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HomeMy WebLinkAboutPermit 91-07-DR - GOODNOW ROBERTA - CELLULAR ONE ANTENNA FACILITY DESIGN REVIEW91-07-DR 15426 35TH AVENUE SOUTH 91-05-CUP EPIC-33-91 CELLULAR ONE ANTENNA DESIGN REVIEