provided in three areas onsite. The largest lot is east of the high school building, and is accessed from two one -way drives onto and from S.144th street. The second largest parking area is north of the buildings, near the maintenance building. The third parking lot is very small and can hold just 6 cars, located on the southwest corner of the site near the open courtyard. Additionally, there are 2 bus loading zones- one on 42nd Ave S. and one on S. 144th St. which can be used by cars for parking needs when not needed for busing students. 7 The B2K site is an 8 -acre, pan- shaped parcel surrounded by single family homes to the north, St. Thomas church to the west, Showalter Middle School to the south, and steep slopes on the eastern panhandle. Although the site has frontage on Macadam Road, steep grades prevent access from the Macadam to the developable area of the site. Comprising the bulk of the parcel west of the panhandle, the developable area is mostly flat with grade changes of up to 10 feet. The B2K parcel is developed with a baseball diamond on the southern part of the mostly flat area and a practice baseball or softball diamond on the north part of the site. Pedestrians can access the diamonds by walking north from Showalter Middle School or from Foster, by walking north of the football stadium; there is no vehicular access. Surrounding Land Uses The Foster High parcel is zoned Low Density Residential (LDR) with Public Recreation Overlay zoning over the portions of the parcel currently developed with sports fields. The adjacent lands to the north, east, and south of the High School are also zoned LDR; the properties across 42nd Ave S. are zoned Medium - Density Residential (MDR) and Low - Density Residential (LDR) with Urban Renewal Overlay District. The Urban Renewal Overlay is intended to promote community development; allowing the same uses allowed in the underlying zone. Nonresidential uses are very limited in the LDR zone and accordingly, the properties north, east and south of Foster are all single - family homes or undeveloped. In recent years, particularly along S. 144th St., there has been a noticeable uptick in larger LDR -zoned properties subdividing. 10 At the northwest corner of the intersection of 42nd Ave S. and S. 144th St. is the former King County Library which will be used to house the technology and maintenance staff for the District. Immediately north is a small single - family house owned by the City of Tukwila. North of that is a 46 -unit condominium complex called Normandy Court. Just west of the intersection of S. 142nd St. and 42nd Ave S. is the 69 -unit Samara Apartments. The B2K site is zoned Low Density Residential (LDR) with Public Recreation Overlay zoning over the entire parcel. The parcel is bordered by single family homes to the north, St. Thomas church to the west, Showalter Middle School to the south, and heavily forested steep slopes on the eastern panhandle. Environmentally Sensitive Areas There are no environmentally sensitive areas at Foster High School. Class 2 and Class 3 slopes characterize the panhandle, easternmost portion of the B2K site, along with lands immediately adjacent to the panhandle, to the west. According to the City's Sensitive Areas Map, a small portion of the site near Macadam Road is classified as Category IV Watercourse Buffer and Type 4 Watercourse buffer. Topography Slope Classifications 2 Landslide potential is moderate; slope is between 15% and 40% and underlain by relatively permeable soils. Landslide potential is high; slope is between 15 °A® and 40% and underlain by relatively impermeable soils or by bedrock; also Includes j all areas sloping more than 40 %. The Foster High site is mostly flat, with a small slope downward along the northern property edge and S. 142nd St. The existing topography will remain largely unchanged after the proposed modifications are completed. The SEPA checklist prepared for this project estimates 8,760 cubic yards of cut and 6,150 cubic yards of fill. The B2K parcel's slopes on the northern perimeter of the development site are slight. Slopes from 10 -50% characterize the topography on the eastern panhandle portion of the parcel and just west of the panhandle. The slope runs down, eastward toward Macadam Road. 9 11 Vegetation At Foster, there are mature landscaping trees of varying species and size planted around the Foster High buildings, including the outdoor courtyard between the academic and activity wings. While trees are planted at even intervals along the academic and activity wings facing 42nd Ave S. and S. 144th St., there are fewer trees planted on the ends of the building, and what trees exist are unevenly spaced. In the east parking lot accessed from S. 144th St., there is a landscaping island for every 7 parking stalls; most islands host 2 trees. There are also landscaping islands in the northern parking lot accessed from S. 42nd Ave.; these islands are connected by 3 -12 parking spaces, depending on location. Most of these landscaped islands host 2 trees. Trees are also planted along the parcel's northern and southern perimeters, around the maintenance and technology building in the northwest corner, in front of the four portables, and between the pool and the football stadium. Most of the softball diamond, area outside the football stadium, and land between the pool and the four tennis courts is grass. Grass is also planted on the landscaping strip between the bus loop and 42nd Ave S., around the maintenance building, between the parking lots and the school, and underneath areas landscaped with trees. On the B2K site, the baseball diamond areas are dirt and grass. There are blackberry bushes between the baseball diamonds and the church. On the northern parcel edge and the panhandle portion of the site, there are mature deciduous and evergreen trees of various species. The trees in or near the developable area of the site are described in Attachment F. FOSTER HIGH SCHOOL Project Description Tukwila School District proposes expanding Foster High School by approximately 57,000 ft2, relocating several sports fields, removing four portable classrooms and demolishing the maintenance services building in the northwest corner. Currently comprised of two separate academic and activities buildings, Foster High School will unify the buildings as wings under the proposed expansion. The expanded academic wing will incorporate new learning studios to replace the four portables to be removed after construction and additional spaces to accommodate STEAM (Science, technology, Engineering, Arts and Math)- focused learning. Existing classrooms and hallways in the academic wing will be remodeled. The outdoor courtyard between the academic and activities wing will be under a new roof, and the first -floor commons expanded into what is now an open -air entry plaza. In the activities wing, several existing areas will be remodeled (choral, band, commons) and an auxiliary gym and fitness center will be added at the eastern end, expanding the building's footprint. 10 12 Building Design The additions expand the academic wing to the north and east, and the activity wing to the east and north. The existing street - facing brick fapades of the wings will remain unchanged; the additions are connected but designed in a contrasting building style, with generally different materials. The academic wing addition is recessed from the street - facing brick fapade by 20 feet. Precast concrete will form an ivory - colored base, matching the ivory base of the brick wing adjacent. The windows also take their form from the existing brick building. The brick fapade has windows that are rectangular in shape, divided horizontally above the midpoint and grouped in sets of four. The proposed addition has windows of similar design, but grouped in sets of six. There is modulation in the STEAM addition's north fapade as learning studios project and recess alternately. While the classrooms are modulated building elements, the roofline is not modulated. The roof projects in a flat line, forming sheltered recessed space where learning studios are set back and flush to the building wall where learning studios jut northward. The academic wing addition is finished with metal panels and cement fiber panels in dark grey and rust colors. Dark grey fiber cement panels applied with vertical seams forms the bulk of the building's exterior, with rust - colored fiber cement panels applied on the exterior of the recessed learning studios. Light - colored metal panels visually divide the first and second stories. The activities wing expansion takes much of its form and materials from the academic wing building expansion design. The roofline is flat, and aligns with the bottom of the gable of the existing brick building's peaked roofline. The auxillary gym is finished with fiber cement panels of dark grey, dark blue, and rust. Windows on the southern fapade divide the dark grey fiber board panels with vertical seams from the dark blue panels in a different panel shape, and are roughly aligned with the second -story windows of the brick building. On the east side of the gym, the dark grey panels cover the top 2 /3rds of the fapade, with rust panels on the bottom. Long, rectangular windows inset in thin vertical panels of light- colored metal. These panels are aligned at different intervals in the dark grey part of the building than in the rust paneled lower portion of the fapade. Enclosing the open courtyard, building additions at the entry to the school are largely glass windows on the first story, with accents of grey metal panels forming the connection to the ends of the academic and activity wings. On the second story, a sunshade will be applied to the existing skybridge. Metal paneling will frame the second story above the skybridge. The easternmost fapade of the academic building, and the expansions along the activities wing and behind the S. 144th Street fapade mix and match elements from the STEAM addition, auxillary gym, and courtyard entry described above. 11 13 Site Plan To facilitate the Foster High School building footprint expansion and accommodate the relocation of baseball fields for the Birth to Kindergarten school, several sports fields will need to be relocated. Below are the changes to sports fields included with this application: • Four tennis courts split into pairs and relocated to the northwest corner of the site adjacent to S. 142nd St, and northeast of the expanded Foster High building. • Baseball diamond relocated from future Birth to Kindergarten site to existing tennis court and softball infield area. • Softball field rotated 180 degrees. • Practice baseball diamond on future B2K site removed and not replaced. The technology and maintenance building in the northwest corner of the parcel will be removed, and staff will relocate to the former King County Library building located at 4160 S.144th Street. The School District recently received approval of a conditional use permit (L16 -0077) allowing the use in the LDR zone. Other site plan changes include a reconfiguration and reduction in the size of the northern parking lot, from 102 to 49 parking spaces. The parking lot at the entry plaza will be expanded from 6 parking spaces to sixteen. The northernmost row of parking in the east lot will be removed and the spaces closest the building reconfigured, from 138 to 101 parking spaces. Landscaping The site boundary along S. 142nd St. will be landscaped with trees, shrubs and groundcover. Landscaping enhancement is also planned for the entry plaza, northern and eastern elevations of the expanded school, throughout the reconfigured and reduced northern parking lot, northeast of the school courtyard. BIRTH TO KINDERGARTEN CENTER Project Description Tukwila School District proposes construction of a 53,000 ft2, two -story school to serve infants and preschool and kindergarten students on a parcel currently developed with a baseball diamond and practice diamond for Foster High. The proposed early learning center will accommodate 440 children on an 8 -acre parcel located north of Showalter Middle School and east of St. Thomas Church. B2K will have approximately 300 kindergarten students enrolled, and 140 preschool and infant children. Once built, the Birth to Kindergarten Early Learning Center will house all of the District's kindergarten classes. 12 14 Building Design The school is designed with two distinct functional and visual sections at two different heights. Housing primarily administrative offices is the low- slung, single story front section of the building. The western end of this section is a service area, and on the eastern end, infant and toddler rooms. Recessed from the single -story front and deeper than that area wide are two - story classroom wings to the left and right of the school entrance, forming a u- shaped building centered around an interior courtyard at the rear of the school. Pre - kindergarten classrooms are located on the ground floor of the eastern wing; all other classrooms are for kindergarten students. A multipurpose room, community room, and stepped learning area for the ground floor connection between the two -story wings on either side. Looking at the front of the school, an 11' high mesh panel screen connects the front of the classroom wings. The single -story portion of the building will be finished with ivory- colored cement fiber board paneling applied horizontally and wrapping around the sides save for a front entrance portico just east of center which is recessed and finished in cedar wood siding. Cedar wood siding will also cover the front and rear fapades of the classroom wings, and the sides of the building forming the inner courtyard on the ground floor only. The sides of the two -story classroom wings and the second story of the interior courtyard walls will be finished in cement fiber board paneling applied vertically in grey. Windows of square and rectangle shapes are framed in brightly - colored metal flashing that slightly protrudes from the wall surface on all sides and sections of the school. The interior courtyard formed by the u- shaped classroom wings will have bright yellow exterior staircases extending away from the second story of each 2nd -story classroom wing. Site Design The site has no public street frontage; the sole vehicular and pedestrian access to the site will be at the southwest corner via easement from the church; all traffic to B2K will enter here. Stopping at the stop sign at the property entrance, car traffic will immediately turn right and drive along the southern parcel boundary where there are 60 parking spaces available on both sides of the drive aisle. Car traffic is then routed north and then eastward in front of the school, forming a traffic loop. Parents picking up or dropping off students can pull out of the traffic aisle into a drop -off lane that stretches from the southeast corner of the lot to the school entrance. 13 15 r� %D `v V l Ii�✓N4 �1I/ /AKIN III/ yn / uJY' Yf'm n%( �1 6 � /� �O �9% III � � � 0 � j ry i The single -story portion of the building will be finished with ivory- colored cement fiber board paneling applied horizontally and wrapping around the sides save for a front entrance portico just east of center which is recessed and finished in cedar wood siding. Cedar wood siding will also cover the front and rear fapades of the classroom wings, and the sides of the building forming the inner courtyard on the ground floor only. The sides of the two -story classroom wings and the second story of the interior courtyard walls will be finished in cement fiber board paneling applied vertically in grey. Windows of square and rectangle shapes are framed in brightly - colored metal flashing that slightly protrudes from the wall surface on all sides and sections of the school. The interior courtyard formed by the u- shaped classroom wings will have bright yellow exterior staircases extending away from the second story of each 2nd -story classroom wing. Site Design The site has no public street frontage; the sole vehicular and pedestrian access to the site will be at the southwest corner via easement from the church; all traffic to B2K will enter here. Stopping at the stop sign at the property entrance, car traffic will immediately turn right and drive along the southern parcel boundary where there are 60 parking spaces available on both sides of the drive aisle. Car traffic is then routed north and then eastward in front of the school, forming a traffic loop. Parents picking up or dropping off students can pull out of the traffic aisle into a drop -off lane that stretches from the southeast corner of the lot to the school entrance. 13 15 Just past the school entrance are 13 parking spaces available to the north of the drive aisle. Along the west edge of the site north of the parking lot is a bus loop. The school building is oriented on the site at an angle, with the entry facing south and slightly west. Play areas for infants, pre- kindergarten and kindergarten are separate areas whose locations correspond with their classroom spaces. Infants' outdoor space is located adjacent to the infant rooms on the east side of the single -story building forming the front fapade. Slightly north of the infant play area is covered and uncovered outdoor play space for pre - kindergarten students, hugging the eastern classroom wing. Kindergartens have an open lawn play area at the parcel's northwest corner, with covered and uncovered play areas on asphalt closer to the school building. This asphalt play area can be used as a fire lane in case of emergencies. The entire school site will be fenced in chain link; a sliding security gate will run along the western property line above the entrance to the site and will be closed when school is not in session. Additionally, chain link fencing will be installed at the southeast corner of the school between the outdoor infant play area and the parking lot, and again between the end of the bus loop and the kindergarten play yard. Landscaping Type I perimeter landscaping is proposed for the western and northern edges of the developable area. The parking lot will be landscaped with islands and a continuous planting strip of lawn between the principal parking area and the school entry. No changes are proposed to the steep slope area on the eastern portion of the parcel, covered with mixed, native vegetation. Offsite Improvements The School District will make several improvements to transportation infrastructure near the site. A sidewalk, pedestrian lighting, and vehicular turnaround immediately west of the school site on the church easement and private drive will be among the improvements planned. Also planned 14 16 t �w.. Ax R t auVw f f �..k 4 � q- n... v. _k .MGpaw @ S 3II 6P The school building is oriented on the site at an angle, with the entry facing south and slightly west. Play areas for infants, pre- kindergarten and kindergarten are separate areas whose locations correspond with their classroom spaces. Infants' outdoor space is located adjacent to the infant rooms on the east side of the single -story building forming the front fapade. Slightly north of the infant play area is covered and uncovered outdoor play space for pre - kindergarten students, hugging the eastern classroom wing. Kindergartens have an open lawn play area at the parcel's northwest corner, with covered and uncovered play areas on asphalt closer to the school building. This asphalt play area can be used as a fire lane in case of emergencies. The entire school site will be fenced in chain link; a sliding security gate will run along the western property line above the entrance to the site and will be closed when school is not in session. Additionally, chain link fencing will be installed at the southeast corner of the school between the outdoor infant play area and the parking lot, and again between the end of the bus loop and the kindergarten play yard. Landscaping Type I perimeter landscaping is proposed for the western and northern edges of the developable area. The parking lot will be landscaped with islands and a continuous planting strip of lawn between the principal parking area and the school entry. No changes are proposed to the steep slope area on the eastern portion of the parcel, covered with mixed, native vegetation. Offsite Improvements The School District will make several improvements to transportation infrastructure near the site. A sidewalk, pedestrian lighting, and vehicular turnaround immediately west of the school site on the church easement and private drive will be among the improvements planned. Also planned 14 16 is the development of the missing link of S. 142nd Street, from 43rd Ave S. to 44th Ave S. Currently a dirt and gravel pedestrian -only trail, the section of undeveloped right -of -way will be developed with a 23' wide, two -way asphalt driving surface and a 6" curb and 6' wide sidewalk to the south. PUBLIC COMMENTS A community open house was held at Foster High School from 5:30- 7:30pm on January 19th, 2017 to discuss all the Tukwila School District projects funded by the bond measure including the Foster High expansion and construction of the B2K campus. District consultants gave a presentation and overview of projects, and attendees were encouraged to walk around the room to view design renderings and ask questions of the consultant architects and engineers, or of City staff who were also available to discuss the projects and process with community members. One public comment on the District's SEPA issuance was received via email from Jonathan Joseph on May 22, 2017, and included in this report as Attachment G. His concerns include neighborhood inconvenience during pickup and drop -off times due to a reduction in onsite parking, stormwater runoff, tree health at Foster, and the purpose behind the projects. 15 17 CONDITIONAL USE PERMIT Tukwila School District requests approval of a conditional use permit to allow the Foster High School expansion, Birth to Kindergarten Learning Center, and related improvements in the Low - Density Residential (LDR) zone. Conditional use permits are utilized as a way to establish review and permit approval procedures for unusual or unique types of land uses which due to their nature, require special consideration of their impact on the neighborhood and land uses in the vicinity. Criteria for Approval The proposed project must comply with criteria detailed in the Conditional Use Permit Chapter of the Tukwila Municipal Code (TMC 18.64.050). The applicant's response to the conditional use permit criteria is Attachment H to this staff report. Staff makes the following findings using the Code's conditional use permit criteria (TMC 18.64.050) listed in italics: The proposed use will not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity of the proposed use or in the district in which the subject property is situated. f:: Ster" Foster High School has operated at its current location since at least 1952. It serves the students of Tukwila, and also functions as a community gathering place, renting the sports fields and Performing Arts Center to other organizations for non - school functions. Foster High will continue to be an asset to the public welfare, and will not be detrimental or injurious to the property or neighborhood. The expanded Foster High School will be even better able to serve students' needs in future years, with technological improvements and facilities modernizations fueling STEM (Science - Technology- Engineering- Arts -Math) learning. B2K" The B2K Center is a new use proposed on a site currently used to house sports fields for Foster and Showalter students. As with Foster High, the B2K Center will serve the students and families in Tukwila. Unlike Foster, the B2K Center will not be open after school hours or available for community functions outside of the student population the school will serve. The use of the site for a public school for infants and young children will not be materially detrimental to the public welfare or improvements in the neighborhood. 2. The proposed use shall meet or exceed the performance standards that are required in the district it will occupy. The following relevant standards exist in this Low Density Residential (LDR) district (TMC 18.10): 16 : Setbacks: front - 20 feet; second front — 10 feet; side - 5 feet; rear — 10 feet. Off - street parking: (TMC 18.56.050) The parking requirement for elementary schools is 1.5 parking stalls per staff member. For high schools, 1 space per staff member plus 2 spaces for every 5 students or visitors Landscaping: (TMC 18.52.030) Nonresidential uses in the LDR zone are required to have 15 feet of front yard landscaping and 10 feet for the side and rear yards. The required perimeter landscaping shall be Type I. Parking lot landscaping requirements are 20 ft2 per parking space, and 15 ft2 if parking is located behind a building. Building height and parking variances are requested; see Variance section later in the staff report. Landscaping requirements are discussed in detail in the Design Review section later in the staff report. :: ster" Foster High School exceeds the setback requirements, it's closest building edge 42' feet away from the 42nd Ave S. property line (front), and 48' from S. 144th St. property line (second front). Foster's required rear yard setback is 10', and the STEAM addition will be 145' away from the rear property line. Student enrollment at Foster High School is 878 students and there are 87 staff members. Assuming no more than 5 visitors are onsite at any given time, Foster is required to provide 440 parking spaces. Discussion on the parking variance request for a parking reduction from 440 spaces to 174 is discussed under the Variance section of the staff report. B2K1' The Early Learning Center exceeds all setback requirements, maintaining a 60' front yard, 125' rear yard, and 170' and 60' side yard setbacks. The elementary school parking requirements of 1.5 parking stalls for each staff member is appropriate. The revised Traffic Impact Analysis Report prepared by Gibson Traffic Consultants (February 2017) states that B2K is anticipated to have 43 staff members, and so 65 parking spaces are required. The site plan shows 73 parking spaces, thus B2K exceeds the parking required by the use. 3. The proposed use shall be compatible generally with the surrounding land uses in terms of traffic and pedestrian circulation, building and site design. The purpose of the Low Density Residential zone (TMC 18.10.010) is to provide low- density family residential areas together with a full range of urban infrastructure services in order to maintain stable residential neighborhoods, and to prevent intrusions by incompatible land uses. The proposed uses- schools - are often found in residential zones where the surrounding low density residential uses are more sensitive to traffic and noise associated with this type of use. Traffic from the schools will be similar to typical office traffic that has an am and pm peak, with occasional queuing expected. Outdoor noise associated with the outdoor play areas at B2K will 17 W only be heard by a few residences to the north of the site and the adjacent church immediately west. Outdoor noise associated with the sports fields at Foster High currently affect the homes along S. 142nd St the most; approval of the conditional use permit will not significantly change the level or direction of noise leaving the site. :: ster" At Foster High School, site plan changes associated with this CUP request are minor and consist primarily of an expanded building footprint, a reduced northern parking lot, and relocation of sports fields. The potential for light pollution from relocated sports fields affecting adjacent residences is addressed by a suggested condition of approval requiring lighting to be directed only to Foster facilities, and limiting the hours of use of the facilities closest to residences to 8am to 10pm. As Foster High has existed in its current location and design since at least 1952 with minimal conflicts with the neighborhood and no additional enrollment is anticipated, approval of the CUP will not decrease the school's compatibility within the Foster and Thorndyke neighborhoods. B2KI' The B2K Early Leaning Center is a new proposed use for the site. Located adjacent to Foster, the B2K's surrounding land uses are mostly the same as for Foster. The school site is tucked away on the northeast corner of the School District's properties, not immediately visible from any public street. To the north of the B2K site are a few single family residential houses, separated from the school by about 250 linear feet and 15 feet of grade change. Landscaping including evergreen trees around the northern perimeter of the B2K site and in the rear yards of properties to the north will shield the audial and visual impacts the B2K school will have on the nearby residences. The B2K school will be visible only to St. Thomas Church to the west and Showalter Middle School south of the site. The easternmost church building sits 160' west of school building, and the Type I landscaped perimeter around the school property will help to reduce visual impacts of the two -story school structure. The flat roofs proposed for B2k and the midcentury modern aesthetic mimic the lines of the church buildings, increasing its compatibility with adjacent development. 4. The proposed use shall be in keeping with the goals and policies of the Comprehensive Land Use Policy Plan. The proposed projects implement several goals and policies in the Residential Neighborhoods and Transportation Elements of the 2015 Tukwila Comprehensive Plan. Many of the recommended conditions of approval derive from the implementation strategies of the Plan, intended to achieve the Plan's goals. CIrnar)teir 7 Rertii leinV:ia l N iialrnborlrnooa:Is 73,4 Use new development td.Y,.fo, °ate P %, °rense of community, and; replace lost vegetation and open , ° *pP %4"es with improvements of at least equal value to the community. Eiryrrplrnarti ze Ipu.dlkrllk, Irneafth ai ndl sa� "eta+ a„oncerirns i n (JeveII )pirnei nV dJesiigi n. 18 20 Mandate, V':Ihirou.dgllu the Zoiruiiirul'l Co (le air'ud:l (Jestiillir'u ir'ynair'uu.drulk, Iruiigh d:ju.dalHty Ipu.dlkrlHc �aciilfty air'ud:l ICrrii ite (JeveIlr° piryrreint dJesiigir'u r'u iigllulkrorlluood:i d:jrdall tyV Coir'uHiruude to (°)rlk wfth r'.tia„Iluo(III d:fistiroa,V:s r' tieMir'ull 11 ukw lla rtiVudd:ients to a insu.dire rtia;lluo(III 1:ac llffiies Ipirovkle d:ju.daIIiity Ipu.dIbII c spaces. Coir'uHiruude d:JeveIlopiiirug air'ud:l iir yrrlf'rller'yrrer'uV:iiir'ull Ifriroject.ti �`iroir'n the /alllk air'udl R(`)IIII Rain air'udl Safe Routes to Sa„Ilud °xfl, with a ireinew (l er'nlC'rlluar'.tiiis on a„or'nirnu.dir'dty iiruw °flveiryrrein ruru(l erullr ger'yrrer'u�t. One vision articulated in the Plan calls for development to increase community pride with high - quality design and public spaces. The proposed developments are public amenities to be used by and serve Tukwila residents during school hours and sometimes evenings and weekends as well. As such, they should be designed with quality materials and with well- thought out designs that enhance the surrounding neighborhood. While that can describe most aspects of the applications submitted, there are a few improvements that can be made that will increase the quality of the asset to the community these schools will be. The potential for traffic queuing at the B2K site could impact the ability of emergency vehicles to access all areas of the site. In order to ensure adequate access for emergency vehicles at all times and the safety of children and others at B2K, a recommended condition of approval is the creation of a collaborative traffic management plan which ultimately must be approved by Tukwila Fire Department. Emergency access to school facilities will also be improved by distributing traffic throughout the day; an outcome achievable with staggered classroom bell times. These minor improvements are suggested as recommended conditions of approval in the CUP. !r @. 13.2 5 Require all new streets, street improvements, property developments and property improvements tY provide sidewalks and other non motorized Ndfd%*tdddture "dd*N*ten with subarea plans. Property developments and improvements if) "Ymmdr-cia pareas shall provide direct and pedestrian access from sAeI%lks to buildings, as well as to, from and between parking d %d'eas. Design t r including retrofit rrdYed::t, *r accommodate .rrrd.YtdYrNzdsd'. dwrrd rrd.rrr... motorized travel modes Ndd d.Yd'de te) reduce injuries and fatalities, to provide e d %4",fl"e,° s to services, and to encourage non ...motorized travel. 'The design should include well defined, safe wr appealing spaces "d.Yr pedestrians and bicyclists. The above goals have been appropriately incorporated into the recommended conditions of approval requiring the District to construct pedestrian and vehicular improvements along S. 142nd St. Please see the discussion below responding to criteria for conditional use permit approval #5 for a detailed description of transportation - related mitigation measures. 19 21 5. All measures shall be taken to minimize the possible adverse impacts which the proposed use may have on the area in which it is located. :: ster" The Foster High School expansion's possible adverse impacts are primarily visual, concern noise or light, or affect parking in the neighborhood. The visual impacts possible concern the proposed building addition's architectural style, building materials, and degree of compatibility with the neighborhood. Recommended conditions of approval for potential adverse visual impact of the expansion are located in the Design Review section of this report. The potential for spillover event parking is addressed in the Variance section of this report. Noise and light impacts are addressed in the recommended condition of approval that lighting of the school property along S. 142nd and S. 144th Streets and 42nd Ave S. be directed inward toward Foster High and its facilities. Also recommended is a prohibition of lighting and use of the softball field and northernmost tennis courts past 10 pm. B2K1' The potential visual impacts of the new school on nearby development have been largely incorporated into a thoughtful site design and some additional landscaping on the west and south side is required to break up the visual mass of those facades. See Design Review section for detailed discussion. The biggest impact to the neighborhood will be increased traffic and circulation changes. Topographic, location, and site security conditions together means the school will have just one access point, via easement and private drive located along the south perimeter of the church property. Tukwila School District anticipates 75% of kindergarten students will take the bus to and from school, and the remaining 25% arriving by private vehicle. Pre - kindergarten and infants are anticipated to arrive almost entirely by private vehicle. While the District does not anticipate any pedestrian or bicycle arrivals, there are many children residing within a 1 -mile radius of B2K who are ineligible for bus service. The applicant has submitted a Traffic Impact Analysis (TIA) (Attachment 1) with predictions of future traffic patterns and counts at intersections nearby, based on existing conditions and the planned development of a school with up to 300 kindergarten and 140 infants and pre -k students. The TIA includes trip generation calculations and assesses the delay at nearby intersections, based on the mode split data provided by the District and Institute of Traffic Engineers (ITE) land use codes for elementary school (for the 300 kindergarteners) and daycare (for 140 infants and preschool children). Delay is categorized as Level of Service (LOS) A -F, with traffic at LOS A intersections experiencing little or no delay, and traffic at LOS F experiencing extreme delays, causing cars to form long queues. Traffic is split into am peak -hour trips and pm peak -hour trips, corresponding with typical drop - off and pick -up times. 134 inbound AM and 91 inbound pm peak hour trips are anticipated. This traffic will impact the intersections at 42nd Ave S. and S. 142nd and S. 144th streets the greatest. 22 During the am peak hour, these intersections currently operate at Level of Service level B and C, respectively, and at LOS B and A in the pm peak hour. The intersection of S.144th Street and S.42 nd Ave will change from a four -way stop intersection to a signalized intersection between now and 2022, changing the delays experienced by traffic as a baseline. After signalization, this intersection will operate at LOS B during peak am and pm times. With increased traffic due to development of B2K, the intersection will operate at LOS C, characterized by average delays. To help mitigate the traffic - related impacts to the neighborhood, the School District will make several improvements to transportation infrastructure near the site. A sidewalk, pedestrian lighting, and vehicular turnaround immediately west of the school site on the church easement and private drive will be among the improvements planned. Also planned is the development of the missing link of S. 142nd Street, from 431d Ave S. to 44th Ave S. Currently a dirt and gravel pedestrian -only trail, the section of undeveloped right -of -way will be developed with a 23' wide, two -way asphalt driving surface and a 6" curb and 6' wide sidewalk to the south. Because of traffic patterns at elementary schools throughout the District and Showalter Middle School, there is concern that parents picking up their children will queue on and offsite. Emergency vehicles (primarily fire trucks) need to access all portions of schools at all times, including pickup and dropoff times when vehicular traffic is slow and heavy. Two emergency vehicle access points to the site are identified; the primary access at the southwest corner of the site and a secondary access point through bollards and a path between Showalter Middle School and B2K. For the secondary access to be available, the parking lot at Showalter Middle School needs to be free of stopped or slow- moving cars. Tukwila School District proposes staggered bell times between the two schools to ensure emergency access to B2K even if queuing extends off the B2K property. Onsite, there is enough curb length to allow approximately 10 cars at a time to queue in the designated dropoff lane from the southeast corner of the parking area curving through the entry to the school. Internal to the parking lot in the main drive aisle, there is space for another 16 21 23 1. f [p P ., C k 1 1 trorrtT.6dlnek WC ya Ck'Wwenxamk v E I I 1 f Because of traffic patterns at elementary schools throughout the District and Showalter Middle School, there is concern that parents picking up their children will queue on and offsite. Emergency vehicles (primarily fire trucks) need to access all portions of schools at all times, including pickup and dropoff times when vehicular traffic is slow and heavy. Two emergency vehicle access points to the site are identified; the primary access at the southwest corner of the site and a secondary access point through bollards and a path between Showalter Middle School and B2K. For the secondary access to be available, the parking lot at Showalter Middle School needs to be free of stopped or slow- moving cars. Tukwila School District proposes staggered bell times between the two schools to ensure emergency access to B2K even if queuing extends off the B2K property. Onsite, there is enough curb length to allow approximately 10 cars at a time to queue in the designated dropoff lane from the southeast corner of the parking area curving through the entry to the school. Internal to the parking lot in the main drive aisle, there is space for another 16 21 23 vehicles to queue. Additionally, there are 38 spaces available beyond predicted staff needs that can be utilized for pickup and dropoff. Queueing is possible beyond the site boundary. The applicant has submitted proposed staggered start and end time for the different learning groups at B2K and current bell times for Showalter Middle School, below. To ensure adequate emergency vehicle access at all times, planning staff recommends conditions of approval to manage on and off -site queuing, and to ensure staggered start and end times for B2K kindergarten and preschool classes. Additionally, the B2K facility is proposed for early childhood learning up to Kindergarten classes. Traffic impacts of such a facility are different from an elementary school that typically has Kindergarten to fifth grade classes. If the program at B2K is revised or the school is converted to an elementary school a new Conditional Use Permit shall be required to fully analyze and mitigate any impacts. Conclusions Criteria 1: The proposed uses, a public elementary and high school, are often found in residential zones. A high school has operated at the Foster High School site since 1952. Both schools are public schools, serving the students and community of Tukwila. The proposed uses will not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity of the proposed use or in the district in which the subject property is situated. 2. Criteria 2: Both Foster and B2K projects exceed minimum setback requirements. For Foster High, variances are requested for building height and parking. For B2K, a variance for building height is requested. The B2K site meets parking standards for the use. If the variance requests are approved, the proposed uses shall meet or exceed the performance standards that are required in the district it will occupy. 3. Criteria 3: The uses surrounding the subject site should tolerate the am and pm peak traffic that will be characteristic of the school use. There is the potential for light spillover from Foster sports facilities to affect residences along S. 142nd Street. With a condition of approval limiting the hours of tennis court and softball field lighting and ensuring lights are directed only on the school campus, the proposed uses shall be compatible 22 24 Starting Bell Ending Bell Early Release Bell Showalter Middle School 8:00 am 2:30 pm 11:30 am B2K Kindergarten 9:00 am 3:10 pm 12:45 pm B2K Preschool ECEAP, AM Session 8:00 am 11:00 am n/a B2K Preschool ECEAP, PM Session 12:10 pm 3:00 pm n/a B2K Head Start, AM Session 8:00 am 11:30 am n/a B2K Head Start, PM Session 12:00pm 3:30 pm n/a To ensure adequate emergency vehicle access at all times, planning staff recommends conditions of approval to manage on and off -site queuing, and to ensure staggered start and end times for B2K kindergarten and preschool classes. Additionally, the B2K facility is proposed for early childhood learning up to Kindergarten classes. Traffic impacts of such a facility are different from an elementary school that typically has Kindergarten to fifth grade classes. If the program at B2K is revised or the school is converted to an elementary school a new Conditional Use Permit shall be required to fully analyze and mitigate any impacts. Conclusions Criteria 1: The proposed uses, a public elementary and high school, are often found in residential zones. A high school has operated at the Foster High School site since 1952. Both schools are public schools, serving the students and community of Tukwila. The proposed uses will not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity of the proposed use or in the district in which the subject property is situated. 2. Criteria 2: Both Foster and B2K projects exceed minimum setback requirements. For Foster High, variances are requested for building height and parking. For B2K, a variance for building height is requested. The B2K site meets parking standards for the use. If the variance requests are approved, the proposed uses shall meet or exceed the performance standards that are required in the district it will occupy. 3. Criteria 3: The uses surrounding the subject site should tolerate the am and pm peak traffic that will be characteristic of the school use. There is the potential for light spillover from Foster sports facilities to affect residences along S. 142nd Street. With a condition of approval limiting the hours of tennis court and softball field lighting and ensuring lights are directed only on the school campus, the proposed uses shall be compatible 22 24 generally with the surrounding land uses in terms of traffic and pedestrian circulation, building and site design. 4. Criteria 4: The proposed school projects implement several policies of the Comprehensive Plan related to high - quality public facilities and vehicular, pedestrian and bicycling modes of travel. Due to limited access to the B2K site, there is a concern that vehicular traffic could congest, blocking emergency vehicle access to the school. Suggested conditions of approval require a Traffic Management Plan to be created in conjunction with Tukwila Fire Department, designate an area at the site entry to remain free of vehicles at all times, and mandate staggered start and end times of classes. With these conditions, the proposed uses shall be in keeping with the goals and policies of the Comprehensive Land Use Policy Plan. 5. Criteria 5: Staff has suggested conditions of approval addressing the potential for traffic and queuing impacts related to B2K development. Additionally, the District will construct improvements to S. 142nd Street and on the church access driveway as part of project approval. At Foster High, the potential for light spillover to negatively impact adjacent residences has been addressed in a recommended condition limiting the hours of use and mandating low spillover offsite. With recommended conditions of approval, all measures have been taken to minimize the possible adverse impacts which the proposed use may have on the area in which it is located. Recommendation Staff recommends adoption of the above findings and conclusions and approval of the conditional use permit with the following conditions: III:::::`oster III:..3 III 1. Lighting of the Foster High School property along S. 142nd and S. 144th Streets and 42nd Ave S. shall be directed inward toward Foster High and its facilities. 2. Lighting and use of the softball field and northernmost tennis courts at Foster High School shall be prohibited between the hours of 10pm and 8am. 3. Prior to the issuance of the certificate of occupancy the applicant shall create a draft Traffic Management Plan with the participation of at least one person from each of the following stakeholders: school administrator or teacher, nearby residents, City of Tukwila Public Works, City of Tukwila Fire Marshal's Office, City of Tukwila Police and parents of children enrolled. The Traffic Management Plan must include procedures for school enforcement of dropoff and pickup procedures, the start and end times of B2K sessions, and methodology for collecting data /observations of queing (both onsite and offsite) This Plan shall be reassessed after three months of the opening of B2K (anticipated to open Fall 2019) to address any offsite impacts 23 25 and resubmitted to the City Engineer for the City's approval. Additional assessment shall be done eight months after the opening of B2K, and changes resubmitted for the City approval. The District is required to implement the Traffic Management Plan. Additionally, the proposed sessions for preschool -aged children, including HeadStart and ECEAP program sessions, that have start and end times at least 30 minutes apart from Kindergarten session start and end times shall be maintained. 4. To ensure adequate emergency vehicle access at all times at B2K, school enforcement of student drop -off, pick up and queuing on -site is required. There must be no vehicular stopping, encroachment or back -up occurring on the church -owned private drive between the western edge of the turnaround and the westernmost edge of the parking spaces located on the school campus. See attached Attachment N for the area to remain free of stopped traffic at all times. 5. This conditional use permit is only valid for a birth to Kindergarten facility and a new conditional use permit is required if the school is converted to an elementary school. 26 VARIANCE FINDINGS This report addresses each variance request (Foster building height and parking reduction, and B2K building height) . After discussion of all three variance requests, each request is compared to the criteria necessary for variance approval, followed by conclusions and staff recommendation. IF¢:) emir° IHIi(. lh S N'.)(:)II Variances are requested to allow the 30 -ft. height limitation in the LDR zone to be exceeded by 2 feet for portions of Foster High, and to allow a reduction in parking required for Foster High from 440 spaces to 188. Building Height- Foster The maximum height for structures in the LDR zone is 30 feet. The proposed height of the additions to the building measure 31' in height, and approval of an additional 1' of height is requested to accommodate minor changes in the design process. Building height is measured at the top of structures with flat roofs and at the midpoint of peaked roofs. The midpoint of the side - gabled roof form on the existing brick fapades measures 37' in height. Although taller than the height allowance for the LDR zone, the gabled roof helps soften the massing of the large structures and hides mechanical equipment from view. Additionally, the performing arts center, though in the back of campus, is flat- roofed and 66' tall. The proposed additions to the Foster High School buildings will be 2 stories, consistent with the existing academic and activity wings. The additions have flat and not peaked roofs, and are significantly shorter than the existing wings, measuring 31' in height. Additionally, the predominant grey tones of the additions will recede from view, allowing the brick wings to maintain their prominence as the fapade of Foster High. 25 27 Parking Reduction The applicant requests a variance to reduce the number of off - street parking spaces required at Foster High School from 440 to 174.There are currently 241 parking spaces and with the expansion they are proposed to be reduced to 174 spaces. No student enrollment increases are anticipated with the expansion. Per TMC 18.56, the parking requirement for high schools is 1 space per staff member, plus 2 spaces for every 5 students or visitors. The current enrollment is 878 students and 87 staff members. The District proposes to use parking at Showalter Middle School and B2K for special events such as when the Performing Arts Center is rented out to community groups, when parking demand exceeds Foster's supply. The variance is needed due to a reduction in area available for parking created by the expansion of the high school footprint and the reconfiguration of the sports fields. In 1989, a cooperative parking agreement between the School District and the Tukwila Pool (89- 1-SPE) was approved, allowing 282 parking spaces to be shared between pool customers and the High School, with a secondary parking lot to be created later, creating an additional 62 parking spaces. Critical to approval of the parking agreement was data demonstrating the underutilization of the existing 160 parking spaces onsite. Because the number of parking spaces and configuration was approved in 1989 but doesn't meet current zoning requirements, the parking is considered legally nonconforming. Chapter 18.17- Nonconforming lots, Structures and Uses states that when a change of use occurs requiring an increase in parking by an increment less than 100 %, then the requirements of the Off - Street Parking and Loading regulations apply to only the new parking required. Because OR W. parking for high schools is calculated based on student enrollment and staff size which aren't anticipated to change with project approval, there is no additional parking required of the site. The expansion and renovations require a conditional use permit and parking will be further reduced, thus a variance is required. Birth to Kin(Yergarten A Variance is requested to allow the 30 -ft. height limitation in the LDR zone to be exceeded by up to 5 feet for portions of Birth -to- Kindergarten Early Learning Center (B2K). Building Height- B2K The maximum height for structures in the LDR zone is 30 feet. The proposed height of the additions to the building measure 32' in height, and approval of an additional 3' of height is requested to accommodate minor changes in the design process. Building height is measured at the top of structures with flat roofs and at the midpoint of peaked roofs. The new school will have flat roofs on both the one -story administrative and two -story classroom portions of the structure; the flat roof at the front of the 2 -story classroom wings sloping gently down as shown on the northern elevation. The flat roofs planned for B2K are consistent with the St. Thomas church building immediately west, which appears to be classrooms or offices along an open air hallway, constructed in 1963 in a mid - century modern style. The site is located in the low- density residential (LDR) zone, and it is also in the Public Recreation Overlay (PRO) zone. The PRO zone is intended to reserve areas owned or controlled by a public or quasi - public agency for passive or active recreational use. The development standards of the underlying zone apply to properties with the overlay, however structures are allowed one additional foot of height per four feet of excess setback, up to a maximum height of 50 feet. Criteria for Granting Variance Permit Typically, the Hearing Examiner makes a decision on a zoning code variance request. However. per TMC 18.104.030 the applicant has requested a consolidated hearing for the conditional use, variance request and design review applications. The Planning Commission shall consider all requests for any variance from the Zoning Code; variance from the provisions of such ordinances shall not be granted by the Planning Commission unless the Planning Commission finds that the applicant has demonstrated all the following facts and conditions exist. Staff makes the following findings using the Code's criteria for granting variance permits (18.72.020) listed in italics: 1. The variance shall not constitute a grant of special privilege inconsistent with the limitation upon uses of other properties in the vicinity and in the zone in which the property on behalf of which the application was filed is located. 27 W Building height- Foster: Schools are unique uses and are permitted in residential zones subject to conditional use permit approval. Although the proposed building additions exceed the height limit for the LDR zone, the deviation requested is insignificant, and will be used to public benefit. Given that the existing school building far exceeds the maximum height of LDR zone, allowing the new addition to exceed the maximum height by one foot does not constitute a grant of special privilege. Any other property that has an existing building and wants to add and exceed the height by one foot could apply for a variance. Parking: Granting the variance would not result in unreasonable accommodations for a school in the LDR zone. The reduction in parking is needed for necessary school improvements which cannot be accommodated by other means such as buying more land or relocating to a different site. Granting the variance is not a special privilege as any use has the same rights to apply for a variance if the parking demand can be met with supply. Building height- B2K: The height variance is requested because the school is a public use in the LDR zone, located near homes of the children it will serve. Additionally, the property has a Public Recreational Overlay(PRO), which allows a height bonus of one additional foot for every four feet of excess setback (i.e., setback over and above the LDR minimum standard), up to a maximum height of 50 feet. The current proposal complies with this requirement. However, since the legislative intent of the height bonus for PRO is for recreational uses and approval of height bonus is subject to Board of Architectural approval under TMC 18.42.030, it was included as part of the variance request. Approval of the height variance does not constitute a grant of special privilege not afforded to other properties in the vicinity, as other properties are developed with single - family homes typical of the LDR zone. Any uses permitted in LDR with PRO such as recreation facilities or public schools could apply for approval by the Board of Architectural Review. 2. The variance is necessary because of special circumstances relating to the size, shape, topography, location or surrounding of the subject property in order to provide it with use rights and privileges permitted to other properties in the vicinity and in the zone in which the subject property is located. Building height- Foster: High Schools are a conditional use regardless of land use zone in Tukwila; it is logical that the location of Foster High is in a predominantly residential neighborhood. The height limitations in the LDR zone are appropriate for a single - family residence. The variance is necessary because the high school is an existing building and any expansion with a larger footprint is not feasible as it would not be possible to accommodate parking and other supportive uses. Parking: The size of the site is not large enough to accommodate the required parking. Additionally, the applicant has shown through a parking analysis that even with the reduction in parking requirements afforded by the Variance, the available parking will likely continue to be underutilized most of the time. 30 Building height- B21K: Elementary schools are typically located in the neighborhoods they serve and so it is not at all unusual the B2K is in the LDR zone. Unlike the homes in the neighborhood, the school is a public/ institutional use, and as such will have higher ceiling heights, wider aisles and different construction standards, finishes, and materials from residential construction. Additionally, the property has a Public Recreation Overlay that allows height bonus of one additional foot for every four feet of excess setback and the current proposal complies with this requirement. The proposed height of 32 feet complies with height requirements of PRO. 3. The granting of such variance will not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity and in the zone in which the subject property is situated. Building height- Foster: The requested height deviation is insignificant to the size and scale of the existing Foster High structures, and will not be detrimental to neighboring properties or uses. Parking: The parking requirement for high schools is 1 space per staff member, plus 2 spaces for every 5 students or visitors. In April 2017, the Foster High School website listed 87 staff members. Foster enrollment for the 2016 -2017 school year is 878 students. Assuming no increase in enrollment and no more than 5 visitors onsite at any given time, Foster High School is required to have 440 parking spaces. Foster High currently has 241 parking spaces and is requesting to reduce that number to 174 spaces, with an additional 12 spaces available in the bus loading zone on 42nd Ave S. when school is not in session. The applicant supports their request for a variance with a study showing low parking demand and by proposing that parking supply be calculated for the entire parcel, which includes Showalter and B2K parking areas. The parking study by Gibson Traffic Consultants observed that 131 cars were parked at Foster High during the highest demand period during a typical school day. Just as in 1989, peak parking demand at Foster is in the evening hours during events at the sports fields or Performing Arts Center. Parking demand for special events in the Performing Arts Center or the football stadium is estimated to be 286 spaces, which the applicant proposes to accommodate with the 381 parking spaces at Foster, Showalter, and B2K schools combined. Below is a chart showing parking supply and demand for Foster High School. 31 Parking Supply Parking Demand Existing spaces, Foster only 241 Proposed spaces, Foster only 174 Proposed spaces, Foster, Showalter, B2K' 381 Peak daytime demand 131 Peak nighttime demand3 286 Excess parking provided by proposal 95 31 1. Includes 122 parking spaces at Showalter, 73 spaces at 132K, and 12 spaces in the Foster High bus loop, available only for special events. Not included in supply count are 17 spaces marked for Tukwila pool patrons. 2. As observed by Gibson Traffic Consultants. Includes parking needs of technology and maintenance building employees who will work and park in an offsite location after project approval. 3. Nighttime demand calculated for max attendance at the Performing Arts Center. 2017 is the last year graduation ceremonies will be held onsite. Other factors that can affect parking utilization at Foster High during evening hours include the scheduling of multiple events in the same evening, and the relative convenience of parking on the street and walking a shorter distance to the campus than the distance from Showalter Middle School and B2K parking lots. City staff has heard complaints from residents near the High School about attendees at evening events at the High School parking on residential streets, preventing residents from parking near their houses. This neighborhood impact has recently worsened as property owners near the schools subdivide their lots, generating increased demand for on- street parking while creating few additional on- street spaces. If no increase in student enrollment is anticipated as a result of Foster High School expansion then the parking demand is not likely to increase with project approval. However offsite parking impacts could result from special events; and scheduling of multiple events during the same time. The negative impacts generated by parking demand surpassing parking supply can be mitigated through conditions of approval that directly address those impacts and with improved management of parking resources. As a condition of approval of their 1989 Conditional Use Permit, the District was required to direct drivers to overflow sites when parking demand exceeds supply during evening events. An effective parking management plan could include flaggers directing drivers on where to park, and a map showing the designated walking route from Showalter parking areas to the Foster campus. Through the City's temporary and special event permitting process, larger events could propose their own measures to mitigate traffic and parking impact which may include shuttle service and advertisement of designated parking locations. Ga 32 To not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity of the subject site, the Tukwila School District shall prepare a parking management plan suitable for any event occurring when the High School is not in session with an anticipated attendance of up to 350 people. The plan must include strategies to direct attendees to parking areas at Foster, Showalter and B2K campuses and discourage parking on adjacent streets. This parking management plan will be submitted at the time of building permit application for expansion of Foster High School, and must be approved by Planning, Fire, Police, and Public Works departments prior to the issuance of building permits for Foster High School expansion. The District is required to utilize the measures in the plan for any event of up to 350 people in attendance, and require that outside groups renting Foster High facilities implement the plan as a condition of the rental agreement. For events with anticipated attendance of more than 350 people, a Temporary and Special Event Permit is required. Applicant- Tukwila School District or any group renting Foster facilities - must apply for the permit at the Fire Marshal's office at 6300 Southcenter Boulevard, Suite 209, at least 14 days prior to the event. Applicant shall submit suggested measures to prevent attendees from parking on adjacent streets. Building height- B2K: The granting of the height variance will not be detrimental to the public or adjacent property owners. B2K's architectural design is complimentary to the church immediately west, comprised of several buildings one and two stories tall. There is also an elevation change from the church to the B2k site, further diminishing any visual impact of the 2' additional building height. Additionally, the proposed height complies with the height bonus requirements of the Public Recreation Overlay subject to approval by the Board of Architectural Review. 4. The authorization of such variance will not adversely affect the implementation of the Comprehensive Land Use Policy Plan. Building height- Foster: Granting the variance will not adversely affect Comprehensive Plan implementation. Approval of the overall project implements Comprehensive Plan Policy 7.3.4, "continue to work with school districts serving Tukwila students to ensure school facilities provide quality public spaces." Parking: Variance approval would help implement several Comprehensive Plan Policies related to the provision of adequate public services, including Policy 3.6.4, "Continue and expand partnerships with the school districts serving Tukwila students, in support of programs that seek to improve school performance and student success" Building height- B2K: Granting the variance will not adversely affect Comprehensive Plan implementation. Approval of the overall project implements Comprehensive Plan Policy 7.3.4, "continue to work with school districts serving Tukwila students to ensure school facilities provide quality public spaces." 31 33 5. The granting of such variance is necessary for the preservation and enjoyment of a substantial property right of the applicant possessed by the owners of other properties in the same zone or vicinity. Building height- Foster: Denial of the variance request will result in a larger contrast between the new additions and the existing fapades of Foster High. Granting the variance is consistent with the use of the property as an institution serving the public. Parking: The granting of the variance is necessary to improve and expand high school facilities serving students. Without the variance approval, sports facilities would need to be cut, or academic classrooms reduced, reducing the value of the school and its facilities to the larger Tukwila community. Provided the parking demand is managed so that there are no offsite parking impacts then granting of such a variance does not constitute Building height- B2K: Granting the building height variance allows the site to build in accordance with its Public Recreation Overlay zoning designation. All requirements for buildings over 30 ft. in height in the PRO zone have been met by the proposal. 6. The need for the variance is not the result of deliberate actions of the applicant or property owner. Building height- Foster: The property owner has not taken any deliberate action to require a variance from zoning code requirements. Parking: The need for a parking variance is related to the services and facilities the District provides for public and community benefit and is not a result of deliberate actions unrelated to the use of the site as a school. Building height- B2K: The property owner has not taken any deliberate action to require a variance from zoning code requirements. The applicant has formally applied for variance approval despite meeting the additional setback requirements of the PRO zone for structures taller than 30 ft. Conclusions Criteria 1: The deviation in building height requested at both campuses is insignificant. At Foster High, the 31' height of proposed additions is shorter than the predominant brick wings of Foster, and far shorter than the performing arts center. The parking variance is necessary to ensure space for school improvements and facilities normally associated with high schools. The height variance requested of B2K is minor, and consistent with the PRO requirements for additional building height. A variance can be requested for any other property in the LDR zone. The variance shall not constitute a grant of special privilege inconsistent with the limitation of uses of 32 34 other properties in the vicinity and the zone in which the property on behalf of which the application was filed is located. Criteria 2: At Foster High, the variance is necessary due to the inability to expand the existing use to other parcels. Expansion with a larger footprint is not possible without further reducing parking or the space available for sports facilities. The size of the Foster High site is not large enough to accommodate all of the parking required by code. The proposed height of B2K complies with height requirements of the PRO zone. The variance is necessary because of special circumstances relating to the size, shape, topography, location or surrounding of the subject property in order to provide it with use rights and privileges permitted to other properties in the vicinity and in the zone in which the subject property is located. Criteria 3: The requested additional building height for Foster High is insignificant to the size and scale of existing school buildings. The parking analysis and staff observation shows that even with a reduction in parking spaces available at Foster, parking areas will be underutilized most of the time, as no increase in enrollment is anticipated. The recommended conditions of approval reduce the likelihood and severity of parking demand exceeding supply for nighttime and special events. Approval of a parking management plan and requiring a Temporary and Special Events permit for events with more than 350 people in attendance will minimize the burden the high school and community facilities will have on nearby residences. At B2K, the height variance is insignificant and will not impact the neighborhood, as the site and building will not be visible from any public street. The granting of such variance will not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity and in the zone in which the subject property is situated. Criteria 4: Approval of the Foster and B2K projects implements several Comprehensive Plan policies including Policy 7.3.4, "continue to work with school districts serving Tukwila students to ensure school facilities provide quality public spaces ". The authorization of such variance will not adversely affect the implementation of the Comprehensive Land Use Policy Plan. Criteria 5: Granting of the building height variances is consistent with the use of the sites as public institutions. Granting the parking variance allows the District to accommodate occasional nighttime and special events when parking demand exceeding onsite supply, while recognizing that parking provided is largely underutilized. The granting of the parking variance affords the majority of the school site to be used for academic and athletic uses of primary importance to a public school. The granting of such variance is necessary for the preservation and enjoyment of a substantial property right of the applicant possessed by the owners of other properties in the same zone or vicinity. Criteria 6: The District has taken no deliberate action to require a variance from code requirements; all three variance requests are directly related to the use of the properties as schools, and requested for public benefit. The need for the variance is not the result of deliberate actions of the applicant or property owner. 33 35 Recommendation Together with conditions of approval, the criteria for variance approval can be met for each variance request- building heights and parking reduction. Building Height- At Foster High, the variance is necessary due to the inability to expand the existing use to other parcels. There is no room on the site to expand the building footprint further, without the elimination of sports facilities. Staff recommends approval of the building height variance for Foster High School with no conditions. Parking The granting of the parking variance affords the majority of the school site to be used for academic and athletic uses of primary importance to a public school. Improved management of onsite parking and better utilization of the parking areas at Showalter and B2K schools will significantly reduce the potential for nighttime and special events to affect parking for nearby residents. Staff recommends approval of the parking variance with the following conditions: 1. Tukwila School District shall prepare a parking management plan suitable for any event occurring when the High School is not in session with anticipated attendance of up to 350 people. The plan must include strategies to direct attendees to parking areas at Foster and Showalter campuses and discourage parking on adjacent streets. This parking management plan will be submitted at the time of building permit application for expansion of Foster High School, and must be approved by Planning, Fire, Police, and Public Works departments prior to issuance of building permits. The District is required to utilize the measures in the plan for any event of up to 350 people in attendance, and require that outside groups renting Foster High facilities implement the plan as a condition of the rental agreement. 2. For events with anticipated attendance of more than 350 people, a Temporary and Special Event Permit is required. Applicant- Tukwila School District or group renting Foster facilities- must apply for the permit at the Fire Marshal's office at 6300 Southcenter Boulevard, Suite 209, at least 14 days prior to the event. Applicant shall submit suggested measures to prevent attendees from parking on adjacent streets. U Building Height- The 2' additional building height requested of B2K is insignificant, and meets the additional setback requirements of the PRO zone for structures taller than 30 feet. Staff recommends approval of the building height variance for B2K with no conditions. Cm 36 DESIGN REVIEW In reviewing any application for non - residential development in a Low Density Residential Zone, the design review criteria below shall be used by the Board of Architectural Review in its decision making. Tukwila Municipal Code 18.70.090 Nonconforming Landscape Areas requires all projects undergoing Design Review to comply with current landscaping requirements. The Board of Architectural Review may modify the requirements in circumstances where strict compliance would create substantial practical difficulties, the existing and proposed additional landscaping and screening materials together will adequately screen or buffer possible use incompatibilities, soften the barren appearance of parking or storage areas, and /or adequately enhance the premises appropriate to the use district and location of the site. In the following discussion, the architectural review criteria for Multi - Family, Hotel and Motel Design Review Criteria from the TMC Section 18.60.050(A) are shown below in italics, followed by Staff's comments on how the Foster and B2K proposals compare to the guidelines. Incorporated into Staff's comments are observations made by John Owen, AIA of MAKERS Architecture and Urban Design. The Department of Community Development contracted John Owen for architectural design review services due to concerns about building design and materials that were unresolvable through the biweekly coordination meetings of City staff and the consultant team hired by Tukwila School District. The applicant's response to the design review criteria is Attachment L to this staff report. Criteria for Approval 1. SITE PLANNING. a. Building siting, architecture, and landscaping shall be integrated into and blend harmoniously with the neighborhood building scale, natural environment, and development characteristics as envisioned in the Comprehensive Plan. For instance, a multi - family development's design need not be harmoniously integrated with adjacent single- family structures if that existing single- family use is designated as "Commercial" or "High- Density Residential" in the Comprehensive Plan. However, a "Low- Density Residential" (detached single - family) designation would require such harmonious design integration. ::ier.m As an addition to an existing building on an already developed site, Foster High School's expansion has few options for building siting. The parcel is constrained by development on all sides, and expansion of the site is not a viable option. Additionally, the playfields for students of the Foster and Showalter Middle School need to be housed on the Foster campus due to the compact Showalter Middle School campus bordered by the future B2K Early Learning Center to the north, Foster Stadium to the west, and residential development immediately east. 35 rGYA Despite the site constraints of additions to a fully developed site, the Foster High School expansion continues the pattern of existing development along a diagonal axis and reinforces the orientation of the school's fapades to both 42nd Ave S. and S. 144th Street, maintaining the pedestrian- oriented site design. The additions are sited in areas where the existing internal circulation patterns can continue post- renovation- primarily at the ends of the two wings. Students will enter the school at a diagonal from the site's southwest corner, and disperse into academic and activities in two different wings of the school in the same way they enter school now. Just as now, larger parking areas will be clearly subordinate to the school campus, accessible from S. 42nd Ave and S. 144th Street, but located behind the high school. Because the future additions extend the school along both street frontages maintaining the current circulation patterns inside the campus, the building siting of the Foster modernization project can be described as blending harmoniously with the neighborhood. The scale of Foster High can also be described as harmonious with its surrounding residential development. The majority of the existing Foster High is two stories and about 30' tall; a height commensurate with the height maximum in the LDR zone. Foster High includes many amenities (performing arts center, football stadium, sports courts) with heights or fencing not often found in residential neighborhoods; the benefit these facilities bring to the neighborhood and the students offset the few instances where the scale is larger than surrounding single - family residential development. Although the high school is a publicly funded project, the building components (brick veneer, use of classic architectural features including gabled roofs, columns and friezes) portray a sense of permanence and quality to what has become a resource to the Foster and Thorndyke neighborhoods. At the entry to the building, the proposed additions blend harmoniously into the courtyard aesthetic, with grey horizontal sunshade lines mirroring the horizontal lines of the stucco veneer between the brick wings and the main entry to the school. The entry to the school meets the criteria for integration with the neighborhood building scale, natural environment, and development characteristics. The STEAM and auxiliary gym additions are designed with dissimilar materials as building components. Fiber cement panels in grey, rust and dark blue pick up the colors on the existing frontages of both wings of the school, but not the brick veneer, brick frieze at the second story, or gabled roof pitch. The STEAM and auxiliary gym additions diverge from the predominant brick wings of the Foster Campus so significantly in materials, form and design, the site planning criteria of integration into the neighborhood cannot be met. Please see the discussion in 2.b. for further detail. B2KI' The orientation of the B2K school is similar to St. Thomas Church with which B2K shares a private drive. B2K has been oriented to maximize classroom views and is landscaped on the north and west property boundaries with Type I landscaping. The eastern perimeter of the site's development area is heavily forested and steeply sloped, with no development in the viewshed. The architecture of the B2K Early Learning Center has a building form and roofline similar to St. Thomas Church immediately west, but finished with different building materials and much brighter colors. As a school for very young kids, brighter colors than are typical are appropriate. Used as accent colors around the windows and in the rear of the school, the impact of the {W : brighter colors is subdued. Because surrounding development has limited views of the school due to distance, landscaping and grade changes, there is less pressure for harmonious blending of the architecture of the school with the neighborhood. Perimeter landscaping north and west of the site's development area is Type I landscaping, intended to provide a light visual separation between uses and zoning districts, screen parking areas, and allow views to building entryways and signage. The school's parking lot is landscaped with one planting island holding a tree, shrubs and groundcover spaced every ten parking spaces. The site's development area is curved on the eastern side of the building, following the curve of the top of the steep slope. There is no landscaping proposed for this edge, but existing trees and vegetation will remain. The landscaping proposed for the site's northern and western edge is consistent with the design review criteria above. The B2K parking lot landscaping is adequate, typical for new parking lots, and appropriate for the school setting and the neighborhood. The eastern edge of the development site will be unchanged from current conditions; existing vegetation will remain. The southern site perimeter shared with Showalter Middle School is unlandscaped, and there are no trees or shrubs between the parking lot, bus loop, perimeter screening on the north and west, and the school building. The absence of landscaping near the building is inconsistent with the natural environment and development characteristics of the neighborhood. St. Thomas Church has landscaped planters with a mix of evergreen trees, large bushes and flowers fronting the street, and trees and shrubs planted intermittently along most of the buildings' fapades. Foster High has trees along the street - facing fapades. Showalter has a few shorter, decorative trees around the southern edge and main entrance to the school. The building siting and architecture of B2K blends harmoniously the neighborhood pattern of development (church and single family residential) and existing natural resources (steep slopes). The context of the school setting could be better reinforced with landscaping adjacent to the western and southern school fapades. This is a recommended condition of Design Review approval. b. Natural features, which contribute to desirable neighborhood character, shall be preserved to the maximum extent possible. Natural features include, but are not limited to, existing significant trees and stands of trees, wetlands, streams, and significant topographic features. :: ster" The only natural features at the Foster High site are landscaping trees on the southern and western building fapades and larger trees and landscaping along S. 142nd St and S. 144th streets. Planning staff has observed that earlier this year, landscaping trees at Foster have been topped by the District maintenance staff. The topping of trees is prohibited in Tukwila; Planning staff 37 spoke with Liliana Cardenas, Director of Maintenance and Operations for the District on April 18, 2017 about tree trimming measures that preserve the health of trees. Staff recommends conditions of approval requiring the replacement of landscaping trees that have died or are in poor health due to improper trimming, and reiterating the prohibition of topping as an acceptable tree trimming method. With the recommended condition of approval, Foster High will meet this design review requirement. B2K" At B2K, there is native, natural vegetation on the panhandle portion of the parcel and forming the eastern edge of the developable area. The B2K site and landscaping plans show no changes or removal of this vegetation, and no changes to the steep slopes underneath the vegetation. The arborist report submitted includes the conditions, health, and species of trees along the western and northern property edges of the site. Most of these trees are in good health and of appropriate species for their location adjacent to a play yard for young children, and are planned for retention with project approval. City of Tukwila Urban Environmentalist Andrea Cummins recommends a few changes to the remove and retain recommendations; most notably the removal of all black locus trees. Black locus trees are moderately thorny when in good health, but when branches break, the suckered limbs produce larger thorns of 2 to 3 inches. Because the trees are located adjacent to a play yard for young children, they should be removed. The perimeter landscaping proposed is adequate; no additional replacement trees are required for the removal of all black locus trees in the development area. This criterion is met by the proposed design. c. The site plan shall use landscaping and building shapes to form an aesthetically pleasing and pedestrian scale streetscape. This shall include, but not be limited to facilitating pedestrian travel along the street, using architecture and landscaping to provide a desirable transition from streetscape to the building, and providing an integrated linkage from pedestrian and vehicular facilities to building entries. :: ster" The landscaping changes proposed for the Foster High campus generally meet or exceed the code requirements. In addition to the replacement of dead or dying trees along the school's western and southern facades, staff recommends extending landscaping trees (of the same species as existing along the activities wing's street frontage) along the proposed auxiliary gym building addition. With the extension of trees along the auxiliary gym frontage, this design criterion will be met. The extension of continuous, consistent landscaping will provide a desirable pedestrian -scale transition from S. 144th St. to the extended activities wing of Foster High. B2K" The Birth to Kindergarten Early Learning Center has no public street frontage, but the District will develop S. 142nd St. in front of the adjacent church to the school site entrance. South W .i of the sidewalk and east of 44th Ave S, the District will landscape a 15' deep perimeter of the Foster property with large and small trees, shrubs and groundcover. This landscaped perimeter will extend approximately halfway along the private drive, stopping where the sloped edge of the school property begins to steepen. East of this point to the campus entrance, there is no perimeter landscaping planned. As discussed in the discussion of criteria 1a above, Staff recommends the addition of tree and shrub landscaping on the west and southern building fapades. Appropriate landscaping close to the school will create an aesthetically pleasing pedestrian - scaled entry, meeting the design criterion. The most glaring impediment to an aesthetically pleasing campus entry and transition to the street is the location of the service area at the most visible location onsite. All visitors to B2K will see the service area first, as it is located on the far west side of the building closest to the entryway. Please see the discussion in 4.a., below for a more detailed analysis of the service yard location and treatment. d. Pedestrian and vehicular entries shall provide a high - quality visual focus using building siting, shapes and landscaping. Such a feature establishes a physical transition between the project and public areas, and establishes the initial sense of high quality development. :: pie r" The changes to the pedestrian entry at the southwest corner of the Foster site will continue the same visual focus and provide a smooth transition between the courtyard and the adjacent building wings. New pedestrian entries to the school additions are located at the junction of the STEAM addition and the standing brick fapade of the academic wing, directly east of that on the eastern side of the addition, north of the auxiliary gym, and external entrances with access only to the auxiliary gym are located on the southeast and northeast corners of the proposed gym. All of these pedestrian entries are scaled appropriately, and provide a smooth transition between the project and the street. Vehicular access is unchanged from existing, except for a slight realignment of the entry to the north parking area. This design requirement is met. B2KI' All visitors to the B2K campus will enter at the southwest corner of the parcel. With landscaping added to the southern and western school fapades, the pedestrian and vehicular entry to the site will provide a visual focus appropriate of a school. Below, John Owen suggests additional. minor changes to pedestrian areas. 7 h sidewalks and waiting areas for, both bus and auto drop -o and pi(,k up appear, to be too narrow for, safe and elik,ient rnove° rnen , e° spe6ally for, young (,hfi re° n, While not required, weather, pro e° (,fi n ior, parents, and students, waiting for, _up would be appropriate, , W 41 Planning staff suggested a covered area for students awaiting pickup early in the design process, along with a more prominent school entrance. In response, minor changes were made and elevations show a small roof overhang over the building entrance. Benches and a covered area near the dropoff zone would increase the quality and practicality of the pedestrian entry to B2K. e. Vehicular circulation design shall minimize driveway intersections with the street :: pie r" The parking areas at Foster will maintain the same access points as currently exist with the exception of a small realignment of the north parking area access slightly north to accommodate the STEAM addition. The criterion is met. B2K The location of the site at the end of a private drive with no other access point limits the school to just one driveway intersection with a street. The criterion is met. Site perimeter design (i.e., landscaping, structures, and horizontal width) shall be coordinated with site development to ensure a harmonious transition between adjacent projects. :: pie r" Staff recommends extending the line of landscaping trees adjacent to the activities wing to the eastern edge of the proposed auxiliary gym building addition. With the extension of trees along the auxiliary gym frontage, this design criterion will be met. B2K See comments 1.a, b and c, above. g. Varying degrees of privacy for the individual residents shall be provided, increasing from the public right -of way, to common areas, to individual residences. This can be accomplished through the use of symbolic and actual physical barriers to define the degrees of privacy appropriate to specific site area functions. 7hi s (,rile rion is for, inuiiifarniiy de velopinent in the l..L)R zone and is not appik able to the proposed developinents, h. Parking and service areas shall be located, designed and screened to interrupt and reduce the visual impact of large paved areas :: pie r" Parking and service areas at Foster will not be changed significantly with approval of the planned expansions. The eastern parking lot landscaping will largely remain as it is, and the reconfiguration and size reduction in the north parking area necessitates new landscaping treatments. These parking areas and the service area on the activities wing fapade have screening that adequately reduces the impact of large paved areas. This design review requirement is met. B2K B2K's parking area is landscaped in accordance with code requirements, which provides adequate screening of large paved areas. This design review requirement is met. .N 42 i. The height, bulk, footprint and scale of each building shall be in harmony with its site and adjacent long -term structures `:: «pie r" See the discussion of building scale and neighborhood compatibility in 1.a., above. The height, bulk and footprints of the additions are harmonious with the site and neighborhood. B2K1m See the discussion of building scale and neighborhood compatibility in 1.a., above. The height, bulk and footprints of B2K are harmonious with the site and neighborhood. 2. BUILDING DESIGN. a. Architectural style is not restricted; evaluation of a project shall be based on the quality of its design and its ability to harmonize building texture, shape, lines and mass with the surrounding neighborhood. `:: «pie r" Please see the discussion in 2.b, below. B2K1m Please see the discussion in 2.b., below. b. Buildings shall be of appropriate height, scale, and design /shape to be in harmony with those existing permanent neighboring developments that are consistent with, or envisioned in, the Comprehensive Plan. This will be especially important for perimeter structures. Adjacent structures that are not in conformance with the Comprehensive Plan should be considered to be transitional. The degree of architectural harmony required should be consistent with the nonconforming structure's anticipated permanence. `:: «pie r" As mentioned in the discussion of criterion 1.a., the architectural style and materials of the High School building expansion, a perimeter structure, are a clear departure from the style of Foster High as it stands today. The additions have different rooflines, modulation and height than the academic and activity wings, and use different building finishes than the current Foster High appearance. Below are suggestions means of achieving better harmony between new and existing portions of Foster High School, written by John Owen, AIA. 7he ar(, hiie(,iural (,orrpa ibility be° hAvee° n the existing building and the new additions is of prig ary irnk,orta x e , No e° x(,eption s are taken n to the in in entry area design, Measures inu sl. be taken n to in ke the proposed additions rnore (,orrpa ible , with the existing siru('iure by in('ork,ora inn sorne ele° rnent's or, proportions of the existing siru(,iure into the additions for, the l: 7f."�llll,� and l yrn addition � andlor, key vi��� all separating the existing and proposed buildings through a rnodukiti n (indent or, reveal) of the fa(,a le fa(,e , (,reafing a ve° rli(, l setba(* notch or, reveal, at, least, 5' vlid e and 3 dkeep between the existing and new building thus visually separating the hAlo siru(,iure° s, Additionally, or, 41 43 alternatively, the hAvo s , es , be visually unified by extending the existing buildings frieze line that is above the windows, 7he extended nde d Erie ze nee d not be of the rnasonry r aterials, or, (,olors as the existing, but it, should be of they sarne height, and wic"Ith as the existing to provide a horizontal building e lerne° nt, that links both the existing and new siru(,iure° s, 7iie frieze may be iennina e° d above the eastern —rnos door on they south fa(, de , 7iie prrpose c "l iigfit, (,olore c "l pAv itis(,ot, or, fic)tiricie tioti t ")arici at, iiie groe,irici pie rie is positive e';lerne° nt, and should be retained, d, s noted in i.e,, new trees of sirnil r ape (,ie° s and pa(,ing to the existing row of trees rne, st, be planted south of the new addition to extend end the ic' n4°'is(,ape (,h r e,ier to the east, in front, of the new addition, t:mr r the 1, 7lmme- M addition on the noritnAve° st, portion of the s(,hool, the transition Inay be a(,(,orplishe° d by an indented d re° ve al sirniie r try one de° s(,ribe° d for the gyrn faga ie , This rna require re (,onft guring the fire ee° uiptne° nt. roorn lightl , 1 %e°��e°�� also .e, below, Incorporation of these suggested architectural modifications will result in a more harmonious and coordinated appearance of the new and existing fapades of Foster High. With execution of the suggestions mentioned above, this design review criterion will be met. B2K1' As mentioned earlier, B2K's isolated location limits the necessity of a building design highly harmonious with adjacent development. Still, the flat rooflines and one and two -story building sections mirror the building forms of the adjacent church, even while utilizing different building finishes and brighter colors. The design requirement is met. c. Building components, such as windows, doors, eaves, parapets, stairs and decks shall be integrated into the overall building design. Particular emphasis shall be given to harmonious proportions of these components with those of adjacent developments. Building components and ancillary parts shall be consistent with the anticipated life of the structure. `:r ster: Many building components proposed for Foster High are harmonious in proportion and design to adjacent development, i.e. existing fapades of the school, and other aspects are a clear departure from the existing school design. The windows of the STEAM addition are of similar proportion and shape as windows on the brick academic wing fapade, and the base of the addition looks very similar if not identical to the lightly colored base on the brick building. Building components that are a departure from the current design of Foster High include flat rooflines, a modulated STEAM addition north wall, and the introduction of fiber cement panels as exterior building material. Below are comments from John Owen suggesting changes to building components of the additions. It, is e, n(,lear what purpose the flay inetal fr rne extending over, the .l..i.. roorn i„ n rr�y be that rerr oving or, re u,ing that lerrnt, would in ke the hAvo buildings rnore (,orrpa ible, or, at, least in ke the new addition less prornine° nt. 7he rnaterials, rnust, be vandal, gr t iti and weather, resistant, 42 .. Some components of the Foster High expansion are well integrated and are harmonious with the current building design, and others are not. With minor changes to the design of the additions, this criterion can be met. B2KIm Key building components at B2K include windows of differing sizes and shapes lined in brightly colored metal trim, cedar siding, exterior staircases, and grey and white fiber cement paneling. Based on the fast deterioration of wood siding in previous local applications, the cedar siding used on the classroom wings has been a concern of Planning staff. B2K's architect Amy Jain provided a local application of the cedar siding material. Constructed in 2010, the Educare Center in White Center has been finished in cedar siding. The concern about the durability and weather resistance of siding material was shared by John Owen, below. Be(,ause of the kmk of roof overhangs providing vleatherprote° (,fi n and the her , unarli(,ulate° d fa(, de fa(,e° s, it is (,riti(,al that the building shell in terials, and details, be se le (,te° d and designed d to provide durability, f:- Iashings, building edges, and f�?ne° strafion elerrients, rnu st, be of high quality to ensure sure Long t erin weather, r, re sist°an(,e. While no detailed information on the cedar siding's weather resistance was submitted, the applicant submitted Attachment O showing material and design details for B2K's windows, which appear to be made of durable materials. Staff recommends a material sample and specifications for proposed cedar siding be included in the building permit submittal for administrative design review. d. The overall color scheme shall work to reduce building prominence and shall blend in with the natural environment. 43 45 :: ster" The overall color scheme of the building additions closely matches the blue, rust, and cream - colored bricks in the most prominent fapades of Foster High. Consulting architect John Owen suggests the blue color of the fiber cement panels planned for the auxillary gym addition may be too bright in large quantities. This design review criterion is met. B2K1' The bright, playful color scheme of B2K is appropriate to the young age of children served, and the wood paneling and white fiber cement panels create a neutral color palette from which the bright accent colors can pop visually. The two -story design and use of neutral - colored materials with natural wood paneling help ensure this criterion is met. e. Monotony of design in single or multiple building projects shall be avoided. Variety of detail, form, and siting shall be used to provide visual interest. Otherwise monotonous flat walls and uniform vertical planes of individual buildings shall be broken up with building modulation, stairs, decks, railings, and focal entries. Multiple building developments shall use siting and additional architectural variety to avoid inappropriate repetition of building designs and appearance to surrounding properties. :: ster" Minor changes to architectural features suggested in 2.b., if implemented, will increase visual interest while increasing compatibility of the new portions of Foster High with the old. Extending the frieze pattern or form onto the auxillary gym, strategically adding building reveals, and the extension of landscape treatment unifying new and old portions of the school will increase the design's adherence to this design requirement. B2K1' The mixed composition of one and two -story building sections along with playful exterior stair design in the learning courtyard and mixed window shapes throughout the school ensure that the requirement of modulation and architectural variety are met by the project. The addition of landscaping trees or shrubs along the southern fapade of the school will break up the long mass of the one -story portion of the building. 3. LANDSCAPING AND SITE TREATMENT. a. Existing natural topographic patterns and significant vegetation shall be reflected in project design when they contribute to the natural beauty of the area or are important to defining neighborhood identity or a sense of place. :: ster" The Foster campus does not have significant natural features to incorporate into project designs. This requirement is met. B2K1' The B2K school proposal respects the existing natural features of the site- steep slopes and vegetation — by leaving the area of the parcel east of the development area in its natural state, with no landscape or topography changes proposed. This criterion is met. .. M. b Landscape treatment shall enhance existing natural and architectural features, help separate public from private spaces, strengthen vistas and important views, provide shade to moderate the effects of large paved areas, and break up visual mass. :: ster" The landscaping changes proposed at Foster are kept to beside the building additions, within reconfigured parking areas, around reconfigured sports fields, and re- landscaping the perimeter of the property along S. 142nd St. Around the perimeter of the school additions, the landscaping consists of shore pine, black tupelo, vine maple, and serviceberry trees along the STEAM addition, and Princeton sentry ginko adjacent to the eastern fapade of the auxiliary gym and in front of the main pedestrian entrance. These building perimeter landscaped areas are diverse in species and incorporate most of the shrubs and grasses used onsite in beds of creeping Oregon grape and salal groundcovers. Type 1 perimeter landscaping screening is required of all nonresidential uses in the LDR zone. The western perimeter on the northwest corner of the site will be landscaped with shore pine trees. Existing mature trees along the southern edge of S. 142nd St. will be removed and replaced with new trees, shrubs and groundcover meeting the spacing and diversity of species requirements of Ordinance 2523, passed by City Council on March 6, 2017. The school boundary along S. 142nd will be landscaped with greenspire linden, shore pine and western red cedar trees, providing a context - appropriate transition between the softball and northern tennis courts and single - family houses on the other side of the street. Along S. 144th Street, the school perimeter has mature landscaping that will stay. There is no landscaping near the street on 42nd Ave S, though both the academic and activity wings have trees planted in a line a few feet from the brick fapade. These trees have been topped recently; a practice prohibited by the City's Municipal Code. Tukwila Municipal Code 18.52.030 Perimeter and Parking Lot Landscaping Requirements by Zone allows the front yard landscape with may be divided into a perimeter strip and a landscape area between the building and the property line, if the landscape strip is a minimum of 10 feet and the landscape materials are sufficient to provide landscaping along the perimeter and screening of the building mass. 42nd Ave S. is the site's front yard, and there is no landscaping in the planting strip between the bus loop and the street. To meet code requirements, increase shade, break up the visual mass of the school, and provide a more pleasant environment for pedestrians, Staff recommends landscaping the strip between the bus loop and 42nd Ave S. with species and spacing similar to the strip between the service loop and S. 144th Street. Type I perimeter landscaping proposed for the property's northern boundary appropriately shields adjacent single family development from possible visual, light and noise impacts stemming from use of the site as a high school. The large paved areas (parking lots) are appropriately screened with interior and perimeter landscaping. This criterion is met. 45 EYA B2K1' As mentioned throughout this report, the visual mass of the B2K building can be softened by the addition of landscaping adjacent to the southern and western school fapades. The front, single -story fapade of B2K measures 304' horizontally, with only a recessed entry as modulation. Landscaping adjacent to the fapade will break up this long visual mass. b. Walkways, parking spaces, terraces, and other paved areas shall promote safety and provide an inviting and stable appearance. Direct pedestrian linkages to the public street, to on -site recreation areas, and to adjacent public recreation areas shall be provided. F" Oster", The existing strong and direct pedestrian linkage from the intersection of 42nd Ave S. and S. 144th streets will remain with the proposed development; perhaps even strengthened by the changes planned to the school's main entrance. Other paths from parking areas and public streets to the school and sports facilities are made of concrete and should provide access for people with disabilities affecting mobility. The reconfigured northern parking lot, front parking lot, and a small northwest corner of the east parking lot show landscaped islands spaced at a minimum of every 10 parking spaces, each planted with a red oak tree and a mix of mount Vernon English laurel and birchleaf spiria shrubs, and groundcover of salal, cascade Oregon grape, and kinnikinnick groundcover. The landscaping proposed in larger paved areas (parking areas) meets or exceeds Code requirements. This design requirement is met. B2K1' Pedestrians entering the site will have to cross two vehicular driveways to access the school's entrance. Walking eastward, pedestrians will have to cross in front of vehicular traffic making a softened right turn, then turn north, crossing the travel lane of cars exiting the school site. In earlier site plan iterations, there was a pedestrian path from the school's front doors directly south to Showalter. That linkage has been eliminated due to security concerns stemming from the very young ages of students at B2K; the District preferring to keep vehicular and pedestrian traffic from crossing the site boundary between Showalter and B2K. Though the routing is far from ideal, there is a clear path for pedestrians to follow, and with adequate traffic management at pickup and dropoff times as suggested in the discussion of the Conditional Use Permit application, pedestrian /vehicular interaction can be minimized. This criterion is met. d. Appropriate landscape transition to adjoining properties shall be provided. :: B2K" The Type I landscaping planned for the western and northern parcel edges will be appropriate for the adjacent church and residential developments. The criterion is met. 4. MISCELLANEOUS STRUCTURES a. Miscellaneous structures shall be designed as an integral part of the architectural concept and landscape. Materials shall be compatible with buildings, scale shall be appropriate, colors shall be in harmony with buildings and surroundings, and structure proportions shall be to scale. :: ster" Miscellaneous structures proposed for Foster include fencing and netting around sports facilities, bike racks at the school entrance, retaining walls, and parking and pedestrian light poles. The City of Tukwila has recently employed a bike rack program that incorporates placemaking with an orange color scheme and City branding incorporated into the rack design. A contact for this program is included in this report, should the applicant want to explore other bike rack designs. Sample materials for fencing and netting were not submitted. A simple bike rack design was included on plans. Retaining walls planned range in height from 1.5' to 8.5' in height. Pedestrian and parking lighting will match existing. The miscellaneous structures identified on the site plan indicate probable project conformance with this design criterion. Because sample materials for fencing and netting were not submitted, Staff recommends administrative design review approval of miscellaneous structure materials submitted at the building permit stage. B2K" Miscellaneous structures at B2K include a service area, exterior staircases, play equipment and their coverings, varied surface treatments for play areas, a bike rack at the entry plaza, playground and site perimeter fencing, and pedestrian and parking lot lighting features. Sample materials for play equipment and their coverings, play yard surface treatments, and fencing were not submitted; the degree of integration of miscellaneous structures into the design is unknown. Entering the site, the service area is the portion of B2K that visitors see first. Staff raised the concern of the service area location at the biweekly coordination meetings; District consulting staff replied that due to the small developable area of the site, relocation to a different part of the building was not practical. Below are comments made by John Owen on the placement and appearance of the service area. 7he ser,vi(,e area is inappropriately lo(,a ed at the rno t, visible (,orner of the site, 7hi s k,roblern inn t, be addressed by either, lo(,a inn the area at, a di ierent, (,or ner of the building or, by walling off the ser i(,e area with a wall sirnilar, to the buildings, first floor, and rn king it appear, to be an integral part of the building, .l he wall inn t full en (,lose th e ser,vi(,e 47 .• area arici k ")e as iiigii as iiie iir,oi. t,ory of the building, 7he exterior, doors (gates) inn t, be opaque and of high quality, ")ubinii, details, of the wall and doors, Additionally, the se r,vi(,e area irripe° des pedestrian rr overne° nt, to a portion of the s(,hool bus drop -o and pi(,k -up area, Address this (,e n(,ern, The design of the service area was further explained in correspondence from the applicant on June 2nd. The service area will be fully enclosed, but constructed of two different assemblies. On the south and half of the west side, the service area will be enclosed with a 15 -ft. tall opaque wall matching the one -story building portion, in order to appear as part of the school building. On the rear half of the west side and the north side, the enclosure will consist of an 8 -ft. tall chain link fence with vinyl slats. Should it be infeasible to relocate the service area, staff recommends better integration of the service area with the B2K single story structure, using John Owen's recommendations, above. As sample materials for most of the miscellaneous structures planned were not submitted with this design review application, Staff recommends administrative design review approval of materials submitted at the building permit stage including doors to the service area, play equipment and their coverings, play area surface treatments, and fencing. b. The use of walls, fencing, planting, berms, or combinations of these shall accomplish screening of service yards and other places that tend to be unsightly. Screening shall be effective in winter and summer. :: :: ster" Exterior lighting proposed for Foster High includes pedestrian and parking -scale fixtures. Luminaire contour lines and photometric analysis of existing conditions shown on lighting plans indicate the requirement of little offsite spillover will be met with the proposed design. Additionally, lighting levels of 2 or more footcandles will be required at all building entries as a condition of building permit approval. B2KI' Exterior lighting proposed for B2K includes pedestrian and parking -scale fixtures. Luminaire contour lines on lighting plans indicate this requirement can be met with the proposed design. Additionally, lighting levels of 2 or more footcandles will be required at all building entries and along pedestrian areas as a condition of building permit approval. Conclusions Site Planning: The siting and layout of the changes to the Foster campus meet design review requirements. Changes to vehicular and pedestrian entries are minor, and minor landscaping changes can improve the campus environment and increase its integration within the Foster and Thorndyke neighborhoods. The entry to the school meets the criteria for integration with the neighborhood building scale, natural environment, and development characteristics. Minor changes to the architecture of the STEAM and auxiliary gym building additions and adjacent landscaping as suggested will ensure compatibility of the project with the existing school fapades and the neighborhood. 2. Building Design: With the exception of changes to the main school entry and the color scheme, the proposed building additions are not complementary to existing school and residential developments. The form and building materials used for the building additions are significantly different than the form and materials used on the existing school fapades. With minor changes to the fapades of the school additions, the Foster High project can meet design review criteria for building design. 3. Landscaping and Site Treatment: Tukwila Municipal Code 18.70.090 Nonconforming Landscape Areas requires all projects undergoing Design Review to comply with current landscaping requirements. Proposed perimeter landscaping meets or exceeds Code requirements, provided Type I landscaping is extended along 42nd Ave S. between the street and the bus loop as recommended. Landscaping throughout parking areas and adjacent to the existing and proposed Foster High buildings adequately breaks up the massing of large parked areas and tall buildings. Trees along the Foster High School building perimeter have been trimmed inappropriately leading to a decline in tree health and quality of landscaping. Staff recommends that tree trimming practices change in the future for all District sites, and the replacement of existing trees that are in poor health due to improper tree topping. EN 51 4. Miscellaneous Structures: Samples of fencing and netting materials were not submitted with the Design Review application. Staff recommends administrative design review of miscellaneous structure materials proposed for Foster including fencing netting, and benches or other structures added to the site design after the BAR determination. Birth to Kin(Yergarten 1. Site Planning: The B2K site is located at the end of a private driveway with no public street frontage, creating access and circulation limitations while reducing the likelihood of visual and other impacts of the school to surrounding development. The site plan preserves the natural features of steep slopes and vegetation east of the development pad. Minor additions to landscaping and better integration of the service area into the school building will increase the compatibility of the project with the neighborhood. Weather protection and seating for pickup and drop -off activities would improve the functionality of the site and enhance the pedestrian entry. 2. Building Design: The combination of one and two -story building forms and flat rooflines are similar to the building form and rooflines of St Thomas Church, immediately west. Brighter colors area used as accent colors, and are appropriate for the use as a school for very young children. 3. Landscaping and Site Treatment: The site design respects the steep slopes and vegetated areas on the eastern portion of the site, which will be unchanged with project approval. There is a clear pedestrian path from the street to the school; additional landscaping will soften the visual mass of the school building and soften the transition from the access driveway to the school. Minor changes to the retention and removal of existing trees along the western and northern perimeters will ensure safe play spaces for children and integrate existing natural features with the proposed landscaping perimeter treatments. 4. Miscellaneous Structures: Mechanical equipment will be appropriately screened on the rooftop; exterior lighting is adequate and appropriate. Staff recommends administrative design review approval via the building permit process for miscellaneous structure materials (fencing, staircase materials, play equipment, etc.) not submitted with this design review application. 50 52 Recommendation Staff recommends adoption of the above findings and conclusions and design review approval for the Foster High and B2K project proposals with the following conditions: Ilf,,,, °c e r 1. Trees along the school building that are in poor health or dying shall be replaced, creating uniform, even spacing of trees along the school's western and southern fapades. The topping of trees is prohibited; "limbing up" and branch thinning are allowable means of tree trimming. 2. Extend the row of trees on the south wing of the building facing 144th St to the east in front of the new gym, creating a uniform line of landscaping along S. 144th street and visually integrating the gym addition with the existing activities wing. This will involve installing 2 -3 trees of 1 -1/2" to 2" caliper and the same species as existing. 3. To increase the visual compatibility and continuity of the building additions with the existing school fapades, incorporate the following architectural elements into revised elevations and plans: A. For the STEAM addition incorporate a reveal or indentation at least 5' wide and 3' deep at the point where the STEAM addition connects to the academic wing. B. It is not clear what the gray metal frame extending over the STEAM rooms accomplishes. Consider removing or reducing that element to make the two buildings more compatible, or at least make the new addition less prominent. C. For the south fapade facing 144th St., create a vertical setback notch or reveal, at least 5' wide and 3' deep between the existing and new building thus visually separating the two structures. D. Extend the frieze pattern on the existing southern fapade to the auxillary gym building. The extended frieze should be the same height and width of the existing brick frieze to continue the horizontal line, but does not need to be the same colors, pattern or materials as the brick frieze. The extended frieze may be terminated at the external door on the southeast corner of the gym. 4. Landscape the planting strip between the bus loop and 42nd Ave S. with tree species and spacing similar to the planting strip between the service loop and S. 144th Street. 5. A complete set of materials were not submitted as part of the design review application. The submitted samples of the colored concrete panel are paper. A sample of the actual finish material must be submitted, along with product information describing its durability as part of the building permit submittal. The materials must be vandal, graffiti and weather resistant. Additionally, the rust colored material shall be compatible with the existing brick that is used on the existing building. The blue sample may be too bright in large quantities. Applicant shall provide the address of a site that can be visited to assess its use or photos of the blue used in a similar manner on another project. Final materials shall be approved administratively by the Director as part of the building permit approval. 51 53 III;;;, III Landscape the western and southern building fapades, softening the visual impact of the building's massing and creating a natural transition from the site's access point to the school. This landscaping shall include a mix of tree sizes as specified in the landscaping code. 2. Execute the retain and remove recommendations described in the Tree Inventory and Disposition for B2K Project, with the following changes: A. Remove all black locus trees in the developable area of the site. B. Retain tree #16 only if the ivy and blackberry vines can be removed without harming the tree. You may remove the tree if removal of the invasive vines below it is impractical. 3. Provide seating where students can wait for pickup by parents, protected from rain. Benches and a covered area near the dropoff zone will increase the quality and practicality of the entry to the school. 4. Provide a covered area and seating between the bus zone and the school building. Show where students can wait to load a bus, protected from weather. Ensure an adequate clearance between where students can wait for the bus and the service area. 5. Submit specifications and a material sample of the proposed cedar siding alongside your building permit application. The durability and weather resistance of the material will be administratively reviewed for conformance to design review requirements. 6. The service area is inappropriately located at the most visible corner of the site. Either locate the area at a different corner of the building or extend the 15' wall around all three sides of the service area with a material similar to the building's first floor and making it appear to be an integral part of the building. The exterior doors (gates) must be opaque and of high quality. 7. Submit material samples of window flashing detail, play equipment, fencing materials, play equipment, doors to the service area, and benches proposed at B2K alongside building permit submittal. The quality and appearance of these materials will be reviewed administratively against the applicable design guidelines. 52 54 V 1NDAHOV1IV 01 01 King County The information included on this map has been compiled by King County staff from a variety of sources and is subject to change without notice. King County makes no representations or warranties, express or implied, as to accuracy, completeness, timeliness, or rights to the use of such information. This document is not intended for use as a survey product. King County shall not be Gable for any general, special, indirect, incidental, or consequential damages including, but not limited to, lost revenues or lost profits resulting from the use or misuse of the informaton contained on this map. Any sale of this map orinformation on this map is prohbited except by written permission of King County. Date: 3/21/2017 King County GIS CENTER Cr a) 91NDINHOV11V FOSTER HIGH SCHOOL MODERNIZATION & ADDITIONS A PORTION OF THE SW 1/4 OF THE SE 1/4 OF SEC. 15, TWN. 23 N., RGE. 04 E. W.M. CITY OF TUKWILA, KING COUNTY, WASHINGTON. 8 10S0' SECOND FRONT SETBACK LINE. START/END WALL START/END WALL START/END WALL START/END WALL I \ 24.0' fL R N S A ES SOFTBALL FIELD NATURAL TURF BASEBALL FIELD CLASSROOM ADDITION START/END WALL UTILITIES/SERVICES WATER KING CO WATER DIST 125 SEWER: VALLEY VIEW SEWER STORM DRAINAGE CITY OF TUKWILA POWER, PUGET SOUND ENERGY GAS: PUGET SOUND ENERGY TELEPHONE CENTURYLINK CABLE TV COMCAST SITE STATISTICS ZONING LDR WITH PRO IN AREAS ADJACENT ZONING, LDR TO NORTH, EAST, SOUTH, MDR, LDR TO THE WEST SETBACKS FRONT 20 FT 2ND FRONT 10 FT REAR 10FT ZONING HT LIMIT 30 FT SITE ADDRESS 4242S 144 ST TUKWILA.98168 PARCEL ' 152304-9108 PARKING COUNT 150 STANDARD PARKING SPACES 3 ADA STALLS 17 VISITOR SPACES 4 ADA VISITOR STALLS 174 TOTAL IMPERVIOUS AREA WEST OF STADIUM EXISTING IMPERVIOUS=337,170 SF, 64% PROPOSED IMPERVIOUS=330,110 SF, 63% NOTE PROPOSED BASEBALL AND SOFTBALL RELDS WILL CONTAIN A 10' CHAINLINK FENCE WITH 20 MESH AROUND THEIR PERIMETER. FRONT SETBACK LINE. PROPOSED/C.A140PY EDGE SIGN 1 / —1 /* ENCLOSED COMMONS HATCHING INDICATES BUILDING ADDITION, TYP. PROPOSED FOSTER HIGH SCHOOL EXISTING SIZE 122730 SF PROPOSED SIZE 174264 SF 2:ADA 2 1 ENTRY PLAZA EXPANSION 61,164 SF STANDARD SEAT VVALL REMOVE PORTABLES/DEMO IT AND TRANSPORTATION BLDG: -9630 SF VISITOR SPACES GYM ADDITION 3171- SPACES 1 ADA STALLM 1 1111 1111"... 11111 3 STANDARD PARKING FLAG POLE SUPE'17Ig1P9MIII:C;(1):1-grEORI‘I I' 9 PRIMARY LOADING AREA 4 VISITOR PARKING SPACES START/END WALL 30 PARKING SPACES • , _28 PARKING SPACES 0 28 PARKING SPACES ADA 2 2•• 22— • STANDARD ,• VISITOR „ MONUMENT SIG6h— 4 VISITOR TO REMALNI2 EX'S-nNP-22, .214: " 10' 5 VISITOR PARKING 50 "I`, SPACES Know what's below. Call before you dig. EXISTING MONUMENT SIGN TO REMAIN 14- PARKING SPACES SECOND FRONT SETBACK LLNE. GRAPHIC SCALE 0 20 40 80 1" 40 FEET LEGEND: EXISTING BUILDING PROPOSED BUILDING PROPERTY LINE LANDSCAPE SETBACK FIRE ACCESS LANE PROPOSED FENCE PROPOSED RETAINING WALL PROPOSED ASPHALT PROPOSED CONCRETE 6 V I ' d VICINITY MAP NOT TO SCALE ARCHITECT CIVIL ENGINEER LANDSCAPE ARCHITECT BLRB ARCHITECTS 1250 PACIFIC AVE 700 TACOMA, WA 98402 PHONE 253 627-5599 CONTACT JOHN WEGENER, AIA, LEED AP EMAIL r r , AHBL INC. 2215 NORTH 30TH STREET, SUITE 300 TACOMA. WA 98403 PHONE 253 383-2422 CONTACT DOREEN GAVIN, PRINCIPAL EMAIL d WEISMAN DESIGN GROUP 2329 EAST MADISON STREET SEATTLE, WA 98112 PHONE 206 322-1799 CONTACT ANDY RASMUSSEN EMAIL d , d 0 0 422 TACOMA • SEATTLE • SPOKANE • TRI-CITIES 2215 North 30th Street Suite 300, Tacoma, WA 98403 253.383.2422 TEL 253383.2572 FAX www.ahbl.com WEB Pr °Pact Title: FOSTER HIGH SCHOOL MODERNIZATION & ADDITION Client TUKWILA SCHOOL DISTRICT NO. 406 DR. JUDITH BERRY, DEPUTY SUPERINTENDENT 4640 S. 144th ST TUKWILA, WA 98168 (206) 901-8006 Job No. 2160226.10 Nsue Set a Date: CUP DESIGN REVIEW 6/7/2017 NOME 7P4re=17 0.410rt NES IINGE ratil PEZEM 01101411,911. n. MS MUM 4 KR Me 'IL MD. 7.1 PPLU17 07 PA MT 0.01 Mtn A A A MAY 01. 2017 Revisions: Sheet Title: CUP SITE PLAN Designed be: Drawn by: Checked bv: Sheet No C1.01 of 1 Sheets 01 03 J A B C D E F G H I r/Z AB LEARNING STUDIO LEARNING STUDIO LEARNING LEAR STUDIO IEST.I 4 aa ac AD aF PLAN LEGEND NO WORK THIS AREA EkISTING SCIENCE STUD O1ST FLOOR REFERENCE PLAN a A SCALE: 364" _ 1' -0 r DESIGN DRAWINGS - NOT FOR CONSTRUCTION: THE BUILDING IMAGES SHOWN ARE DESIGN REPRESENTATIONS ONLY. THESE DESIGN IMAGES MAY NOT REFLECT ULTIMATE VARIATIONS IN COLOR, SHADE, TINT, HUE, AMBIENT OR ARTIFICIAL LIGHT INTENSITY, MATERIALS/ TEXTURE, CONTRAST, DESIGN CHANGES REQUIRED BY THE AHd, BUILDING CODES, OR OWNERS. r BUILDING KEY L CUPLDESIGN RECIEW FOSTER HIGH SCHOOL - MODERNIZATION & ADDITION TUKWILA SCHOOL DISTRICT NO. 406 TACOMA 11%-" PaA' fre, 01x111 Drawing Title FIRST FLOOR REFERENCE PLAN °ae FEB. 28, 2017 Revisea{1NJ \Y T, LU 1 ! JUNE 7, 2017 Drover Comm. No 16.08 eet A2.10 BLRB ARCHITECTS, P. S. 16.08_A2.10 1ST FLR PLAN 24X36. dwg a) O J A B C D E F G H IIIIIIIII■IIIIIIIIIII 11111111= 1111111111 PLAN LEGEND NO WORK THIS AREA 0 2ND FLOOR REFEREN�CE, �PLAN �0 A SCALE: 3/64" = 1' —O" d 8 "6' a r DESIGN DRAWINGS - NOT FOR CONSTRUCTION: THE BUILDING IMAGES SHOWN ARE DESIGN REPRESENTATIONS ONLY. THESE DESIGN IMAGES MAY NOT REFLECT ULTIMATE VARIATIONS IN COLOR, SHADE, TINT, HUE, AMBIENT OR ARTIFICIAL LIGHT INTENSITY, MATERIALS/ TEXTURE, CONTRAST, DESIGN CHANGES REQUIRED BY THE AHJ, BUILDING CODES, OR OWNERS. BUILDING KEY 1 J CUP RESUBMITTAL FOSTER HIGH SCHOOL - MODERNIZATION & ADDITION TUKWILA SCHOOL DISTRICT NO. 406 BLRB Drawing Title SECOND FLOOR REFERENCE PLAN °ae FEB. 28, 2017 Re °lsed MAY 1, 2017 Drover Comm. No 16.08 Sheet A2.20 CO NLRB ARCHITECTS, P.S. 16,06_A2.20 2ND FIR PLAN 24236.de a) N J A B ACTIVITY WING S. 144TH STREET LOOKING WEST G SCALE: NONE D E OACADEMIC WING ENTRY PLAZA CORNER OF S. 144TH ST. S. 42ND AVE. SERVICE DELIVERY BAY S. 144TH STREET SCALE NONE O SCALE: NONE - ®COURTYARD ACTIVITY WING LOOKING EAST S. 144TH ST. SCALE: NONE F G H ONORTH ELEVATION OF ACADEMIC WING 5 SCALE: NONE OPERFORMING ARTS CENTER - LOOKING WEST COURTYARD 6 SCALE: NONE N„.1,/ S. ELEVATION ACADEMIC WING LOOKING WEST ® LOOKING NORTHEAST CENTRAL COURTYARD O ENTRANCE TO ACADEMIC WING LOOOKING NW 0 ACADEMIC WING LOOOKING EAST FROM S. 42ND AVE. SCALE: NONE SCALE: NONE SCALE: NONE SCALE: NONE CUPLDESIGN RECIEW FOSTER HIGH SCHOOL - MODERNIZATION & ADDITION TUKWILA SCHOOL DISTRICT NO. 406 B LR B D 1 BEND 6a1•d11 Won UM Sf.1111611 Drawing Title. PHOTOS OF EXISTING BUILDING AND SITE e FEB. 28, 2017 m sed Drover Comm. No 16.08 Sheet A3.00 CO RLRB ARCHITECTS, P.S. 16.08_A3.00 24x36.dwg a) C 7 H 2 7 ENTRY PLAZA CORNER OF S. 144TH ST. S. 42ND AVE. SCALE NONE AUXILIARY GYM ADDITION — LOOKING WEST t) SCALE NONE n NORTH ELEVATION OF ACADEMIC WING STEAM ADDITION SCALE NONE UNORTH ELEVATION OF ACADEMIC WING STEAM ADDITION SCALE NONE 8 CUP RESUBMITTAL FOSTER HIGH SCHOOL — MODERNIZATION & ADDITION TUKWILA SCHOOL DISTRICT NO 406 BLRB TACOMA Crikoklit i1 ZIMNIO MJNISesm BEND 11111/ OWN SOON 111 LIMNS r win=g RENDERINGS OF PROPOSED BUILDING DOie FEB. 28, 2017 Ne415P� MAY 1, 2017 Drown Comm. No 16.08 Shoe: No. A3.14 BLRB ARCHITECTS, P.S. 16.08_A3.15 24x36. dwg a) a) A 6 6 CEMENT FIBER PANEL TYPE D METAL PANEL TYPE A METAL PANEL TYPE Cl CEMENT FIBER PANEL TYPE B n NORTH ELEVATION �f SCALE: 1/16° - 1' -0° METAL PANEL TYPE A METAL PANEL C1 STEEL FRAMED SUNSHADING FINISH E 2 8 CEMENT FIBER PANEL TYPE D METAL PANEL TYPE A EXISTING ARTS WING ............................. METAL PANEL TYPE C2 EXISTING BEYOND STOREFRONT F 7 PRECAST CONCRETE EXISTING O I8 116' EXISTING PERFORMING ARTS WING METAL PANEL TYPE A STOREFRONT F CEMENT FIBER PANEL TYPE B CEMENT FIBER PANEL TYPE 0 nSOUTH ELEVATION SCALE: 1/16- - 6-0" METAL PANEL TYPE C1 STOREFRONT F METAL PANEL TYPE A 7 31'-0" T.O. PARAPET PROPOSED C O 16' METAL PANEL 01 STOREFRONT F METAL PANEL TYPE A EXISTING PERFORMING ARTS WING CEMENT FIBER PANEL TYPE D PRECAST CONCRETE METAL PANEL TYPE C2 31' -0° T.O. PARAPET 8 DESIGN DRAWINGS - NOT FOR CONSTRUCTION: 1 THE BUILDING IMAGES SHOWN ARE DESIGN REPRESENTATIONS ONLY. 1 THESE DESIGN IMAGES MAY NOT REFLECT ULTIMATE VARIATIONS IN ICOLOR, SHADE, TINT, HUE, AMBIENT OR ARTIFICIAL LIGHT INTENSITY, I MATERIALS / TEXTURE, CONTRAST, DESIGN CHANGES REQUIRED BY THE AHJ, BUILDING CODES, OR OWNERS. r NOTE: 1 I SEE SHEETS, A3.12 AND A3.13 FOR ENLARGED I LELEVATIONS METAL PANEL TYPE C1 31' -0° di T.O. PARAPET !STING METAL PANEL — TYPE A CEMENT FIBER PANEL TYPE D METAL PANEL TYPE C2 n EAST ELEVATION SCALE: 1/16° - 1' -0° O 16' EXISTING PERFORMING ARTS WING METAL PANEL TYPE 01 METAL PANEL TYPE C1 STEEL FRAMED SUNSHADING FINISH E STOREFRONT F PRECAST CONCRETE G METAL PANEL TYPEA 49/&-. 0.1ST FLR 14' -0• T.O. SECOND FLOOR / T.O. FIRST FLOOR n WEST ELEVATION SCALE: 1/16" - 1' -0° O 16' 0' 0" .0. 1ST FLR 1 MATERIALS LEGEND A METAL PANEL 'A' AEP SPAN, FLUSH PANEL, COOL ZINC GREY O CEMENT FIBER PANEL 'B' B NICHIHA, ED680 -CUS , DOWN POUR QMETAL PANEL 'C1' AEP SPAN, FLUSH PANEL, COOL METALLIC SILVER cMETAL PANEL 'C2' AEP SPAN, CORRUGATED PANEL, COOL METALLIC SILVER CEMENT FIBER PANEL D NICHIHA, EDA151, CRIMSON PLYMOUTH BRICK OPAINT AT SUNSHADE /MAIN ENTRY STOREFRONT SHERWIN - WILLIAMS, SW7004, SNOWBOUND OSTOREFRONT WINDOWS / DOORS EFCO, SERIES 403, CLEAR ANODIZED O PRECAST CONCRETE L CUP RESUBMITTAL FOSTER HIGH SCHOOL — MODERNIZATION & ADDITION TUKWILA SCHOOL DISTRICT NO. 406 B RB TACOMA vv EKENA M ITS aorta Drawin=g Title OVERALL EXTERIOR ELEVATIONS Date FEB. 28, 2017 e41 ed MAY 1, 2017 Stamp Drawn Cornet. 00. 16.08 Sheet No. A3.11 -- � ©BLRB ARCHITECTS, P. S. I6.08_A311 24 x36. dwg a) a) EXISITNG 41' -0" T.O. RIDGE METAL PANEL TYPE 01 METAL PANEL TYPE A 2 EXISITNG 41' -0" T.O. RIDGE 15' -0' . SUNSHSADE PAINT METAL PANEL STOREFRONT TYPE 01 FINISH E 29' -0" 6 D METAL PANEL N z TYPEA O�� CEMENT FIBER PANEL CL TYPE D METAL PANEL TYPE C2 7 METAL PANEL TYPE C1 8 EXISTING 41' -0" • T.O. RIDGE MAIN ENTRANCE ELEVATION 1 SCALE 1/8" — 1' -0" 31' -0" EXISITNG 37' -0" T.O. BARREL VAULT CLASSROOM WING ELEVATION — WEST �JSCALE 1/8" — 1' -0" PRECAST CONCRETE G METAL PANEL TYPE C2 14' -0° T.O. 2ND FLOOR EXISTING METAL PANEL TYPE A CEMENT FIBER PANEL TYPE D CLASSROOM WING ELEVATION — NORTH SCALE METAL PANEL TYPE B 31' -0° 0 4' 8' 31' -0" T.O. PARAPET 0' -0" T.O. FIRST FLOOR METAL PANEL TYPEA CEMENT FIBER PANEL TYPE 0 SCIENCE STUDIO /CTE ELEVATION — EAST SCALE 1/8" = 1' -0" SCIENCE STUDIO /CTE ELEVATION — EAST 5 SCALE 1/8° — 1' -0" EXISTING 37' -0" T.O. BARREL VAULT 31' -0" T.O. PARAPET 14' -0" • T.O. SECOND FLOOR 0' -0" di T.O. FIRST FLOOR DESIGN DRAWINGS - NOT FOR CONSTRUCTION: THE BUILDING IMAGES SHOWN ARE DESIGN REPRESENTATIONS ONLY. THESE DESIGN IMAGES MAY NOT REFLECT ULTIMATE VARIATIONS IN COLOR, SHADE, TINT, HUE, AMBIENT OR ARTIFICIAL LIGHT INTENSITY, MATERIALS/ TEXTURE, CONTRAST, DESIGN CHANGES REQUIRED BY THE AHJ, BUILDING CODES, OR OWNERS. MATERIALS LEGEND A METAL PANEL 'A' AEP SPAN, FLUSH PANEL, COOL ZINC GREY CEMENT FIBER PANEL' B' NICHIHA, E0680 -005, DOWN POUR Ct METAL PANEL01' AEP SPAN, FLUSH PANEL, COOL METALLIC SILVER METAL PANEL' C2' AEP SPAN, CORRUGATED PANEL, COOL METALLIC SILVER CEMENT FIBER PANEL' D' NICHIHA, EDA151, CRIMSON PLYMOUTH BRICK OPAINT AT SUNSHADE /MAIN ENTRY STOREFRONT SHERWIN- WILLIAMS, 507004, SNOWBOUND OSTOREFRONT WINDOWS / DOORS EFCO, SERIES 403, CLEAR ANODIZED O PRECAST CONCRETE CUP RESUBMITTAL 1 FOSTER HIGH SCHOOL — MODERNIZATION & ADDITION TUKWILA SCHOOL DISTRICT NO. 406 B LR . $ TACOMA Pko k:,E FH Drawin=g Title ENLARGED EXTERIOR ELEVATIONS Dote FEB. 28, 2017 e415P� MAY 1, 2017 Siamp Drawn No. 16.08 A3.12 v_ BLRB ARCHITECTS, P.S. 16.08_A3. 12 24x36. dwg v O A 6 C 7 EXISTING PROPOSED CEMENT FIBER PANEL TYPE D METAL PANEL TYPE A METAL PANEL TYPE C1 2 CEMENT FIBER PANELi: TYPE B PRECASTCONCR EXISTING 30' -0" T.O. BARREL VAULT METAL PANEL TYPE A CEMENT FIBER PANEL TYPE D 8 7 EXISTING 23' -0" T.O. PARAPET EXISTING 23' -0" T.O. PARAPET WEIGHT ROOM ELEVATION - EAST AND WEST 1 SCALE: 1/8" = 1' -0" 0' -0" T.O. FIRST FLOOR METAL PANEL TYPE A METAL PANEL TYPE C1 0 4' ' WEIGHT ROOM ELEVATION - NORTH SCALE: 1 /8° = 1' —O" METAL PANEL TYPE A CEMENT FIBER PANEL TYPE D PRECAST CONCRETED T.O. FIRST FLOOR 8 DESIGN DRAWINGS - NOT FOR CONSTRUCTION: THE BUILDING IMAGES SHOWN ARE DESIGN REPRESENTATIONS ONLY. THESE DESIGN IMAGES MAY NOT REFLECT ULTIMATE VARIATIONS IN COLOR, SHADE, TINT, HUE, AMBIENT OR ARTIFICIAL LIGHT INTENSITY, MATERIALS/ TEXTURE, CONTRAST, DESIGN CHANGES REQUIRED BY THE AHJ, BUILDING CODES, OR OWNERS. METAL PANEL TYPE C1 MATERIALS LEGEND A METAL PANEL 'A' AEP SPAN, FLUSH PANEL, COOL ZINC GREY CEMENT FIBER PANEL 'B' NICHIHA, ED680 -CUS , DOWN POUR QMETAL PANEL 'C1' AEP SPAN, FLUSH PANEL, COOL METALLIC SILVER A, METAL PANEL 'C2' AEP SPAN, CORRUGATED PANEL, COOL METALLIC SILVER CEMENT FIBER PANEL '0' NICHIHA, EDA151, CRIMSON PLYMOUTH BRICK OPAINT AT SUNSHADE /MAIN ENTRY STOREFRONT SHERWIN- WILLIAMS, SW7004, SNOWBOUND OSTOREFRONT WINDOWS / DOORS EFCO, SERIES 403, CLEAR ANODIZED PRECAST CONCRETE EXISTING 41' -0" T.O. RIDGE CEMENT FIBER PANEL TYPE D T.O. 1ST FLR AUXILIARY GYMNASIUM ELEVATION - NORTH SCALE: 1/8" = 1' -0" PRECAST CONCRETE EXISTING SKYBRIDGE EXISTING 31' -0" a, 17.0. PARAPET T.O. PARAPET A AUXILIARY GYMNASIUM ELEVATION - EAST AND WEST SCALE: 1/8" = 1' -0" PRECAST CONCRETE METAL PANEL TYPEA EXISTING 31'-0 METAL P TYPE B METAL PANEL TYPE C T.O. PARAPET OUTDOOR LEARNING COURTYARD ELEVATION - SOUTH SCALE: 1/8•• = 1' -0" 0 4' 8' n OUTDOOR LEARNING COURTYARD ELEVATION - NORTH o SCALE: 1/8° = 1' -0" 0'A T.O. 1ST FLR CUP RESUBMITTAL FOSTER HIGH SCHOOL - MODERNIZATION & ADDITION TUKWILA SCHOOL DISTRICT NO. 406 BLRB TACOMA IH€d FH Drawin=g Title ENLARGED EXTERIOR ELEVATIONS Date FEB. 28, 2017 Ne41 ed MAY 1, 2017 Stamp Drawn Cornet No. 16.08 Sheer. No. A3.13 BLEB ARCHITECTS, P. S. 16.08_A3,13 24 x36. dwg v N LANDSCAPE LEGEND SYMBOL SPECIES tsrueas sNOaN nr � °- za-al SHADE TREES ACCENT TREES ACER TRUNCATUM X A. PLATANOIDES WARRENS RED / PACIFIC SUNSET MAPLE NYSSA SYLVATICA / BLACK TUPELO GINGKO BILOBA 'PRINCETON SENTRY' / PRINCETON SENTRY GINGKO TILIA CORDATA 'GREENSPIRE' / GREENSPIRE LINDEN QUERCUS RUBRA / RED OAK POPULUS TREMULA 'ERECTA' / COLUMNAR SWEDISH ASPEN ACER CIRCINATUM / VINE MAPLE AMELANCHIER X GRANDIFLORA 'AUTUMN BRILLANCE / SERVICEBERRY CONIFEROUS TREES PINUS CONTORTA / SHORE PINE THUJA PLICATA 'HOGAN'/ WESTERN RED CEDAR SHRUBS AND GRASSES 0 CAMELLIA SAS. ' SETSUGEKKA'/ 1.J SETSUGEKKA CAMELLIA O 0 0 CORNUS STOL. 'KELSEYI'/ KELSEY DOGWOOD CORNUS STOL. 'ARCTIC FIRE'/ ARCTIC FIRE RED TWIG DOGWOOD VACCINIUM OVATUM / EVERGREEN HUCKLEBERRY MAHONIA AQUIF. 'COMPACTA'/ COMPACT OREGON GRAPE SPIRAEA BETUUFOUA 'TOR' / BIRCHLEAF SPIREA VIBURNUM DAVIDII / DAVID VIBURNUM ARBUTUS UNEDO 'COMPACTA'/ DWARF STRAWBERRY TREE MYRICA CALIFORNICA / PACIFIC WAX MYRTLE RIBES SANGUINEUM / RED FLOWERING CURRANT SARCOCOCCA RUSCIFOLIA / FRAGRANT SWEET BOX 0 PRUNUS L'MOUNT VERNON' / MOUNT VERNON LAUREL O RHODENDRON X. 'DREAMLAND'/ DREAMLAND RHODODENDRON GROUNDCOVER FRAGARIA CHILOENSIS / BEACH STRAWBERRY LONICERA PILEATA / PRIVET HONEYSUCKLE GAULTHERIA SHALLON / SALAL MAHONIA REPENS / CREEPING OREGON GRAPE URIOPE MUSCARI 'BIG BLUE' / BIG BLUE LILYTURF NATIVE GROUNDCOVER MIX LAWN GAULTHERIA SHALLON / SALAL MAHONIA NERVOSA / CASCADE OREGON CRAPE ARCTOSTAPHYLOS UVA —URSI / KINNIKINNICK DRILL SEEDED LAWN AT FIELDS HYDRO — SEEDED LAWN EXISTING TREES i x EXISTING TREE g0 _ TENNIS COURTS SOFTBALL FIELD BASEBALL FIELD CLASSROOM ADDITION TENNIS COURTS SCALE: 1 "= 40' -0" 0' 20' 40' 80' 160' WEISMANDESIGNGROUP LANDSCAPE CONSULTANT 2329E MADISON ST 206 -322 -1732 SEATTLE WA 98112 WWW.WDGINC.COM CONDITIONAL USE PERMIT FOSTER HIGH SCHOOL - MODERNIZATION & ADDITION © BLRB ARCHITECTS, P.S. FHS LL —PLNT. DWG v ROOTBALL TO BE APPROPRIATELY SIZED IN RELATION TO CROWN OF TREE SPECIFIED FERIIJZER TABLETS IF REQUIRED BY SOILS TEST PRUNE ONLY BROKEN BRANCHES AT PLANTING BROADLEAF TREE TRUNK FLARE MUST BE VISIBLE, SET CROWN OF ROOTBALL 1" ABOVE FINISH GRADE SPECIFIED MULCH CREATE 3" HIGH SOIL SAUCER AROUND EDGE OF ROOT PACKAGE FINISH GRADE SPECIFIED IMPORT TOPSOIL REMOVE ALL BURLAP AND TWINE. - AMENDED SUB SOILS MIN. TWICE ROOTBALL DIA O DECIDUOUS TREE PLANTING BREAK UP SIDES AND BOTTOM OF PLANING HOLE COMPACT SOIL BENEATH ROOT PACKAGE TO ELIMINATE SETTLEMENT OR SHIFTING -111111E 111111E 111111= 111 =111111=111111E11 :1111- :11111 =1111 111111=11111 MIN. TWICE ROOTBALL DIA. O CONIFEROUS TREE PLANTING POI ik Scale: 3!8"=1-O" REMOVE ALL BURLAP SPECIFIED MULCH FINISH GRADE IMPORT TOPSOIL (SEE SPECS) PLANTING BACKFILL BREAK UP SIDES AND BOTTOM OF PIT UNDISTURBED NATIVE SOIL OR COMPACTED PLANTING BACKFILL r 114 a, N `'ya-i OA ∎� - 141 ■■■■■■■ Mil Mil ME M MI aranztlit - 111111 =1111 =1111 =11 11111E11111=1INE 1111=111111=11111 = 111111 IIMI1111= 11111 =IT1111 410 BIM 1111 =1111= 11111E 11111 - 111111_1: 11111- iiiiil_ 1111 -11111 I ICI Iii iii III / MIN. TWICE ROOTBALL DIA. O SHRUB PLANTING Scale: 112 " =1'-0" PLANT SHRUBS AT SAME GRADE AS NURSERY FINISH GRADE SPECIFIED MULCH PLANTING BACKFILL IMPORT TOPSOIL - SEE SPECS. REMOVE ALL BURLAP B &B OR CONTAINER AS SPECIFIED UNDISTURBED NATIVE SOIL OR COMPACTED PLANTING BACKFILL Scale: 1 "=1' -O" LANDSCAPE LEGEND (SYMBOLS SHOWN AT 1"=20 -0 ") SYMBOL SPECIES QUANTITY SIZE /CONDITION SHADE TREES (Fore NEP. Oee) SPACING AS SHOWN ON PLAN ACCENT TREES ACER TRUNCATUM X A. PLATANOIDES 4 WARRENS RED PACIFIC SUNSET MAPLE NYSSA SYLVATICA / BLACK TUPELO GINGKO BILOBA 'PRINCETON SENTRY' PRINCETON SENTRY GINGKO 11LIA CORDATA 'GREENSPIRE' / GREENSPIRE LINDEN QUERCUS RUBRA / RED OAK POPULUS TREMULA 'ERECTA' / COLUMNAR SWEDISH ASPEN 6 6 MIN. 2" CALIPER, 10 -12' MIN. HT. WELL BRANCHED, B &8 MIN. 2" CALIPER, 10 -12' MIN. HT. WELL BRANCHED, B &B MIN. 2" CALIPER, 10 -12' MIN. HT. WELL BRANCHED, B &B 18 MIN. 2" CALIPER, 10 -12' MIN. HT. WELL BRANCHED, B &B 8 5 MIN. 2" CALIPER, 10 -12' MIN. HT. WELL BRANCHED, B &B MIN. 2" CALIPER, 10 -12' MIN. HT. WELL BRANCHED, B &B ACER CIRCINATUM / VINE MAPLE 0 AMELANCHIER X GRANDIFLORA 'AUTUMN BRILLANCE / SERVICEBERRY CONIFEROUS TREES 5 2 MULTI STEMMED, MIN. (3) 3Q" CALIPER TRUNKS, 6 -8' HT., WELL BRANCHED, B &B MULTI STEMMED, MIN. (3) 314' CAUPER TRUNKS, 6 -8' HT., WELL BRANCHED, B &B \Y Y /yam 91 U1 PINUS CONTORTA / SHORE PINE THUJA PLICATA 'HOGAN'/ WESTERN RED CEDAR SHRUBS AND GRASSES 18 MIN. 6 -7' HT., FULL AND BUSHY TO BASE, B &B 15 MIN. 6 -7' HT., FULL AND BUSHY TO BASE, 8 &B 0 CAMELUA SASANOUA 'SETSUGEKKA' / SETSUGEKKA CAMELLIA © CORNUS STOLONIFERA 'KELSEY(' / KELSEY DOGWOOD CORNUS STOLONIFERA 'ARCTIC FIRE' / ARCTIC FIRE RED TWIG DOGWOOD O VACCINIUM OVATUM / EVERGREEN HUCKLEBERRY 9 9 15 -18" HT. & SPR., FULL & BUSHY B &B OR CONT. 15 -18" HT. & SPR., FULL & BUSHY B &B OR CONT. 55 15 -18" HT. & SPR., FULL & BUSHY B &B OR CONT. 40 15 -18" HT. & SPR., FULL & BUSHY B &B OR CONT. 8 MAHONIA AQUIFOUUM 'COMPACTA' / 42 18 -24" HT. & SPR., FULL & BUSHY COMPACT OREGON GRAPE B &B OR CONT. ▪ SPIRAEA BETULIFOLIA 'TOR' / 125 18 -24" HT. & SPR., FULL & BUSHY BIRCHLEAF SPIREA B &B OR CONT. I! VIBURNUM DAVIDII / DAVID VIBURNUM ARBUTUS UNEDO ' COMPACTA' / OA DWARF STRAWBERRY TREE • MYRICA CALIFORNICA / 6 PACIFIC WAX MYRTLE 74 18 -24" HT. & SPR., FULL & BUSHY B &B OR CONT. 73 24 -30" HT. & SPR., FULL & BUSHY B &B OR CONT. 24 -30" HT. & SPR., FULL & BUSHY B &B OR CONT. • RIBES SANGUINEUM / RED FLOWERING CURRANT SARCOCOCCA RUSCIFOUA / FRAGRANT SWEET BOX 24 24 -30" HT. & SPR., FULL & BUSHY B &B OR CONT. 25 24 -30" HT. & SPR., FULL & BUSHY B &B OR CONT. 0 PRUNUS LAUROC. 'MOUNT VERNON' / 130 MIN. 2 GAL. POTS, FULL AND BUSHY, MOUNT VERNON ENGLISH LAUREL CONT. O RHODENDRON X. 'DREAMLAND' / DREAMLAND RHODODENDRON 21 MIN. 2 GAL. POTS, FULL AND BUSHY, CONT. NOTES: 1. ALL GROUNDCOVER TO PLANTED AT = SPACING (TRIANGULAR) PER 0.C. SPACING ON PLANS GROUNDCOVER -TYP. EQ. BACK OF CURB OR BED LINE OGROUNDCOVER PLANTING Scale: 1,=1• -0" GROUNDCOVER FRAGARIA CHILOENSIS / BEACH STRAWBERRY LONICERA PILEATA / PRIVET HONEYSUCKLE GAULTHERIA SHALLON / SALAL MAHONIA REPENS / CREEPING OREGON GRAPE IiLIRIOPE MUSCARI 'BIG BLUE' / BIG BLUE IJLYTURF NATIVE GROUNDCOVER MIX 418 1,520 1,422 680 56 1 GAL. POTS cD 24" 0.C. TRIANGULAR SPACING START FIRST ROW 12" FROM EDGE OF PLANTING AREA GAULTHERIA SHALLON / SALAL LAWN 980 1 GAL. POTS ® 24" 0.0. TRIANGULAR SPACING START FIRST ROW 12" FROM MAHONIA NERVOSA / 980 EDGE OF PLANTING AREA CASCADE OREGON GRAPE ARCTOSTAPHYLOS UVA -URSI / 980 KINNIKINNICK DRILL SEEDED LAWN AT FIELDS 84,500 SF SEE SPECIFICATIONS HYDRO - SEEDED LAWN 10,797 SF SEE SPECIFICATIONS EXISTING TREES ( , 1 EXISTING TREE EXISTING TREE TO REMAIN, SAVE LANDSCAPE NOTES: AND PROTECT 1. SUBMIT COLOR PHOTOS REPRESENTATIVE OF PROPOSED NURSERY STOCK FOR EACH PLANT SPECIES AND VARIETY LISTED IN LANDSCAPE SCHEDULE. FINAL APPROVAL OF PLANT MATERIAL WILL NOT BE PROVIDED UNTIL DELIVERY AND REVIEW ON SITE. 2. CONTAINERIZED TREES ARE STRONGLY DISCOURAGED. TREES WITH LARGE CIRCLING ROOTS OR T00 DEEP ROOT SYSTEMS WILL BE REJECTED. 3. ALL ROOT PACKAGES MUST BE FREE OF ANY WEEDS. 4. TREES SHOULD NOT REQUIRE SIGNIFICANT PRUNING TO CORRECT HEALTH OR AESTHETIC DEFICIENCIES. PRUNE ONLY BROKEN BRANCHES AT PLANTING. 5. INSTALL 8" DEPTH AMENDED IMPORT SANDY LOAM TOPSOIL IN ALL NEW LANDSCAPE AREAS. SCARIFY SUBSOILS TO 4" DEPTH AND INCORPORATE TOPSOIL MATERIAL. SOIL MUST BE AMENDED, TILLED AND PREPPED TO A COMBINED DEPTH OF 12 INCHES. SOIL PREPARATION SHALL BE INSPECTED BY THE CITY PRIOR TO PLANTING. SEE SPECIFICATIONS FOR ADDITIONAL REQUIREMENTS. 6. INSTALL 3" DEPTH SPECIFIED MULCH IN ALL LANDSCAPE AREAS. 7. REFER TO CIVIL DEMOLITION DRAWINGS, SPECIFICATIONS, AND TREE PROTECTION DETAIL FOR REMOVAL REQUIREMENTS AND PROTECTION FENCING AROUND EXISTING VEGETATION. 8. REFER TO CIVIL PLANS FOR SCHEDULE OF EXISTING TREES TO BE SAVED OR REMOVED. 9. REFER TO CIVIL PLANS FOR NEW UTILITY WORK. CONTRACTOR RESPONSIBLE FOR PATCH AND REPAIR OF ALL EXISTING LANDSCAPE AREAS DISTURBED BY CONSTRUCTION WORK UNDER THIS CONTRACT. 10. REFER TO PLANTING AND SEEDING SPECIFICATION FOR ADDITIONAL REQUIREMENTS. INCLUDING EXTENDED MAINTENANCE REQUIREMENTS. LANDSCAPE CALCULATIONS: PARKING LOT LANDSCAPING: TMC 18.52.030 AND 18.52.020 E.2 REQUIREMENTS FOR PARKING LOTS: 20 SF PER STALL, ONE LANDSCAPE ISLAND FOR EVERY 10 PARKING SPACES, AND ONE LARGE TREE FOR EVERY 100 SF OF LANDSCAPE ISLAND FRONT ENTRY / SOUTH WEST PARKING LOT: MAXIMUM SPACING OF LANDSCAPE ISLANDS: 8 STALLS REQUIRED FOR 16 STALLS: 320 SF PROVIDED: 940 SF REQUIRED TREES: 4 PROVIDED TREES: 6 NORTH PARKING LOT: MAXIMUM SPACING OF LANDSCAPE ISLANDS: 10 STALLS REQUIRED FOR 49 STALLS: 980 SF PROVIDED: 1805 SF REQUIRED TREES: 10 PROVIDED TREES: 16 SCALE: 1 " =20' -0" __- 0' 10' 20' 40' 80' WEISMANDESIGNGROUP LANDSCAPE CONSULTANT 2329E MAD:SON ST 206 -322 -1732 SEATTLE WA 98112 W W W.WDGINCCOM CONDITIONAL USE PERMIT FOSTER HIGH SCHOOL - MODERNIZATION & ADDITION © BLRB ARCHITECTS, P.S. FHS LL -PLNT. DWG v a) LANDSCAPE LEGEND SYMBOL SPECIES (SOO. MOWN AT 1°-20' -O') SHADE TREES ACCENT TREES ACER TRUNCATUM X A. PLATANOIDES WARRENS RED / PACIFIC SUNSET MAPLE NYSSA SYLVATICA / BLACK TUPELO GINGKO BILOBA 'PRINCETON SENTRY' / PRINCETON SENTRY GINGKO 11LIA CORDATA 'GREENSPIRE' / GREENSPIRE UNDEN QUERCUS RUBRA / RED OAK POPULUS TREMULA 'ERECTA' / COLUMNAR SWEDISH ASPEN ACER CIRCINATUM / VINE MAPLE 0 AMELANCHIER X GRANDIFLORA 'AUTUMN BRILLANCE / SERVICEBERRY CONIFEROUS TREES X41 PINUS CONTORTA / SHORE PINE THUJA PLICATA 'HOGAN'/ WESTERN RED CEDAR SHRUBS AND GRASSES CAMELLIA SAS. 'SETSUGEKKA'/ SETSUGEKKA CAMELLIA CORNUS STOL. 'KELSEYF/ KELSEY DOGWOOD CORNUS STOL. 'ARCTIC FIRE'/ ARCTIC FIRE RED TWIG DOGWOOD 0 VACCINIUM OVATUM / EVERGREEN HUCKLEBERRY O MAHONIA AQUIF. 'COMPACTA'/ COMPACT OREGON GRAPE O SPIRAEA BETUIJFOUA 'TOR' / BIRCHLEAF SPIREA VIBURNUM DAVID!! / DAVID VIBURNUM ARBUTUS UNEDO 'COMPACTA'/ DWARF STRAWBERRY TREE M MYRICA CAUFORNICA / PACIFIC WAX MYRTLE RIBES SANGUINEUM / RED FLOWERING CURRANT O SARCOCOCCA RUSCIFOLIA / FRAGRANT SWEET BOX PRUNUS L. 'MOUNT VERNON' / MOUNT VERNON LAUREL O RHODENDRON X. 'DREAMLAND'/ DREAMLAND RHODODENDRON GROUNDCOVER FRAGARIA CHILOENSIS / BEACH STRAWBERRY LONICERA PILEATA / PRIVET HONEYSUCKLE GAULTHERIA SHALLON / SALAL MAHONIA REPENS / CREEPING OREGON GRAPE LIRIOPE MUSCARI 'BIG BLUE' / BIG BLUE LILYTURF NATIVE GROUNDCOVER MIX E. LAWN GAULTHERIA SHALLON / SALAL MAHONIA NERVOSA / CASCADE OREGON GRAPE ARCTOSTAPHYLOS UVA -URSI / KINNIKINNICK DRILL SEEDED LAWN AT FIELDS HYDRO- SEEDED LAWN EXISTING TREES I 1 EXISTING TREE 1 ANDSCAPE RUFFFR LENGTH- 329' CODE RFOUIRFMENTL SHRUBS SPACED AT 7' 0.C. SHRUBS RFOUIRED- 47 SHRUBS PROVIDED:65 SMALL TREES SPACED AT 20' ON CENTER TYP. • • TENNIS COURTS 10 NEW SOFTBALL FIELD [u WEISMANDESIGNGROUP U CLASSROOM ADDITION LANDSCAPE CONSULTANT 2329E MADXUN ST 206 -322 -1732 SEATTLE WA 98112 WWW.WDGINC.COM CONDITIONAL USE PERMIT FOSTER HIGH SCHOOL - MODERNIZATION & ADDITION MATCHLINE - SEE SHEET L2.03 SCALE: 1"=20'-0" MI -- 0' 10' 20' 40' 80' • © 13LRB ARCHITECTS, P.S. HIS LL -PLNT. DWG v 03 LANDSCAPE LEGEND SYMBOL SPECIES (sweasmomo,,,,, SHADE TREES ACCENT TREES ACER TRUNCATUM X A. PLATANOIDES WARRENS RED / PACIFIC SUNSET MAPLE NYSSA SYLVATICA / BLACK TUPELO GINGKO BILOBA 'PRINCETON SENTRY' / PRINCETON SENTRY GINGKO TILIA CORDATA 'GREENSPIRE / GREENSPIRE UNDEN QUERCUS RUBRA / RED OAK POPULUS TREMULA 'ERECTA' / COLUMNAR SWEDISH ASPEN ACER CIRCINATUM / VINE MAPLE AMELANCHIER X GRANDIFLORA 'AUTUMN BRILLANCE / SERVICEBERRY CONIFEROUS TREES .0'14 PINUS CONTORTA / SHORE PINE IMUJA PLICATA 'HOGANY WESTERN NEC CEDAR SHRUBS AND GRASSES 0 0 E) CD (D 0 © 0 GROUNDCOVER C'CP3=0C.; CAMELLIA SAS. 'SETSUGEKK SETSUGEKK A CAMELLIA CORNUS STOL. 'KELSEY17 KELSEY DOGWOOD CORNUS STOL. 'ARCIIC FIRE/ ARC-1C FIRE RED TWIG DOGWOOD VACCINIUM OVATUM / EVERGREEN HUCKLEBERRY MAHONIA AQUIF. 'COMP ACTAY COMPACT OREGON GRAPE SPIRAEA BERJUFOLJA 'TOR' / BIRCHLEAF SPIREA VIBURNUM DAVIDII / DAVID VIBURNUM ARBUTUS UNEDO 'COMP ACTAY DWARF STRAWBERRY TREE MYRICA CAUFORNICA / PACIFIC WAX MYRTLE RIBES SANGUINEUM / RED FLOWERING CURRANT SARCOCOCCA RUSCIFOLIA / FRAGRANT SWEET BOX PRUNUS L 'MOUNT VERNON' / MOUNT VERNON LAUREL RHODENDRON X. 'DREAMLAND/ DREAMLAND RHODODENDRON FRAGARIA CHILOENSIS / BEACH STRAWBERRY LONICERA PILEATA / PRIVET HONEYSUCKLE GAULTHERIA SHALLON / SALAL MAHONIA REPENS / CREEPING OREGON GRAPE LIRIOPE MUSCARI 'BIG BLUE' / BIG BLUE ULYTURF NATIVE GROUNDCOVER MIX LAWN GAULTHERIA SHALLON / SALAL MAHONIA NERVOSA / CASCADE OREGON GRAPE ARCTOSTAPHYLOS UVA—URSI / KINNIKINNICK DRILL SEEDED LAWN AT FIELDS :'• . • T1 HYDRO—SEEDED LAWN EXISTING TREES I I EXISTING TREE Z.= LANDSCAPE BUFFER LENGTH: 594' CODE REQUIREMENT. SHRUBS SPACED AT r a c. SHRUBS REQUIRED: 85 SHRUBS PROVIDED-R7 n LARUE ,TREES - SPACED AT 30' - - OK CENTER TYPT „ - T . _ TENNIS COURTS - MATCHLINE - SEE SHEET-1_2.0-4 - SCALE:1"=2U-0" MI 0' 10' 20' 40' 80' Al■ WEISMANDESIGNGROUP LANDSCAPE CONSULTANT 23291 NIADSON ST 206-322-1732 SEATTLE WA 98112 WWW.WDGINC.CON1 CONDITIONAL USE PERMIT FOSTER HIGH SCHOOL - MODERNIZATION & ADDITION TUKWILA SCHOOL DISTRICT NO. 406 TACOMA 7s1A77t DODD T_Taw Drawing Title LANDSCAPE PLAN Dm" AL, AR Sheet No. of L2.02 13L183 ARCHITECTS, P.S. FES LI—PLET. DWG op O LANDSCAPE LEGEND SYMBOL SPECIES (SYMBOLS MOWN AT f'-3O'-O') SHADE TREES ACCENT TREES ACER TRUNCATUM X A. PLATANOIDES WARRENS RED / PACIFIC SUNSET MAPLE NYSSA SYLVATICA / BLACK TUPELO GINGKO BILOBA 'PRINCETON SENTRY' / PRINCETON SENTRY GINGKO TILIA CORDATA 'GREENSPIRE / GREENSPIRE LINDEN QUERCUS RUBRA / RED OAK POPULUS TREMULA 'ERECTA' / COLUMNAR SWEDISH ASPEN ACER CIRCINATUM / VINE MAPLE AMELANCHIER X GRANDIFLORA 'AUTUMN BRILLANCE / SERVICEBERRY CONIFEROUS TREES PINUS CONTORTA / SHORE PINE THUJA PUCATA 'HOGAN./ WESTERN RED CEDAR SHRUBS AND GRASSES 0 O CD CD O 0 0 0 GROUNDCOVER CAMELLIA SAS. ' SETSUGEKKA'/ SETSUGEKKA CAMELLIA CORNUS STOL. 'KELSEYI'/ KELSEY DOGWOOD CORNUS STOL. 'ARCTIC FIRE/ ARCTIC FIRE RED TWIG DOGWOOD VACCINIUM OVATUM / EVERGREEN HUCKLEBERRY MAHONIA AQUIF. 'COMPACTA'/ COMPACT OREGON GRAPE SPIRAEA BETUUFOLIA 'TOR' / BIRCHLEAF SPIREA VIBURNUM DAVIDII / DAVID VIBURNUM ARBUTUS UNEDO 'COMPACTA'/ DWARF STRAWBERRY TREE MYRICA CALIFORNICA / PACIFIC WAX MYRTLE RIBES SANGUINEUM / RED FLOWERING CURRANT SARCOCOCCA RUSCIFOUA / FRAGRANT SWEET BOX PRUNUS L. 'MOUNT VERNON' / MOUNT VERNON LAUREL RHODENDRON X. 'DREAMLAND'/ DREAMLAND RHODODENDRON FRAGARIA CHILOENSIS / BEACH STRAWBERRY LONICERA PILEATA / PRIVET HONEYSUCKLE GAULTHERIA SHALLON / SALAL MAHONIA REPENS / CREEPING OREGON GRAPE URIOPE MUSCARI 'BIG BLUE' / BIG BLUE LILYTURF NATIVE GROUNDCOVER MIX GAULTHERIA SHALLON / I SALAL MAHONIA NERVOSA / CASCADE OREGON GRAPE ARCTOSTAPHYLOS UVA -URSI / KINNIKINNICK LAWN DRILL SEEDED LAWN AT FIELDS HYDRO- SEEDED LAWN EXISTING TREES EXISTING TREE TCHLINE - SEE SHEET L2.01 0 la _ FITNESS ADDITION C J E_ ▪ W _ W ▪ w W W ▪ z 0 71 0 I- I WEISMANDESIGNGROUP LANDSCAPE ▪ CONSULTANT 2329E MADISON ST 206 -322 -1732 SEATTLE WA 98112 W W W.WDGINC.COM CONDITIONAL USE PERMIT FOSTER HIGH SCHOOL - MODERNIZATION & ADDITION TACOMA === < _ z- J ti11ti� a� SCALE: 1"=20'-0" MI -- 0' 10' 20' 40' 80' © 13LRB ARCHITECTS, P.S. FHS LL- PLNT.DY8G op N LANDSCAPE LEGEND SYMBOL SPECIES (SYMBOLS SHOWY AT r- 2o._o, SHADE TREES ACCENT TREES ACER TRUNCATUM X A. PLATANOIDES WARRENS RED / PACIFIC SUNSET MAPLE NYSSA SYLVATICA / BLACK TUPELO GINGKO BILOBA 'PRINCETON SENTRY' / PRINCETON SENTRY GINGKO TIIJA CORDATA 'GREENSPIRE' / GREENSPIRE LINDEN QUERCUS RUBRA / RED OAK POPULUS TREMULA 'ERECTA' / COLUMNAR SWEDISH ASPEN G ACER CIRCINATUM / VINE MAPLE AMELANCHIER X GRANDIFLORA 'AUTUMN BRILLANCE / SERVICEBERRY CONIFEROUS TREES PINUS CONTORTA / SHORE PINE THUJA PLICATA 'HOGAN./ WESTERN RED CEDAR SHRUBS AND GRASSES J"\ CAMELLIA SAS. ' SETSUGEKKA'/ 1:J SETSUGEKKA CAMELLIA O 0 CORNUS STOL. 'KELSEYI'/ KELSEY DOGWOOD CORNUS STOL. 'ARCTIC FIRE'/ ARCTIC FIRE RED TWIG DOGWOOD VACCINIUM OVATUM / EVERGREEN HUCKLEBERRY MAHONIA AQUIF. 'COMPACTA'/ COMPACT OREGON GRAPE SPIRAEA BETULIFOLIA 'TOR' / BIRCHLEAF SPIREA VIBURNUM DAVID!! / DAVID VIBURNUM ARBUTUS UNEDO 'COMPACTA'/ DWARF STRAWBERRY TREE • MYRICA CAUFORNICA / PACIFIC WAX MYRTLE O RIBES SANGUINEUM / RED FLOWERING CURRANT SARCOCOCCA RUSCIFOLIA / FRAGRANT SWEET BOX PRUNUS L. 'MOUNT VERNON' / MOUNT VERNON LAUREL O RHODENDRON X. 'DREAMLAND'/ DREAMLAND RHODODENDRON GROUNDCOVER FRAGARIA CHILOENSIS / BEACH STRAWBERRY LONICERA PILEATA / PRIVET HONEYSUCKLE GAULTHERIA SHALLON / SALAL MAHONIA REPENS / CREEPING OREGON GRAPE URIOPE MUSCARI 'BIG BLUE' / BIG BLUE LILYTURF NATIVE GROUNDCOVER MIX ISALGAUAL LTHERIA SHALLON / MAHONIA NERVOSA / CASCADE OREGON GRAPE ARCTOSTAPHYLOS UVA —URSI / KINNIKINNICK LAWN DRILL SEEDED LAWN AT FIELDS HYDRO— SEEDED LAWN EXISTING TREES EXISTING TREE MATCI LINE.- SEE SI -IEET L2_0 SS 'ION 1 MATCHLINE - SEE SHEET L2.0 • GYM • ADDITION • 11 1 / 1\ EXISTING — PARKING TO REMAIN \I /1 1" \'i ! DRIPUNE TYPICAL \ \ \ p p l \ ;1!,11 1 REPAIR EXISTING`.-? LANDSCAPE AREAS AS NEEDED 4 r °y 6 11111 �l NOTES: 1. A 6 —FOOT HIGH TEMPORARY CHAIN LINK FENCE MUST BE PLACED OUTSIDE THE DRIPLINE OF TREES PRIOR TO THE COMMENCEMENT OF DEMO & EARTHWORK. PLANNING DEPARTMENT MUST INSPECT AND SIGNOFF THAT TREE PROTECTION IS ADEQUATE PRIOR TO INITIATING DEMO AND EARTHWORK. 2. ADD A MINIMUM OF 4" OF MULCH TO THE BASE OF PROTECTED TREES INSIDE TEMPORARY FENCE AREA. 3. SIGNAGE NOTING THAT TREES WITHIN THE FENCING ARE TO BE SAVED, AND THAT NO MATERIAL STORAGE IS ALLOWED WITHIN THE FENCING SHALL BE PLACED ON THE FENCE IN A CONSPICUOUS LOCATION. 4. NO STOCKPILING OF MATERIAL AND NO VEHICULAR TRAFFIC ARE ALLOWED WITHIN THE LIMITS OF THE TEMPORARY FENCING. ONLY UMITED INTRUSION INTO TREE DRIP ZONES WILL BE ALLOWED AS SHOWN ON THE APPROVED PLANS. FILLING, EXCAVATING, AND CLEARING MUST BE ACCOMPLISHED BY HAND METHODS ONLY. 5. ROOTS OF TREES TO BE SAVED WHICH ARE DAMAGED DURING CONSTRUCTION WILL BE TREATED IN THE FOLLOWING WAY: • FOR DAMAGED ROOTS OVER 1" IN DIAMETER, MAKE A CLEAN, STRAIGHT CUT TO REMOVE THE DAMAGED PORTION OF THE ROOT. ALL EXPOSED ROOTS WILL BE TEMPORARILY COVERED WITH DAMP BURLAP OR WOOD SHAVING TO PREVENT DRYING AND COVERED WITH EARTH AS SOON AS POSSIBLE. 6. SEE PLAN FOR LOCATION OF EXISTING TREES TO RECEIVE TEMPORARY FENCING. OTREE PROTECTION NTS SCALE: 1 "= 20' -0" MI -- 0' 10' 20' 40' 80' WEISMANDESIGNGROUP LANDSCAPE CONSULTANT 2329E MADISON ST 206 -322 -1732 SEATT,5 WA 98112 WWW.WDGINC.COM CONDITIONAL USE PERMIT FOSTER HIGH SCHOOL - MODERNIZATION & ADDITION © BLRB ARCHITECTS, P.S. FHS LL —PLNT. DWG op 01NDINH0V11V General Notes: 1 Do Not Scale Drawings. 2. Refer To Civil drawings For Grading, Utility and Additional Layout Information. Refer To Architectural For Building Grid Layout Information. Verify Locations Of All Overhead And Underground Utilities Before Beginning Work. 5. Notify The Architect Immediately Of Any Discrepancies Found In Plans Or Deviations From Documented On -Site Conditions. Failure To Notify The Architect In A Timely Manner As Specified Shall Result In Contractor Taking Responsibility For Any And All Remedial Measures Required. 6. String Dimensions Of Site Improvements Are From Face Of Building Wall, Back Of Curb, Or coordinate Point As Shown On Plan. Stair Widths Indicated Are Clear Dimensions (Inside To Inside Wall Face). Where Dimensions Are In Feet Only, Contractor Is To Assume They Are 0" (E.G. 12' = 12' -0 "). 8. Mark Or Stake Locations Of Fencing, Site Walls, Ramps, Walks, Site Furniture, Athletic Equipment, Etc For Approval By Architect, Per Specifications, Prior To Installation. Landscape Calculations: Parking Lot Landscaping: TMC 18.52.030 Requirements For Parking Lots In LDR Zone, Behind Buildings: 15 sf Per Stall, One Large Tree For Every 100 sf Of Landscape Island Required For 80 Stalls: 1,200 sf Provided: 1,450 sf Required Trees: 12 Provided Trees: 14 SITE IMPROVEMENTS LEGEND SYMBOL ITEM 777777 azIfo NEW CHAIN LINK FENCE SCORED CONCRETE PAVING SEEDED LAWN ENGINEERED WOOD CHIP SURFACING CRUSHED ROCK RUBBER TILE PLAY SURFACING BIKE RACK PICNIC / WORK TABLE BENCH FLAG POLE BOULDERS LOGS 15' Front Yard Type 1 Landscape Buffer 20' Front Yard Building Setback 5' Side Yard Building Setback . .. •.t —+.� , . . „fir,. • • : :■•" .,. • •■•■••• . • -I- 10' Side Yard Type 1 Landscape Buffe 8874910'E 408.73' Covered Play Area Site Fence Typ Kindergarten Play Area in 10' Rear Yard Building Setback • Covered Play Area Service Area Sec 15, Twn 23N, Rng 4E WM 5' Side Yard Building Setback 15' Steep Slope Setback Per Project Geotechnical Report Pre -K Play Area Top Of Critical Slope Infant Play Area r 1't • .`. \. :7. ' • \' \?� • i 10' Rear Yard Building Setback SCALE: 1"=30'-0" MI= (!) 0' 15' 30' 60' 120' © 2017 NAC inc REVISIONS REVISED 06.07.2017 z z J w W W W Z 003 Uo i 0 0 W w F- 0) w W° >) Z ow ,-Q W CO(0 E U Q I (206) 343 -0460 A SCHOOL DISTRICT H ce w H z W z W H ce W z 0 I- 4610 S. 142nd Street, TUKWILA WA 98168 NAC ARCH ITECTURE nacarchitecture.co 2025 FIRST AVENUE I SUITE 300 SEATTLE WA 98121 P:206.441.4522 CPL NO DRAWN CHECKED DATE C 160030 -04 SAS JAJ 02 -27 -2017 SITE PLAN C0.03 a) a) 0 Sec 15, Twn 23N, Rng 4E WM 10 20 40 Scale Horiz V=20' Vert 1=20' 295 Call before you Di g. 8-1-1 or 1-800-424-5555 UNDERGROUND SERVICE (USA) 295 42nd Ave South 290 285 280 275 270 265 ----------------------- ...s ...s 43rd Ave South N-31 -4- Existing Gradef 290 C) •4- $3) Cl) $3) 280 C,') PROPOSED GRADE- 275 0 co co Cl) 270 szu 265 lc 2 40+00 4 00 42+00 S 142ND ST Scale: I "=5' V. 1"=20' H New ADA Ramp 43+00 30.0' 30.0' New ADA Ramp 44+00 City required R-O-W Pavement 45+00 45H New ADA Ramp Provide Concrete Driveways At Existing Locations New Concrete Sidewalk 40+50 43+00 43+19.50 -4 South-142nd Street New Concrete Sidewalk 319.15' S87'49'311, Upgrad$ Existing Crosswflk 300 290 280 270 S 142nd Street APPROX. C.L. EX RIGHT-OF-WAY VARIES 70 4 Existin Fence Existing Grade 28.5' Ex Asphalt Width Varies 18.2' to 23.5' Ex 1-1-1 I- ) >4i ) CT' CD Existing Pat, ent PRO OSED 6" CURB AND 6`-0" SIDEWALK 300 Existing Cade 290 Existiag Curb 280 270 IDEWALK SECTION STA 42+00 Scale: 1"=20' _ NeW CurbfAlignmeint, _ — — 300 290 280 270 S 142nd Street APPROX. C.L. EX 30' RIGHT-OF-WAY • 15.0' 11.5' -4— 2.0% ‹c, 3.0'k_ 1 ! 4 15.0 11.5' A Existing Fence- ROPOSED PAVEMENT- 300 Existing Grade 290 280 Existing Rockrry -PROPOSED 6": CURB AND 6'-0" SIDEWALK NEW FISHER HIGH SCHOOL ATHLETIC FIELD IMPROVEMENTS 270 - Exist* Paved Path ROAD SECTION STA 44+50 Scale: I "=20' I cN, C) C, Cl) C, 0 co co Cl) a C.) 2 © 2017 NAC inc REVISIONS REVISED 06.07.2017 U H 0 0 U H cc w I— z w C) z w I— cc w z 2c: 0 I— ARCH ITECTURE nacarchitecture.co 2025 FIRST AVENUE I SUITE 300 SEATTLE WA 98121 P:206.441.4522 CPL NO DRAWN CHECKED DATE C160030-04 SAS JAJ 02-27-2017 ENTRY DRIVE PLAN AND PROFILE C4.20 op op A2.0 KJ> \\ CG; (F) D.7 9 co 0 N 42'-11" 0 COVERED PLAY SHED E e) 9 N 2 3 4 5 55' -0" A2.0 99' -6" 6 7 8 9 55' -0" 10 KINDERGARTFN #4 851 SF KINE ERGARTEN E #5 851 S KINDERGARTEN #3 KINDERGARTEN #2 KINDERGARTEN #1 854 SF Imp ELEC 232 SF PLAN -TIDE NORTH - - 3 4/30/2017 8:48:15 PM D: \_Revit \Tukwila 82K- Arch_ajain.rvt RISER ROO 160 SF D RR Z SF LoJ RR 83 S GENERAL STORAGE 159 SF CUSTODIAL ROOM 254 SF 6' -6" 41 -: Ali. I 0 0 J FFICE # 80 S FFICE # 80 S FFIC 80 F FFIC # 80 F FFICE 82 SF F MACH R SF ELEV 72 SF WAITING 151 SF MULTI - PURPOSE 1,750 SF MDF 220 SF FFICE J0 SF w 0 U w cc w M N- #9FFICE SF CONF RI 170 SF LV 0 0 0 0 r PRE -K #5 81 SF 'UU S Itt�f 53 SF k5 FF F» 62 SF RR 116 PRE -K #6 812 SF CONF #1 98 SF PLAY STORAG 94 SF COMMUNITY LEARNING ROOM STAIR 962 SF DEMO n KITCHEN II 56 SF STAFF WORK RM 328 SF COT RM 198 SF TAFF FIR ®70 CONF RM 171 SF 0 AL1 H OFFICE �112SF rt_ �I V ADMIN - CONF RM 297 SF SECRETARY 271 SF PRINCIPAL OFFICE 185 SF ECEPTI 255 SF N DIRECTOR OFFICE 201 SF 37' -9" ,, 7' -0" ,, 10' -3" 4 69' -9" PRE -K #4 777 SF PRE -K #3 791 SF BSE"VATI4 85 SF PRE -K #2 792 SF 4' RR C� I 1-1-5--SF- r4 PRE -K #1 791 SF ® ID ® ID UP SLP /E L WORK S ACE 330 SF A2.0 6 265' -6" LJ Ec*UNDRY 117 SF SbCIAL OR OFFICE 253 8F :,ONTEMP 84 SF INFANT CLASSROOM 791 SF LI I/ II KITCHENETT 12/ SF PSYCF OFFICE 142 SF OT /PT ROOM 437 SF 29' -9" ,, 10' -3" ,, 7' -0" ,, 37' -9" 8 9 u � k 20' -0" COVERED PLAY SHED L VT OFFICE STOR 235 SF TODDLER CLASSROOM 804 SF TODDLER CLASSROOM 805 SF 49' -6" 10 LEVEL 1 FLOOR PLAN A2.0 Scale: 1/16" = © 2017 NAC inc REVISIONS W W U oC cc W I- 2 W U NDERGARTEN TUKWILA SCHOOL DISTRICT 4610 S. 142ND ST, TUKWILA WA 98168 NAC ARCH ITECTURE nacarchitecture.co 2025 FIRST AVE I SUITE 300 SEATTLE WA 98121 NAC NO 121-16011 DRAWN CHECKED DATE 5 -01 -2017 LEVEL 1 FLOOR PLAN A1.1 CO O RT 4/30/2017 8:47:45 PM D: \_Revit \Tukwila 82K- Arch_ajain.rvt A2.0 1(5:),7 (—C—)0 (i3—) KINDERGARTEN #6 842 SF 4 K NDERGARTEN 847 SF A2.0 6 7 8 9 u u u KINDERGARTEN #17 817 SF OD S •R 61 SF C 3T CL 66 SF A2.0 KINDERGARTEN #8 831 SF 1 SF J jr KINDERGARTEN #16 842 SF II KINDE POD #4 ONF #4 100 SF MUNIT ARTNER KINDERGARTEN #9 851 SF CONF# 102 SF C,IlST CLO 0 SF KINDERGARTEN #10 848 SF - KINDERGARTEN #11 842 SF ROOF ACCESS 93 SF ELEV 81 SF N OPEN TO BELOW JL HALLWAY MECHANICAL OPEN TO BELOW KINDERGARTEN #15 836 SF KINDERGARTEN #14 849 SF KINDERGARTEN #13 850 SF KINDERGARTEN #12 849 SF KINDER POD V #3 1,415 SF HALLWAY IDF 70 SF ✓ ir ir ir ir ir 11— it ir ir ir ir ir ir ir ir i L J L J L J L J L J L J L J L J L I L J L I L J L J L J L J L J REM•TE' COPY -00M 153 F ROOF BELOW TAFF WO SPACES 215 SF IDF 121 SF STAFF BREAK RM I 431 SF 2 PLAN NORTH LEVEL 2 FLOOR PLAN 3 4 5 6 A2.0 7 8 9 10 A2.0 Scale: 1/16" = © 2017 NAC inc REVISIONS co W U oC W I- Z W U NDERGARTEN TUKWILA SCHOOL DISTRICT 4610 S. 142ND ST, TUKWILA WA 98168 NAC ARCH ITECTURE nacarchitecture.co 2025 FIRST AVE I SUITE 300 SEATTLE WA 98121 NAC NO 121-16011 DRAWN Author CHECKED Checker DATE 5 -01 -2017 LEVEL 2 FLOOR PLAN A1.2 CO N (2) 4 SCREEN SUPPORT POST WITH ACCENT COLOR PAINT PERFORATED METAL SCREEN TO CONCEAL MECHANICAL EQUIPMENT 6 8 9 OVERHANGING EVE 10 SERVICE YARD BEYOND SOUTH ELEVATION Scale: 1/16" = ACCENT COLOR SURROUND AT WINDOW, TYP FIBER CEMENT LAP SIDING, TYP COVERED ENTRY AREA ACCENT COLOR AT INFANT /TODDLER ALUMINUM PROGRAM ENTRY STOREFRONT ENTRY SYSTEM HIGH EAVE 132' -0" LOW EAVE 127' -6" LEVEL 2 114' -0 LEVEL 1 100' -0" EAST ELEVATION D.7 MECHANICAL LOUVER PAINTED TO MATCH SIDING ACCENT COLOR SURROUND AT WINDOW, TYP CEMENT FIBER BOARD PANEL SIDING RECESSED ENTRY WITH ACCENT COLOR SIDING HIGH EAVE 132' -0" LOW EAVE 127' -6" LEVEL 2 di 114' -0" LEVEL 1 di 100' -0" STEEL - FRAMED FREE - STAINDING COVERED PLAY SHED IN FORGROUND Scale: 1/16" =11-0" 10 ACCENT COLOR SURROUND AT WINDOW, TYP 9 8 6 CEMENT FIBER BOARD SIDING ALUMINUM STOREFRONT WINDOW SYSTEM, TYP 4 BUILDING WALL BEYOND A HIGH EAVE 132' -0" LOW EAVE 127' -6" 1 (6) ACCENT COLOR AT RECESSED BUS ENTRY WEST ELEVATION OPAQUE FENCING AT SERVICE YARD LEVEL 2 di 114' -0" LEVEL 1 di 100' -0" Scale: 1/16" = 1' -0" HIGH EAVE 132' -0" LOW EAVE 127' -6" / NORTH ELEVATION 3 Scale: 1/16" = 1' -0" 4/30/2017 8:50:14 PM D: \_Revit \Tukwila 82K- Arch_ajain.rvt WOOD SIDING, TYP FREE STANDING STAIRCASE WITH ACCENT COLOR STEEL RAILING PANELS ROLL -UP DOOR LEVEL 2 di 114' -0" LEVEL 1 di 100' -0" OPAQUE FENCING AT SERVICE YARD HIGH EAVE 132' -0" LOW EAVE 127' -6" EXTERIOR STAIRCASE WITH POWDERCOATED STEEL PANELS COURTYARD EAST ELEVATION LEVEL 2 di 114' -0" LEVEL 1 di 100' -0" Scale: 1/16" = 1••I T 111%, II I 1.1 COURTYARD WEST ELEVATION 5 Scale: 1/16" = 1' -0" HIGH EAVE 132' -0" LOW EAVE 127' -6" LEVEL 2 di 114' -0" LEVEL 1 di 100' -0" © 2017 NAC inc REVISIONS Q m o_ w U oC W 1- Z W L) NDERGARTEN TUKWILA SCHOOL DISTRICT 4610 S. 142ND ST, TUKWILA WA 98168 NAC ARCH ITECTURE nacarchitecture.co 2025 FIRST AVE 1 SUITE 300 SEATTLE WA 98121 NAC NO 121-16011 DRAWN CHECKED DATE 5 -01 -2017 EXTERIOR ELEVATIONS A2.0 CO r • E11111.:iM ........E11111.111 '1;71.S111M-17 „MNISICIN111111111111111111111 7E10111t L iu (7-6- SOUTH ELEVATION NTS EAST ELEVATION NTS NORTH ELEVATION NTS --._ --t-E-c -•-.7„77---2."--7.. '',--Q--• .-1"---2- ---:2-, ,:-...-..---',-=„-----,--:,..„,......; ----_-_—_,, ......„,„;;&_....„:„„ _______„,„....., ...,,,,.. \ ' : - _ , , \ NN . ■ , ,...., l•■•• 1.....,,,,,,,, ,,,, ,,, =17., ii, .-..{4' ; .4,1,', ' ,..,,,,,, ,-,..,-.•■+ ., , - ...., 7:7! NNNAN • •IMI I 111 WEST ELEVATION , • •••,'!-N , • NTS 1-1 2 ENTRANCE PERSPECTIVE NTS DROPOFF PERSPECTIVE NTS REVISIONS SCHOOL DISTRICT w z LLI t.J NDERGARTEN WILA BIRTH TO co 03 XXX S. 142ND ST, TUKW N AC ARCH ITECTURE nacarchitecture.com 2025 FIRST AVE 1 SUITE 300 SEATTLE WA 98121 P:206.441.4522 121-16011 1 ZMP 0 • ED MG DATE 05/01/2017 EXTERIOR ELEVATIONS A2.1 CO a) LANDSCAPE LEGEND (SYMBOLS SHOWN AT 1 "= 20' -(r) SYMBOL SPECIES QUANTITY SIZE /CONDITION SPECIMEN /SHADE TREES (FOR REFERENCE ONLY) SPACING AS SHOWN ON PLAN ACCENT TREES ACER FREEMANII 'AUTUMN BLAZE' / AUTUMN BLAZE MAPLE NYSSA SYLVATICA / BLACK TUPELO 11 MIN. 2" CALIPER, 10 -12' MIN. HT. WELL BRANCHED, B &B 5 MIN. 2" CALIPER, 10 -12' MIN. HT. WELL BRANCHED, B &B ACER CIRCINATUM / VINE MAPLE CONIFEROUS TREES 3 MULTI STEMMED, MIN. (3) 3/4" CALIPER TRUNKS, 6 -8' HT., WELL BRANCHED, B &B PSEUDOTSUGA MENZIESII/ DOUGLAS FIR THUJA PLICATA 'HOGAN'/ WESTERN RED CEDAR SHRUBS AND GRASSES 10 MIN. 6 -7' HT., FULL AND BUSHY TO BASE, B &B 10 MIN. 6 -7' HT., FULL AND BUSHY TO BASE, B &B lir CORNUS STOLONIFERA 'KELSEYI' / KELSEY DOGWOOD CORNUS STOLONIFERA 'ARCTIC FIRE' / ARCTIC FIRE RED TWIG DOGWOOD O MAHONIA AQUIFOLIUM 'COMPACTA' / COMPACT OREGON GRAPE 0 SPIRAEA BETULIFOLIA 'TOR' / BIRCHLEAF SPIREA ARBUTUS UNEDO ' COMPACTA' / AA DWARF STRAWBERRY TREE ® RIBES SANGUINEUM / g RED FLOWERING CURRANT 105 15 -18" HT. & SPR., FULL & BUSHY B &B OR CONT. 38 15 -18" HT. & SPR., FULL & BUSHY B &B OR CONT. 27 18 -24" HT. & SPR., FULL & BUSHY B &B OR CONT. 83 18 -24" HT. & SPR., FULL & BUSHY B &B OR CONT. 38 24 -30" HT. & SPR., FULL & BUSHY B &B OR CONT. GROUNDCOVER 24 -30" HT. & SPR., FULL & BUSHY B &B OR CONT. FRAGARIA CHILOENSIS / BEACH STRAWBERRY NATIVE GROUNDCOVER MIX 875 1 GAL. POTS © 24" 0.C. TRIANGULAR SPACING START FIRST ROW 12" FROM EDGE OF PLANTING AREA LAWN 40% GAULTHERIA SHALLON / SALAL 40% MAHONIA REPENS / CREEPING MAHONIA 20% POLYSTICHUM MUNITUM / SWORD FERN 760 1 GAL. POTS © 24" O.C. TRIANGULAR SPACING START 760 FIRST ROW 12" FROM EDGE OF PLANTING AREA 380 EXISTING TREES HYDRO— SEEDED LAWN 63,050 SF SEE SPECIFICATIONS EXISTING TREE LANDSCAPE NOTES: EXISTING TREE TO REMAIN, SAVE AND PROTECT 1. SUBMIT COLOR PHOTOS REPRESENTATIVE OF PROPOSED NURSERY STOCK FOR EACH PLANT SPECIES AND VARIETY LISTED IN LANDSCAPE SCHEDULE. FINAL APPROVAL OF PLANT MATERIAL WILL NOT BE PROVIDED UNTIL DELIVERY AND REVIEW ON SITE. 2. CONTAINERIZED TREES ARE STRONGLY DISCOURAGED. TREES WITH LARGE CIRCLING ROOTS OR TOO DEEP ROOT SYSTEMS WILL BE REJECTED. 3. ALL ROOT PACKAGES MUST BE FREE OF ANY WEEDS. 4. TREES SHOULD NOT REQUIRE SIGNIFICANT PRUNING TO CORRECT HEALTH OR AESTHETIC DEFICIENCIES. PRUNE ONLY BROKEN BRANCHES AT PLANTING. 5. INSTALL 8" DEPTH AMENDED IMPORT SANDY LOAM TOPSOIL IN ALL NEW LANDSCAPE AREAS. SCARIFY SUBSOILS TO 4" DEPTH AND INCORPORATE TOPSOIL MATERIAL. SOIL MUST BE AMENDED, TILLED AND PREPPED TO A COMBINED DEPTH OF 12 INCHES. SOIL PREPARATION SHALL BE INSPECTED BY THE CITY PRIOR TO PLANTING. SEE SPECIFICATIONS FOR ADDITIONAL REQUIREMENTS. 6. INSTALL 3" DEPTH SPECIFIED MULCH IN ALL LANDSCAPE AREAS. 7. REFER TO CIVIL DEMOLITION DRAWINGS, SPECIFICATIONS, AND TREE PROTECTION DETAIL FOR REMOVAL REQUIREMENTS AND PROTECTION FENCING AROUND EXISTING VEGETATION. 8. REFER TO CIVIL PLANS FOR SCHEDULE OF EXISTING TREES TO BE SAVED OR REMOVED. 9. REFER TO CIVIL PLANS FOR NEW UTILITY WORK. CONTRACTOR RESPONSIBLE FOR PATCH AND REPAIR OF ALL EXISTING LANDSCAPE AREAS DISTURBED BY CONSTRUCTION WORK UNDER THIS CONTRACT. 10. REFER TO PLANTING AND SEEDING SPECIFICATION FOR ADDITIONAL REQUIREMENTS, INCLUDING EXTENDED MAINTENANCE REQUIREMENTS. LANDSCAPE CALCULATIONS: PARKING LOT LANDSCAPING: TMC 18.52.030 AND 18.52.020 E.2 REQUIREMENTS FOR PARKING LOTS:15 SF PER STALL, ONE LANDSCAPE ISLAND FOR EVERY 10 PARKING SPACES, AND ONE LARGE TREE FOR EVERY 100 SF OF LANDSCAPE ISLAND REQUIRED FOR 73 STALLS: 1,095 SF PROVIDED: 3,270 SF REQUIRED TREES: 11 PROVIDED TREES: 11 LANDSCAPE BUFFER LENGTH: 210' CODE REQUIREMENT: SHRUBS SPACED AT 7' ON CENTER SHRUBS REQUIRED. 30 SHRUBS PROVIDED: 35 •.:..SMALL•. TFkEES.: SPACED AT 20' . • • .. • •'' : ON CENTER .T.YR. •. ,' .' " FENCE, TYP. 15' SLOPE SETBACK ZONE AS RECOMMENDED BY GEOTECH. EXISTING VEGETATION TO REMAIN TOP OF CRITICAL SLOPE MUNITY PLAZA: -L INFANT WLY _ L L L2.01 L2.02 15' SLOPE SETBACK ZONE AS RECOMMENDED BY GEOTECH. EXISTING VEGETATION TO REMAIN S 142ND STREET - --PARKING: 73 STALLS SCALE:1 "= 30' -0" 0' 15' 30' 60' 120' © 2017 NAC inc REVISIONS REVISED 06/07/17 I E 0 0 v N O 0 ca LJ � N N m N Z N N Z O Co rfiVI al 1.11 w w 1- H in cn N m w N V1 z W z M Qo NDERGARTEN A SCHOOL DISTRICT A WA 98168 XXX S. 142ND ST, TUKWI NAC ARCHITECTURE nacarchitecture.com 2025 FIRST AVE 1 SUITE 300 SEATTLE WA 98121 P:206.441.4522 NAC NO 121 -16011 DRAWN AL CHECKED AR DATE 5 -01 -2017 OVERALL LANDSCAPE PLAN 2.00 03 LANDSCAPE LEGEND (SYMBOLS SHOWN AT 1 "= 20' -0 ") SYMBOL SPECIES QUANTITY SIZE /CONDITION SPECIMEN /SHADE TREES (FOR REFERENCE ONLY) SPACING AS SHOWN ON PLAN ACCENT TREES ACER FREEMANII 'AUTUMN BLAZE' / AUTUMN BLAZE MAPLE NYSSA SYLVATICA / BLACK TUPELO 11 5 MIN. 2" CALIPER, 10 -12' MIN. HT. WELL BRANCHED, B &B MIN. 2" CALIPER, 10 -12' MIN. HT. WELL BRANCHED, B &B ACER CIRCINATUM / VINE MAPLE CONIFEROUS TREES 3 MULTI STEMMED, MIN. (3) 3/4" CALIPER TRUNKS, 6 -8' HT., WELL BRANCHED, B &B PSEUDOTSUGA MENZIESII/ DOUGLAS FIR THUJA PLICATA 'HOGAN'/ WESTERN RED CEDAR SHRUBS AND GRASSES 10 MIN. 6 -7' HT., FULL AND BUSHY TO BASE, B &B 10 MIN. 6 -7' HT., FULL AND BUSHY TO BASE, B &B `r CORNUS STOLONIFERA 'KELSEYI' / KELSEY DOGWOOD CORNUS STOLONIFERA 'ARCTIC FIRE' / ARCTIC FIRE RED TWIG DOGWOOD O MAHONIA AQUIFOLIUM 'COMPACTA' / COMPACT OREGON GRAPE 0 SPIRAEA BETULIFOLIA 'TOR' / BIRCHLEAF SPIREA ARBUTUS UNEDO ' COMPACTA' / A DWARF STRAWBERRY TREE ® RIBES SANGUINEUM / RED FLOWERING CURRANT GROUNDCOVER 105 15 -18" HT. & SPR., FULL & BUSHY B &B OR CONT. 38 15 -18" HT. & SPR., FULL & BUSHY B &B OR CONT. 27 18 -24" HT. & SPR., FULL Sc BUSHY B &B OR CONT. 83 18 -24" HT. & SPR., FULL & BUSHY B &B OR CONT. 38 24 -30" HT. & SPR., FULL & BUSHY B &B OR CONT. 9 24 -30" HT. & SPR., FULL & BUSHY B &B OR CONT. FRAGARIA CHILOENSIS / BEACH STRAWBERRY NATIVE GROUNDCOVER MIX 875 1 GAL. POTS © 24" O.C. TRIANGULAR SPACING START FIRST ROW 12" FROM EDGE OF PLANTING AREA LAWN 40% GAULTHERIA SHALLON / SALAL 40% MAHONIA REPENS / CREEPING MAHONIA 20% POLYSTICHUM MUNITUM / SWORD FERN 760 1 GAL. POTS © 24" O.C. TRIANGULAR SPACING START 760 FIRST ROW 12" FROM EDGE OF PLANTING AREA 380 EXISTING TREES HYDRO— SEEDED LAWN 63,050 SF SEE SPECIFICATIONS EXISTING TREE EXISTING TREE TO REMAIN, SAVE AND PROTECT AT 7' ON CENTER Ct w w• ° w° LJ- CO N5o w Lt < LLJ O C (/) (n w m ODD m _1.'1O�� z O O (n (n LANDSCAPE BUFFER LENGTH: 210' CODE REQUIREMENT: SHRUBS SPACED AT 7' ON CENTER SHRUBS REQUIRED: 30 SHRUBS PROVIDED: 35 • FENCE, TYP. 15' SLOPE SETBACK ZONE AS RECOMMENDED BY GEOTECH. EXISTING VEGETATION TO REMAIN TOP OF CRITICAL SLOPE 1UNITY' PLAZA ATCHLINE - SEE SHEET SCALE: 1 "= 20' -0" 1 0' 10' 20' 40' 80' © 2017 NAC inc REVISIONS REVISED 06/07/17 GNGROUP 2 0 v N Z rW N m Lip 0 N A SCHOOL DISTRICT D NDERGARTEN CENTER 1- XXX S. 142ND ST, TU KW I LA WA 98168 Nnc ARCH ITECTURE nacarchitecture.com 2025 FIRST AVE 1 SUITE 300 SEATTLE WA 98121 P:206.441.4522 NAC NO 121 -16011 DRAWN AL CHECKED AR DATE 5 -01 -2017 LANDSCAPE PLAN L2.01 O O LANDSCAPE LEGEND (SYMBOLS SHOWN AT 1 "= 20' -0 ") SYMBOL SPECIES QUANTITY SIZE /CONDITION SPECIMEN /SHADE TREES ACCENT TREES ACER FREEMANII 'AUTUMN BLAZE' / AUTUMN BLAZE MAPLE NYSSA SYLVATICA / BLACK TUPELO ACER CIRCINATUM / VINE MAPLE CONIFEROUS TREES (FOR REFERENCE ONLY) 11 5 3 SPACING AS SHOWN ON PLAN MIN. 2" CALIPER, 10 -12' MIN. HT. WELL BRANCHED, B &B MIN. 2" CALIPER, 10 -12' MIN. HT. WELL BRANCHED, B &B MULTI STEMMED, MIN. (3) 3/4" CALIPER TRUNKS, 6 -8' HT., WELL BRANCHED, B &B PSEUDOTSUGA MENZIESII/ DOUGLAS FIR THUJA PLICATA 'HOGAN'/ WESTERN RED CEDAR SHRUBS AND GRASSES 10 MIN. 6 -7' HT., FULL AND BUSHY TO BASE, B &B 10 MIN. 6 -7' HT., FULL AND BUSHY TO BASE, B &B `r CORNUS STOLONIFERA 'KELSEYI' / KELSEY DOGWOOD CORNUS STOLONIFERA 'ARCTIC FIRE' / ARCTIC FIRE RED TWIG DOGWOOD MAHONIA AQUIFOLIUM ' COMPACTA' / COMPACT OREGON GRAPE Ox SPIRAEA BETULIFOLIA 'TOR' / BIRCHLEAF SPIREA ARBUTUS UNEDO 'COMPACTA' / OO DWARF STRAWBERRY TREE ® RIBES SANGUINEUM / RED FLOWERING CURRANT GROUNDCOVER 105 15 -18" HT. & SPR., FULL & BUSHY B &B OR CONT. 38 15 -18" HT. & SPR., FULL & BUSHY B &B OR CONT. 27 18 -24" HT. & SPR., FULL & BUSHY B &B OR CONT. 83 18 -24" HT. & SPR., FULL & BUSHY B &B OR CONT. 38 24 -30" HT. & SPR., FULL & BUSHY B &B OR CONT. 9 24 -30" HT. & SPR., FULL & BUSHY B &B OR CONT. FRAGARIA CHILOENSIS / BEACH STRAWBERRY NATIVE GROUNDCOVER MIX 875 1 GAL. POTS @ 24" 0.C. TRIANGULAR SPACING START FIRST ROW 12" FROM EDGE OF PLANTING AREA LAWN 40% GAULTHERIA SHALLON / SALAL 40% MAHONIA REPENS / CREEPING MAHONIA 20% POLYSTICHUM MUNITUM / SWORD FERN 760 1 GAL. POTS @ 24" 0.C. TRIANGULAR SPACING START 760 FIRST ROW 12" FROM EDGE OF PLANTING AREA 380 •r EXISTING TREES HYDRO— SEEDED LAWN 63,050 SF SEE SPECIFICATIONS EXISTING TREE EXISTING TREE TO REMAIN, SAVE AND PROTECT CHLINE SEE SHEET L2.01 15' SLOPE SETBACK ZOI' AS RECOMMENDED BY GEOTECH. EXISTING VEGETATION TO REMAIN PARKING: 73 STALLS EXI1STING :: GRAVEL, DRIVE SHOWALTER MIDDLE SCHOOL;: SCALE: 1 "= 20' -0" 0' 10' 20' 40' 80' © 2017 NAC inc REVISIONS REVISED 06/07/17 Q J H a_ m U v) G 2 0 Z m CI n W N ` M `JSS o� N v, N z7 0 o ND A SCHOOL DISTRICT XXX S. 142ND ST, TUKWILA WA 98168 NAC ARCH ITECTURE nacarchitecture.com 2025 FIRST AVE 1 SUITE 300 SEATTLE WA 98121 P:206.441.4522 NAC NO 121 -16011 DRAWN AL CHECKED AR DATE 5 -01 -2017 L2.02 102 SCHOOL C71 s T R I c T 1 4040 S. "144th St. Tukwila, WA 98168 ( (206) 901 -8000 1 tukwi Ia. wednet.edu SEPA MITIGATED DETERMINATION OF NONSIGNIFICANCE Foster High School Modernization and Additions (FHS), Showalter Middle School Modernization and Additions (SMS), New Birth -to- Kindergarten Center (132K) DESCRIPTION OF PROPOSAL: The project entails three primary projects: Foster High School Modernization and Additions; Showalter Middle School Modernization and Additions; and construction of the new Birth -to- Kindergarten Center. All projects will have separate and independent access and circulation. Foster High School Modernization and Additions - The District will renovate, modernize and expand the existing school to accommodate smaller class sizes and a STEAM focus. The building will add up to 15 teaching stations /classrooms; expand and enclose the student commons; add an auxiliary gymnasium and expand the weight room; reconfigure the ball fields to accommodate baseball, softball and tennis courts; reconfigure and reduce parking; and make other modernization and safety improvements. The project entails demolition of the existing District technology building located onsite and removal of four double classroom portables. The total expansion area is 61,164 square feet for a new total building size of 174,264 square feet. Capacity will increase from 878 to 1,100 students; however actual enrollment is not anticipated to increase over the next 10 to 15 years. No changes are proposed to the existing access from S. 144th Street. Showalter Middle School Modernization and Additions -The District plans to modernize the facility to include interior improvements, add additional classrooms in a second story addition to the main classroom building, and expand the commons and gymnasium. The project entails the removal of two 1,800 square foot portables for a net building increase of 12,000 square feet and a total building size of 100,000 square feet. Improvements for emergency access include the addition of a gated emergency access connection to the north via S 142nd Street. The existing access /driveways from S. 144th Street and parking remain unchanged. The expansion is to accommodate classroom size reduction, however capacity will not increase. New Birth -to- Kindergarten Center - The District is adding a new 53,000 square foot, two -story Birth to Kindergarten Center located to the northeast of the Foster High School Stadium on what is presently District ballfields. The first phase of the project will be to house all kindergarten and pre - school from around the district. Subsequent phases will add infant and toddler programs. The total facility capacity will be 440 students and 28 classrooms, of which 290 students and 17 classrooms will be full day kindergarten; 90 preschoolers plus infant and toddler programs of 30 -40 children (in split half -day and full - day programs). Each age group will have separate areas within the building and outdoor play areas. Access to the property will be via S. 142nd Street where two travel lanes and sidewalks will be provided. Approximately 80 parking spaces will be added. An emergency vehicle and delivery vehicle access road will be provided via a gated connection with Showalter Middle School. LOCATION OF PROPOSAL: Foster High School: 4242 South 144th Street, Tukwila, WA 98168, Parcel No. 1523049108. Showalter Middle School: 4628 South 144th Street, Tukwila, WA 98168. Parcel No. 1523049108. Birth -to- Kindergarten Center: Vacant Property (undetermined situs), South 144th Street. Parcel No. 1523049164. All project sites are located in Section 15, Township 23, Range 4. ATTACHMENT D 103 PROPONENT AND LEAD AGENCY: Tukwila School District RESPONSIBLE OFFICIAL: Dr. Judith Berry, Deputy Superintendent & SEPA Official Tukwila School District 4640 South 144th Street Tukwila, WA 98168 berryj(7a,tukwila.wed net. edu The Responsible Official for the Tukwila School District hereby makes the following findings and conclusions based on a review of the environmental checklist and attachments (SEPA Checklist); other information on file with the District and City of Tukwila; and the policies designated by the Tukwila School District as a basis for the exercise of substantive authority under the Washington State Environmental Policy Act (SEPA) pursuant to RCW 43.21C.060. Copies of the documents pertaining to this SEPA MDNS are available for review at the District website at https: // tukwilaschools .org /wp- content/uploads /2017 /01 /SEPANOTICE2017.pdf, or during regular business hours at the Tukwila School District at the address listed above. FINDINGS OF FACT General 1. The SEPA Checklist was made available for public review and comment from January 19, 2017, through February 20, 2017. A Notice of SEPA Consultation was published in the Daily Journal of Commerce, posted on the site, and mailed to interested agencies, property owners, and residents within 500 feet of the property on January 19, 2017. Comments were received from the City Planning, Public Works, and Fire Departments. 2. The Foster High School and Showalter Middle School sites are currently operating as schools and the use will not change as a result of this proposal. The Birth -to- Kindergarten Site is currently District ballfields. Construction of the Foster High School Additions and New Birth -to- Kindergarten Center will begin in winter of 2018. Construction of Showalter Middle School Additions will begin in Spring of 2019. 3. The existing District technology building located on the Foster High School site will be demolished. Four portables (8 classrooms) on the Foster High School site and two portables on the Showalter Middle School site will also be removed. Earth 4. The Foster High School /Showalter Middle School parcel is relatively flat in grade and fully developed, and includes basic landscaping. The Birth -to- Kindergarten Center consists of a flat area with two ballfields and a heavily wooded /sloped area at the far east edge of the parcel. All sites have a thin layer of topsoil with a reworked layer of glacial till underneath that has likely been placed as fill from previous grading. The fill is loose to medium dense, silty sand, with gravel. Intact, dense glacial till was found underlying the fill. Site instability as a result of soils is not expected. 5. According to the City of Tukwila Sensitive Areas Map, small pockets of Type 2 slopes (between 15 and 40 percent) and Type 3 slopes (between 15 and 40 percent composed of relatively impermeable soils, or lopes over 40 percent). No development is proposed within these sensitive areas. 6. For the Foster High School Site there will be approximately 8,760 cubic yards of cut and 6,150 cubic yards of fill. For the Showalter Middle School site, the estimated cut and fill is less than 2,500 cubic yards of fill. For the New Birth -to- Kindergarten Center, there will be an estimated 12,000 cubic yards of cut and 2,000 cubic yards of fill. 7. Foster High School currently has an impervious surface coverage of 64 %, which will be slightly reduced to 63% upon completion. Showalter Middle School is currently 75% impervious and will not change. Birth -to- Kindergarten site is will be approximately 40% impervious upon completion. 104 Air 8. Construction activities could cause temporary increases in dust and emissions pollution. Post - construction emissions will be entirely related to vehicular and bus trips. The only new trips to the site are those associated with the Birth -to- Kindergarten Center. Water 9. There is no surface water body on or in the immediate vicinity of the property and it is not located within a floodplain. There will be no discharges to surface waters. 10. Stormwater management systems are designed in accordance with the 2016 King County Surface Water Design Manual. The source of stormwater runoff for Foster High School and Showalter Middle School will be from roofs, athletic fields /tennis courts /playgrounds, sidewalks and asphalt drive aisles /parking area. All stormwater will be managed onsite through collection, treatment and discharge to the City stormwater system. Some limited infiltration will occur. 11. For the Birth -to- Kindergarten site, the source of water runoff will be primarily just from the surface area of the proposed project. The surface runoff will be collected in a system of catch basins, and conveyed with pipes to an underground detention vault prior to being discharged through an existing surface mounted pipe on the east side of the site. Plants 12. Some trees will be removed along the Foster High School north boundary to grade the area for the tennis courts and ballfieds. Also trees will be removed for the planned improvements to S. 142nd Street and the eastern portion of the Birth to Kindergarten site. Trees to remain that are adjacent to the construction areas will be protected with a chain link fence surrounding the drip line. 13. No landscaping is proposed at the Showalter Middle School site. New landscaping at the Foster High School and Birth -to- Kindergarten sites will include native plants and /or drought resistant ornamentals. Landscaping will be provided within the new parking lot areas and portions of property perimeters. Animals 14. According to the Wash Dept. of Fish and Wildlife mapping services, there are no threatened or endangered animal species on or in the vicinity of the project site. Energy and Natural Resources 15. Energy conservation features include an energy management system (EMS) for monitoring energy use for lighting, HVAC and hot water. LED lighting with motion sensors will be used in classrooms and parking lots. The projects will meet requirements for Superior Energy Performance — Energy Star. The Birth -to- Kindergarten Center will be designed to maximize the use of natural daylight — thus reducing the electrical lighting needs. The Birth -to- Kindergarten Center is intended to be designed equivalent to LEED Silver. Environmental Health 16. No contaminated soils were found during testing. Hazardous Building Materials Survey (Hazmat) Reports were prepared. For Foster High School it concluded that there were no known contaminants or health hazards on the site. The technology building study founds some asbestos - containing materials and lead -based paint that is below EPA levels. Noise 17. On a short-term basis, some noise may be created by construction activity due to operation of equipment. Noise levels will not exceed the maximum permissible sound levels allowed per Tukwila Municipal Code (TMC) Chapter 8.22. 18. Long term noise will be typical of that associated with an elementary school, including vehicular and school bus noise, which is most prevalent at school start and stop times. Truck deliveries will be minimal. The noise of children at play in the outdoor areas will occur during various times throughout the school day. Noise associated with the fire alarm will occur from time to time. 105 Land and Shoreline Use 19. The properties are located in a neighborhood made up primarily of single family residential, with a mix of some high- density residential and institutional uses. To the west of the sites there are two apartment complexes and Foster Library. To the south, land uses are primarily single - family residential. To the east, land uses are primarily single - family residential and the Tukwila School District Administration Building. To the north of the sites, uses are primarily single- family residential and a large church property. 20. The sites are zoned as low density residential (LDR). A Public Recreation Overlay (PRO) covers a portion of the Foster High School and Showalter Middle School sites, and encompasses the Birth -to- Kindergarten site. 21. The Comprehensive Plan's Capital Facilities Chapter requires adequate public facilities to service development in the City, which would include facilities for public schools. The Tukwila Comprehensive Plan calls for growth, and new school facilities are needed to accommodate that growth. Capacity at the Foster High School site could grow (but is not forecasted for several years), and the proposed Birth -to- Kindergarten Center would provide service for up to 440 students. 22. Current employment at Foster High School and Showalter Middle School is 83 and 73, respectively, and will remain unchanged. The Birth -to- Kindergarten Center is expected to employ a staff of 46. Eighteen employees currently work at the onsite technology building, which will be demolished and relocated across the street at 4060 South 144th Street. As a result of this project, the overall school campus will have a net gain of 28 employees. Housing 23. There is no housing component to the projects. Aesthetics 24. Aesthetic enhancements include contextually sensitive building materials and increased interior and perimeter landscaping on all sites. The City of Tukwila's Board of Architectural Review will evaluate the architectural and site design attributes prior to approving the Conditional Use Permits. The projects will be required to adhere to the City's Design Standards. 25. Portions of Foster High School additions will be up to 35 feet; 5 feet above the maximum height allowed in the underlying Low Density Residential zone. Portions of the existing building are up to 65 feet in height. The applicant has applied for a zoning variance as part of the Conditional Use Permit. Light and Glare 26. Some light and glare are produced by lighting of the parking lot, pedestrian walkways, and sports fields after dark. Light fixtures will be shielded and cast downward. Lighting fixtures will be shielded and lighting will be cast downward to reduce light and glare impacts to adjacent properties. 27. Exterior lighting control system will utilize an astronomic timeclock based lighting control panel. To meet the Washington State energy code exterior lighting requirements, all exterior lights will be programmed to turn on at 100% light output from Dusk and will be automatically reduced to 50% light output during preselected time period or after midnight. 28. A photometric analysis was prepared which demonstrates that no more than 1 (one) footcandle of light will spill onto adjacent residential properties. Recreation 29. No recreational uses will be displaced. The existing baseball fields located on what will be the Birth - to- Kindergarten Center will be relocated to the Foster High School campus and will accommodate both baseball and softball uses. The existing tennis courts on the Foster High School campus will be repositioned onsite. Historic and cultural preservation 30. Foster High School was originally constructed in 1992 and has not had a significant renovation since. Showalter Middle School was originally built in 1936, with several additions and renovations since. 106 None of the buildings on the site were identified on the State of Washington Historic Property Inventory list or are eligible for listing in a preservation register due to the extent of modifications. Transportation 31. King County Metro Transit Route 128 provides bus service directly to the project site. 32. Parking at Foster High School is proposed to be reduced from 251 spaces to 174 spaces. Parking at Showalter Middle School will remain unchanged at 122 spaces. 80 spaces are proposed at the new Birth -to- Kindergarten Center. There are an additional 28 spaces on the school campus that may be available for special events. The applicant has applied for a parking variance as part of the Conditional Use Permit. 33. South 142nd Street from 43rd to 44th Streets will be extended to access the Birth -to- Kindergarten Center and will include two paved travel lanes and a sidewalk. A portion of the roadway from 44th Street to the Birth -to- Kindergarten Center will be located within a private easement. At the new Birth - to- Kindergarten Center, one of three emergency vehicle accesses and a delivery vehicle access road will be provided via a gated connection with Showalter Middle School. 34. The number of vehicular trips associated with Foster High School and Showalter Middle School will not change with the proposed project, including driveway locations. 35. Based on a Traffic Impact Analysis for the Birth -to- Kindergarten Center, The combination of new full - day kindergarten and birth to pre- kindergarten children are expected to generate as many as 1,000 to 1,154 average daily trips (depending on assumptions used), with 247 AM peak trips and 197 school PM peak -hour trips. Approximately 75 percent of the students are expected to be bused. Public Services 36. Public safety will be enhanced at Foster High School with the enclosure of the campus by new buildings, added fencing and controlled entrances. New security cameras and two personnel are being provided. A First Responder Antenna System will be implemented. Utilities 37. Utility providers are: a. Water: King County Water District #125 b. Sewer: Valley View Sewer c. Electricity: Seattle City Light d. Natural Gas: Puget Sound Energy e. Cable, Internet, and Telephone Service: Comcast CONCLUSION OF THE RESPONSIBLE OFFICIAL Tukwila School District has determined that the proposal, with the mitigation measures listed below, does not have a probable significant adverse impact on the environment, and an Environmental Impact Statement is not required under RCW 43.21c.030(2). The mitigation measures described below are recommended as conditions of project approval. This decision was made after review of a completed environmental checklist, other information on file with the Tukwila School District, and existing regulations. The responsible official finds this information reasonably sufficient to evaluate the environmental impacts of this proposal. MITIGATION MEASURES Earth 1. A Department of Ecology General Permit to Discharge Stormwater associated with construction activity will be obtained. 107 Air 2. A Temporary Erosion and Sediment Control Plan (TESC) and a Stormwater Pollution Prevention Plan ( SWPPP) to meet the 12 required elements per the National Pollutant Discharge Elimination System (NPDES) permit and the 2016 King County Surface Water Design Manual is required to be submitted with the Site Development Permits. Specific measures to reduce or control erosion include various Best Management Practices (BMPs), such as plastic sheeting, hydroseeding /straw, check dams, catch basin inserts, and silt fencing. The contractor will implement a system to meet turbidity discharge and National Pollutant Discharge Elimination System (NPDES) requirements. 3. The contractor will implement, inspect, and maintain all Best Management Practices (BMPs) on a regular basis. Inspection and maintenance records will be kept onsite. 4. Design and construction will be implemented consistent with the recommendations of the Geotechnical Engineering Reports for both the Foster High School and Birth -to- Kindergarten sites, prepared by Shannon & Wilson, Inc., dated September 6, 2016. Shannon & Wilson, Inc. shall review plans prior to final design completion to ensure earthwork and foundation recommendations are properly interpreted and implemented. 5. Showalter Middle School shall prepare a geotechnical engineering report prepared by a qualified geotechnical engineer prior to obtaining site development or building permits. The proposed improvements will be completed consistent with the geotechnical engineer's recommendations. 6. Dust control BMPs are to be implemented to minimize dust during construction. They include using water sprays or other non -toxic dust control methods on unpaved roadways, minimizing vehicle speed while traveling on unpaved surfaces, preventing the tracking out of mud onto public streets, covering soil piles when practical, and minimizing work during periods of high winds. 7. To minimize air quality and odor issues caused by tailpipe emissions, required BMPs include maintaining engines of construction equipment and minimizing the idling of construction equipment. After construction, during school bus loading and unloading times, buses are to be turned off to limit emissions caused by idling. 8. Materials stored on site (e.g., soil, fertilizer, and pesticides) will be enclosed and /or covered when not in use. The applicant will employ BMPs in the use and storage of these materials consistent with all applicable regulations. 9. Demolition activities will comply with the requirements of the demolition permit for dust control. Water 10. As noted above, the proposed improvements will utilize storm drainage systems designed in accordance with the 2016 King County Surface Water Design Manual. During construction, a SWPPP and associated BMPs will be implemented to manage stormwater properly. I Plants 11. Clearing limits will be marked with protective fencing prior to clearing and grading activities. 12. A 6 -foot high temporary chain link fence must be placed outside the dripline of the trees to be retained prior to the commencement of demolition and earthwork. 13. An Arborist Report will be provided early May 2017 detailing the health of the trees located along the perimeter of the Birth to Kindergarten Center. Any unhealthy or unsafe trees will be removed based upon a recommendation by the arborist and approval from the City. Environmental Health 14. The hazardous building materials in the technology building will need to be abated prior to demolition and must follow City and State regulations. 15. If destructive demolition identifies hidden or previously unknown asbestos, the Department of Occupational Safety and Health (DOSH) requires that the asbestos - containing material be removed by trained and licensed contractors using certified asbestos abatement workers and supervisors. A 10 -day notification is also required before abatement can begin. Noise 16. Noise impacts associated with the construction of the project will be limited in duration, consistent with City of Tukwila Chapter 8.22 of the Tukwila Municipal Code (Noise). Construction hours will be limited to 7 AM -8 PM Monday through Friday and 8 AM — 6 PM Saturday, Sunday and State - recognized holidays. Temporary noise impacts outside of the daytime hours will require approval of a variance, per TMC 8.22.120. 17. To mitigate noise impacts during the construction phases, measures such as locating stationary equipment away from receiving properties, erecting portable noise barriers around loud stationary equipment, turning off idling construction equipment, requiring contractors to maintain all equipment, and training construction crews to avoid unnecessarily loud actions near noise - sensitive areas shall be employed. 18. Once the school is under operation, school buses shall be turned off during the load /unload periods to limit idling. 19. Outdoor sporting activities will conclude by 10:00 p.m. Aesthetics 20. A zoning variance shall be secured to allow additions to Foster High School to exceed the zoning code maximum of 30 feet by 2 feet, and to allow the relocation of the flagpole in the stadium to a maximum of 50 feet. 21. The project will require a Conditional Use Permit and Design Review approval by the City Board of Architectural Review. That process will evaluate the architectural details and compliance with City design standards. Light and Glare 22. Use full cut -off light fixtures and aim fixtures to direct light downward to minimize light trespass. Historic and Cultural Preservation 23. If cultural or archeological objects are found during site preparation work, the City and Washington State Department of Archaeology and Historic Preservation will be notified, and appropriate measures will be taken. I Transportation 24. The Schools and District will coordinate the scheduling of special events so that they do not overlap. 25. Bell schedules for the Birth to Kindergarten Center and Showalter Middle School will be staggered to ensure emergency vehicle access is not compromised by simultaneous queuing. 26. A haul route control plan will be prepared and approved by the City of Tukwila prior to the start of construction. 27. To ensure parking is adequate at Foster High School, a zoning variance shall be secure to allow for a reduction to 174 spaces onsite, pursuant to a Type III procedure. 28. A Transportation Impact Fee applies to the future Birth -to- Kindergarten Center Building permit. (PW Bulletin A3). Transportation Impact Fee will be based on 440 students in Zone 3 at $119.31 per student = $52,496.40. The final amount to be confirmed by the City Engineer at a future date. This Mitigated Determination of Non - significance (MDNS) is issued under the Washington Administrative Code (WAC) 197 -11- 340(2); the lead agency will not act on this proposal for 14 days from the date of issuance. Only written comments will be accepted and must be submitted by 5:00 pm on May 23, 2017 to the District contact. There is no agency appeal of this MDNS. Appeals are governed by RCW 43.21C.075. SEPA Responsible Official Signature: Issue Date: May 9, 2017 Last Day to Comment: May 23, 2017 110 Dr. Judith Berry, D uty Srintendent Tukwila School trict 4640 South 144th Street Tukwila, WA 98168 berryiC@tukwila.wednet.edu '17 1Lq �'qs City of Tukwila o � y y 6200 Southcenter Boulevard p Tukwila Washington 98188 N 2 12061433 -1800 • 1906 • Gary L. VanDusen, Mayor STAFF REPORT TO THE PLANNING COMMISSION AND BOARD OF ARCHITECTURAL REVIEW Prepared August 16,1989 HEARING DATE: August 24, 1989 FILE NUMBERS: 89- 1 -SPE: Foster High School 89 -7 -DR: 89 -1 -CUP: APPLICANT: South Central School District # 406 REQUEST: There are (3) separate requests for the Proposed Foster High School Complex: 1. A cooperative parking agreement 2. Design Review 3. Conditional Use Permit LOCATION: 4242 South 144th Street (N.E. corner of 42nd Avenue South and South 144th Street) ACREAGE: 12.4 acres COMPREHENSIVE PLAN DESIGNATION: Public Facilities ZONING DISTRICT: SEPA DETERMINATION ATTACHMENTS: R -1- 7200 Single Family Residential A Determination of Non - Significance was issued by School District No. 406 on May 11, 1989. A. Site Plan B. Elevations C. Elevations, Sheet 2 D. Landscape Plan E. Utilities & Grading Plan F. Site Lighting Plan G. Parking Report ATTACHMENT E 111 STAFF REPORT to th( Planning Commission FINDINGS VICINITY /SITE INFORMATION 8("' SPE, 89 -7 -DR, 89 -1 -CUP: FOSTER HIGH SCHOOL Page 2 1. Project Description: Construction of two main structures which will house administrative, classroom, shop, athletic, and auditorium functions. Also included is the renovation of parking lots, bus loading areas, and landscaping. 2. Existing Development: A multi- structure (one and two - story) high school complex. 3. Surrounding Land Uses: West — vacant land (zoned R -1 7200), two apartment buildings (Normandy Apartments, The Samsera) North — single family residences, church (St. Thomas Catholic Church) East — school (Showalter Middle School) South — single family residences, fire station 4. Terrain: The site is essentially flat except for the southeastern portion which rises approximately fifteen feet (15') in elevation above the remainder of the site in the vicinity of the indoor swimming pool. Slopes on the proposed site do not exceed ten percent (10 %). GENERAL BACKGROUND The South Central School District # 406 is proposing to demolish and replace a substantial portion of the existing Foster High School Complex. When the high school was constructed in 1952, one of the primary building materials used in the construction was asbestos. Development of the existing school site consists of a several separate structures: one and two -story classrooms, a gymnasium, an indoor swimming pool, a library, and a stadium. Also located on the site are a ball field, (4) tennis courts, a stadium and covered stands and several parking areas. Only the Foster High School facilities are included on the 12.4 acre site. The entire school district property which includes both the high school and the middle school is 34 acres. Portions of both the proposed west and east wing structures although exceeding the thirty foot (301 height limitation are exempt from the height requirement because they are classified as non - habitable under provisions of the TMC (18.50.080): the mechanical space in the west and east wings and the fly loft area (loft over and behind the stage) of the auditorium in the east wing. The Board of Adjustment granted to the School District several variances (from 5 feet to 15 feet) on July 6, 1989. 112 STAFF REPORT to th 5 It -SPE, 89 -7 -DR, 89 -1 -CUP: Planning Commission FOSTER HIGH SCHOOL Page 3 The proposed auditorium shown on the site plan is to become a joint use facility which will house not only high school related events, but community sponsored public performances as well. 113 STAFF REPORT to the Planning Commission' 8(* f-SPE, 89-7-DR, 89-1-CUP: FOSTER HIGH SCHOOL Page 4 I COOPERATIVE PARKING AGREEMENT I FINDINGS DISCUSSION The current site provides for approximately 160 parking stalls for both the high school and the library. Based upon comments from the School District and trans- portation consultant's report (Attachment G, by Stephen B. Lovell and Associates, dated July 18, 1989), the existing parking facility appears to be under-utilized. The existing facility is designed for 600 students. The current enrollment is approx- imately 420 students and approximately 50 teachers and administrative personnel. The enrollment is not expected to appreciably increase soon. The site plans shows a total of 376 parking stalls. The School District is proposing to construct 282 with 62 shown on-site as future parking (to be constructed when the need arises). There are 32 parking stalls available at the Showalter school during the evenings when it is not in session or sponsoring an evening social function. The 376 parking stalls are distributed as follows: On-site Off -site North parking lot East parking lot Visitor parking lot Bus lanes parking Future parking lot Sub-total 112 stalls 144 stalls 10 stalls 16 stalls 62 stalls 344 stalls Showalter Middle School 32 stalls TOTAL 376 stalls The proposed high school facility is designed to have an enrollment of 604 students, 70 teachers and administrative personnel, and. expected to have not more than 5 visitors at any one time during the school day. Based upon the current zoning code, 1279 on-site parking stalls would need to be provided if each use contained within the proposed high school complex were pro- vided for. The amount of land necessary to provide surface parking for 1279 parking stalls is approximately 14.68 acres (6 500 SF/parking stall). The analysis of the required parking (per TMC 18.56.050) is as follows: 114 STAFF REPORT to th( Planning Commission Proposed Maximum School Enrollment 8( -SPE, 89 -7 -DR, 89- 1 -CLTP: FOSTER HIGH SCHOOL Page 5 604 students 242 stalls 70 teachers and 70 stalls administrative personnel 5 visitors (at any one 2 stalls time during the day) Library 10 stalls. TOTAL 324 stalls Existing School Enrollment 420 students 168 stalls 50 teachers and 50 stalls administrative personnel 5 visitors (at any one 2 stalls time during the day) Library 10 stalls TOTAL 230 stalls CONCLUSIONS :3 1. The primary use of the complex is the high school education facility which is predominantly a daytime use. 2. The most intense use of the auditorium, gymnasium, stadium, and swimming pool facilities occur during primarily during the evening hours. 3. Although designed for approximately 600 students, the current enrollment for the existing high school is approximately 420 students and is not expected to increase in the near future. The existing parking lot (with approximately 160 parking stalls) is considerably under utilized. 4. The only occasions when the proposed 282 parking stalls would not be adequate is in the evenings when for example the stadium or the auditorium was being used to full capacity. 5. Unless the School District experiences substantially increased enrollment, the proposed 282 parking stalls is more than adequate for the anticipated parking demand. 6. The School District is the owner of the total property (they lease to the County for their swimming pool facility) and is able to coordinate scheduling of the various activities /events which use the auditorium, gymnasium, stadium, and the swimming pool. 115 STAFF REPORT to tl Planning Commission" 8 SPE, 89 -7 -DR, 89- 1-CUP: FOSTER HIGH SCHOOL Page 6 RECOMMENDATIONS The Community Development staff recommends approval of the Cooperative Park- ing Agreement proposal. The Agreement shall. be reviewed by the Community Development Director. The Agreement to be signed by the City and the School District Superintendent, Principal of Foster High School, Principal of Showalter Middle. School, and the Manager of the King County Swimming Pool facility and must contain the following provisions: 1. When activities /events are scheduled in such a manner as to require the simultaneous use of any combination of the high school complex facilities and thereby potentially generate parking demand which will exceed the on -site 282 parking stalls, the School District shall provide necessary staffing and signs to direct traffic to nearby designated overflow parking locations. Failure on the part of the School District to do so may cause rescission of this agreement. 2. If there is a demonstrated consistent daytime (high school use) parking demand which exceeds the on -site 282 parking stall capacity for the high school use, the matter shall be reviewed at a public hearing, before the Planning Commission. The Planning Commission may at that time require the School district to construct the additional on -site parking (as shown on ' the site plan as future parking) in a reasonable period of time. 116 STAFF REPORT to tl Planning Commission II DESIGN REVIEW FINDINGS DISCUSSION ' -SPE, 89 -7 -DR, 89 -1 -CUP: FOSTER HIGH SCHOOL Page 7 TMC 18.60.030 also requires Board of Architectural Review of the specific design of the proposed high school complex and landscaping. The Design Review guidelines are printed bold followed by pertinent findings of fact. 18.60.050: GENERAL REVIEW CRITERIA 1. Relationship of Structure to Site a. The site should be planned to accomplish a desirable transition with streetscape and to provide for adequate landscaping and pedestrian movements. b. Parking and service areas should be located, designed and screened to moderate the visual impact of large paved areas. C. The height and scale of each building should be considered in relation to the site. a. Streetscape, landscaping, pedestrians Within the limitations of a small site, the applicant has setback the (2) struc- tures from the property line (48 feet and 42 feet) and preserved open space for needed outdoor facilities. The street setbacks allow for the inclusion of land- scaping features (trees, lawn) to create a pleasant transition for both pedestrians and adjoining development. The proposed landscaping along both public streets matches the existing land- scaping and the linear spacing of the London Plane trees will provide a pleasing rhythm. To provide for pedestrian movement, the applicant is proposing to add a 5 -foot wide sidewalk for the entire length of the property along 42nd Avenue S.E. b. Parking, service areas Parking is separated into two areas. The future parking area is located logically adjacent to the auditorium, gymnasium, indoor swimming pool, and stadium. Both parking areas have considerable depth from the public streets, thereby minimizing the amount of frontage exposure. Both parking areas are land- scaped within the interior areas as well as in perimeter areas where the land- scaping will soften the appearance of the parking areas from exposure to the public streets. 117 STAFF REPORT to tk_ 8; -SPE, 89 -7 -DR, 89 -1 -CUP: Planning Commission FOSTER HIGH SCHOOL Page 8 The bus load areas are separate from the parking (therefore not disrupting traffic movement in the parking areas) and located off - street and convenient to the buildings. c. Height, scale Due to the variety of facilities contained within the proposed high school com- plex, the (2) structures vary in height. The applicant has placed those taller portions of the structures away from the perimeter of the site where possible. The facades of the (2) structures (particularly those portions along the street frontage) and the proposed exterior materials are compatible with adjoining residential development. Although the exterior walls facing both public streets are straight with no offsets (approximately 225 feet along 42nd Avenue SE and a 255 foot section along 144th Street SE), the texture of the brick and the proposed design of the brickwork together with the supplemental landscaping soften the appearance of the two-story structures. 2. Relationship of Structure and Site to Adjoining Area a. Harmony on texture, lines and masses is encouraged. b. Appropriate Iandscape transition to adjoining properties should be pro- vided. c. Public buildings and structures should be consistent with established neighborhood character. d. Compatibility of vehicular pedestrian circulation patterns and loading facilities in terms of safety, efficiency and convenience should be encour- aged. e. Compatibility of on -site vehicular circulation with street circulation should be encouraged. A high school is a unique use which is permitted in residential zones subject to Design Review and receiving a Conditional Use Permit. The needed floor area has been provided using two separate structures instead of a large, single struc- ture. The proposed design also includes both the use of brick on the exterior as well as the peak roof form help to soften the appearance of the large building facades. In addition, the two structures are setback an additional (12) feet (along 144th Street SE) and (18) feet (along 42nd Avenue SE) and utilize landscaping to provide transition from the street to the buildings. The main entrance (pedestrian) to the proposed high school is through a large landscaped entry court at the southwest corner of the site. The wide pedestrian concourse separating the two buildings leads the students from the entry court at the intersection of the two public streets into either building. The use of the wide concourse also provides another viewpoint to residents and others pass- ing by from which to view the structures adding additional visual variety. 118 STAFF REPORT to tr( 8, ,•SPE, 89 -7 -DR, 89 -1 -CUP: Planning Commission FOSTER HIGH SCHOOL Page 9 The main entrances to the gymnasium and auditorium facilities have been located near the east parking area where most the participants will be arriving. 3. Landscaping and Site Treatment a. Where existing topographic patterns contribute to beauty and utility of a development, they should be recognized, preserved and enhanced. b. Grades of walks, parking spaces, terraces and other paved areas should promote safety and provide an inviting and stable appearance. c. Landscape treatment should enhance architectural features, strengthen vistas and important axis, and provide shade. d. In locations where plants will be susceptible to injury by pedestrian or motor traffic, mitigating steps should be taken. e. Where building sites limit planting, the placement of trees or shrubs in paved areas is encouraged. f. Screening of service yards, and other places which tend to be unsightly, should be accomplished by the use of walls, fencing, planting or combina- tion. g. In areas where general planting will not prosper, other materials such as fences, walls and and paving s of wood, brick, stone or gravel may be used. h. Exterior lighting when used, should enhance the building design and the adjoining landscape. Lighting standards and fixtures should be of a design and size compatible with the building and adjacent area. Lighting should be shielded, and restrained in design. Excessive brightness and brilliant colors should be avoided. The applicant has proposed the addition of London Plane trees to match the existing street landscaping and reinforcing the unity of the character of the (2) public streets (42nd and 144th). The proximity of the parking area (east of the library) and the appearance of structures and the activities as seen from the adjoining residential development on the north perimeter of the site are softened by the use of landscaping (trees, shrubs, and ground cover). The proposed massing of landscaping (trees, shrubs, ground cover, lawn) at the southwest corner of the site reinforces the entry's importance in the overall site design. In addition, this area at various times of the day will be an area of heightened activity so that the massing of the trees will create a pleasing transition for both students approach the walkway to enter either of the tall structures and resi- dents walking past this area. A focal point has been created at the end of the walkway (to the northeast) by the landscaping along the exterior walls and that which is massed at the outdoor gathering area. The third area where landscaping has been appropriately massed is near the vehicular and pedestrian entrance to the east end of the activities building which houses both the auditorium and the gymnasium, both very "public" facilities which will be utilized often in the evenings. 119 STAFF REPORT to tl( Planning Commission 8( .,'•SPE, 89 -7 -DR, 89 -1 -CUP: FOSTER HIGH SCHOOL Page 10 The interior of the parking areas contains adequate landscaping except for the pedestrian walkway area. 4. BUILDING DESIGN a. Architectural style is not restricted, evaluation of a project should be based on quality of its design and relationship to its surroundings. b. Buildings should be to appropriate scale and in harmony with permanent neighboring developments. C. Building components- such as windows, doors, eaves, and parapets should have good proportions and relationship to one another. Building com- ponents and ancillary parts shall be consistent with anticipated life of structure. d. Colors should be harmonious, with bright or brilliant colors used only for accent. e. Mechanical equipment or other utility hardware on roof, ground or build- ings should be screened from view. f. Exterior lighting should be part of the architectural concept. Fixtures, standards, and all exposed accessories should be harmonious with build- ing design. g. Monotony of design in single or multiple building projects should be avoided. Variety of detail, form and siting should be used to provide visual interest. The (2) structures while housing substantially different activities are harmon- ious in design. They are separated approximately 55 feet by a wide, paved out- door walkway between the (2) structures which provides for both pedestrians as well as service (and if necessary, emergency) vehicles. They are linked by an enclosed second story walkway which provides protection during cold and /or inclement weather. The peak roof design, while adding to the height of the structures along both public streets, does soften the traditional "institutional" appearance typically associated structures of this type and size. In addition, the variety of heights in the (2) structures and types of coverings (the canopy over the second story interior walkways) also provide visual interest and avoid the "institutional' appearance. The mechanical equipment is concealed beneath the peaked roof portions of the (2) structures. The use of brick on the street facades (42nd and 144th) provide a measure of compatibility with both existing and future residential development. The predominant earthtone colors of the brick veneer (brown, red, and tan with a blue accent) and stucco (light tan or gray) and the off -white color of the metal roof will be harmonious and compatible with existing residential develop- ment. (Color renderings with specific details on the colors have been submit- ted and will be available at the public hearing.) 120 STAFF REPORT to tK Planning Commission Er,, 89 -7 -DR, 89 -1 -CLIP: FOSTER HIGH SCHOOL Page 11 Exterior lighting will be provided on standards which range in height from 25 to 40 feet. The exterior lighting plan shows lighting which will provide for both public safety (along the main pedestrian entry between the (2) structures; parking areas; tennis courts) and visual interest (exterior lighting of facades along both public streets (42nd and 144th). Typical lighting for the tennis courts has been provided. CONCLUSIONS The conclusions are grouped under the four design review guidelines. 1. Relationship of Structure to Site The proposed structures, which consolidate several activity areas previously disbursed on the site, visually simplify the appearance of the site and are com- plimentary to each other. The location of the structures "anchor" the primary focal point of the site and because they occupy similar positions to the existing structures on the site minimize disruption to the other portions of the site (e.g. playfields, parking areas). 2. Relationship of Structure and Site to Adjoining Area The proposed sidewalk along 42nd Avenue SE will allow for improved pedes- trian movement. The setbacks are generous enough to create a comfortable pedestrian environment and yet not overburden the open space on the remaining site area. The use of the brick together with the pattern and color of the brickwork help to soften the appearance of the long, straight walls to the general public. The fly loft portion of the auditorium has be located away from the perimeter of the site to reduce it's impact. The exterior lighting is generally adequate, however, the staff feels that some conditions are warranted to mitigate potential impact of the proposed lighting on the adjoining properties where lighting distribution may be an issue. See Conditions 2a., 2b., and 2c. No details for the specific design of the fixtures was included in the submittal, so Condition 2d was added. I Landscaping and Site Treatment Generally, the landscaping is adequate to excellent. In general, the massing of the trees reinforce the main entries into the buildings. Retention of and the addition to the existing street trees helps to unify a large site and soften the impact of two-story structures to both pedestrians and adjoining properties. Several areas, however, should be enhanced with additional plant materials to further define edges and /or clarify specific activity areas of the site. In addition, the use of London Plane trees can cause upheaval of pavement if improperly 121 STAFF REPORT to tl 8; '-SPE, 89 -7 -DR, 89 -1 -CUP: Planning Commission FOSTER HIGH SCHOOL Page 12 planted. Therefore, Condition 3f has been added. See Conditions 3a., 3b., 3c., 3d., 3e., and 3f. Generally, the provisions for pedestrian movement are excellent. The provi- sion of a public sidewalk on 42nd Avenue SE provides the general public as well as the students with needed pedestrian circulation. The staff feels that additional enhancement of the pedestrian facilities is warranted. See Condi- tions la and lb. 4. Building Design The applicant has presented plans for a high school complex which is a con- siderable improvement over the existing facility. The use of two structures housing the academic and activity centers allow for more architectural variety than a single structure. Both structures relate well to the wide pedestrian promenade which separates them. The peaked roof, the vaulted skylights over the interior walkways, and the fly loft portion of the auditorium (the space in a theater, above and behind the stage in which scenery is hung) provide addi- tional visual interest to the building. The proposed development plans did not show any provision for exterior trash receptacles so condition 5 has been added to the Recommendations section of this Staff report. RECOMMENDATIONS The Community Development staff recommends approval of the Design Review application subject to the following conditions: 1. Prior to issuance of a building permit, the applicant shall submit for review and approval of the Community Development Department a revised site plan showing: a. An enhanced pedestrian crossing with a differentiated surface (raised pavement, contrasting material) at the north end of the bus load area (along 42nd Avenue SE) between the public sidewalk and the bus load area. b. An enhanced pedestrian. crossing with a differentiated surface (raised pavement, contrasting material) at either end of the pedestrian walkway (between the auditorium and the existing indoor swimming pool facility) in the eastern parking lot. 2. Prior to issuance of a building permit, the applicant shall submit for review and approval of the Community Development Department a site lighting plan showing: 122 STAFF REPORT to tl{ 5 .SPE, 89 -7 -DR, 89 -1 -CUP: Planning Commission FOSTER HIGH SCHOOL Page 13 a. Reduce wattage of the fixtures used in the parking lot lighting (Type "C" fixtures) to 250 watts unless there is satisfactory evidence provided that the 400 watt fixtures are necessary for public safety. b. Restriction of the lighting distribution to within the property boundaries of the site c. Statement on the drawing which indicates the use of the tennis court lighting shall be restricted to no later than ten p.m. d. Information on the specific exterior lighting fixtures. 3. Prior to issuance of a building permit, the applicant shall submit for review and approval of the Community Development Department revised landscaping plans showing: a. Additional landscaping (trees, groundcover) along the pedestrian walkway (between the auditorium and the existing indoor swimming pool facility) in the eastern parking lot. b. The addition of three trees to be located within the lawn area along 144th Street South (next to bus load area). c. The addition of a minimum of 3 trees to be located within the lawn area located along 42nd Avenue SE. d. A minimum of 24 inch shrubs along the east perimeter of north parking lot (next to athletic fields). e. Substitution of 36 inch for 24 inch shrubs (laurel shown) in locations where used between site perimeter and adjoining parking stalls. f. Landscaping specifications for the planting of the London Plane trees will be reviewed in detail and must include a 3 -foot minimum planting dis- tance of 3 feet back of curb with a trench for each tree to be a minimum of 4 feet deep, 5 feet wide, and 10 feet long. Special soil mix may be required at the time of building permit issuance. 4. The height of the (2) earth berms located at the southwest corner of the site and within the vision triangle area ((south and west of the visitor parking area) shall not exceed (3) feet in height above street grade. 5. Prior to issuance of a building permit, the applicant shall submit for review and approval by the Community Development Department plans showing the location and screening details for exterior trash receptacles. 123 STAFF REPORT to tl 8`, .�-SPE, 89 -7 -DR, 89 -1 -CUP: Planning Commission FOSTER HIGH SCHOOL Page 14 III CONDITIONAL USE PERMIT FINDINGS INTRODUCTION TMC 18.12.050 and 18.64.040 require public review of the proposed high school renovation as a Conditional Use and approval by the City Council. The existing high school complex has previously received a Conditional Use Permit from King County. There is no proposed increase in enrollment for the high school. Except for the auditorium portion of the proposed high school complex, development plans represent replacement facilities for the high school. Therefore, the content of this staff report is limited to a review of the auditorium facility portion of the proposed high school complex and acts as an "umbrella" permit by incorporating the conditions of the Cooperative Parking Agreement; Design Review, and Conditional Use Permit by reference. DECISION CRITERIA The following criteria in Section 18.64.050 of the TMC shall be used by the Planning Commission in granting a Conditional Use Permit: A. The proposed use will not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity of the proposed use or in the district in which the subject property is situated. High schools are unique uses and are permitted in residential zones subject to Conditional Use Permit approval. Although the size and scale of a typical high school facility normally exceed those of adjoining residential structures, the proposed auditorium is a normal feature of a high school facility. The activity building (housing the auditorium) has been set back from the property line and the auditorium has been located within the building away from the site perimeter so that it will not be injurious to adjoining properties nor materially detrimental to the public welfare. Reconstruction of the high school is a public benefit because of the need to protect public health by removing harmful asbestos. The approval of the proposed development plans together with the attached conditions for the Conditional Use Permit application minimize possible adverse impacts on the area in which it is located. 124 STAFF REPORT to tl( 8( . �SPE, 89 -7 -DR, 89 -1 -CUP: Planning Commission FOSTER HIGH SCHOOL Page 15 B. The proposed use shall meet or exceed the performance standards that are required in the district it will occupy. The proposed development plans for the high school complex together with the approved variances and the attached conditions meet the performance standards in the R -1- 7200 zoning district. G The proposed development shall be compatible generally with the surrounding land uses in terms of traffic and pedestrian circulation, building and site design. Although the auditorium (it represents only a portion of the activities building or east wing) exceeds 30 feet in height, the auditorium has been set back from the public street (144th Avenue S.) to minimize any impact to adjoining properties. It is also over 300 feet from the north property line and about 400 feet from the west property line. The needed floor area for the entire high school complex was divided into two structures to reduce the overall bulk of a single structure. While the activities building is a large structure, an effort has been made to minimize the impact of the structure from adjoining properties by several design features: use of a brick veneer exterior with a variegated color pattern to the brickwork, a peak roof for the portion of the structure between the auditorium and the street, and landscaping to further soften the south elevation. The proposed development plans will allow the continued use of the high school complex which was constructed in 1952. The overall proposed high school use has not been expanded in terms of enrollment and is not anticipated to substantially increase traffic and pedestrian circulation or impacts from the building and site design. The proposed auditorium does represent an expan- sion of the existing auditorium facility. However, the proposed expansion is not expected to generate significantly greater traffic volumes or impacts from the auditorium and site design. D. The proposed use shall be in keeping with the goals and policies of the com- prehensive land use policy plan. The provision of the expanded auditorium for joint -use by the school district and the community is supported by policies 2 and 5 of the Open Space Element of the Land Use Policy Plan. Although not specifically a land use policy, the replacement of the high school complex mitigates a public health problem (asbestos) present in -the existing high school. 125 STAFF REPORT to t x -SPE, 89 -7 -DR, 89 -1 -CUP: Planning Commissio FOSTER HIGH SCHOOL Page 16 E. All measures have been taken to minimize the possible adverse impacts which the proposed use may have on the area in .which it is located. The proposed development plans together with the attached conditions mini- mize the possible adverse impacts which the proposed, use may have on the surrounding area. CONCLUSIONS 1. The proposed full-sized auditorium facility with fly loft and other performance features is a facility normally found in newer high schools. 2. The auditorium facility has been well located to minimize impact to adjoining properties while easily accessible to pedestrians walking to the facility and those which come by automobile. 3. The proposed auditorium will be a public benefit to the community as a whole. 4. The proposed high school complex has been granted a Variance and the staff has recommended approvals for both the required Cooperative Parking Agreement (including Conditions 1 and 2) and the Design Review to the Board of Architectural Review (including Conditions 1 through 5). All of the issues and concerns regarding impact of the proposed. high school to the adjoining areas which normally would be part of the Conditional Use Staff Report have been evaluated and addressed in the Staff Report for the Design Review appli- cation. RECOMMENDATIONS The Community Development staff recommends approval of the Conditional Use Permit application. 1 lI i I I �I • 1 J, I ©4 —_` it Cali e I - �itiiii �RAe j Ik a a . i la i6 i ° .a REPLACEMENT OF FOSTER HIGH SCHOOL r. ..ro •.� •�, a . i la i6 127 (JP ° REPLACEMENT OF FOSTER HIGH SCHOOL ..ro •.� •�, wutnertttw.eroaortnet.r ARCHITECTS _ PLANNERS. AIA tuRtttlA w.rtt�ttw w �urwnu,tum ur.t w�.nwe�utwwt.r 127 A , A4 I , im- gam 1• ir -I� I 1 1 1 Irt' i 1 1 ,I r 1 s 1 ° ��• ,III' I 1^ ° P' �A. Q 1 I. 1 c' i r' 4 f ab Im a. .1 `!� {_I1111111 1111�1�1�111�1�1�111 1 { {' III 1,I Ilk Fm 1� ■ IIII i I.I. i 1 i i 130 I if Psi SCON Icy +' 1�1 -- .1111 1111 ` ii -- Igl 1111 111! BM CWkR " °""." "• M"CBMff.OF FOSTER FM SC OM ARCHITECTS i PLANN Nn" �M EKS, AU . uorur..iwmoum �na.rn. �.wr�ucwwu,r .. . LI� i 1R II I. i ,b� 7�. law 6-- —fry—L It 0 .0 z III fill 131 B MR 1r/CA VLR /V /a FOSTER HW SCHODL SCWEPAATIC Oesi&4 uTu'nE5 AM GRAPM5 131 11 ing .E 132 r ,I ," l � � • v �'r/.��'; � i� i i �� iii ��� T7 UL !.1 , j' Q,% (cup I I I REPLACEMENT OF FOSTER HIGH SCHOOL KYM pMif4 K"00� pfffCr I_f ARCh11TECi5 b PUNNERS. AIA rfawA w�wwrfrff Tree Inventory and Disposition for BY Project- Tukwila School District The following tree inventory and disposition is based off of, and supplemental to, site plans provided by NAC architecture. In most cases trees scheduled for removal are being removed because of proximity to buildings, or construction disturbances, and where noted will be removed for safety concerns. The dispositions were taken by use of a basic visual assessment, and the inspection was non - invasive. Many trunks were heavily obscured by ivy and undergrowth. The assessment time frame is one year from commencement of fieldwork, and whole or partial failure of tree parts is based on the probability of failure under normal wind and rain conditions. Brandan Kriegel ISA Arborist PN7550A ISA Tree Risk Assessment Qualified Arborist 206 293 1869 Vitalitree Arborist Collective vitall *9021b ATTACHMENT F 133 134 FOSTER HIGH SCHOOL A POJ7ON OF THE $W 114 OF ?WE 55 1/4 OF SEC, f5. TWIN 23 N, NOE 045. W44 CITY OF TUKWILA, KING CCVNTY, WASHINGTON 5,14- M.1. *PEI T ai 0000 'Hof kX4 FOSTER HIGH SCHOOL W 114 / , 1 _ ._e CITY OF TU TY WASHING W 0000 B2K Inventory — From Sheet 7 1) *Bitter cherry, Prunus emarginata, 6" DBH x 25', Retain. Mild phototropism with self corrected top, common in species. No noted concerns. *Bitter cherry, Prunus emarginata, 8 "x30', Retain. Mild phototropism towards lawn is common in species. Self corrected top and relatively small size in addition to shared wind load characteristics with adjacent trees in same cluster, no noted concerns. *Bitter cherry, Prunus emarginata, 6 "x25',Retain. No noted concerns, enjoys production from neighboring trees from wind conditions. *Bitter cherry, Prunus emarginata, 8 "x30', Retain. Mild phototropism away from proposed lawn area is common in species, and top is self corrected. *Bitter cherry, Prunus emarginata, 8 "x2x25', Retain. Mild phototropism with self corrected top. No noted concerns. *Bitter cherry, Prunus emarginata, 6 "x25', Retain. Small diameter tree with mild and common phototropism, well protected by surrounding Prunus stems. *Big Leaf Maple, Acer macrophyllum, 6 "x30', Remove. Tropism towards potential targets in lawn area with higher species profile failure rates than neighboring Prunus emarginata stems, greater genetic potential, and aggressive growth rate. 2) *Black locus, Robinia pseudoacacia, 8 "x40', Remove. Trees encroach on to proposed lawn area and are. outside of the protection of nearby trees and proposed plantings, making them more likely to impact a target in the event of failure. • Black locus, Robinia pseudoacacia, 10 "x45', Remove for same reasons as above. *Black locus, Robinia pseudoacacia, 10 "x45', Remove for same reasons as above. 3) *Willow, Salix species, 6 "x5x24', Remove. Tree has one failed stem, and one dead stem, remaining stem has approximately 15% dead branches and exhibits poor form. 4) • Silver poplar, Populus alba, 16 "x35'. Remove. 15 degree tropism towards garden area with half of canopy in strike zone in event of failure. 5) • Black locus, Robinia pseudoacacia,6 "x42'. Retain. Very small, near full protection of wind loads from other trees and same cluster. 6) *Black locus, Robinia pseudoacacia, 14 "x50'. Retain. Mild phototropism developed growing away from larger row of trees off of site, with self- corrected top. 7) *Black locus, Robinia pseudoacacia, 12 "x45'. Retain. Tree exhibits no noted concerns, and healthy canopy, but may be removed to accommodate establishing proposed landscape trees by improving light conditions for 2 nearby intended deciduous plantings. 137 8) *Black locus, Robinia pseudoacacia, 12 "x45'. Retain. Healthy tree with no noted concerns, but may be removed for same reasons as above. 9) *Black locus, Robinia pseudoacacia, 12 "x45'. Retain. Healthy tree, with no noted structural defects and vigorous canopy growth. In the unlikely event of failure, neighboring tree and proposed plantings would greatly reduce the possibility of the tree impacting a target. 10) *Black locus, Robinia pseudoacacia, 8 "x2x45'. Retain. No noted structural defects or concerns, enjoying protection from wind stresses with other trees in cluster. Orientation further downhill makes impact of target on playfield extremely unlikely in event of failure. 11) *Black locus, Robinia pseudoacacia, 11 "x45'. Retain. No noted structural defects or concerns. Mild phototropism with self corrected top typical of species and growth conditions. 12) *Black locus, Robinia pseudoacacia, 12 "x50'. Retain. Slight tropism with self corrected top, and no noted concerns. 13) *Black locus, Robinia pseudoacacia, 12 "x50'. Retain. Healthy canopy and branch structure with no noted structural defects or concerns. The position of the tree further down the slope gives it similar protection to wind forces as other trees in this group. 14) *Black locus, Robinia pseudoacacia, 6 "x40'. Retain. Tropism away from playfield with no noted structural concerns or defects. 15) *Lombardi Poplar, Populus nigra, 12 "x55'. Retain. Very small and young tree with fastigate growth habit. No broken, or dead branches, and no evidence of historical failure in canopy. 16) *Bitter cherry, Prunus emarginata, 14 "x35'. Retain. Trunk and lower canopy heavily obscured by ivy and blackberries, who is healthy crown and favorable Branch structure, with mild tropism away from play field. 17) *Willow species, Salix, 12 "x20'. Remove. Multiple dead scaffold branches with poor form and previous historical breakages. 18) *Bitter cherry, Prunus emarginata, 8 "x20'. Remove to improve conditions for proposed plantings. 19) *Alder, Alnus rubrum, 12 "x20. Remove. Tree has 50% dead branches, and dead top. 20) *Willow, Salix species, 14 "x24'. Remove. Multiple dead apical stems, and poor growth structure. 21) *Cottonwood, Populus trichocarpa, 16 "x42'. Retain. Located on steep slope. Tree exhibits favorable growth structure, with no evidence of historical breakage in canopy. Mild tropism downhill, with prevailing wind forces flowing away from target of playfield, and into greenbelt. 22) *Bitter cherry, Prunus emarginata, 12 "x40'. Retain. Tree is located on steep slope. Healthy canopy with no notable concerns, or evidence of previous breakage. In the event of whole or partial failure the tree would likely go down the hill with gravity and prevailing wind forces, away from play field. 23) *Willow, Salix species, 10 "x20'. Remove. Smaller tree with multiple dead parts and poor growth structure. 138 24) • Cottonwood, Populus trichocarpa, 34 "x90'. Retain. Tree is located on steep slope, and is important for stability and hydrology. No large dead branches or previous breakages in canopy, with drip -line barely over top of steep slope in event of breakage. 25) • Cottonwood, Populus trichocarpa, 24 "x60'. Remove. Severe tropism towards play area, with previously broken crown resulting in stag head growth with multiple large sprouts with poor ratio in relation to trunk size and weak attachments. Evidence of historic breakage with similar parts still present. 26) • Willow, Salix species, 8 "x6 "x6 "x36'. Retain. Located several feet down on to steep slope, with healthy canopy. No noted concerns. 27) *Black locus, Robinia pseudoacacia, 8 "x45'. Remove. Cannot be adequately protected during construction. 28) *Black locus, Robinia pseudoacacia, 6 "x30. Remove. Cannot be adequately protected during construction. 29) *Big Leaf Maple, Acer macrophyllum, 22 "x36'. Retain. No evidence of previous breakages, with healthy and vigorous canopy and structure typical of its species. Outside of the Striking Distance of play area and foot traffic in the unlikely event of partial failure. 30) *Black locus, Robinia pseudoacacia, 7 stems 8" and less x 30'. One 14 "x45' trunk. Remove. Trees are in intended play area with engineered surface and must be removed. Sheet 6, East Side of Page 1) *Big Leaf Maple, Acer macrophyllum, 18 "x40'. Remove. Tree cannot be adequately protected during construction and is in middle of open play area. 2) *Big Leaf Maple, Acer macrophyllum, 12 "x14 "x40'. Retain. Healthy crown and canopy with favorable growth structure and no evidence of previous breakage. Lower branches may need to be lifted to accommodate construction equipment mobilization. 3) *Big Leaf Maple, Acer macrophyllum, 20 "x40'. Retain. Favorable grow structure, with healthy canopy and no noted concerns or defects. Located on edge of sensitive slope and outside of striking distance of nearby targets and play areas. 4) • Big Leaf Maple, Acer macrophyllum, 28 "x45'. Healthy appearance and structure with no evidence of previous breakage, and no noted concerns. Well outside of the distance of any targets in the unlikely event of failure. 139 140 6/14/2017 Dear for. Brown Mail - Lindsay.Brown@TukwilaWA.gov 'fharik you for your work In plarining the new remodels and adcliLlons to the Tukwila School District After reviewing the SE PA mitigated detran-nination of non signific.ance I have some concerns and conrinients about sorne of the statements lIbat have been made My nates ate as follows: Reduction of parking -ThrouglbouiL the rei)W there is riention of a redwicm of parking. As a resident I have seen the pail lots fill to capacity. At drop off and peck up dines residential svoets along 140', are filled with parents who sit ide wahing for thou children to be out of school. This is a (onstarit Inconvenience to me and my neighbois and a reduction of pailking would Sure to add to this. When specialty events happen, personal (,frivessays are again used for parking. This o,iows that there is a need for additional parking at these, facilmes, and a reduction of parking would but an undue;, burden of the cesidents, near the school. Mailing-'l li was a note that a gene4 aviiiing llst was sent on 1/19/2017. that was not delivered to my address. I HAVE NOT received any communication from titer sch(.6 distiict abouP this project. Impervious streets- ti looks to be a redociJoin of Irnp.7rvlolus S(prfaoas at Foster, but the addition of 40',X, with the construction of Ilse isirth center. Aie there arty environrnental or design elements that will mitigate the effects of this water runciff? Air -f oinl� 8 stal�es `p6` s -cclnstrucficinc errilssion will be emirely related to vehicijlal and bus till Is ftiere any rifisi'mation regarding these ti fps and the effect on the ak quaktyy. Wdl effect will the addition of 80 parking spots do to the neighborhood around the i center. "Are fli signs that wit be posted directing patrc'ms to riot leave tlheii car efe" How will that district i egrilsae this statements that "transportation vell will not ii (Ile"? https:lloutlook.office365.com/owa/?realm=TukwilaWA.gov&exsvurl=1&11-cc=1033&modurl=O&path=/mail/search ATTACHMENT G 141 ll 6/14/2017 Mail - Lindsay.Brown@TukwilaWA.gov Plants-I woulid like to know ffie reason wiry veer will be ternoved, spedfically if they need to be iernovtrd for the healfli of the Itee, I would like to kiiow ",lbaf happened? I have a sincere concern about the tcrtped/ decaying tr(sO.S that are on the Fos rsr Property as it is. POINT 21 - Point 21 say, Ihat �, dmol needs to grow III order to m(ommodWe gnmoh in the (ornproh(mwe plan, however growlih is not Rotes �a,tedl for Feaster High S&Ioal. So why are we doim9 this project? CONTEXTUALLY SENSITIVE BUILDING MATERIALS- Wfl,q Inatenais Specifically? Will they adhere* to the design guKlelhnes of 0io crunem building faa iide? No recreational uses will be displaced- open green slI wIlil be reduced by the construe lion of tire brah-to-kindergar-len center. CONDITIONAL VARIANCE , see that they hool district has applied for a conditional vai iarnce for reduction of parking, I do not see the need fora conditional vrarlance otu these proiect. I believe liv, school district should abide by current parking ordinances within 0* code. Ronk you fC,n YCKIr h(?I[D WIth the. Pr`0JHCt I appredatc-, you takIng the time to Inok through my citizen's corni'ments If you need any further clanfication, please do not healate to each ouIr to Inie. ton alhan )oseph City (J'I"ukwda-Resldt,am 14414 461" Ave S. 206, 7'r 8,4393 /jnsCtth4'3'temail.c dun https://outlook.office365.com/owa/?realm=TukwilaWA.gov&exsvurl=l &II-cc=1 033&mcrdurI=0&path=/maiI/search 142 m February 28, 2017 Ms. Lindsay Brown City of Tukwila Department of Community Development 6300 Southcenter Boulevard, Suite 100 Tukwila, WA 98188 -8548 Project: Foster High School Modernization and Addition and New Birth -to- Kindergarten Center AHBL No. 2160226.30 Subject: Project Description and Consistency with CUP Criteria Dear Lindsay: Please find enclosed Tukwila School District's application for a combined Conditional Use Permit (CUP), Design Review, and Height and Parking Variances for the Foster High School Modernization and Additions project (FHS) and the new Birth -to- Kindergarten Center (B2K). Please see the enclosed transmittal which lists all submittal items that are included with these applications. Foster High School is located at 4242 South 144th Street. Both Foster High School and Showalter Middle School are on parcel number 1523049108. The site is located in the Low Density Residential (LDR) Zone, and the ball fields are within the Public Recreation Overlay (PRO). The new Birth -to- Kindergarten Center is located off 142nd Street on parcel number 1523049108. The site is currently vacant and does not yet have an address. The property is zoned Low Density Residential and is within a Public Recreation Overlay. Enclosed with the CUP /Design Review applications is a request for the following variances: • FHS Height Variance — to exceed the zoning code maximum building height of 30 feet by 2 feet. • FHS Stadium Height Variance — To allow for the relocation of the flagpole in the stadium in the southwest corner to a maximum of 50 feet in height. • FHS Sports Fields Netting and Fencing Height Variance — to allow the ball fields to have a 10 -foot high chain -link fencing and 20 -foot high netting above (total height of 30 feet). To also allow the Tennis courts to have 10 -foot high chain -link fence. • Foster High Parking Variance — to allow for a maximum of 177 parking spaces onsite, which is below the current and zoning code required parking. • Birth -to- Kindergarten Center height variance — to allow for a building height of 35 feet, exceeding the 30 -foot height maximum in the LDR zone. ATTACHMENT H 1111,,,... ///////If /////////////Urr > / 1200 61h Avenue Suite 1620 Seattle, WA 981013117 206.267.2425 i«cK Ms. Lindsay Brown 1111 February 28, 2017 � X111111111111 2160226.30 »llJllJ /a„ AAME�% Page 2 of 10 i�tgggp� As you know, the Tukwila School District is SEPA Lead Agency on the projects and has issued a SEPA Notice. The District intends to issue a SEPA Determination on the project in late April 2017. Project Descriptions Foster High School Modernization and Additions: Foster High School was originally constructed in 1992 and has not had a significant renovation since. The District will renovate, modernize, and expand the school to accommodate smaller class sizes and a STEAM focus (Science, Technology, Engineering, Arts, and Math). The existing building comprises approximately 113,100 square feet, including 36 teaching stations. There are also 8 teaching stations that exist in four double - classroom portables located on the high school site. With the new additions, the new building will be approximately 169,200 square feet, with 51 teaching stations (an expansion of approximately 56,100 square feet). Current enrollment is 878 students, which is also the current school capacity. With the reconstruction, the school will have the capacity for 1,100 students; however, actual enrollment is not anticipated to increase over the next 10 to 15 years. Specific project elements include the following. No changes are proposed to the existing access or driveway locations. • Add 15 teaching stations classrooms. • The existing open plaza area between the building wings will become part of the building as an interior courtyard. An entry plaza at the southwest side of the school will help identify the main entrance to the public, allow views into the new commons area, and give the project a unique identity. The space will be designed to channel the public from drop -off areas at the west and south, and pedestrians from the intersection of 42" d Avenue South and South 144th Street to the front door. • The student courtyard at the center of the building will provide a variety of spaces for lunch time activities, outdoor learning, and staging for projects and experiments. Additional outdoor spaces for student uses are provided between the north side of the building and sports fields. An enclosed courtyard in the west wing will provide outdoor learning areas for art and science classes. • Relocate /expand administrative office and student services /counseling space. • Repurpose classroom space in existing building (first floor reorganization and modernization, and second floor modernization). • Add an auxiliary gymnasium. • Add a fitness center /weight room. • At the northwest corner, the existing transportation building will be demolished, and two tennis courts will be installed. The existing staff parking lot will be modified to provide fire access to the north side of the building and new parking spaces around the tennis courts. 144 1310130 Ms. Lindsay Brown 1111 February 28, 2017 X111111111111 2160226.30 »llJllJ /a „�% Page 3 of 10 i�tgggp The student parking lot between the school and pool building will be modified to accommodate the new building additions and fields. The small parking area at the southwest building corner close to the front entry will be re- designed to serve 16 parking spaces while maintaining a wide pedestrian connection to the front entry. Bus drop -off areas at the west and south side of the existing building will remain unchanged. Total onsite parking provided is 177 spaces. An additional 11 spaces will be available for special events in the bus loop. • Plazas, courtyards, and other outdoor pedestrian areas will be designed to be long lasting and serve both functional and aesthetic needs. New site paving, walls, ramps, and stairs will be cast in place concrete. Opportunities for students, faculty, and visitors to gather in small and large groups, in both active and passive ways, will be developed. Seating will be provided by a combination of seat walls, movable chairs, or pre- manufactured benches. The existing softball field and tennis courts will be relocated, and the existing portables demolished. The field area will be redesigned to accommodate one baseball field, one softball field, and two tennis courts. The new softball and baseball fields will have new fencing, backstops, dugouts, all- weather sand infields, and natural grass outfields, which will be irrigated. Pedestrian connections will be provided to the residential neighborhood to the north and to the stadium. All new tennis courts will have new fencing, acrylic surfacing, and netting. • Install fencing and netting around the fields. • Perimeter buffer improvements at the north property line and parking lot landscaping will be provided to meet the minimum requirements of the code and as agreed upon with the City of Tukwila. Trees along the existing street frontages and the site's perimeter will be preserved where feasible. • Add new First Responder antennae system, if required. • Add new emergency generator, improved HVAC system, refurbish air - handling system, and add a new efficient boiler. • Provide safety additions, such as secure entries, upgraded camera surveillance system, and added perimeter security fencing and gates. New Birth -to- Kindergarten Center: The new Birth -to- Kindergarten Center (B2K) will provide comprehensive early learning services in an environment focused on the developmental needs of young learners from infancy to kindergarten. The 53,000- square foot, two -story facility will be constructed on District owned land that is contiguous to existing Showalter Middle School and Foster High School Campus. Efficient site planning and creative use of space is an important part of the site design, due to the close proximity to Showalter Middle School, surrounding sensitive areas, and residential neighbors. 1'f � _ Ms. Lindsay Brown 1111 February 28, 2017 X111111111111 2160226.30 »llJllJ /a „�% Page 4 of 10 i�tgggp The first phase of the project will be to house all kindergarten and pre - school from around the District. Subsequent phases will add the infant and toddler programs, the timing for which is not yet known. The total facility capacity will be 440 students and 28 classrooms, of which 290 students and 17 classrooms will be full day kindergarten; 90 preschoolers plus infant and toddler programs of 30 -40 children (in split half -day and full -day programs). Each age group will have separate areas within the building and outdoor play areas. Project details include the following: • Pedestrian and vehicular access will enter the site from South 142nd Street along an existing easement between the church property and the middle school. The existing asphalt driveway adjacent to the church will be improved with new asphalt overlay, sidewalk, and pedestrian scale lighting. • An entry plaza at the south side of the building serving all students will help identify the main entrance to the public and create a unique identity to the school. The space will be designed to channel the public to the front door and students from parent vehicles toward the building. A secondary entry at the west side of the building will accommodate students being dropped off by buses. • Staff and visitor parking provided at the south side of the school building. Approximately 80 parking spaces will be added. • Pedestrian walkways will guide pedestrians toward the front entry of the building and are designed to minimize conflicts with the parent queueing and drop -off, which is located at the northeast side of the parking area. • The bus loop and parking is proposed at the west side of the building. Where vehicular traffic enters the site, a simple 4 -way intersection is proposed to minimize conflict between bus and car circulation at drop -off and pick -up times. • Fire access has been provided through the parking and parent drop -off lanes along the front of the building and through the bus loop and hard surface play areas to the north side of the building. • The service yard will be located on the southwest corner of the building; access to the service yard will be provided via the fire lane / bus loop. • The courtyard at the north side of the building will provide a large seating area and flexible play areas. It will provide outdoor learning opportunities for students and serve as a community gathering area at the same time. • Interior and perimeter landscaping will be provided, per the City of Tukwila's Municipal Code. • Play areas for infants, preschool, and kindergarten students are proposed along the north and east edge of the school. All play areas are laid out to facilitate easy supervision of individual age groups and will be fully fenced for security. A variety of age appropriate play equipment and activity areas will be provided, including hard and soft surface play areas with play structures and a lawn play area. 146 1310130 Ms. Lindsay Brown 1111 February 28, 2017 X111111111111 2160226.30 »llJllJ /a „�% Page 5 of 10 i�Igg���rG ,f o0 Conditional Use Criteria The FHS and B2K properties are zoned Low Density Residential (LDR), and the B2K property also has a PRO overlay. Per Table 18 -6 of the Tukwila Municipal Code (TMC), schools are permitted in LDR zones with a Conditional Use Permit (CUP). The purpose of a CUP is to allow uses that may be permitted subject to conditions and mitigation measures that protect health, safety, and welfare, and ensure compatibility with surrounding uses. A CUP (1-13 -015) is currently in effect for the Foster High School property; however, the scale of the proposed improvements requires a new CUP to be approved. Below are the criteria for CUP approval per TMC 18.64.050, and the applicant's response. The proposed use will not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity. Foster High School The modernization and additions to Foster High School, the new Birth -to- Kindergarten, and associated site improvements will not adversely affect health, safety, and welfare. As educational facilities they provide a much needed public service both for educational facilities as well as for community use of the sports fields and amenities. The use and intensity of Foster High School will be unchanged as a result of this proposal. The purpose of the projects is to modernize the existing structures and site, to add some additional classrooms to meet changing educational needs, and provide a Science, Technology, Art, and Mathematics focus. The existing driveway locations will remain in their current locations. The public will be protected from errant balls through fencing and netting of the ball field perimeters. The photometric analysis demonstrates that there will be less than 1.0 foot candle of light spill at the residential property line. The parking analysis submitted with the variance application demonstrates that the onsite parking provided is adequate to meet the school's needs. Birth -to- Kindergarten Center Efficient site planning and creative use of space is an important part of the Birth -to- Kindergarten site design, due to the close proximity to Showalter Middle School, surrounding sensitive areas, and residential neighbors. Access to the site from a new extension of S 142nd Street provides a direct route for bus, parent, and visitor access. Proposed parking and landscaping will meet City code requirements. All three sites are subject to SEPA environmental review, which will further address potential impacts on the property or vicinity, such as noise, odor, and light pollution. A notice of SEPA consultation was sent to relevant agencies and to properties within 500 feet. A SEPA Determination will be issued in late April, which may include mitigation measures to address any environmental impacts. 2. The proposed use shall meet or exceed the same standards for parking, landscaping, yards, and other development regulations that are required in the district it will occupy. Ms. Lindsay Brown 1111 February 28, 2017 � X111111111111 2160226.30 »llJllJ /a„ AWAN�% Page 6 of 10 i�tgggp Foster High School The FHS site design meets the City requirements for landscaping, yards, and other development regulations, with the exception of height and parking, for which a variance is requested. See the variance application for more details and how the project meets the variance criteria for approval. The parking analysis prepared by Gibson Traffic Consultants dated February, 2017, demonstrates that the overall parking need /usage at FHS is actually significantly less that the code requirements and that the need will be met with the proposed parking spaces. Special event parking will be accommodated through the use of parking spaces at B2K, Showalter Middles School, and the new technology and maintenance building proposed at the current Foster Library. A narrative has been provided within this application showing consistency with the variance criteria for a parking reduction. The parking reduction for the Foster High site will be processed as Type III approval. A height variance will be requested for the Foster High School additions, which will be processed under a Type III approval. However, the proposed height will be less than the existing building height. At the Foster High School site, existing landscaping will be repaired and restored, and new interior and perimeter landscaping will be added. A minimum 10 -foot Type I landscape buffer will be provided along the north end of the property. Parking lot landscaping will exceed the amount of trees and groundcover required by TMC 18.52.30. Trees along the existing street frontages and the site's perimeter will be preserved where feasible. Additional design review criteria for the LDR district are prescribed in TMC 18.60.050 (see the enclosed response to the Design Criteria). . Birth -to- Kindergarten Center The B2K site design meets the City requirements for landscaping, yards, parking, and other development regulations, with the exception of building height, for which a variance is requested. See the variance application for more details and how the project meets the variance criteria for approval. Approximately 80 parking spaces will be added, which exceeds the minimum standard of 1.5 stalls per staff member, as prescribed by Figure 18 -7 of the zoning code. The addition of 80 spaces will bring the total supply of spaces for the entire school campus for use during special events to 434 spaces (Birth -to- Kindergarten, Foster High School, Showalter Middle School, Technology & Maintenance Building plus parking in the bus loop) to 423 spaces. A parking analysis prepared by Gibson Traffic Consultants dated February 2017 (enclosed), shows that the overall parking will be adequate for the site at peak times. Landscaping will be added throughout the site. A 15 -foot Type I landscape buffer will be provided along the western edge of the property, and a minimum 10 -foot Type I landscape buffer will be provided along the northern edge. Existing vegetation on the east edge will not be disturbed. Parking lot landscaping will exceed the amount of trees 148 1310130 Ms. Lindsay Brown 1111 February 28, 2017 � X111111111111 2160226.30 »llJllJ /a„ AAME�% Page 7 of 10 i�tgggp� and groundcover required by TMC 18.52.30. An emphasis will be placed on using native plants and /or drought resistant ornamentals. Certain landscape areas will be designed as raingardens to serve as a natural stormwater treatment and infiltration. Additional design review criteria for the LDR district are prescribed in TMC 18.60.050 (see the enclosed response to the Design Criteria). The new structure will meet minimum setback requirements and maximum height requirements. 3. The proposed development shall be compatible generally with the surrounding land uses. Schools are typically located in residential neighborhoods to best serve the students in the vicinity. The following explains how the FHS and 132K projects have been designed with neighborhood compatibility in mind. Foster High School Adjacent uses include the following: • West: Foster Library, high- density residential (two apartment complexes). • South: Primarily single - family residential. • East: Tukwila School District Administration building (on the Showalter Middle School campus), single - family residential. • North: Single- family residential and a church. Foster High School already operates onsite; and the enrollment is not increasing, so impacts to the adjacent uses are not anticipated. The access /driveway locations are not changing, and the parking study demonstrates that spill -over parking is not anticipated. The relocated tennis court and baseball fields will be fenced along the north property line with a 10 -foot landscape buffer provided, which will help to minimize effects to the neighbors to the north. Noise that is typically associated with school activities will occur, such as children playing outdoors and school buses during starting and ending times. Some noise may be created on a short -term basis as a result of construction activity. The SEPA Checklist (see included) has identified ways that potential noise impacts will be mitigated. As demonstrated by the enclosed photometric analysis, light pollution is not expected to impact adjacent residential areas. The building addition will be designed to be compatible with surrounding uses; however, it will not be easily visible to nearby residences due to its interior location. Birth -to- Kindergarten Center: The project site is in the LDR zone, but the only residential uses are to the north of the property. Showalter Middle School and Foster High School are directly to the south and southwest of the site. A large church property exists on the west side. The eastern portion of the property slopes significantly downward with no nearby uses that could be affected. The proposed building and site design will meet or exceed design review criteria prescribed in TMC 18.60.050. The site will be fully fenced and a 10 -foot landscape buffer provided. Ms. Lindsay Brown 1111 February 28, 2017 X111111111111 2160226.30 »llJllJ /a „�% Page 8 of 10 i�tgggp� Noise may occur onsite that is typically generated with activities associated with schools, such as children playing and school buses during starting and ending times. Some noise may be created on a short -term basis as a result of construction activity. The SEPA Checklist (see included) has identified ways that potential noise impacts will be mitigated. As demonstrated by the enclosed photometric analysis, light pollution is not expected to impact adjacent residential areas. The building will be designed to be compatible with surroundings; however, it is not easily visible to nearby residences due to its location. 4. The proposed use shall be in keeping with the goals and policies of the Comprehensive Land Use Policy Plan. The proposal is within the LDR zone. According to the Tukwila Comprehensive Plan, the LDR land use designation is primarily characterized for single - family residential structures, as well as education and institutional uses. Parts of the site are also within the Public Recreation Comprehensive Plan designation, which is intended to serve public recreation uses. The proposed uses for all sites are consistent with the purpose of the zoning code, as well as multiple aspects of the Comprehensive Plan, as listed below: Residential Neighborhoods GOAL 7.2 Neighborhood Quality: Tukwila's residential neighborhoods have physical features that preserve and strengthen neighborhood character, enhance neighborhood quality, and foster a strong sense of community. • This project meets this goal through implementation Strategy 7.6, which is to apply commercial design guidelines, with an emphasis on buffering residential uses. The schools will serve many families in the neighborhood and larger area, and inherently foster a sense of community. GOAL 7.3 Neighborhood Quality: Stable residential neighborhoods that support opportunities for improved educational attainment, employment, engagement, economic security, and personal safety • Schools can be seen as landmarks within a neighborhood and community that offer educational and employment opportunities. The school campus also provides opportunities for recreation, culture, and various community events. • Consistent with policies 7.3.2 and 7.3.4, the project will include improvements to public infrastructure and onsite vegetation, which will add to neighborhood quality. GOAL 7.4 Neighborhood Sustainability: Continuing enhancement and revitalization of residential neighborhoods to encourage long -term residency and environmental Sustainability. • The Foster High School building has not been renovated since 1992. The proposed modernizations and associated site improvements will assist in the enhancement and revitalization of the surrounding neighborhood. • The high quality design and innovative aspects of the new Birth -to- Kindergarten Center will help to enhance and revitalize the area. 150 1310130 Ms. Lindsay Brown 1111 February 28, 2017 X111111111111 2160226.30 »llJllJ /a „�% Page 9 of 10 i�tgggp� GOAL 7.8 Noise Abatement: Residential neighborhoods are protected from undue noise impacts, in order to ensure for all residents the continued use, enjoyment, and value of their homes, public facilities and recreation, and the outdoors. • Long -term noise impacts are not expected to occur beyond what currently exist. The SEPA Checklist (see included) has identified potential noise mitigation measures. Parks GOAL 6.1 Safe, Convenient, and Connected System: Parks, recreation opportunities, and open spaces that are close to home and /or work and that are interconnected by safe streets, off - street trails and public transportation. • The recreation facilities, which are being expanded and improved as a result of this project, provide opportunities for recreation for students as well residences within a one -half mile, consistent with policy 6.1.1. • The growing capacity of recreation facilities, usable by residents of different ages, is also consistent with Goals 6.4 and 6.5 of the Comprehensive Plan. Economic Development GOAL 3.6 Increase long -term residency in the City. • Consistent with policy 3.6.4, the project seeks to improve school performance and student success by provided needed capacity, amenities, and site improvements. Tukwila School District seeks to graduate students that are ready to succeed in post- secondary education, career, and citizenship. Capital Facilities The Comprehensive Plan's Capital Facilities Chapter requires adequate public facilities to service development in the City, which would include facilities for public schools. The Tukwila Comprehensive Plan calls for growth, and new school facilities are needed to accommodate that growth. Capacity at the Foster High School site would grow, and the proposed Birth -to- Kindergarten Center would provide service for up to 400 students. The Birth -to- Kindergarten Center will be subject to Transportation Mitigation Impact Fees (TI F). 5. All measures shall be taken to minimize the possible adverse impacts, which the proposed use may have on the area in which it is located. Along with what is described in this letter, a SEPA Environmental Checklist has been prepared that describes measures taken to minimize potential adverse impacts. Other environmental reports, such as a parking analysis, photometric analysis, and Traffic Impact analysis, have also been prepared to both study potential effects of the project and identify measures to minimize effects. �r t Ms. Lindsay Brown February 28, 2017 2160226.30 Page 10 of 10 Thank you for your review of the associated CUP, Design Review, and Variance applications. If you have any questions, please call me at (253) 383 -2422. Sincerely, Lisa Klein, AICP Associate Principal LK/CP /el Enclosures c: Jeff Feeney, KMB Architects Dr. Judith Berry, Tukwila School District John Wagener, BLRB Architects Q:\ 2016\ 2160226 \WORDPROC \Letters \20170227 Ltr (Cover Draft FHS & B2K) 2160226.30.docx iNJII >NI liiii l AN 152 1310130 ............... Gibson Traffic Consultants 2813 Rockefeller Avenue Suite B Everett, WA 98201 425.339.8266 Tukwila Birth to K Traffic Impact Analysis Jurisdiction: City of Tukwila February 2017 ATTACHMENT I GTC 416.178 153 Tukwila Birth to K Traffic Impact Analysis TABLE OF CONTENTS 1. DEVELOPMENT IDENTIFICATION ................................................... ............................... 1 2. METHODOLOGY ................................................................................... ............................... 1 3. TRIP GENERATION ............................................................................... ............................... 4 3.1 Half -Day Pre - Kindergarten ............................................................... ............................... 5 4. TRIP DISTRIBUTION ............................................................................ ............................... 6 5. INTERSECTION ANALYSIS ................................................................. ............................... 6 5.1 Level of Service Results .................................................................. ............................... 11 5.2 On -Site Operations .......................................................................... ............................... 11 6. PARKING ANALYSIS ......................................................................... ............................... 12 7. MITIGATION ........................................................................................ ............................... 12 8. CONCLUSIONS .................................................................................... ............................... 13 LIST OF FIGURES Figure1: Site Vicinity Map ............................................................................. ............................... 2 Figure 2: Development Trip Distribution — AM (School PM) Peak ............... ............................... 7 Figure 3: 2016 Existing Traffic Volumes ........................................................ ............................... 8 Figure 4: 2022 Baseline Traffic Volumes ........................................................ ............................... 9 Figure 5: 2022 Future with Development Traffic Volumes .......................... ............................... 10 LIST OF TABLES Table 1: Level of Service Criteria for Intersections ......................................... ............................... 3 Table 2: Trip Generation Summary — Elementary Students ............................ ............................... 4 Table 3: Trip Generation Summary — Birth to Pre -K Students ....................... ............................... 4 Table 4: Trip Generation Summary — Total Trips ........................................... ............................... 5 Table 5: Intersection Level of Service Summary .......................................... ............................... 11 ATTACHMENTS TripGeneration Calculations .......................................................................... ............................... A Traffic Volume Data and Calculations ............................................................. ..............................B Level of Service Calculations ........................................................................... ..............................0 Gibson Traffic Consultants info@gibsontraffic.com 154 i February 2017 GTC 416 -178 Tukwila Birth to K Traffic Impact Analysis 1. DEVELOPMENT IDENTIFICATION Gibson Traffic Consultants, Inc. (GTC) has been retained to provide a traffic impact analysis for the proposed Birth to K school for the Tukwila School District. GTC is a professional traffic engineering consulting firm registered and licensed in the State of Washington. Brad Lincoln, responsible for this report and traffic analysis, is a licensed professional engineer (Civil) in the State of Washington and member of the Washington State section of ITE. The Birth to K school is located north of Showalter Middle School and is proposed to have access to S 142nd Street along the north side of Showalter Middle School and Foster High School. The school is proposed to consist of approximately 53,000 SF of school space for up to 440 students. Approximately 300 students will be kindergarten students and 140 will be birth to pre- kindergarten students. It is anticipated that as many as 75% of the kindergarten students will be bussed to the site. The start and end times for the different students, kindergarten, pre- kindergarten and infant/toddler, will be staggered by approximately 30 minutes. The site is proposed to have 80 parking spaces plus room for 6 busses. The school is expected to be built by the end of 2019. A site vicinity map has been included in Figure 1. 2. METHODOLOGY The trip generation calculations for the Tukwila Birth to K school have been performed based on data contained in the Institute of Transportation Engineer's (ITE) Trip Generation Manual. The calculations have been performed by using a combination of trip generation data for elementary school and daycare centers. The scope of the analysis contained in this report is based on the discussions with City of Tukwila staff. The analysis has been performed for the AM peak -hour and the school PM peak -hour to account for the two times when the school's trip generation is the highest. The following intersections have been analyzed as part of this report: 1. 42nd Avenue S at S 1441i Street 2. 42nd Avenue S at S 142nd Street The analysis has been performed for the 2016 existing conditions, 2022 baseline conditions and 2022 future with development conditions. This time period has been utilized to account for a typical 6 -year horizon period; even though the school is anticipated to be completed by 2020. Gibson Traffic Consultants February 2017 info @gibsontraffic.com 1 GTC 416 -178 155 S 140TH ST S 144TH ST S 146TH ST N w tO 02/27/17 S 140TH ST S 142ND ST /ACCESS co w w I0 GIBSON TRAFFIC CONSULTANTS TRAFFIC IMPACT STUDY GTC #16 -178 TUKWILA SCHOOL DISTRICT BIRTH TO K CAMPUS 440 STUDENTS CITY OF TUKWILA LEGEND DEVELOPMENT SITE FIGURE 1 SITE VICINITY MAP Tukwila Birth to K Traffic Impact Analysis Congestion at intersections is generally measured in terms of level of service (LOS). In accordance with Highway Capacity Manual: 2010 Edition (HCM) by the Transportation Research Board, road facilities and intersections are rated between LOS A and LOS F, with LOS A being free flow and LOS F being forced flow or over - capacity conditions. The level of service at signalized, roundabout and all -way stop- controlled intersections is based on the average delay of all approaches. The level of service for two -way stop- controlled intersections is based on average delays for the stopped approach with the highest delay. Geometric characteristics and conflicting traffic movements are taken into consideration when determining level of service values. A summary of the intersection level of service criteria is included in Table 1. Table 1: Level of Service Criteria for Intersections Level of I Service Expected Delay Intersection Control Delay (Seconds per Vehicle) Unsignalized Intersections Signalized Intersections A Little/No Delay <10 <10 B Short Delays >10 and <15 >10 and <20 C Average Delays >15 and <25 >20 and <35 D Long Delays >25 and <35 >35 and <55 E Very Long Delays >35 and <50 >55 and <80 F Extreme Delays2 >50 >80 The level of service threshold that has been applied to the study intersections in this report is LOS D, based on the surrounding uses and the descriptions identified in the City of Tukwila Coinprehensive Plan. The level of service analysis has been performed utilizing the Synchro 9. 1, Build 907 software. i Source: Highway Capacity Manual 2010. LOS A: Free -flow traffic conditions, with minimal delay to stopped vehicles (no vehicle is delayed longer than one cycle at signalized intersection). LOS B: Generally stable traffic flow conditions. LOS C: Occasional back -ups may develop, but delay to vehicles is short term and still tolerable. LOS D: During short periods of the peak hour, delays to approaching vehicles may be substantial but are tolerable during times of less demand (i.e. vehicles delayed one cycle or less at signal). LOS E: Intersections operate at or near capacity, with long queues developing on all approaches and long delays. LOS F: Jammed conditions on all approaches with excessively long delays and vehicles unable to move at times. 2 When demand volume exceeds the capacity of the lane, extreme delays will be encountered with queuing which may cause severe congestion affecting other traffic movements in the intersection. Gibson Traffic Consultants February 2017 info @gibsontraffic.com 3 GTC 416 -178 157 Tukwila Birth to K Traffic Impact Analysis 3. TRIP GENERATION The trip generation for the Tukwila Birth to K school is based on a combination of the following ITE Land Use Codes: • ITE LUC 520 (Elementary School) — 300 students • ITE LUC 565 (Daycare Center) — 140 students The kindergarten students will most closely be associated with elementary school kids, especially with up to 75% of the students anticipated to ride the bus. The birth to pre- kindergarten students are most closely associated with daycare center type students since these students will almost certainly rely on parents dropping them off and picking them up. A daycare center usually includes a significant amount of reduction in new trips being generated since parents will typically utilize a daycare center along a route they already travel. These trips are identified as pass -by trips since they are not new trips to the street system. A 75% pass -by reduction has been approved by many jurisdictions in the Puget Sound region. This pass -by trip reduction has been identified in the trip generation calculations included in the attachments, but has not been applied to the trip generation calculations included in the text of this report or in the calculations utilized for the intersection level of service analysis. This results in all of the trips generated by the school being new trips to the system and results in a conservatively high analysis of the impacts of the school. The trip generation of the 300 elementary students is summarized in Table 2. Table 2: Trip Generation Summary — Elementary Students 300 Elementary Average Daily Trips AM Peak -Hour Trips School PM Peak -Hour Trips Students Inbound Outbound Total Inbound Outbound Total Inbound Outbound Total Generation Rate 1.29 trips per student 0.45 trips per student 0.28 trips per student Splits 50% 50% 100% 55% 45% 100% 45% 55% 100% Trips 194 193 387 74 61 135 38 46 84 The trip generation of the 140 birth to pre - kindergarten students are summarized in Table 3. Table 3: Trip Generation Summary — Birth to Pre -K Students 140 Birth to Pre -K Average Daily Trips AM Peak -Hour Trips School PM Peak -Hour Trips Students Inbound Outbound Total Inbound Outbound Total Inbound Outbound Total Generation Rate 4.38 trips per student 0.80 trips per student 0.81 trips per student Splits 50% 50% 100% 53% 47% 100% 47% 53% 100% Trips 307 306 613 j 60 52 112 53 58 113 Gibson Traffic Consultants info@gibsontraffic.com 158 0 February 2017 GTC 416 -178 Tukwila Birth to K Traffic Impact Analysis The total trip generation of the Tukwila Birth to K school is summarized in Table 4. Table 4: Trip Generation Summary — Total Trips The trip generation calculations are included in the attachments. It is important to note that 75% of the kindergarten students are anticipated to ride the bus, which is higher than a typical elementary school. This level of bus ridership would likely reduce the trip generation for the 300 kindergarten kids. However, the mode split for the Tukwila Birth to K school is not known, but it is assumed to be similar to an elementary school for the 300 kindergarten students and similar to a daycare for the 140 birth to pre- kindergarten students. 3.1 Half -Day Pre - Kindergarten The Tukwila Birth to K is planned to have half -day pre- kindergarten with sessions in the morning and afternoon. The 440 students at the Tukwila Birth to K would represent the maximum number of students during either of these pre- kindergarten sessions. There are anticipated to be 77 pre- kindergarten students at one time. ITE Land Use Code 565, daycare, was utilized for the pre- kindergarten students since it is the most closely associated land use code. ITE does not identify if the data for this land use included morning and afternoon sessions. The worst case scenario would be to assume 154 additional daily trips for a full turnover of pre- kindergarten students and assuming all pre- kindergarten students are picked -up or dropped -off in a single vehicle. This does not account for students that may walk, carpool or utilize bus service. This would therefore represent an overly conservative assumption and would result in 1,154 average daily trips. The two half -day pre- kindergarten sessions are not anticipated to change the AM or school PM peak - hour trip generation of the site since the trip generation assumption of 1 vehicle per student is overly conservative. Gibson Traffic Consultants February 2017 info @gibsontraffic.com 5 GTC 416 -178 159 Average Daily Trips AM Peak -Hour Trips School PM Peak -Hour Trips Student Type Inbound Outbound Total Inbound Outbound Total Inbound Outbound Total Elementary 300 students 194 193 387 74 61 135 38 46 84 Birth to Pre -K 140 students 307 306 613 60 52 112 53 60 113 Total 501 499 1,000 134 113 247 91 106 197 The trip generation calculations are included in the attachments. It is important to note that 75% of the kindergarten students are anticipated to ride the bus, which is higher than a typical elementary school. This level of bus ridership would likely reduce the trip generation for the 300 kindergarten kids. However, the mode split for the Tukwila Birth to K school is not known, but it is assumed to be similar to an elementary school for the 300 kindergarten students and similar to a daycare for the 140 birth to pre- kindergarten students. 3.1 Half -Day Pre - Kindergarten The Tukwila Birth to K is planned to have half -day pre- kindergarten with sessions in the morning and afternoon. The 440 students at the Tukwila Birth to K would represent the maximum number of students during either of these pre- kindergarten sessions. There are anticipated to be 77 pre- kindergarten students at one time. ITE Land Use Code 565, daycare, was utilized for the pre- kindergarten students since it is the most closely associated land use code. ITE does not identify if the data for this land use included morning and afternoon sessions. The worst case scenario would be to assume 154 additional daily trips for a full turnover of pre- kindergarten students and assuming all pre- kindergarten students are picked -up or dropped -off in a single vehicle. This does not account for students that may walk, carpool or utilize bus service. This would therefore represent an overly conservative assumption and would result in 1,154 average daily trips. The two half -day pre- kindergarten sessions are not anticipated to change the AM or school PM peak - hour trip generation of the site since the trip generation assumption of 1 vehicle per student is overly conservative. Gibson Traffic Consultants February 2017 info @gibsontraffic.com 5 GTC 416 -178 159 Tukwila Birth to K Traffic Impact Analysis 4. TRIP DISTRIBUTION The distribution of trips generated by the Tukwila Birth to K school is based on existing count data, surrounding uses and major roadways in the site vicinity. It is anticipated that 55% of the school's trips will travel along S 144th Street, forty -five percent to and from the west and ten percent to and from the east. Approximately 30% of the school's trips will travel to and from the south along 42nd Avenue S, south of S 144th Street. The remaining 15% of the school's trips are anticipated to travel to and from the north along S 42nd Street, north of the site. A detailed trip distribution is shown in Figure 2. The school is not anticipated to significantly impact 43rd Avenue S or S 1401h Street since the majority of trips are anticipated to travel to and from the south. 5. INTERSECTION ANALYSIS The intersection analysis has been performed for the AM peak -hour and school PM peak -hour. Existing traffic volumes at the study intersections were collected by the independent count firm National Data and Surveying Solutions (NDS) near the end of September, 2016. The existing traffic volumes at the study intersections are shown in Figure 3. The 2022 baseline traffic volumes were calculations by applying a 3% annually compounding growth rate to the existing traffic volumes. This growth rate is higher than the typical 2% growth rate identified by the Puget Sound Regional Council (PSRC) and considerably higher than the growth rates identified in the City of Tukwila Background Report for the Transportation Element of the Coinprehensive Plan Update. The 2022 baseline traffic volumes are shown in Figure 4. The 2022 future with development traffic volumes were calculated by adding the school's trips to the 2022 baseline traffic volumes. The 2022 future with development traffic volumes are shown in Figure 5. The existing count data and traffic volume calculations are included in the attachments. Gibson Traffic Consultants February 2017 info @gibsontraffic.com 6 GTC 416 -178 160 S 140TH ST S 144TH ST S 146TH ST N w 02/27/17 S 140TH ST S 142ND ST /ACCESS i iiM /�ksi / / / / / /// 14 9 >11 10 100 co w w I0 GIBSON TRAFFIC CONSULTANTS TRAFFIC IMPACT STUDY GTC #16 -178 TUKWILA SCHOOL DISTRICT BIRTH TO K CAMPUS 440 STUDENTS CITY OF TUKWILA LEGEND AWDT AM (SPM) < > PEAK NEW SITE TRAFFIC (DAILY /PEAK -HOUR) TRIP DISTRIBUTION % FIGURE 2 DEVELOPMENT TRIP DISTRIBUTION AM (SCHOOL PM) PEAK S 140TH ST S 144TH ST S 146TH ST N w 02/27/17 S 140TH ST S 142ND ST /ACCESS OST S CAM S / / / / / / / /// / / / / / / / / /// NS / // co w w I0 GIBSON TRAFFIC CONSULTANTS TRAFFIC IMPACT STUDY GTC #16 -178 TUKWILA SCHOOL DISTRICT BIRTH TO K CAMPUS 440 STUDENTS CITY OF TUKWILA LEGEND XXX (XXX) TURNING MOVEMENT VOLUME AM (SCHOOL PM) PEAK -HOUR FIGURE 3 2016 EXISTING TRAFFIC VOLUMES S 140TH ST S 144TH ST S 146TH ST N w 02/27/17 S 140TH ST S 142ND ST /ACCESS OST S CAM S / / / / / / / /// / / / / / / / / /// ;,s` ksi NS / co w w I0 GIBSON TRAFFIC CONSULTANTS TRAFFIC IMPACT STUDY GTC #16 -178 TUKWILA SCHOOL DISTRICT BIRTH TO K CAMPUS 440 STUDENTS CITY OF TUKWILA LEGEND XXX (XXX) TURNING MOVEMENT VOLUME AM (SCHOOL PM) PEAK -HOUR FIGURE 4 2022 BASELINE TRAFFIC VOLUMES S 140TH ST S 144TH ST S 146TH ST N w CO 22 (23) r 22 (94) 02/27/17 S 140TH ST 77 (62) 125 (214) r 55 (70) u) N A o ti S 142ND ST /ACCESS OST S CAM S / / / / / / / /// / / / / / / / / /// ;,s` u / NS / // co w w I0 GIBSON TRAFFIC CONSULTANTS TRAFFIC IMPACT STUDY GTC #16 -178 TUKWILA SCHOOL DISTRICT BIRTH TO K CAMPUS 440 STUDENTS CITY OF TUKWILA LEGEND XXX (XXX) TURNING MOVEMENT VOLUME AM (SCHOOL PM) PEAK -HOUR FIGURE 5 2022 FUTURE WITH DEVELOPMENT TRAFFIC VOLUMES Tukwila Birth to K Traffic Impact Analysis 5.1 Level of Service Results The intersection of 42nd Avenue S at S 144h Street is currently an all -way stop- controlled intersection that is planned to be improved to a signalized intersection. This intersection has therefore been analyzed as an all -way stop- controlled intersection for the 2016 existing conditions and as a signal for the 2022 baseline and 2022 future with development conditions. No other improvements have been included as part of the level of service analysis. The level of service analysis has been performed with the same parameters, including channelization, peak -hour factors and heavy vehicle factors as the existing conditions. The level of service results are summarized in Table 5. Table 5: Intersection Level of Service Summary Intersection Peak -Hour 2016 Existing Conditions 2022 Baseline Conditions 2022 Future w Development LOS Delay LOS Delay LOS I Delay 1. 42nd Avenue S at S 1441, Street AM Peak -Hour B 12.0 sec B 11.6 sec B 14.6 sec School PM Peak B 12.6 sec B 11.7 sec B 13.7 sec 2. 42nd Avenue S at S 1441, Street AM Peak -Hour C 10.7 sec B 11.2 sec C 17.3 sec School PM Peak A 9.9 sec B 10.4 sec C 19.2 sec The level of service analysis shows that the study intersections will operate at acceptable LOS C or better with the addition of the Tukwila Birth to K school. The level of service calculations are included in the attachments. The level of service analysis does not show any significant queue lengths at the study intersections during either the AM or school PM peak- hours. Additionally, queue lengths due to schools are typically short in duration and do not last as long as queue lengths associated with commuter trips. 5.2 On -Site Operations The on -site operations were evaluated qualitatively based on the anticipated operations of the site, which includes staggered arrival and dismissal times for kindergarten and pre- kindergarten students. The site is proposed to have separate bus and drop- off /pick -up loops, which provides for good separation between busses and parent vehicles. The site will have approximately 230 feet of dedicated drop - off/pick -up area, which can accommodate approximately 10 vehicles. There will be an additional 400 feet of storage area within the parking lot, which would provide storage for approximately 16 additional vehicles. The drop - off/pick -up area and parking lot are anticipated to have storage for 26 vehicles. Additionally, parents will be able to utilize open parking spaces to pick -up and drop -off students. The drive aisle through the parking lot and drop- off /pick -up area is wide enough to allow vehicles to pass stopped vehicles. The Tukwila Birth to K school is anticipated to have 80 parking spaces and 46 teachers and staff, which allows for 34 parking spaces for parents. The total number of parent pick -up /drop -off vehicles that can be accommodated within the pick -up /drop -off and parking lot is 60 vehicles. The peak demand of the school is anticipated to be 74 inbound vehicles, based on the elementary school AM peak -hour inbound trips. There are not anticipated to be 74 vehicles on the site at the same Gibson Traffic Consultants February 2017 info @gibsontraffic.com 11 GTC 416 -178 165 Tukwila Birth to K Traffic Impact Analysis time, especially since a portion of these trips will be teachers and staff arriving. Space for 60 pick- up /drop -off vehicles on the site at any one time should therefore be sufficient for the Tukwila Birth to K school. The staggered arrival and dismissal times, 80 parking spaces, separate bus and parent vehicle loops, dedicated drop- off /pick -up loop for 11 vehicles and space for 17 additional vehicles to queue should allow the site to adequate operate and handle the arrival and dismissal traffic. The school will also have emergency vehicle access so that emergency vehicles have an alternative access point if an emergency does occur during the AM or school PM peak- hours. 6. PARKING ANALYSIS The Tukwila Birth to K school is proposed to include 440 students and 80 parking spaces, which equates to a parking rate of 0.18 spaces per student. This parking rate was compared to parking data published by ITE in Parking Generation, 4" Edition (2010). ITE identifies an average parking demand of 0.17 parking spaces per student for an elementary school. The parking demand based on City of Tukwila standards is 1.5 spaces per teacher /staff. The 46 teachers /staff would result in 69 parking spaces being required. The proposed parking supply of 80 spaces would therefore satisfy the ITE parking demand and City of Tukwila parking demand. 7. MITIGATION The City of Tukwila has established transportation impact fees for several different land uses, including schools. The most applicable land in the City of Tukwila Traffic bnpact Fee Schedule 2007, the most recent schedule still in effect, is elementary school. The Tukwila Birth to K school is located in Zone 3, which has a fee of $119.31 per student. The traffic impact fee for the Tukwila Birth to K school, based on 440 students, is $52,496.40. It is important to note that this fee mitigates for all students at the school. However, the 300 kindergarten students are currently at separate schools throughout the jurisdiction and should arguably not need to be mitigated. The 140 pre- kindergarten and infant/toddler students would represent a mitigation fee of $16,703.40. No other off -site mitigation should be required for the Tukwila Birth to K school since the traffic analysis showed the study intersections operating at acceptable LOS C or better during the AM and School PM peak- hours. Gibson Traffic Consultants February 2017 info @gibsontraffic.com 12 GTC 416 -178 166 Tukwila Birth to K Traffic Impact Analysis 8. CONCLUSIONS The Tukwila Birth to K school is proposed to consist of an approximately 56,000 SF school with a maximum occupancy of 440 students. The majority of the students, approximately 300, will be kindergarten students. It is anticipated that 75% of these kindergarten students will utilize the provided bus service. The school is anticipated to generate as many as 1,000 average daily trips with 247 AM peak -hour trips and 197 School PM peak -hour trips. The study intersections are anticipated to operate at LOS C or better in the future with the addition of these trips. The City of Tukwila traffic mitigation fee for the Tukwila Birth to K school will be $52,496.40, based on the 440 students. However, the mitigation fees would only be $16,703.40 if credit is applied for the 300 existing kindergarten students currently at separate schools within the district. No other off -site mitigation should be required. Gibson Traffic Consultants February 2017 info @gibsontraffic.com 13 GTC 416 -178 167 Trip Generation Calculations Tukwila Birth -to -K GTC #16 -178 Trip Generation for: Development Peak Weekday (a.k.a.): Average Weekday Daily Trips (AWDT) NET EXTERNAL TRIPS BY TYPE IN BOTH DIRECTIONS DIRECTIONAL ASSIGNMENTS Gross Trips Internal Crossover TOTAL PASS -BY DIVERTED LINK NEW PASS -BY DIVERTED LINK NEW LAND USES VARIABLE ITE LU code Trip Rate % IN /o % OUT In +Out (Total) % of Gross Trips Trips In +Out (Total) In +Out (Total) % of Ext. Trips In +Out (Total) % of Ext. Trips In +Out (Total) In +Out (Total) In Out In Out In Out Elementary School 300 Stdt 520 1.29 50% 50% 387 0% 0 387 0% 0 0% 0 387 0 0 0 0 194 193 Daycare Center 140 Stdt 565 4.38 50% 50% 613 0% 0 613 75% 460 0% 0 153 230 230 0 0 77 76 Total 1,000 0 1,000 460 0 540 230 230 0 0 271 269 Tukwila Birth -to -K GTC #16 -178 Trip Generation for: Development Peak Weekday, Peak Hour of Adjacent Street Traffic, One Hour between 7 and 9 AM (a.k.a.): Weekday AM Peak Hour NET EXTERNAL TRIPS BY TYPE IN BOTH DIRECTIONS DIRECTIONAL ASSIGNMENTS Gross Trips Internal Crossover TOTAL PASS -BY DIVERTED LINK NEW PASS -BY DIVERTED LINK NEW LAND USES VARIABLE ITE LU code Trip Rate o % IN /o % OUT In +Out (Total) % of Gross Trips Trips In +Out (Total) In +Out (Total) % of Ext. Trips In +Out (Total) % of Ext. Trips In +Out (Total) In +Out (Total) In Out In Out In Out Elementary School 300 Stdt 520 0.45 55% 45% 135 0% 0 135 0% 0 0% 0 135 0 0 0 0 74 61 Daycare Center 140 Stdt 565 0.80 53% 47% 112 0% 0 112 75% 84 0% 0 28 45 39 0 0 15 13 Total 247 0 247 84 0 163 45 39 0 0 89 74 Tukwila Birth -to -K GTC #16 -178 Trip Generation for: Development Peak Weekday, PM Peak Hour of Generator (a.k.a.): PM Peak Hour of Generator NET EXTERNAL TRIPS BY TYPE IN BOTH DIRECTIONS DIRECTIONAL ASSIGNMENTS Gross Trips Internal Crossover TOTAL PASS -BY DIVERTED LINK NEW PASS -BY DIVERTED LINK NEW LAND USES VARIABLE ITE LU code Trip Rate o % IN /o % OUT In +Out (Total) % of Gross Trips Trips In +Out (Total) In +Out (Total) % of Ext. Trips In +Out (Total) % of Ext. Trips In +Out (Total) In +Out (Total) In Out In Out In Out Elementary School 300 Stdt 520 0.28 45% 55% 84 0% 0 84 0% 0 0% 0 84 0 0 0 0 38 46 Daycare Center 140 Stdt 565 0.81 47% 53% 113 0% 0 113 75% 85 0% 0 28 40 45 0 0 13 15 Total 197 0 197 85 0 112 40 45 0 0 51 61 Traffic Volume Data and Calculations 172 42nd Ave S S 144th St meizu N,fi I De,r &Surveying &—i-, Date: Tue, Sep 20, 2016 Count Period: 7:00 AM to 9:00 AM Peak Hour: 7:15 AM to 8:15 AM " ,y "' w> 0 0 0 0 HV %: PHF < B EB 2.7% 0.80 I WB 4.9% 0.75 12 13 19 109 4 122 7 135 12 132 53 1254 `r NB 4.3% 0.88 46 105 53 0 36 115 59 0 60 N SB 9.7% 0.65 count summary volumes include heavy vehicles but exclude bicycles in overall count. TOTAL 5.1% 0.80 Interval 5 144th St S 144th St 42nd Ave 5 Start Eastbound Westbound Northbound UT LT TH RT UT LT TH RT UT LT TH Rl 7:00 AM 0 5 17 2 0 5 7 7 0 8 39 9 42nd Ave 5 15 -min Rolling Southbound Total One Hot IT LT TH RT 0 14 8 2 123 1 0 8:15 AM 8:30 AM 8:45 AM Count Total 0 0 0 0 4 21 4 2 21 7 3 16 4 47 198 44 0 0 0 0 8 11 11 81 11 20 19 162 4 4 5 73 0 7 0 9 0 8 0 68 23 22 25 224 19 9 4 100 0 0 0 0 5 10 6 95 12 13 19 109 4 122 7 135 12 132 53 1254 718 632 531 0 Peak Hour 0 33 123 27 0 46 105 53 0 36 115 59 0 60 57 28 742 0 Note: Two -hour count summary volumes include heavy vehicles but exclude bicycles in overall count. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) Start EB WB NB SB Total EB WB NB SB Total East West North South Total 7:00 AM 0 1 2 1 4 0 0 0 0 0 0 0 6 0 6 7:15 AM 0 1 1 2 4 2 0 0 0 2 24 4 21 6 55 7:30 AM 3 5 3 7 18 2 0 0 0 2 29 14 114 3 160 7:45 AM 1 2 3 4 10 0 1 0 0 1 34 7 127 0 168 8:00 AM 1 2 2 1 6 0 0 0 0 0 6 2 17 0 25 8:15 AM 0 3 3 2 8 0 0 0 0 0 4 1 5 0 10 8:30 AM 1 3 0 2 6 0 0 0 0 0 2 5 4 0 11 8:45 AM 1 0 0 1 1 2 1 0 0 0 0 0 2 2 4 0 8 Count Total 6 17 15 20 58 4 1 0 0 5 101 35 298 9 443 Peak Hour 5 10 9 14 38 4 1 0 0 5 93 27 279 9 408 B-1 173 42nd Ave S S 142nd St "N " Peak Hour meizu N,fi I De,r &Surveying &—i-, Date: Tue, Sep 20, 2016 Count Period: 7:00 AM to 9:00 AM Peak Hour: 7:30 AM to 8:30 AM ;y w> 5 142nd St HV %: PHF < B EB 0.0% 0.00 WB 14.3% 0.70 Eastbound Westbound `r NB 5.9% 0.73 tOw00w SB 15 -min Total SB 5.0% 0.62 UT LT TH RT UT LT TH TOTAL 5.8% 0.67 r���n• c��.,,rr,araa� 4-10 Note: Two -hour count summary volumes include heavy vehicles but exclude bicycles in overall count Interval 5 142nd St S 142nd St 42nd Ave S Bicycles 42nd Ave 5 Pedestrians (Crossing Leg) Interval Start Eastbound Westbound WB NB SB Northbound EB WB Southbound SB 15 -min Total Rolling One Hour West North South UT LT TH RT UT LT TH RT UT LT TH RT UT LT TH RT 0 0 7:00 AM 0 2 0 0 0 2 0 0 0 2 44 1 0 1 22 0 74 0 7:15 AM 0 0 0 0 0 1 0 0 0 0 32 2 0 0 11 0 46 0 0 �ii / / / / /� �i / / / /� /� //� ,,,,,.. / , ,,,,,,,,, ;;;;;;;, - // ��i // ���i / / //� %did /// ................................................. , ;v�/�iii / / / / /� // /ice // � %/si�ii„ ,,,;,�r�'� , ;;;;;;;;;;;zzz, � �� ,,,rr/vii / / / / /� // /ice / / / /� %�r�iri / /� /� 7:45 AM 0 G 0 4 0 3 0 2 0 G 61' 3 0 2, 63 0 134' 353 X00 AkY .... , 6 51 , 7,;;:::::i- EL.... 7 35$ 0 1 , iii / / / //, 7iil / /// ;� / / / /// �i/ �ii / / / / /�iiil / / //�i / / / / / /�� // '�� / /// ////�"��3//// ,�ii / / / / / /� / /��j� iii / / / //ii�'�iiii i 8:30 AM 0 0 0 1 0 1 0 1 0 0 23 1 0 0 27 0 54 315 8:45 AM 0 0 0 2 0 2 0 0 0 0 29 1 0 0 31 0 65 246 Count Total 0 2 0 3 0 16 0 5 0 2 303 16 0 4 248 0 599 L11 Peak Hour 0 0 0 0 0 10 0 4 0 0 175 11 0 3 157 0 360 42 46 24 Note: Two -hour count summary volumes include heavy vehicles but exclude bicycles in overall count Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) Start EB WB NB SB Total EB WB NB SB Total East West North South Total 7:00 AM 1 0 2 1 4 0 0 0 0 0 1 2 1 0 4 7:15 AM 0 0 0 3 3 0 0 0 0 0 6 3 0 0 9 7:30 AM 0 0 2 5 7 0 0 0 0 0 14 9 1 3 27 7:45 AM 0 1 2 2 5 0 0 0 0 0 22 9 9 2 42 8:00 AM 0 1 4 1 6 0 0 0 0 0 1 3 0 1 5 8:15 AM 0 0 3 0 3 0 0 0 0 0 9 11 35 18 73 8:30 AM 0 0 0 2 2 0 0 0 0 0 0 4 0 0 4 8:45 AM 0 1 0 0 1 0 0 0 0 0 0 1 0 0 1 Count Total 1 3 13 14 31 0 0 0 0 0 53 42 46 24 165 Peak Hour 0 2 11 8 21 0 0 0 0 0 46 32 45 24 147 B-2 174 1 S 144th St at 42nd Ave S SynchroID: 1 96 1 210 114 Average Weekday Existing Volumes 1 34 1 11 145 346 201 b b Average Weekday 28 1 57 60 Q 14 AM Peak -Hour t2 b b a 0 14 t2 0 T 42nd Avenue S 210 Q Street 25 North 60 �' Year: 9/20/2016 169 60 0 b a E46 204 0 b 42nd Avenue S Q t2 Z� T Data Source: INDS 40 352 S 144th Street 742 S 144th Street 446 40 North Future w Dev. Volumes 269 33 353 Average Weekday 84 1 102 83 AM Peak -Hour t2 183 123 b 242 Q 77 252 27 b a 125 257 42nd Avenue S � 55 T 530 S 144th Street 1,094 Q .9 Z� 99 �' 36 115 59 300 32 b 130 340 210 Q Baseline Volumes Z� 43 1 177 1 173 412 239 Average Weekday 479 1 290 33 1 68 72 AM Peak -Hour t2 b b 42nd Avenue S Q 2 022 201 a ffYear: 243 Growth Rate = 3.0% � T Years of Growth = 6 419 S 144th Street 884 S 144th Street 532 North Total Growth = 1.1941 39 218 147 b 289 32 b 42nd Avenue S Q .9 Z� 43 1 137 1 70 155 405 1 250 Development Trips 96 1 210 114 Average Weekday 51 1 34 1 11 AM Peak -Hour t2 b b 42nd Avenue S Q 14 51 a 0 14 t2 0 T 111 S 144th Street 210 S 144th Street 25 North 60 �' 60 0 b 11 0 b 42nd Avenue S Q .9 Z� 0 40 0 34 74 40 Future w Dev. Volumes 269 622 353 Average Weekday 84 1 102 83 AM Peak -Hour t2 b b Site Access Q 77 252 a 125 257 � 55 T 530 S 144th Street 1,094 S 144th Street 557 North 99 �' 278 147 b 300 32 b 42nd Avenue S Q .9 Z� 43 1 177 1 70 189 479 1 290 B -3 175 2 S 142nd St at 42nd Ave S SynchroID: 2 92 323 231 Average Weekday 0 1 68 Existing Volumes 60 239 179 Average Weekday 0 1 57 3 0 AM Peak -Hour t2 b b t2 8 T 0 - -- 558 42nd Avenue S Q 4 Year: 9/20/2016 0 0 0 b a 0 14 0 b 42nd Avenue S t2 10 Data Source: INDS 0 - -- 260 S 142nd Street 28 176 512 1 336 0 0 b 14 0 b 42nd Avenue S 0 1 175 1 11 67 253 1 186 Baseline Volumes Average Weekday AM Peak -Hour Year: 2022 Growth Rate = 3.0% Years of Growth = 6 Total Growth = 1.1941 Development Trips Average Weekday AM Peak -Hour 1. me y 0 1. ® y 72 1 286 214 0 68 4 t2 b b 42nd Avenue S Q 5 a 0 17 t2 12 311 S 142nd Street 34 17 42nd Avenue S 0 1 209 1 13 80 302 1 222 20 1 37 17 0 0 20 t2 b b 42nd Avenue S Q E96 a 113 t2 247 S 142nd Street 247 134 42nd Avenue S 0 114 96 210 111 4 T North I T North I T North I Future Dev. Volumes 92 323 231 Average Weekday 0 1 68 24 AM Peak -Hour t2 b b Site Access Q 0 E22 a 130 t2 8 T 0 - -- 558 S 142nd Street 281 North 0 0 b 151 0 b 42nd Avenue S Q .9 Z� 0 1 209 1 127 176 512 1 336 B -4 176 42nd Ave S S 144th St Meizu N,fi I De,r &Surveying &—i-, Date: Tue, Sep 20, 2016 Count Period: 1:30 PM to 3:30 PM Peak Hour: 2:30 PM to 3:30 PM " w> 0 HV %: PHF < B EB 1.8% 0.95 I WB 1.4% 0.82 124 37 1 892 `r NB 1.1% 0.75 Westbound SB 4.4% 0.71 Interval Southbound TOTAL 2.1% 0.91 4-10 Peak Hour j 0 5 144th St 1 0 59 S 144th St 44 1 0 49 42nd Ave S 54 0 42nd Ave S 124 37 1 892 0 Interval Start count summary volumes include heavy vehicles but exclude bicycles in overall count. Eastbound Westbound Northbound Interval Southbound 15 -min Total Rolling One Hot Bicycles UT LT TH RT UT LT TH RT UT LT TH RT UT LT TH RT SB Total 1:30 PM 0 3 21 9 0 7 24 12 0 8 28 9 0 6 21 7 155 0 1:45 PM 0 5 24 9 0 5 19 11 0 12 19 10 0 4 21 11 150 0 2:00 PM 0 9 28 15 0 6 33 6 1 9 19 12 0 5 14 5 162 0 2:15 PM 0 7 22 11 0 3 31 15 0 14 14 18 0 11 14 6 166 633 Peak Hour j 0 33 150 38 1 0 59 179 44 1 0 49 81 54 0 44 124 37 1 892 0 Note: Two -hour count summary volumes include heavy vehicles but exclude bicycles in overall count. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) Start EB WB NB SB Total EB WB NB SB Total East West North South Total 1:30 PM 2 5 1 1 9 0 0 0 0 0 1 1 2 1 5 1:45 PM 0 3 1 3 7 0 0 0 0 0 0 0 3 0 3 2:00 PM 2 3 3 2 10 0 1 0 0 1 1 2 6 1 10 2:15 PM 1 0 3 2 6 0 0 1 0 1 0 2 5 1 8 2:30 PM 2 1 0 7 10 0 4 0 0 4 54 12 235 3 304 2:45 PM 1 2 1 1 5 1 0 0 0 1 30 6 84 4 124 3:00 PM 1 1 1 0 3 0 0 0 0 0 6 7 25 1 39 3:15 PM 0 0 0 1 1 0 0 0 1 1 6 4 14 0 24 Count Total 9 15 10 17 51 1 5 1 1 8 98 34 374 11 517 Peak Hour 4 4 2 9 19 1 1 4 0 1 6 96 29 358 8 491 B -5 177 42nd Ave S S 142nd St Meizu N,fi I De,r &Surveying &—i-, Date: Tue, Sep 20, 2016 Count Period: 1:30 PM to 3:30 PM Peak Hour: 2:30 PM to 3:30 PM ,"..) "' w> 0 HV %: PHF < B EB 0.0% 0.50 I WB 0.0% 0.45 178 0 1 366 `r NB 2.3% 0.91 .00w .~w SB 2.7% 0.79 Interval Heavy Vehicle Totals TOTAL 2.5% 0.87 4-10 Peak Hour j 0 5 142nd St 1 0 3 S 142nd St 6 1 0 3 42nd Ave S 11 0 42nd Ave S 178 0 1 366 0 Interval count summary volumes include heavy vehicles but exclude bicycles in overall count. Interval Heavy Vehicle Totals 15 -min Rolling Start Eastbound Pedestrians (Crossing Leg) Westbound Start EB Northbound Total EB Southbound NB Total One Hot East UT LT TH RT UT LT TH RT UT LT TH RT UT LT TH RT 0 0 1:30 PM 0 0 0 0 0 1 0 1 0 0 37 3 0 0 28 1 71 0 1:45 PM 0 0 0 1 0 4 0 1 0 1 37 0 0 0 29 1 74 0 2:00 PM 0 2 0 0 0 0 0 2 0 1 32 2 0 1 28 0 68 0 2:15 PM 0 0 0 0 0 0 0 0 0 0 30 1 0 0 40 1 72 285 Peak Hour j 0 1 0 1 1 0 3 0 6 1 0 3 158 11 0 5 178 0 1 366 0 Note: Two -hour count summary volumes include heavy vehicles but exclude bicycles in overall count. Interval Heavy Vehicle Totals Bicycles Pedestrians (Crossing Leg) Start EB WB NB SB Total EB WB NB SB Total East West North South Total 1:30 PM 0 0 1 1 2 0 0 0 0 0 0 1 0 0 1 1:45 PM 0 2 4 1 7 0 0 0 0 0 0 3 1 0 4 2:00 PM 1 0 2 3 6 0 0 1 0 1 3 0 0 0 3 2:15 PM 0 0 2 8 10 0 0 0 0 0 0 2 0 1 3 2:30 PM 0 0 3 4 7 0 0 0 0 0 25 13 10 6 54 2:45 PM 0 0 0 0 0 0 0 0 0 0 10 8 2 4 24 3:00 PM 0 0 1 1 2 0 0 0 0 0 1 3 1 1 6 3:15 PM 0 0 0 0 0 0 0 0 2 2 4 0 3 1 8 Count Total 1 2 13 18 34 0 0 1 2 3 43 30 17 13 103 Peak Hour 0 0 4 5 9 0 0 0 2 2 40 24 16 12 92 B-6 178 1 S 144th St at 42nd Ave S SynchroID: 1 90 167 77 Average Weekday Existing Volumes 1 32 1 10 205 363 158 b b Average Weekday 37 1 124 44 Q 9 School PM Peak t2 b b a 0 9 t2 o T 42nd Avenue S 167 Q Street 19 North 41 �' Year: 9/20/2016 265 41 0 b a ff179 282 0 b 42nd Avenue S Q t2 Z� T Data Source: INDS 27 486 S 144th Street 892 S 144th Street 530 27 North Future w Dev. Volumes 335 33 266 Average Weekday 92 1 180 63 School PM Peak t2 1!138 50 b 248 Q 62 365 b a 214 346 42nd Avenue S 70 T 669 S 144th Street 1,232 Q .9 Z� 49 81 54 306 45 b 221 405 184 Q .9 Baseline Volumes 59 1 124 1 64 245 434 189 Average Weekday 247 44 1 148 53 School PM Peak t2 b b 42nd Avenue S Q 53 Year: 2022 317 a 214 337 Growth Rate = 3.0% � 70 T Years of Growth = 6 580 S 144th Street 1,065 S 144th Street 633 North Total Growth = 1.1941 39 263 179 b 296 45 b 42nd Avenue S Q .9 Z� 59 97 1 64 263 483 1 220 Development Trips 90 167 77 Average Weekday 48 1 32 1 10 School PM Peak t2 b b 42nd Avenue S Q 9 48 a 0 9 t2 o T 89 S 144th Street 167 S 144th Street 19 North 41 �' 41 0 b 10 0 b 42nd Avenue S Q .9 Z� 0 27 0 32 59 27 Future w Dev. Volumes 335 601 266 Average Weekday 92 1 180 63 School PM Peak t2 b b Site Access Q 62 365 a 214 346 70 T 669 S 144th Street 1,232 S 144th Street 652 North 80 �' 304 179 b 306 45 b 42nd Avenue S Q .9 Z� 59 1 124 1 64 295 542 1 247 B -7 179 2 S 142nd St at 42nd Ave S SynchroID: 2 233 445 212 Average Weekday 0 Existing Volumes 20 183 347 164 b Average Weekday 0 1 178 5 Site Access School PM Peak t2 b b a117 ff94 42nd Avenue S Q 6 Year: 9/20/2016 0 629 S 142nd Street 227 North a 0 9 0 0 b 3 Data Source: INDS 0 - -- 110 361 S 142nd Street 25 Q .9 Z� 0 0 b 0 1 189 1 16 0 b 586 1 42nd Avenue S Q .9 Z� 0 1 158 1 11 181 350 1 169 Baseline Volumes Average Weekday School PM Peak Year: 2022 Growth Rate = 3.0% Years of Growth = 6 Total Growth = 1.1941 Development Trips Average Weekday School PM Peak 1. me y 0 1. ® y 219 415 196 0 213 6 t2 b b 42nd Avenue S Q 7 a 0 11 4 432 S 142nd Street 30 19 42nd Avenue S Q .9 Z� 0 1 189 1 13 217 419 1 202 14 1 30 16 0 0 14 t2 b b 42nd Avenue S Q 16 a 0 106 t2 90 197 S 142nd Street 197 91 42nd Avenue S Q .9 Z� 0 0 1 77 90 167 77 T North I T North I T North I Future Volumes 233 445 212 Average Weekday 0 1 213 20 School PM Peak t2 b b Site Access Q 0 a117 ff94 � T 0 - -- 629 S 142nd Street 227 North 0 0 b 110 0 b 42nd Avenue S Q .9 Z� 0 1 189 1 90 307 586 1 279 B -8 180 Level of Service Calculations 181 HCM 2010 AWSC 1: 42nd Avenue S & S 144th Street Tukwila School Birth to K Intersection Intersection Delay, s /veh 12 Intersection LOS B Movement EBU EBL EBT EBR WBU WBL WBT WBR NBU NBL NBT NBR Lane Configurations 17% 18% 23% 41% Vol Thru, % 55% 67% 51% 39% Vol Right, % 28% 15% Traffic Vol, veh /h 0 33 123 27 0 46 105 53 0 36 115 59 Future Vol, veh /h 0 33 123 27 0 46 105 53 0 36 115 59 Peak Hour Factor 0.92 0.80 0.80 0.80 0.92 0.80 0.80 0.80 0.92 0.80 0.80 0.80 Heavy Vehicles, % 2 5 5 5 2 5 5 5 2 5 5 5 Mvmt Flow 0 41 154 34 0 58 131 66 0 45 144 74 Number of Lanes 0 0 1 0 0 0 1 0 0 0 1 0 Approach 1.6 EB 1.2 WB NB Opposing Approach WB EB SB Opposing Lanes 1 1 1 Conflicting Approach Left SB NB EB Conflicting Lanes Left 1 1 1 Conflicting Approach Right NB SB WB Conflicting Lanes Right 1 1 1 HCM Control Delay 11.9 12.2 12.4 HCM LOS B B B Lane NBLn1 EBLn1 WBLn1 SBLn1 Vol Left, % 17% 18% 23% 41% Vol Thru, % 55% 67% 51% 39% Vol Right, % 28% 15% 26% 19% Sign Control Stop Stop Stop Stop Traffic Vol by Lane 210 183 204 145 LT Vol 36 33 46 60 Through Vol 115 123 105 57 RT Vol 59 27 53 28 Lane Flow Rate 262 229 255 181 Geometry Grp 1 1 1 1 Degree of Util (X) 0.404 0.359 0.393 0.291 Departure Headway (Hd) 5.542 5.642 5.542 5.786 Convergence,Y /N Yes Yes Yes Yes Cap 646 634 645 618 Service Time 3.604 3.705 3.603 3.853 HCM Lane V/C Ratio 0.406 0.361 0.395 0.293 HCM Control Delay 12.4 11.9 12.2 11.2 HCM Lane LOS B B B B HCM 95th -tile Q 2 1.6 1.9 1.2 2016 Existing Conditions Gibson Traffic Consultants, Inc. [BJL 16 -1781 182 AM Peak -Hour C -1 HCM 2010 AWSC 1: 42nd Avenue S & S 144th Street Tukwila School Birth to K Intersection Intersection Delay, s /veh Intersection LOS Movement SBU SBL SBT SBR Lane Configurations Traffic Vol, veh /h 0 60 57 28 Future Vol, veh /h 0 60 57 28 Peak Hour Factor 0.92 0.80 0.80 0.80 Heavy Vehicles, % 2 5 5 5 Mvmt Flow 0 75 71 35 Number of Lanes 0 0 1 0 Approach SB Opposing Approach NB Opposing Lanes 1 Conflicting Approach Left WB Conflicting Lanes Left 1 Conflicting Approach Right EB Conflicting Lanes Right 1 HCM Control Delay 11.2 HCM LOS B 2016 Existing Conditions AM Peak -Hour Gibson Traffic Consultants, Inc. [BJL 16 -1781 C -2 183 HCM 2010 TWSC 2: 42nd Avenue S & S 142nd Street Tukwila School Birth to K Intersection Int Delay, s /veh 0.7 Movement WBL WBR NBT NBR SBL SBT Lane Configurations Y 1� Major1 Major2 +T Traffic Vol, veh /h 10 4 175 11 3 57 Future Vol, veh /h 10 4 175 11 3 57 Conflicting Peds, # /hr 0 0 0 0 0 0 Sign Control Stop Stop Free Free Free Free RT Channelized - None - None None Storage Length 0 3.426 2.245 - Veh in Median Storage, # 0 0 1293 Stage 1 0 Grade, % 0 - 0 Stage 2 893 0 Peak Hour Factor 70 70 73 73 62 62 Heavy Vehicles, % 14 14 6 6 5 5 Mvmt Flow 14 6 240 15 5 92 Major /Minor Minor1 Major1 Major2 Conflicting Flow All 349 247 0 0 255 0 Stage 1 247 - - - - - Stage 2 102 - - Critical Hdwy 6.54 6.34 4.15 Critical Hdwy Stg 1 5.54 - - Critical Hdwy Stg 2 5.54 - - Follow -up Hdwy 3.626 3.426 2.245 Pot Cap -1 Maneuver 625 763 1293 Stage 1 767 - - Stage 2 893 - - Platoon blocked, % Mov Cap -1 Maneuver 623 763 1293 Mov Cap -2 Maneuver 623 - - Stage 1 767 Stage 2 889 Approach WB NB SB HCM Control Delay, s 10.7 0 0.4 HCM LOS B Minor Lane /Major Mvmt NBT NBRWBLn1 SBL SBT Capacity (veh /h) 657 1293 HCM Lane V/C Ratio 0.03 0.004 HCM Control Delay (s) 10.7 7.8 0 HCM Lane LOS B A A HCM 95th %tile Q(veh) 0.1 0 - 2016 Existing Conditions Gibson Traffic Consultants, Inc. [BJL 16 -1781 WE AM Peak -Hour C -3 Lanes, Volumes, Timings 1: 42nd Avenue S & S 144th Street Tukwila School Birth to K -0. � !* Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations Traffic Volume (vph) 39 147 32 55 125 63 43 137 70 72 68 33 Future Volume (vph) 39 147 32 55 125 63 43 137 70 72 68 33 Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 Lane Util. Factor 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Frt 0.980 0.965 0.962 0.974 Flt Protected 0.991 0.989 0.991 0.980 Satd. Flow (prot) 0 1757 0 0 1727 0 0 1725 0 0 1727 0 Flt Permitted 0.892 0.864 0.910 0.797 Satd. Flow (perm) 0 1582 0 0 1509 0 0 1584 0 0 1405 0 Right Turn on Red Yes Yes Yes Yes Satd. Flow (RTOR) 18 37 41 24 Link Speed (mph) 30 30 30 30 Link Distance (ft) 526 2207 379 654 Travel Time (s) 12.0 50.2 8.6 14.9 Peak Hour Factor 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 Heavy Vehicles ( %) 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% Shared Lane Traffic ( %) Lane Group Flow (vph) 0 273 0 0 304 0 0 313 0 0 216 0 Turn Type Perm NA Perm NA Perm NA Perm NA Protected Phases 4 8 2 6 Permitted Phases 4 8 2 6 Detector Phase 4 4 8 8 2 2 6 6 Switch Phase Minimum Initial (s) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 Minimum Split (s) 22.5 22.5 22.5 22.5 22.5 22.5 22.5 22.5 Total Split (s) 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 Total Split ( %) 50.0% 50.0% 50.0% 50.0% 50.0% 50.0% 50.0% 50.0% Yellow Time (s) 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 All -Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Lost Time Adjust (s) 0.0 0.0 0.0 0.0 Total Lost Time (s) 4.5 4.5 4.5 4.5 Lead /Lag Lead -Lag Optimize? Recall Mode None None None None Min Min Min Min Act Effct Green (s) 11.7 11.7 11.5 11.5 Actuated g/C Ratio 0.36 0.36 0.35 0.35 v/c Ratio 0.48 0.54 0.54 0.43 Control Delay 11.4 12.1 11.8 10.8 Queue Delay 0.0 0.0 0.0 0.0 Total Delay 11.4 12.1 11.8 10.8 LOS B B B B Approach Delay 11.4 12.1 11.8 10.8 Approach LOS B B B B Queue Length 50th (ft) 29 31 32 22 Queue Length 95th (ft) 82 88 90 65 Internal Link Dist (ft) 446 2127 299 574 Turn Bay Length (ft) Base Capacity (vph) 1276 1221 1282 1135 2022 Baseline Conditions AM Peak -Hour Gibson Traffic Consultants, Inc. [BJL 16 -1781 LIM 185 Lanes, Volumes, Timings 1: 42nd Avenue S & S 144th Street Tukwila School Birth to K Analysis Period (min) 15 its and Phases: 1: 42nd Avenue S & S 144th Street 2022 Baseline Conditions Gibson Traffic Consultants, Inc. [BJL 16 -1781 W.M. AM Peak -Hour C -5 Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Starvation Cap Reductn 0 0 0 0 Spillback Cap Reductn 0 0 0 0 Storage Cap Reductn 0 0 0 0 Reduced v/c Ratio 0.21 0.25 0.24 0.19 Intersection Summary Area Type: Other Cycle Length: 60 Actuated Cycle Length: 32.9 Natural Cycle: 45 Control Type: Actuated - Uncoordinated Maximum v/c Ratio: 0.54 Intersection Signal Delay: 11.6 Intersection LOS: B Intersection Capacity Utilization 46.9% ICU Level of Service A Analysis Period (min) 15 its and Phases: 1: 42nd Avenue S & S 144th Street 2022 Baseline Conditions Gibson Traffic Consultants, Inc. [BJL 16 -1781 W.M. AM Peak -Hour C -5 HCM 2010 TWSC 2: 42nd Avenue S & S 142nd Street Tukwila School Birth to K Intersection Int Delay, s /veh 0.7 Movement WBL WBR NBT NBR SBL SBT Lane Configurations Y 1� Major1 Major2 +T Traffic Vol, veh /h 12 5 209 13 4 68 Future Vol, veh /h 12 5 209 13 4 68 Conflicting Peds, # /hr 0 0 0 0 0 0 Sign Control Stop Stop Free Free Free Free RT Channelized - None - None None Storage Length 0 3.426 2.245 - Veh in Median Storage, # 0 0 1240 Stage 1 0 Grade, % 0 - 0 Stage 2 874 0 Peak Hour Factor 70 70 73 73 62 62 Heavy Vehicles, % 14 14 6 6 5 5 Mvmt Flow 17 7 286 18 6 110 Major /Minor Minor1 Major1 Major2 Conflicting Flow All 418 295 0 0 304 0 Stage 1 295 - - - - - Stage 2 123 - - Critical Hdwy 6.54 6.34 4.15 Critical Hdwy Stg 1 5.54 - - Critical Hdwy Stg 2 5.54 - - Follow -up Hdwy 3.626 3.426 2.245 Pot Cap -1 Maneuver 569 717 1240 Stage 1 729 - - Stage 2 874 - - Platoon blocked, % Mov Cap -1 Maneuver 566 717 1240 Mov Cap -2 Maneuver 566 - - Stage 1 729 Stage 2 870 Approach WB NB SB HCM Control Delay, s 11.2 0 0.4 HCM LOS B Minor Lane /Major Mvmt NBT NBRWBLn1 SBL SBT Capacity (veh /h) 603 1240 HCM Lane V/C Ratio 0.04 0.005 HCM Control Delay (s) 11.2 7.9 0 HCM Lane LOS B A A HCM 95th %tile Q(veh) 0.1 0 - 2022 Baseline Conditions AM Peak -Hour Gibson Traffic Consultants, Inc. [BJL 16 -1781 C -6 187 Lanes, Volumes, Timings 1: 42nd Avenue S & S 144th Street Tukwila School Birth to K -0. � !* Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations Traffic Volume (vph) 99 147 32 55 125 77 43 177 70 83 102 84 Future Volume (vph) 99 147 32 55 125 77 43 177 70 83 102 84 Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 Lane Util. Factor 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Frt 0.984 0.960 0.967 0.958 Flt Protected 0.982 0.989 0.993 0.985 Satd. Flow (prot) 0 1749 0 0 1718 0 0 1738 0 0 1708 0 Flt Permitted 0.800 0.873 0.907 0.812 Satd. Flow (perm) 0 1424 0 0 1517 0 0 1587 0 0 1408 0 Right Turn on Red Yes Yes Yes Yes Satd. Flow (RTOR) 14 45 33 47 Link Speed (mph) 30 30 30 30 Link Distance (ft) 526 2207 379 654 Travel Time (s) 12.0 50.2 8.6 14.9 Peak Hour Factor 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 Heavy Vehicles ( %) 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% Shared Lane Traffic ( %) Lane Group Flow (vph) 0 348 0 0 321 0 0 363 0 0 337 0 Turn Type Perm NA Perm NA Perm NA Perm NA Protected Phases 4 8 2 6 Permitted Phases 4 8 2 6 Detector Phase 4 4 8 8 2 2 6 6 Switch Phase Minimum Initial (s) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 Minimum Split (s) 22.5 22.5 22.5 22.5 22.5 22.5 22.5 22.5 Total Split (s) 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 Total Split ( %) 50.0% 50.0% 50.0% 50.0% 50.0% 50.0% 50.0% 50.0% Yellow Time (s) 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 All -Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Lost Time Adjust (s) 0.0 0.0 0.0 0.0 Total Lost Time (s) 4.5 4.5 4.5 4.5 Lead /Lag Lead -Lag Optimize? Recall Mode None None None None Min Min Min Min Act Effct Green (s) 15.0 15.0 14.4 14.4 Actuated g/C Ratio 0.38 0.38 0.37 0.37 v/c Ratio 0.63 0.53 0.60 0.62 Control Delay 16.2 12.4 14.6 15.0 Queue Delay 0.0 0.0 0.0 0.0 Total Delay 16.2 12.4 14.6 15.0 LOS B B B B Approach Delay 16.2 12.4 14.6 15.0 Approach LOS B B B B Queue Length 50th (ft) 50 38 50 43 Queue Length 95th (ft) 134 107 127 117 Internal Link Dist (ft) 446 2127 299 574 Turn Bay Length (ft) Base Capacity (vph) 1009 1084 1130 1008 2016 Future Conditions with Development Gibson Traffic Consultants, Inc. [BJL 16 -1781 AM Peak -Hour C -7 Lanes, Volumes, Timings 1: 42nd Avenue S & S 144th Street Tukwila School Birth to K Analysis Period (min) 15 its and Phases: 1: 42nd Avenue S & S 144th Street 2016 Future Conditions with Development AM Peak -Hour Gibson Traffic Consultants, Inc. [BJL 16 -1781 C -8 189 Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Starvation Cap Reductn 0 0 0 0 Spillback Cap Reductn 0 0 0 0 Storage Cap Reductn 0 0 0 0 Reduced v/c Ratio 0.34 0.30 0.32 0.33 Intersection Summary Area Type: Other Cycle Length: 60 Actuated Cycle Length: 39.3 Natural Cycle: 45 Control Type: Actuated - Uncoordinated Maximum v/c Ratio: 0.63 Intersection Signal Delay: 14.6 Intersection LOS: B Intersection Capacity Utilization 60.7% ICU Level of Service B Analysis Period (min) 15 its and Phases: 1: 42nd Avenue S & S 144th Street 2016 Future Conditions with Development AM Peak -Hour Gibson Traffic Consultants, Inc. [BJL 16 -1781 C -8 189 HCM 2010 TWSC 2: 42nd Avenue S & S 142nd Street Tukwila School Birth to K Intersection Int Delay, s /veh 4.5 Movement WBL WBR NBT NBR SBL SBT Lane Configurations Y 1� Major1 Major2 +T Traffic Vol, veh /h 108 22 209 127 24 68 Future Vol, veh /h 108 22 209 127 24 68 Conflicting Peds, # /hr 0 0 0 0 0 0 Sign Control Stop Stop Free Free Free Free RT Channelized - None - None None Storage Length 0 3.426 2.245 - Veh in Median Storage, # 0 0 1085 Stage 1 0 Grade, % 0 - 0 Stage 2 817 0 Peak Hour Factor 70 70 73 73 62 62 Heavy Vehicles, % 14 14 6 6 5 5 Mvmt Flow 154 31 286 174 39 110 Major /Minor Minor1 Major1 Major2 Conflicting Flow All 560 373 0 0 460 0 Stage 1 373 - - - - - Stage 2 187 - - Critical Hdwy 6.54 6.34 4.15 Critical Hdwy Stg 1 5.54 - - Critical Hdwy Stg 2 5.54 - - Follow -up Hdwy 3.626 3.426 2.245 Pot Cap -1 Maneuver 470 647 1085 Stage 1 671 - - Stage 2 817 - - Platoon blocked, % Mov Cap -1 Maneuver 452 647 1085 Mov Cap -2 Maneuver 452 - - Stage 1 671 Stage 2 786 Approach WB NB SB HCM Control Delay, s 17.3 0 2.2 HCM LOS C Minor Lane /Major Mvmt NBT NBRWBLn1 SBL SBT Capacity (veh /h) 476 1085 HCM Lane V/C Ratio 0.39 0.036 HCM Control Delay (s) 17.3 8.4 0 HCM Lane LOS C A A HCM 95th %tile Q(veh) 1.8 0.1 - 2016 Future Conditions with Development Gibson Traffic Consultants, Inc. [BJL 16 -1781 190 AM Peak -Hour C -9 HCM 2010 AWSC 1: 42nd Avenue S & S 144th Street Tukwila School Birth to K Intersection Intersection Delay, s /veh 12.6 Intersection LOS B Movement EBU EBL EBT EBR WBU WBL WBT WBR NBU NBL NBT NBR Lane Configurations 27% 15% 21% 21% Vol Thru, % 44% 68% 63% 60% Vol Right, % 29% 17% Traffic Vol, veh /h 0 33 150 38 0 59 179 44 0 49 81 54 Future Vol, veh /h 0 33 150 38 0 59 179 44 0 49 81 54 Peak Hour Factor 0.92 0.91 0.91 0.91 0.92 0.91 0.91 0.91 0.92 0.91 0.91 0.91 Heavy Vehicles, % 2 2 2 2 2 2 2 2 2 2 2 2 Mvmt Flow 0 36 165 42 0 65 197 48 0 54 89 59 Number of Lanes 0 0 1 0 0 0 1 0 0 0 1 0 Approach 1.8 EB 1.7 WB NB Opposing Approach WB EB SB Opposing Lanes 1 1 1 Conflicting Approach Left SB NB EB Conflicting Lanes Left 1 1 1 Conflicting Approach Right NB SB WB Conflicting Lanes Right 1 1 1 HCM Control Delay 12.2 13.7 11.7 HCM LOS B B B Lane NBLn1 EBLn1 WBLn1 SBLn1 Vol Left, % 27% 15% 21% 21% Vol Thru, % 44% 68% 63% 60% Vol Right, % 29% 17% 16% 18% Sign Control Stop Stop Stop Stop Traffic Vol by Lane 184 221 282 205 LT Vol 49 33 59 44 Through Vol 81 150 179 124 RT Vol 54 38 44 37 Lane Flow Rate 202 243 310 225 Geometry Grp 1 1 1 1 Degree of Util (X) 0.325 0.381 0.478 0.363 Departure Headway (Hd) 5.792 5.651 5.556 5.801 Convergence, Y/N Yes Yes Yes Yes Cap 617 634 645 617 Service Time 3.869 3.723 3.624 3.875 HCM Lane V/C Ratio 0.327 0.383 0.481 0.365 HCM Control Delay 11.7 12.2 13.7 12.2 HCM Lane LOS B B B B HCM 95th -tile Q 1.4 1.8 2.6 1.7 2016 Existing Conditions School PM Peak Gibson Traffic Consultants, Inc. [BJL 16 -1781 C -10 191 HCM 2010 AWSC 1: 42nd Avenue S & S 144th Street Tukwila School Birth to K Intersection Intersection Delay, s /veh Intersection LOS Movement SBU SBL SBT SBR Lane Configurations Traffic Vol, veh /h 0 44 124 37 Future Vol, veh /h 0 44 124 37 Peak Hour Factor 0.92 0.91 0.91 0.91 Heavy Vehicles, % 2 2 2 2 Mvmt Flow 0 48 136 41 Number of Lanes 0 0 1 0 Approach SB Opposing Approach NB Opposing Lanes 1 Conflicting Approach Left WB Conflicting Lanes Left 1 Conflicting Approach Right EB Conflicting Lanes Right 1 HCM Control Delay 12.2 HCM LOS B 2016 Existing Conditions Gibson Traffic Consultants, Inc. [BJL 16 -1781 192 School PM Peak C -11 HCM 2010 TWSC 2: 42nd Avenue S & S 142nd Street Tukwila School Birth to K Intersection Int Delay, s /veh 0.6 Movement WBL WBR NBT NBR SBL SBT Lane Configurations Y 1� Major1 Major2 +T Traffic Vol, veh /h 3 6 158 11 5 178 Future Vol, veh /h 3 6 158 11 5 178 Conflicting Peds, # /hr 0 0 0 0 0 0 Sign Control Stop Stop Free Free Free Free RT Channelized - None - None None Storage Length 0 3.3 2.227 - Veh in Median Storage, # 0 0 1382 Stage 1 0 Grade, % 0 - 0 Stage 2 806 0 Peak Hour Factor 45 45 91 91 79 79 Heavy Vehicles, % 0 0 2 2 3 3 Mvmt Flow 7 13 174 12 6 225 Major /Minor Minor1 Major1 Major2 Conflicting Flow All 418 180 0 0 186 0 Stage 1 180 - - - - - Stage 2 238 - - Critical Hdwy 6.4 6.2 4.13 Critical Hdwy Stg 1 5.4 - - Critical Hdwy Stg 2 5.4 - - Follow -up Hdwy 3.5 3.3 2.227 Pot Cap -1 Maneuver 595 868 1382 Stage 1 856 - - Stage 2 806 - - Platoon blocked, % Mov Cap -1 Maneuver 592 868 1382 Mov Cap -2 Maneuver 592 - - Stage 1 856 Stage 2 802 Approach WB NB SB HCM Control Delay, s 9.9 0 0.2 HCM LOS A Minor Lane /Major Mvmt NBT NBRWBLn1 SBL SBT Capacity (veh /h) 751 1382 HCM Lane V/C Ratio 0.027 0.005 HCM Control Delay (s) 9.9 7.6 0 HCM Lane LOS A A A HCM 95th %tile Q(veh) 0.1 0 - 2016 Existing Conditions School PM Peak Gibson Traffic Consultants, Inc. [BJL 16 -1781 C -12 193 Lanes, Volumes, Timings 1: 42nd Avenue S & S 144th Street Tukwila School Birth to K -0. � !* Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations Traffic Volume (vph) 39 179 45 70 214 53 59 97 64 53 148 44 Future Volume (vph) 39 179 45 70 214 53 59 97 64 53 148 44 Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 Lane Util. Factor 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Frt 0.977 0.979 0.961 0.976 Flt Protected 0.993 0.990 0.987 0.989 Satd. Flow (prot) 0 1807 0 0 1805 0 0 1767 0 0 1798 0 Flt Permitted 0.905 0.872 0.862 0.879 Satd. Flow (perm) 0 1647 0 0 1590 0 0 1543 0 0 1598 0 Right Turn on Red Yes Yes Yes Yes Satd. Flow (RTOR) 23 21 40 21 Link Speed (mph) 30 30 30 30 Link Distance (ft) 526 2207 379 654 Travel Time (s) 12.0 50.2 8.6 14.9 Peak Hour Factor 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 Shared Lane Traffic ( %) Lane Group Flow (vph) 0 289 0 0 370 0 0 242 0 0 269 0 Turn Type Perm NA Perm NA Perm NA Perm NA Protected Phases 4 8 2 6 Permitted Phases 4 8 2 6 Detector Phase 4 4 8 8 2 2 6 6 Switch Phase Minimum Initial (s) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 Minimum Split (s) 22.5 22.5 22.5 22.5 22.5 22.5 22.5 22.5 Total Split (s) 32.0 32.0 32.0 32.0 28.0 28.0 28.0 28.0 Total Split ( %) 53.3% 53.3% 53.3% 53.3% 46.7% 46.7% 46.7% 46.7% Yellow Time (s) 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 All -Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Lost Time Adjust (s) 0.0 0.0 0.0 0.0 Total Lost Time (s) 4.5 4.5 4.5 4.5 Lead /Lag Lead -Lag Optimize? Recall Mode None None None None Min Min Min Min Act Effct Green (s) 13.1 13.1 11.0 11.0 Actuated g/C Ratio 0.39 0.39 0.33 0.33 v/c Ratio 0.44 0.59 0.46 0.50 Control Delay 9.8 12.4 11.4 13.0 Queue Delay 0.0 0.0 0.0 0.0 Total Delay 9.8 12.4 11.4 13.0 LOS A B B B Approach Delay 9.8 12.4 11.4 13.0 Approach LOS A B B B Queue Length 50th (ft) 30 42 25 31 Queue Length 95th (ft) 91 125 87 103 Internal Link Dist (ft) 446 2127 299 574 Turn Bay Length (ft) Base Capacity (vph) 1377 1330 1155 1191 Starvation Cap Reductn 0 0 0 0 2022 Baseline Conditions Gibson Traffic Consultants, Inc. [BJL 16 -1781 194 School PM Peak C -13 Lanes, Volumes, Timings 1: 42nd Avenue S & S 144th Street Tukwila School Birth to K Intersection Summary Area Type: Other Cycle Length: 60 Actuated Cycle Length: 33.7 Natural Cycle: 45 Control Type: Actuated - Uncoordinated Maximum v/c Ratio: 0.59 Intersection Signal Delay: 11.7 Intersection LOS: B Intersection Capacity Utilization 53.1% ICU Level of Service A Analysis Period (min) 15 2022 Baseline Conditions School PM Peak Gibson Traffic Consultants, Inc. [BJL 16 -1781 C -14 195 Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Spillback Cap Reductn 0 0 0 0 Storage Cap Reductn 0 0 0 0 Reduced v/c Ratio 0.21 0.28 0.21 0.23 Intersection Summary Area Type: Other Cycle Length: 60 Actuated Cycle Length: 33.7 Natural Cycle: 45 Control Type: Actuated - Uncoordinated Maximum v/c Ratio: 0.59 Intersection Signal Delay: 11.7 Intersection LOS: B Intersection Capacity Utilization 53.1% ICU Level of Service A Analysis Period (min) 15 2022 Baseline Conditions School PM Peak Gibson Traffic Consultants, Inc. [BJL 16 -1781 C -14 195 HCM 2010 TWSC 2: 42nd Avenue S & S 142nd Street Tukwila School Birth to K Intersection Int Delay, s /veh 0.6 Movement WBL WBR NBT NBR SBL SBT Lane Configurations Y 1� Major1 Major2 +T Traffic Vol, veh /h 4 7 189 13 6 213 Future Vol, veh /h 4 7 189 13 6 213 Conflicting Peds, # /hr 0 0 0 0 0 0 Sign Control Stop Stop Free Free Free Free RT Channelized - None - None None Storage Length 0 3.3 2.227 - Veh in Median Storage, # 0 0 1341 Stage 1 0 Grade, % 0 - 0 Stage 2 768 0 Peak Hour Factor 45 45 91 91 79 79 Heavy Vehicles, % 0 0 2 2 3 3 Mvmt Flow 9 16 208 14 8 270 Major /Minor Minor1 Major1 Major2 Conflicting Flow All 500 215 0 0 222 0 Stage 1 215 - - - - - Stage 2 285 - - Critical Hdwy 6.4 6.2 4.13 Critical Hdwy Stg 1 5.4 - - Critical Hdwy Stg 2 5.4 - - Follow -up Hdwy 3.5 3.3 2.227 Pot Cap -1 Maneuver 534 830 1341 Stage 1 826 - - Stage 2 768 - - Platoon blocked, % Mov Cap -1 Maneuver 530 830 1341 Mov Cap -2 Maneuver 530 - - Stage 1 826 Stage 2 763 Approach WB NB SB HCM Control Delay, s 10.4 0 0.2 HCM LOS B Minor Lane /Major Mvmt NBT NBRWBLn1 SBL SBT Capacity (veh /h) 688 1341 HCM Lane V/C Ratio 0.036 0.006 HCM Control Delay (s) 10.4 7.7 0 HCM Lane LOS B A A HCM 95th %tile Q(veh) 0.1 0 - 2022 Baseline Conditions Gibson Traffic Consultants, Inc. [BJL 16 -1781 196 School PM Peak C -15 Lanes, Volumes, Timings 1: 42nd Avenue S & S 144th Street Tukwila School Birth to K -0. � !* Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Lane Configurations Traffic Volume (vph) 80 179 45 70 214 62 59 124 64 63 180 92 Future Volume (vph) 80 179 45 70 214 62 59 124 64 63 180 92 Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 1900 Lane Util. Factor 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 Frt 0.980 0.976 0.965 0.963 Flt Protected 0.987 0.990 0.988 0.991 Satd. Flow (prot) 0 1802 0 0 1800 0 0 1776 0 0 1778 0 Flt Permitted 0.844 0.879 0.867 0.889 Satd. Flow (perm) 0 1541 0 0 1598 0 0 1558 0 0 1595 0 Right Turn on Red Yes Yes Yes Yes Satd. Flow (RTOR) 19 24 34 37 Link Speed (mph) 30 30 30 30 Link Distance (ft) 526 2207 379 654 Travel Time (s) 12.0 50.2 8.6 14.9 Peak Hour Factor 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 0.91 Shared Lane Traffic ( %) Lane Group Flow (vph) 0 334 0 0 380 0 0 271 0 0 368 0 Turn Type Perm NA Perm NA Perm NA Perm NA Protected Phases 4 8 2 6 Permitted Phases 4 8 2 6 Detector Phase 4 4 8 8 2 2 6 6 Switch Phase Minimum Initial (s) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 Minimum Split (s) 22.5 22.5 22.5 22.5 22.5 22.5 22.5 22.5 Total Split (s) 32.0 32.0 32.0 32.0 28.0 28.0 28.0 28.0 Total Split ( %) 53.3% 53.3% 53.3% 53.3% 46.7% 46.7% 46.7% 46.7% Yellow Time (s) 3.5 3.5 3.5 3.5 3.5 3.5 3.5 3.5 All -Red Time (s) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Lost Time Adjust (s) 0.0 0.0 0.0 0.0 Total Lost Time (s) 4.5 4.5 4.5 4.5 Lead /Lag Lead -Lag Optimize? Recall Mode None None None None Min Min Min Min Act Effct Green (s) 14.5 14.5 13.7 13.7 Actuated g/C Ratio 0.38 0.38 0.36 0.36 v/c Ratio 0.56 0.61 0.47 0.62 Control Delay 13.3 14.1 12.0 14.9 Queue Delay 0.0 0.0 0.0 0.0 Total Delay 13.3 14.1 12.0 14.9 LOS B B B B Approach Delay 13.3 14.1 12.0 14.9 Approach LOS B B B B Queue Length 50th (ft) 43 50 32 48 Queue Length 95th (ft) 135 155 109 155 Internal Link Dist (ft) 446 2127 299 574 Turn Bay Length (ft) Base Capacity (vph) 1181 1225 1061 1087 Starvation Cap Reductn 0 0 0 0 2022 Future Conditions with Development School PM Peak Gibson Traffic Consultants, Inc. [BJL 16 -1781 C -16 197 Lanes, Volumes, Timings 1: 42nd Avenue S & S 144th Street Tukwila School Birth to K � � !* Lane Group EBL EBT EBR WBL WBT WBR NBL NBT NBR SBL SBT SBR Spillback Cap Reductn 0 0 0 0 Storage Cap Reductn 0 0 0 0 Reduced v/c Ratio 0.28 0.31 0.26 0.34 Intersection Summary Area Type: Other Cycle Length: 60 Actuated Cycle Length: 38 Natural Cycle: 45 Control Type: Actuated - Uncoordinated Maximum v/c Ratio: 0.62 Intersection Signal Delay: 13.7 Intersection LOS: B Intersection Capacity Utilization 55.1% ICU Level of Service B Analysis Period (min) 15 2022 Future Conditions with Development Gibson Traffic Consultants, Inc. [BJL 16 -1781 W. School PM Peak C -17 HCM 2010 TWSC 2: 42nd Avenue S & S 142nd Street Tukwila School Birth to K Intersection Int Delay, s /veh 6 Movement WBL WBR NBT NBR SBL SBT Lane Configurations Y 1� Major1 Major2 +T Traffic Vol, veh /h 94 23 189 90 20 213 Future Vol, veh /h 94 23 189 90 20 213 Conflicting Peds, # /hr 0 0 0 0 0 0 Sign Control Stop Stop Free Free Free Free RT Channelized - None - None None Storage Length 0 3.3 2.227 - Veh in Median Storage, # 0 0 1248 Stage 1 0 Grade, % 0 - 0 Stage 2 741 0 Peak Hour Factor 45 45 91 91 79 79 Heavy Vehicles, % 0 0 2 2 3 3 Mvmt Flow 209 51 208 99 25 270 Major /Minor Minor1 Major1 Major2 Conflicting Flow All 577 257 0 0 307 0 Stage 1 257 - - - - - Stage 2 320 - - Critical Hdwy 6.4 6.2 4.13 Critical Hdwy Stg 1 5.4 - - Critical Hdwy Stg 2 5.4 - - Follow -up Hdwy 3.5 3.3 2.227 Pot Cap -1 Maneuver 482 787 1248 Stage 1 791 - - Stage 2 741 - - Platoon blocked, % Mov Cap -1 Maneuver 470 787 1248 Mov Cap -2 Maneuver 470 - - Stage 1 791 Stage 2 723 Approach WB NB SB HCM Control Delay, s 19.2 0 0.7 HCM LOS C Minor Lane /Major Mvmt NBT NBRWBLn1 SBL SBT Capacity (veh /h) 510 1248 HCM Lane V/C Ratio 0.51 0.02 HCM Control Delay (s) 19.2 7.9 0 HCM Lane LOS C A A HCM 95th %tile Q(veh) 2.9 0.1 - 2022 Future Conditions with Development School PM Peak Gibson Traffic Consultants, Inc. [BJL 16 -1781 C -18 199 200 February 28, 2017_ ....... ........................REVISED MAY 1„ 2017 Ms. Lindsay Brown City of Tukwila Department of Community Development 6400 Southcenter Boulevard Tukwila, WA 98188 Project: Foster High School Modernization and Additions and New Birth -to- Kindergarten Center, AHBL No. 2160226.30 Subject: Consistency with Variance Criteria Dear Lindsay: RECEIVED MAY 2 Cornimunky Development Tukwila School District is seeking variances for the Foster High School Modernization and Addition project and the new Birth -to- Kindergarten Center. Concurrent with this variance request, we have submitted combined applications for a Conditional Use Permit (CUP) and Design Review for both projects, which include building elevations, floor plans, and site plans. A brief description of each project follows, together with a response to the criteria for approval. Brief Project Descriptions Foster High School Foster High School will be renovated, modernized, and the school expanded to accommodate smaller class sizes and a STEAM focus (Science, Technology, Engineering, Arts, and Math). With the new additions, the new building will be approximately 169,200 square feet (an expansion of approximately 56,100 square feet). The project will add 15 teaching stations /classrooms. New building areas will be added to the east elevation, and the existing open plaza area between the building wings will become part of the building as an interior courtyard. The existing transportation building and all portables will be demolished,. A new auxiliary gymnasium and fitness center /weight room will be added. Outdoor sports facility improvements include relocated tennis courts (total of four). The field area will be redesigned to accommodate one baseball field, one softball field, and two tennis courts. The new softball and baseball fields will have new fencing, backstops, dugouts, all- weather sand infields, and natural grass outfields, which will be irrigated. All new tennis courts will have new fencing, acrylic surfacing, and netting. The student parking lot between the school and pool building will be modified to accommodate the new building additions and fields. The total onsite parking provided is 174 spaces. An additional 11 spaces will be available for special events in the bus loop. ATTACHMENT J E A E 1200 0 Aveme Sufte i 201 Ms. Lindsay Brown February 28, 2017 REVISED MAY 1, 2017 2160226.30 Page 2 of 8������1�➢ Birth to Kindergarten Center A new 53,000 square -foot, two -story, Birth -to- Kindergarten Center will be built on a vacant lot that is contiguous to the existing Showalter Middle School and Foster High School campus. The first phase of the project will be to house all kindergarten and pre - school from around the District. Subsequent phases will add the infant and toddler programs, the timing for which is not yet known. The total facility capacity will be 440 students and 28 classrooms, of which 290 students and 17 classrooms will be full day kindergarten; 90 preschoolers plus infant and toddler programs of 30 -40 children (in split half -day and full -day programs). Each age group will have separate areas within the building and outdoor play areas. A courtyard meant to serve students and the larger community will be provided at the north side of the building. Pedestrian and vehicular access to the site will be from South 142nd Street along an existing easement between the church property and the middle school. The existing asphalt driveway adjacent to the church will be improved with new asphalt overlay, sidewalk, and pedestrian scale lighting. A simple 4 -way intersection is proposed at the vehicular entrance to the site, The project includes pedestrian walkways that will lead to the entrance of the building, and a bus loop /parking area at the west side of the building. Approximately 80 parking spaces will be provided in a new parking lot on the south side of the school building. Description of Variances Requested Foster High School Height Variances Building Height - Foster High School is located in the LDR zoning district, which requires a maximum height of 30 feet. The maximum height of the proposed Foster High School additions is proposed to be 32 feet; therefore, a 2 -foot variance is requested. As shown on the elevations, Sheets A3.11 through A3.13, the existing high school building exceeds the 30 -foot height limit in several areas. At the main entrance, the top of the roof is 41 feet high. The barrel vault on the rooftop is 37 feet in height and several parapets are 31 feet. The Performing Arts Center building is 65 feet in height. The variance seeks to match the height of the parapet on the proposed addition to the height of the existing building. An additional 1 foot of height is requested to accommodate needed flexibility throughout the design process. 2. Stadium Flagpole Height - The existing flagpole located at the north end of Foster High School stadium is proposed to be relocated to the southwest corner adjacent to the scoreboard. The flagpole is proposed to be 50 feet in height. The flagpole is exempt from the maximum height requirements per Tukwila Municipal Code (TMC) 18.42.030, as it is installed in conjunction with a permitted recreational use within the Public Recreation Overlay (PRO) district, as described below: "... when the underlying district is the LDR (Low- Density Residential) District, structures may be granted a height bonus of one additional foot of height for every four feet of excess setback (i.e., setback over and above the LDR minimum standard), up to a maximum height of 50 feet. Ancillary facilities customarily installed in conjunction with a permitted recreational use, including light standards and safety netting, shall not be subject to the height restrictions of the underlying district." 202 0 ©=0 Ms. Lindsay Brown �iiiiiiiiiiiiiiiiii ��� February 28, 2017 REVISED MAY 1, 2017g IV�� Page 3 of 8�������������������������� ' �iiilllll h 3. Sports Fields Netting and Fencing Height Variance — The new ball fields require a 10 -foot high chain link fence with 20 -foot high netting above the fence (total height of 30 feet). The tennis courts will also have 10 -foot high chain link perimeter fence.. The fencing will be located outside the required perimeter yard setback areas. These are customarily required to contain errant balls within the ball fields or courts. Pursuant to the code citation above, the ball fields and central two tennis courts are exempt from the height restrictions, as they are located in the PRO district. Birth -to- Kindergarten Center Height Variances The new Birth -to- Kindergarten (B2K) Center is also located in the LDR Zone with a PRO overlay. The height requested is 35 feet, which is a 5 -foot height variance. The LDR zoning district has a maximum building height of 30 feet, while the PRO overlay allows a maximum height depending on the location of the structure, up to a maximum of 50 feet. The use will not be for public recreation purposes, but rather for public education purposes; therefore, the variance is requested. The PRO allows 1 foot of additional height for every 4 feet of excess building setback. The table below shows the allowed building height for the B2K building based on its setback from the property lines. The table shows that the proposed height of 35 feet is within the allowable building height based on setbacks. ..__ ......................... ._........_.-a w _ ... _,_._. ................. .................... .� .................... .............................., w�w Birth -to- Kindergarten Center Maximum Buildinc_Height in Relationship to Setbacks Foster High School currently has 251 parking spaces. Figure 18 -7 in Tukwila's code lists the minimum parking as one for each staff member plus two for every five students or visitors. This is broken down as follows: There are 83 employees on campus = 83 spaces There are 878 students = (878/5) *2 = 351 spaces Total parking required by code = 434 spaces The property proposes to provide :1 7 1174 spaces to accommodate the daily use and better align with actual usage. The requested reduction in parking is greater than 10 percent of either the existing parking or the zoning required parking, and therefore requires Type III review.. Please see the submitted Parking Analysis and the narrative describing consistency with the variance criteria for the reduction in parking in Section B of this letter, below. R H B' Minimum Allowed Proposed Setback Maximum Height _______ .................._ Setback w /PRO Front .w_ ..-............................................................. ............................... 20 _ ........_....... 60 ..-._......._......................._.................... ............................... 40 feet Westside_.._._....._ ................................................................ ........................_...... 5 _. . 10 _....._ ...___...................______ -a' st S' de 5 . ................ 130 ..........................._._ 50 feet ....A....... Rear................ __ ................................... ............................... 10 .........................�. ......._... 120.._ ........ .._............................ 50 feet Foster High School Parking Variance Foster High School currently has 251 parking spaces. Figure 18 -7 in Tukwila's code lists the minimum parking as one for each staff member plus two for every five students or visitors. This is broken down as follows: There are 83 employees on campus = 83 spaces There are 878 students = (878/5) *2 = 351 spaces Total parking required by code = 434 spaces The property proposes to provide :1 7 1174 spaces to accommodate the daily use and better align with actual usage. The requested reduction in parking is greater than 10 percent of either the existing parking or the zoning required parking, and therefore requires Type III review.. Please see the submitted Parking Analysis and the narrative describing consistency with the variance criteria for the reduction in parking in Section B of this letter, below. R H B' REVISED MAY 1, 2017 A. Response to criteria for variance (TMC 18.72.020) — Height (Foster High School and Birth -to- Kindergarten Center) 1. The variance shall not constitute a grant of special privilege inconsistent with the limitation upon uses of other properties in the vicinity and in the zone in which the property on behalf of which the application was filed is located, Foster High School. Granting of a variance would not afford a special privilege, as the proposed height of the additions is still less than what already exists onsite and is needed for consistency in massing and design. The addition is generally located in the interior portions of the site and will not be visible from the front of the building. Birth -to- Kindergarten Center., The Birth -to- Kindergarten Center has developed a two - story building scheme in order to maximize site area for recreation space, access, landscaping, and parking. The height will be less than the adjacent Showalter Middle School and Foster High School. The Birth -to- Kindergarten Center will be up to 35 feet in height, 5 feet above the 30 -foot maximum allowed by the underlying LDR zoning, due to sloped roofs. It is not receiving a special privilege due to the fact that it is within the PRO, which allows 1 foot of increased height for each foot of additional setback (per TMC 18.42.030), which allows for a maximum height of 38 to 43 feet, depending on the specific setback being measured. The building is also tucked back and hidden from view of adjacent residential properties. 2. The variance is necessary because of special circumstances relating to the size, shape, topography, location or surrounding of the subject property in order to provide it with use rights and privileges permitted to other properties in the vicinity and in the zone in which the subject property is located, Foster High School. While Foster High School needs to modernize and expand to accommodate the student population; there is limited space onsite. The variance is necessary because, if the building met the 30 -foot height limit, it would need to expand horizontally, taking away space needed for parking, landscaping, and recreation. A flagpole will be placed on top of the existing football stadium, which may reach up to 50 feet in height. The flagpole is exempt from height requirements per TMC 18.42.030, as it is installed in conjunction with a permitted recreational use within the PRO; therefore, a special privilege is not requested. Birth -to- Kindergarten Center: The Birth -to- Kindergarten Center site is constrained by its size and by steep slopes on the eastern portion. In order to maximize site are for playgrounds, parking, and bus access, a two -story building scheme has been developed. The current proposed floor -to -floor height is 13.5 feet — essentially the minimum needed to fit the mechanical equipment above 8.5 -foot ceilings. However, using sloped roofs to modulate the building form results in an overall building height (measured to mid -point of sloped roof) that is over the 30 -foot limit. The design team has applied for a Height Variance to bring the allowed height to 35 feet. However, the Birth -to- Kindergarten Center site is within the PRO district, and therefore the height of the primary structure will conform to City regulations. NNIN 204 [D©OD Ms. Lindsay Brown February 28, 2017 REVISED MAY 1, 2017IIIIOOIIIIIIIIIIIUm 2160226.30 Page 5 of 8�������»» �������������������������������������������������������� 3. The granting of such variance will not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity and in the zone in which the subject property is situated, Foster High School. The additions to Foster High School will not exceed the existing height; walls fronting the street are up to 40 feet high and the Performing Arts Center is 65 feet high. The appearance of the Foster High School building will remain unchanged. The height of the additions will exceed the 30 -foot height limit due to parapets, an architectural feature that will improve the look of the building and match the height of the existing parapets. Moreover, the additions will be mostly hidden behind the existing building frontage, which has sloped roofs reaching 40 feet in height. The building and proposed additions are set back from the property line and will not affect the views of neighboring properties. The new structures and additions will be required to meet design review criteria, ensuring consistency and compatibility with surroundings. The height of the flagpole within the stadium creates a focal point for an important community gathering area and will be beneficial to the public welfare. The netting surrounding the sports fields will protect public safety and public property from errant balls traveling outside the fields. Birth -to- Kindergarten Center: The Birth -to- Kindergarten Center building is not directly visible from surrounding residential uses. Five single - family houses exist to the north of the site, but are largely hidden from view by a line of trees. It is bordered by wooded areas, Showalter Middle School, and a large church campus. The building will be set back from the property line, and one -story classrooms line the front of the building, reducing the apparent mass and scale of the building. It is not expected that the 35 -foot height will have any detrimental effect, visually or otherwise, on surrounding property or improvements. Any potential nuisances, such as light pollution or traffic, are addressed in the State Environmental Policy Act (SEPA) checklist and associated environmental studies. The new structures and additions will be required to meet design review criteria, ensuring consistency and compatibility with surroundings. 4. The authorization of such variance will not adversely affect the implementation of the Comprehensive Land Use Policy Plan; Foster High School and Birth -to Kindergarten Center. • As stated in the CUP application, . both the Foster High School additions and the new Birth -to- Kindergarten Center demonstrate consistency with the Comprehensive Plan. The relevant goals and policies are listed in the CUP cover letters. The additional height requested is marginal, but will allow the proposed structures enough capacity to meet neighborhood and community needs. Design of the building will be subject to a Type III Design Review process. 5. The granting of such variance is necessary for the preservation and enjoyment of a substantial property right of the applicant possessed by the owners of other properties in the same zone or vicinity. O© 1'TAM1W,MJ= .... 0 Foster High School. Both elementary and high schools are uses that are often located within Low Density Residential Zones. The requested variance will not afford Foster High School or the Birth -to- Kindergarten Center a right that is inconsistent with what is commonly enjoyed by educational facilities in residential areas in the City of Tukwila, Alternative designs have been explored for the Foster High School site, but are not possible without occupying more space on the site, which would require a further reduction in parking, as well as landscaping, or recreation uses. B. Response to criteria for variance (TMC 18.72.020) — Parking (Foster High School) 1. The variance shall not constitute a grant of special privilege inconsistent with the limitation upon uses of other properties in the vicinity and in the zone in which the property on behalf of which the application was filed is located, The majority of properties in the vicinity are residential uses subject to a different parking standard. The granting of this variance would not go beyond what is reasonable for a school use in an LDR zone, given the parking demand on this particular site. The reduction in parking is to allow for necessary school improvements, and should not be considered a special privilege. 2. The variance is necessary because of special circumstances relating to the size, shape, topography, location or surrounding of the subject property in order to provide it with use rights and privileges permitted to other properties in the vicinity and in the zone in which the subject property is located, Foster High School was built before current parking ratios had been adopted by the City, and therefore is a legally non - conforming use. A CUP was granted for this site in 2003 (L03 -051), 2008 (L08 -021), and 2013 (L13 -015). It has been shown through prior CUPs that the amount of parking that exists on the site is sufficient. At the time of the 2013 CUP, a study showed that only one -half to two - thirds of the parking was utilized. The staff report for that CUP noted that this may be due to variables such as the School District's small size, availability of public transportation, and levels of poverty in the area, which resulted in low car ownership. The City has indicated that the findings of previous CUPs are honored, and therefore the variance request should be considered as a variance from existing parking (251 spaces), rather than minimums stated in the current municipal code (434 spaces). The usable area of the site is not large enough to provide additional surface parking. The site cannot accommodate additional parking, as well as amenities needed such as classroom space, recreation area, interior landscaping, and bus lanes; therefore, the variance is necessary. 3. The granting of such variance will not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity and in the zone in which the subject property is situated, Parking demand is not expected to increase as a result of this project. The parking analysis (enclosed) demonstrates that the current available 251 parking spaces are utilized at an average rate of 62 percent and that the peak demand was for 131 spaces. The proposed parking exceeds the peak demand by spaces. liim ��h��io������s���� � Ili I 206 131803 Ms. Lindsay Brown ,i IN February 28, 2017 REVISED MAY 1, 2017 2160226.30 Ili Page 7 of 8�I��IIIIIIIIIIIIII�1111111111��V Special event parking will occur from time to time and visitors will have the use of 80 spaces available on the Birth -to- Kindergarten Center site, 122 spaces on the Showalter Middle School site, 33 spaces at the Foster Library Site (the proposed District Technology and Maintenance Building site), and 11 spaces in the Foster High School bus loop. All told, there will be 423420 spaces available for public events. The Performing Arts Center and Stadium have a capacity for 600 and 500 attendees, respectively. With a vehicle occupancy rate of 2.1, there is more than enough capacity for a single event and parking is not expected to spill over to adjacent properties or streets, The School District will coordinate special events to avoid schedule conflicts. 4. The authorization of such variance will not adversely affect the implementation of the Comprehensive Land Use Policy Plan; The school is within a residential area, and the authorization of the variance will not affect any of the goals stated in the residential element of the Comprehensive Plan. A reduction in parking will not negatively impact City goals, such as neighborhood quality (7.2 and 7.3), neighborhood sustainability (7.4), and neighborhood development (7.6).. The parking reduction will allow for improved site design and amenities that may actually assist with some of these goals. The Comprehensive Plan also encourages non - motorized access, and meeting the minimum parking requirements prescribed by code would create an excessive amount of parking compared to the actual demand on site. The variance is also consistent with the Capital Facilities Element of the Comprehensive Plan, by allowing for space to provide adequate school facilities to service growth in the City. Portions of the site are within the PRO, which is designated by the Comprehensive Plan as an area dedicated to passive and active public recreation uses, or public education uses. The variance is necessary to provide for adequate recreation facilities, such as ball fields, a stadium, and tennis courts. These facilities will be used by students, as well as the larger community. 5. The granting of such variance is necessary for the preservation and enjoyment of a substantial property right of the applicant possessed by the owners of other properties in the same zone or vicinity. Foster High School has occupied the site since 1992, and has not had a significant renovation since. Without a variance, the required modernizations for the current use would not be possible. The alternative to the variance would be to reduce the amount of recreation space and replace it with parking area. This alternative is rejected because parking studies have shown that the proposed amount of parking is more than adequate to sere demand, and that the proposed amount of recreation space is what is desired and necessary for the school campus. Therefore, granting of the variance is necessary for the enhancement, preservation, and enjoyment of Foster High School by students, staff, and the overall community. 018 � Ms. Lindsay Brown February 28, 2017 2160226.30 Page 8 of 8 Thank you for your review of the Variance application. If you have any questions, please call me at (253) 383-2422. Sincerely, UIRSISIMPUZA- 0 . Wx2m. FROMM= Je* Feeney, KMB Architects Dr. Judith Berry, Tukwila School District John Wegener, BLRB Architects 0:\2016\21602261tiWORDPROCtLetters\20170228 Ur (Variance-Resp to Criteria) 2160226.30.docx NO 208 C)IM130 . . ....... .... . ......... . . . Gibson Traffic Consultants 2813 Rockefeller Avenue Suite B Everett, WA 98201 425.339.8266 Tukwila School Campus Parking Analysis *NL-^ ATTACHMENT K February 2017 GTC # 16 -178 209 Tukwila School Campus Parking Analysis TABLE OF CONTENTS 1. DEVELOPMENT IDENTIFICATION ................................................... ............................... 1 2. METHODOLOGY .................................................................................... ..............................1 3. TYPICAL PARKING ANALYSIS .......................................................... ............................... 2 3.1 Existing Conditions ........................................................................... ............................... 2 3.2 Proposed Conditions ......................................................................... ............................... 2 4. EVENT PARKING ANALYSIS ............................................................. ............................... 3 5. CONCLUSIONS ...................................................................................... ............................... 3 LIST OF TABLES Table 1: Existing Parking Supply and Demand ............................................... ............................... 2 Table 2: Event Parking Demand ...................................................................... ............................... 3 Gibson Traffic Consultants, Inc. February 2017 info @gibsontraffic.com i GTC #16 -178 210 Tukwila School Campus Parking Analysis 1. DEVELOPMENT IDENTIFICATION Gibson Traffic Consultants, Inc. (GTC) has been retained to provide a parking analysis for the Tukwila School Campus, including Foster High School, Showalter Middle School and the proposed Birth to K school. Brad Lincoln, responsible for this report, is a licensed professional engineer (Civil) in the State of Washington and member of the Washington State section of ITE. The Tukwila School Campus is located along the north side of S 144 "' Street, east of 42 "d Avenue S. Foster High School has access to S 144 "' Street and 42 "d Avenue S and includes the technology building. Showalter Middle School is located east of Foster High School and has access to S 144 "' Street. The proposed Birth to K school is located north of Showalter Middle School and is proposed to have access to S 142 "d Street. Improvements are proposed for Foster High School and Showalter Middle School, but the improvements are not proposed to increase the student population of either school. Foster High School currently has 878 students and Showalter Middle School has 632 students. The Tukwila Birth to K school is proposed to have up to 440 students. 2. METHODOLOGY The analysis of the typical parking for a normal day has been performed based on actual parking observations at the existing Foster High School and Showalter Middle School performed by the independent count firm National Data & Surveying Services (NDS) in September 2016. Observations were performed after school began and before school dismissed to determine the typical school parking demand. Foster High School and the technology building currently have three lots for teachers, students and visitor parking. These lots include the north lot, the south lot and the east lot. Foster High School also has a bus area, but that has not been included in this analysis since teacher, student and visitor vehicles are not allowed in this lot during school times. Showalter Middle School has two loops. There is also the City of Tukwila Pool between Foster High School and Showalter Middle School. This area has 17 designated parking spaces, although it appears Foster High School parking does occur in this area. The demand for the pool parking spaces has therefore been included as part of the analysis, but the parking supply in the pool area has not been included. It is important to note that accessible spaces have been included in the supply and demand calculations. The event parking demand is based on the attendance for events in the Performing Arts Center and a football game using the typical vehicle - occupancy rate of 2.1 for recreational events. This methodology is similar to analysis approved for other high schools in the Puget Sound region. Gibson Traffic Consultants, Inc. February 2017 info @gibsontraffic.com 1 GTC #16 -178 211 Tukwila School Campus Parking Analysis 3. TYPICAL PARKING ANALYSIS 3.1 Existing Conditions The Foster High School and Showalter Middle School parking lots and their existing parking supply and demand are summarized in Table 1. Table 1: Existing Parking Supply and Demand Location Supplyl Demand Utilization After Start Before Dismissal Peak High School m- North Lott 102 66 67 67 66% High School South Lot 11 6 9 9 820 High School -m East Lot3 138 55 51 55 40% Middle School .. West Loop 17 17 15 17 100% Middle School, East Loop 105 81 85 85 81° °0 TOTAL 373 225 227 233 62% The total existing parking available at the Tukwila School Campus for normal school operations is 373 parking spaces. The parking data shows that there were 225 vehicles parked after school started in the morning and 227 vehicles parked before school dismissed in the afternoon. The overall peak demand, based on the highest demand in the morning and the highest demand in the afternoon, is 233 spaces. This results in a peak parking utilization of 62% and a demand rate of 0.15 for the 1,510 existing student population for Foster High School and Showalter Middle School. 3.2 Proposed Conditions The Tukwila Birth to K school is proposed to provide 80 parking spaces plus 12 additional parking spaces within the bus loop that can be utilized for events. The changes to the Foster High School are anticipated to result in 177 total parking spaces with 11 additional spaces in the bus loop that can be utilized for events. The changes to Showalter Middle School are not anticipated to change the existing parking supply. The parking supply after the Foster High School changes will be 299 parking spaces between Foster High School and Showalter Middle School. This represents a utilization of approximately 78 %. The addition of the Tukwila Birth to K school will result in approximately 378 parking spaces on the Tukwila School Campus with additional spaces being available for events. I Includes 11 accessible spaces Z Includes supply and demand of technology building 3 Includes demand along pool area, but does not include supply. Gibson Traffic Consultants, Inc. February 2017 info @gibsontraffic.com 2 GTC #16 -178 212 Tukwila School Campus Parking Analysis 4. EVENT PARKING ANALYSIS The event parking analysis has been performed for a typical event in the Performing Arts Center and a football game. An event in the Performing Arts Center includes up to 600 attendees and a football game has up to 500 attendees. A graduation has not been considered since graduations are proposed to be moved off -site. The parking demand for each of these event types is summarized in Table 2. Table 2: Event Parking Demand Event Attendees Vehicle Parking OCCUDancy Demand Performing Arts Center 600 2.1 286 Football Game 500 2.1 238 The parking supply on the Tukwila School Campus (Foster High School with changes plus Showalter Middle School) of 310 spaces for an event will provide adequate parking for the anticipated maximum attendance in the Performing Arts Center and at a football game. The anticipated parking demand of 286 parking spaces for a Performing Arts Center event will represent a utilization of 92% of the total campus parking spaces. The additional spaces created with the Tukwila Birth to K school will increase the total supply to 402 parking spaces and would result in a parking utilization of 71 % with an event in the Performing Arts Center. 5. CONCLUSIONS The Tukwila School Campus is anticipated to have 299 parking spaces for normal operations and 310 parking spaces for an event between Foster High School and Showalter Middle School. The Tukwila Birth to K school is proposed to include 80 additional parking spaces with 12 additional spaces for an event, resulting in a total supply of 379 parking spaces for normal operations and 402 parking spaces for an event. The current parking demand at Foster High School and Showalter Middle School is below the supply with the proposed changes. The utilization rate between the two schools is 78% with the proposed parking changes to Foster High School. The highest demand for an event is 600 attendees for an event in the Performing Arts Center. This is anticipated to generate a parking demand of 286 spaces. This event parking is also below the supply with the proposed changes and would have a utilization rate of 92 %. Additional spaces created with the Tukwila Birth to K school will increase the parking supply for events and reduce the utilization to 71 %. Gibson Traffic Consultants, Inc. February 2017 info @gibsontraffic.com 3 GTC #16 -178 213 214 » N , i i » Dill SIGN REWEW NARRA 'nVE/1) SC iP110N MOM Project Overview f a1' - „T;11 The Tukwila School District Community passed a Capital Improvements Bond in February 2016. One of the projects identified in the bond I ssue is for the modernization and additions to the existing Foster High School. Foster High School is located at 4242 South 144th Street, at the corner of South 144th Street and 42nd Avenue South on approximately 25 acres in the City of Tukwila (King County Tax Parcel No. 152304 - 9108). The property is zoned Low Density Residential with the high school's stadium and sports fields /facilities having a Public Recreational Overlay (PRO). The existing high school is boarded to the West by Medium Density Residential (MDR) zoning and to North, East and South by Low Density Residential (LDR) zoning. The modernization and new additions are intended to preserve and celebrate the school's established heritage and culture. Foster High School must continue to be a vital part of the school district and the surrounding communities. As such, it serves as a primary meeting place for those who come to teach and to learn the lessons that build life -long skills, abilities, character, and contribute to the students' successful transition to adulthood. Beyond its role as a center for teaching and learning, Foster High School has a legacy as serving as a center of community life. In this context the facility and the renovations and additions are intended to allow for community use and partnerships, to be a source of community pride and to act as a natural extension of the character of the surrounding community. The design rationale is therefore clear; Create a comprehensive, state -of- the -art high school that will foremost support and enhance Foster's educational program, celebrate its unique culture and traditions, and ultimately continue to be a community landmark and asset. The project scope is to renovate portions of the existing high school, improving the educational environments, and add approximately 61,200 sf of new educational space. The additions and renovations are intended to replace existing portable classrooms that currently reside on the site as well as provide additional spaces to accommodate project- based, self- directed and collaborative learning experiences with a STEAM focus (Science, Technology, Engineering, Arts and Math) for up to approximately 1,100 students. (Note: Once the modernization and additions are completed it is intended, the existing portable classrooms will be removed from the site.) Design Philosophy and Process Through an interactive and collaborative planning process involving representatives of school district administration, Foster High School staff, community, parents and students a comprehensive Educational Specification and Architectural Program was developed. One very important outcome of this process was the formulation of nine guiding design goals for the renovations and additions to Foster High School. ATTACHMENT L TACOMA // 253,627,5599 SPOKANE // 50'U52,5080 RTLANW // 0 &535a a 0 SEND // 541,330,6506 Foster High School Modernization and Additions TUKWILA SCHOOL DISTRICT III'i;Slll� IY III'tlll'i; �lll'i; Y' AIICt RA " "i i; III': III'i;;SCRIIIIII'° " "III' "'IIOIY May 1, 2017 Foster High School will: • Be a learner- focused campus. • Be a safe environment. • Be flexible and agile. • Be the heart of the community. • Promote meaningful collaboration. • Honor the diversity and history of the community as we look to the future. • Be a model campus for stewardship and sustainability. • Have adaptable and accessible technology. • Encourage total wellness. The most influential factor affecting the building organizational design is the desire to provide a facility that is responsive and supportive of the educational program and in turn enhances the teaching and learning environment. Project Context Foster High School is located in Tukwila's Foster Residential Neighborhood, which is centrally located in the City of Tukwila and thus can be considered the hub of the community and its neighborhoods. The Foster High School facility is located with other associated Tukwila School District facilities. A group of contiguous parcels are located at this site which include Showalter Middle School, Tukwila School District Administrative Office, Foster High School's Stadium, and the future Birth to Kindergarten Facility, as well as Tukwila Municipal Pool Facility. In addition, the King County Library is nearing completion of its new Library at the corner of International Boulevard and 144thStreet. This area can truly be said to be a comprehensive educational and recreational hub for the Tukwila community. The renovations and improvements the Tukwila School District is proposing to do at Foster High School will improve the public infrastructure in the neighborhood and strengthening the sense of community and improve educational attainment of not only the Foster community /neighborhood, but the entire City of Tukwila. With these improvements, elements of the Goals 7.2 and 7.3 for enhancing Neighborhood Quality set forth in the City's Comprehensive Plan are being achieved and improved upon. Additional site improvements that are being proposed include the development of a new baseball field and a new softball field, and (4) new tennis courts. With these site improvements, the recreational and sports facilities of Tukwila School District will be enhanced and the Tukwila community will benefit from these improvements satisfying Elements of City of Tukwila's Comprehensive Plan, particularly elements of Policy 6.1.1 — "Create a system of close -to home recreation opportunities..." and 6.4.4 - "Increase capacity of existing parks and recreation facilities to maximize use and expand public access." Page 12 216 FOSTER HIGH SCHOOL — DESCRIPTION OF PROJECT CONSISTENCY May 1, 2017 Design Review Criteria (Multi - family, Hotel, and Motel Design Review Criteria TMC 18.60.050 C) C. Multi - Family, Hotel and Motel Design Review Criteria. In reviewing any application for multi- family, hotel, motel, or non - residential development in a Low Density Residential zone, the following criteria shall be used by the BAR in its decision making, as well as the Multi - Family Design Manual or Townhouse Design Manual. Detached zero -lot -line type of developments shall be subject to the Townhouse Design Manual. 1. SITE PLANNING CRITERIA. b. Natural features, which contribute to desirable neighborhood character, shall be preserved to the maximum extent possible. Natural features include, but are not limited to, existing significant trees and stands of trees, wetlands, streams, and significant topographic features. FUMIFUNIIIII c. The site plan shall use landscaping and building shapes to form an aesthetically pleasing and pedestrian scale streetscape. This shall include, but not be limited to facilitating pedestrian travel along the street, using architecture and landscaping to provide a desirable transition from streetscape to the building, and providing an integrated linkage from pedestrian and vehicular facilities to building entries. ,Street improvements are planned along the northerly property boundary of the project site along ,South 144th ,Street to accommodate pedestrian movement. ,Streetsca e improvements have been designed to meet City of Tukwila's Landscaping Requirements - ha ter 18.52 of the TMC and road improvements requirements dictated by the City of Tukwila. Page 13 217 FOSTER HIGH SCHOOL — DESCRIPTION OF PROJECT CONSISTENCY May 1, 2017 Design Review Criteria (Multi - family, Hotel, and Motel Design Review Criteria TMC 18.60.050 Q d. Pedestrian and vehicular entries shall provide a high - quality visual focus using building siting, shapes and landscaping. Such a feature establishes a physical transition between the project and public areas, and establishes the initial sense of high quality development. quality visual focus to the existing building and the proposed additions and on-si improvements. i e. Vehicular circulation design shall minimize driveway intersections with the street. thus will not increase intersections with streets. f. Site perimeter design (i.e., landscaping, structures, and horizontal width) shall be coordinated with the site development to ensure a harmonious transition between adjacent projects. RESPONSE: line (South 142nd Street) and at the corner of S. 144nd Street and 42nd Avenue South. Si Improvements at these locations will include landscaping, meeting the City of Tukwi, Landscaping Ordinance, and paved pedestrian walkways and courtyard improvements. 11 g. Varying degrees of privacy for the individual residents shall be provided, increasing from the public right -of -way, to common areas, to individual residences. This can be accomplished through the use of symbolic and actual physical barriers to define the degrees of privacy appropriate to specific site area functions. RESPONSE: dedicated access easements, and other public facilities (Educational and Recreational facilities such as an Aquatic Center and School District Stadium Complex). Appropriate h. Parking and service areas shall be located, designed and screened to interrupt and reduce the visual impact of large paved areas. New parking area located at the northwesterly corner of the site has been designed to be meet Landscaping Requirements outlined in Chapter 18.52 of the TMC. Page 14 218 FOSTER HIGH SCHOOL — DESCRIPTION OF PROJECT CONSISTENCY May 1, 2017 Design Review Criteria (Multi - family, Hotel, and Motel Design Review Criteria TMC 18.60.050 C) The height, bulk, footprint and scale of each building shall be in harmony with its site and adjacent long- term structures. 2. BUILDING DESIGN CRITERIA. a. Architectural style is not restricted; evaluation of a project shall be based on the quality of its design and its ability to harmonize building texture, shape, lines and mass with the surrounding neighborhood. RESPONSE: This project entails the construction of additions to the existing Foster Hi School. There exists an architectural style that was established when the original scho was designed and constructed back in the early 1990's. I The building elevations that front along ,South 144th ,Street and 42nd Avenue ,South establish a predominate architectural style and is the publicface of the existing high school. The portions of the existing buildings that are back drops to these predominate facades are more monolithic and are devoid of the building materials/ steps related to these front facades. Page 15 219 FOSTER HIGH SCHOOL — DESCRIPTION OF PROJECT CONSISTENCY May 1, 2017 Design Review Criteria (Multi - family, Hotel, and Motel Design Review Criteria TMC 18.60.050 C) c. Building components, such as windows, doors, eaves, parapets, stairs and decks shall be integrated into the overall building design. Particular emphasis shall be given to harmonious proportions of these components with those of adjacent developments. Building components and ancillary parts shall be consistent with the anticipated life of the structure. RESPONSE: The new building additions have been designed to be harmonious with t existing building components and their proportions. New windows at the clas AIM d. The overall color scheme shall work to reduce building prominence and shall blend in with the natural environment. e. Monotony of design in single or multiple building projects shall be avoided. Variety of detail, form, and siting shall be used to provide visual interest. Otherwise monotonous flat walls and uniform vertical planes of individual buildings shall be broken up with building modulation, stairs, decks, railings, and focal entries. Multiple building developments shall use siting and additional architectural variety to avoid inappropriate repetition of building designs and appearance to surrounding properties. Page 16 220 FOSTER HIGH SCHOOL — DESCRIPTION OF PROJECT CONSISTENCY May 1, 2017 Design Review Criteria (Multi - family, Hotel, and Motel Design Review Criteria TMC 18.60.050 C) 3. LANDSCAPE AND SITE TREATMENT CRITERIA. a. Existing natural topographic patterns and significant vegetation shall be reflected in project design when they contribute to the natural beauty of the area or are important to defining neighborhood identity or a sense of place. RESPONSE: The project site has been fully developed over the years and no significa W �'A has been installed. Existing topography patterns will remain the same for the most pa with minor parading for the new softballfield, baseballfield and tennis courts. i b. Landscape treatment shall enhance existing natural and architectural features, help separate public from private spaces, strengthen vistas and important views, provide shade to moderate the effects of large paved areas, and break up visual mass. c. Walkways, parking spaces, terraces, and other paved areas shall promote safety and provide an inviting and stable appearance. Direct pedestrian linkages to the public street, to on -site recreation areas, and to adjacent public recreation areas shall be provided. =1=1 11 d. Appropriate landscape transition to adjoining properties shall be provided. 4. MISCELLANEOUS STRUCTURES CRITERIA. a. Miscellaneous structures shall be designed as an integral part of the architectural concept and landscape. Materials shall be compatible with buildings, scale shall be appropriate, colors shall be in harmony with buildings and surroundings, and structure proportions shall be to scale. Page 17 221 FOSTER HIGH SCHOOL — DESCRIPTION OF PROJECT CONSISTENCY May 1, 2017 Design Review Criteria (Multi - family, Hotel, and Motel Design Review Criteria TMC 18.60.050 C) b. The use of walls, fencing, planting, berms, or combinations of these shall accomplish screening of service yards and other places that tend to be unsightly. Screening shall be effective in winter and summer. RESPONSE: No new Service Yards/Areas are being proposed. Existing Service Yards/Are are currently screened and will continue to be maintained. I c. Mechanical equipment or other utility hardware on roof, ground or buildings shall be screened from view. Screening shall be designed as an integral part of the architecture (i.e., raised parapets and fully enclosed under roof) and landscaping. d. Exterior lighting standards and fixtures shall be of a design and size consistent with safety, building architecture and adjacent area. Lighting shall be shielded and restrained in design with no off -site glare spill -over. Excessive brightness and brilliant colors shall not be used unless clearly demonstrated to be integral to building architecture. RESPONSE: A "Site Lighting Photometric Analysis " has been developed and is included as part of the Conditional Use Permit Application for this project. The design of the exterior lighting has been developed to meet the intent of this criteria. New site lighting shall be designed to have the appropriate shielding and cutoff. Page 18 222 Tukwila Birth to Kindergarten Center Statement of Compatibility with TMC 18.60.05013: Design Criteria for Multi - Family, Hotel and Motel Developments 5/01/17 1. Site Planning The project is located in an LDR zone but the adjacent properties include several large scale buildings including a middle school, high school, a church with 2 story classroom buildings, a public pool complex, and the Tukwila School District administrative office building. Five single family houses to the North are largely hidden from view from the project site by an existing line of trees on property line. Additional trees and shrubs will be planted along the West and North property lines to create the required landscape buffer and to further screen the project from the adjacent properties. The new Birth to Kindergarten Center, like the adjacent Showalter Middle School and Foster High School will be two stories tall and will have a design character appropriate to an educational facility for young children. b. Natural features which contribute to desirable neighborhood character shall be preserved to the maximum extent possible. Natural features include, but are not limited to, existing significant trees and stands of trees, wetlands, streams, and significant topographic features. The new building will be constructed on a portion of the school district property site that consists of a fairly level, open, grassy area that currently is developed as a baseball field and a softball field. The eastern portion of this site is part of a heavily wooded 'green belt' and slopes steeply down towards Macadam Road. This wooded area will be preserved and will form an attractive green backdrop for the building. Additionally an existing buffer of mature trees along the north property line will be left in place to screen views to and from the single family residences to the north. c. The site Arlan shall use landscaping and building shares to form an aesthetically pleasing and pedestrian scale streetscape. This shall incline, but not be limited to facilitating pedestrian travel along the street, using architecture and landscaping to provide a desirable transition from streetscape to the building, and providing an integrated linkage from pedestrian and vehicular facilities to building entries. The project is not located on a city street. Pedestrian and vehicular access to the site will be provided from the west, along an access easement between the church property and the middle school. The existing asphalt driveway adjacent to the church will be improved with new asphalt 223 overlay, sidewalk and pedestrian scale lighting.. It is accessed via a drive shared by the school and adjacent church. There is no existing streetscape for the project to respond to. Despite the fact that there is no real existing streetscape for the project to respond to, paved sidewalks, curb ramps and striped crosswalks and landscaping are provided on site to create a pedestrian pathway from the entry driveway to the building entry plaza. The building massing is organized such that a single story block is located along the front, creating a welcoming pedestrian scale to the facility for arriving students and visitors. d. Pedestrian and vehicular entries shall provide a high quality visual focus using building siting, shares, and landscaping. Such a feature establishes a physical transition between the project and public areas, and establishes the initial sense of high quality development. The building position and orientation were carefully considered to create a pleasing prospect for arriving cars and pedestrians, with a clearly visible entry both from the site drive and from the parking and drop -off areas. e. Vehicular circulation design shall minimize driveway intersections with the street. A single private driveway south of St. Thomas Church is the only connection between the school and a public street , 44th Avenue South. f Site perimeter design (i.e. landscaping, structures, and horizontal width) shall be coordinated with site development to ensure a harmonious transition between adjacent projects. The building itself is well set back from neighboring property lines. A new buffer of trees and shrubs will be planted along the West property line and the existing mature trees at the north line will be supplemented as necessary to create the required landscape buffer and to screen the project from the adjacent properties. While there is a parcel property line between this site and the Showalter Middle School site, both properties are part of a larger site owned and developed as an educational campus by the School District. More limited planting between these sites is desired to allow better visibility and security per CPTED principals between these two school district buildings. g. Varying degrees of privacy for the individual residents shall be provided; increasing from the public right -of -way, to common areas, to individual residences. This can be accomplished through the use of symbolic and actual physical barriers to define the degrees of privacy appropriate to specific site area functions. This criteria does not really apply to a school. However, the building is designed with the public and common areas generally facing the parking with the classrooms and play areas located behind these public spaces. The exception is the infant care wing which generally is better served by direct but secure access for parents from the parking and drop off areas. h. Parking and service areas shall be located, designed, and screened to interrupt and reduce the visual impact of large braved areas. 224 Parking areas are provided with code required landscaping to break up the expanses of paving. The service yard is screened by a wall that extends the visual line of the building and by opaque fencing. i. The height, bulk, footprint, and scale of each building shall be in harmony with its site and adjacent long -term structures. Like the adjacent Church and Church School, Showalter Middle School, and Foster High School; the new Birth to Kindergarten Center will be two stories tall and will have a design character appropriate to an educational facility for young children. 2. Building Design a. ,architectural style is not restricted, evaluation of a project shall be based on the quality of its design and its ability to harmonize building texture, share, limes and mass with the surrounding neighborhood. The neighboring church buildings, Showalter Middle School, the TSD Administration building and Foster High School are of different architectural styles, but in terms of shape, line, and mass the new school fits well within its context. The materials of the new building generally conform in texture and style to the surrounding buildings with the addition of some wood siding that softens the overall appearance of the school as appropriate for the younger age group it serves. The residential streets to the North are populated with modest homes of varying ages in a wide range of styles and materials. The surrounding school campus and its buildings are consistent with, and envisioned in the Comprehensive Plan. The development of the new classroom building is consistent with the Comprehensive Plan. c. Building components, such as windows, doors, eaves, parapets, stairs and decks shall be integrated into the overall building design. Particular emphasis shall be given to harmonious proportions of these components with those of adjacent developments. Building components and ancillary parts shall be consistent with the anticipated life of the structure. Design Features include: • Simple building forms, materials, and massing allow the two classroom wings to be expressed at the front of the building while maintaining a cohesive relationship between the taller classroom wings and the single story administration offices. • Slight extensions of the roof and wall planes serve to'frame' both ends of the classroom wings and the front of the administration wing pulling the overall composition together. 225 • Varied window shapes and sizes bring a playful and age appropriate character to the building. • A generous roof overhang creates a sheltered area at the main entry. • The front wall of the administration wing extends beyond the end of the building to the west to screen the service yard. • Exterior staircases are treated as sculptural forms to enliven the courtyard space. • Rooftop mechanical equipment is hidden behind a decorative screen. • Exterior materials were selected for durability and ease of maintenance. d. The overall color scheme shall work to reduce building prominence and shall blend in with the natural environment. A key goal of the building design is to create a warm and welcoming educational experience for the young students and their families. Cement fiber board panels in neutral tones provide a calm backdrop, and contrast, to expanses of warm wood siding and vibrant pops of accent colors at entry areas, window surrounds, and courtyard stairways. The U- shaped floor plan was selected by the school district from a number of potential schemes. Admired features of this scheme included the following: • Compact floor plan • Views to woods / natural areas from all classrooms • Variety of outdoor play and learning environments: protected courtyard + expansive play areas next to the woods. • Clear sight lines within the various play area zones = no hidden areas. • Views through the building from the entry to the courtyard • Ability to open up the Multipurpose and Community Rooms to the Learning Stair and lobby areas to create a larger zone for family events • Building entry is clearly visible to pedestrians and vehicles entering the site. Landscape and Site Treatment a. Existing natural topographic patterns and significant vegetation shall be reflected in project design when they contribute to the natural beauty of the area or are important to defining neighborhood identity or a sense of glace. The existing green belt and sloping hillside on the East portion of the site is being preserved and celebrated. The building orientation strives to take advantage of views of towards the trees of this natural area. 226 A new pedestrian sidewalk is being constructed along the access drive south of St. Thomas church that will link the site with the public street. d. Appropriate landscape transition to adjoining properties shall be provided. See response to item If above. Miscellaneous Structures a. Miscellaneous structures shall be designed as an integral part of the architectural concept and landscape. Materials shall be compatible with buildings, scale shall be appropriate, colors shall be in harmony with buildings and surroundings, and structure proportions shall be to scale. The two detached Covered Play Sheds will be harmonious in design with the facility and with the surrounding play area development. b. Screening of service yards, and other places which tend to be unsightly, shall be accomplished by the use of walls, fencing, planting, berms, or combinations of these. Screening shall be effective in winter and summer. The Service yard is screened as described in Item Ih above. Mechanical equipment or other utility hardware on roof, ground or buildings shall be screened from view. Screening shall be designed as an integral part of the architecture (i.e., raised parapets and fully enclosed under roof) and landscaping. Roof top Mechanical equipment will be hidden by a continuous decorative screen element that is an integral part of the design of the front of the building. d. Exterior lighting standards and fixtures shall be of a design and size consistent with safety, building architecture and adjacent area. Lighting shall be shielded, and restrained in design with no off-site glare spill over. Excessive brightness and brilliant colors shall not be used unless clearly demonstrated to be integral to building architecture. Site lighting fixtures will be shielded and will result in no light spill over from the site. No colored lighting is proposed. 227 228 Tukwila Birth to Kindergarten Center Typical Window Trim Detail m Z N NJ QD 5/24/17 0 0 0 Commercial Vinyl Nail- Flange Window Assembly Manufacturer: Milgard Frame Color: Fog Cement Fiber Board (CFB) Paneling Manufacturer: Viroc Color: Charcoal Gray Panel Size: 2ft wide (nominal) x 8ft tall Installation: Open joint rainscreen Joint size: 3/8" Prefinished Sheet Metal Box Trim 6" Projection from face of siding Colors: SW 6892 Carnival (shown) BM 2081 -30 Vibrant Blush SW 6766 Mariner runt AR CHIT E CTU RE N 1NDINHOV11V Exhibit N: Area to be kept free of stopped cars at all times. Heavy Duty Asphalt Pavement Private Cul -De -Sac Concrei gh = Duty Aspt Pavement Heavy Duty Asphalt N Pavement Concrete Sidewalk 232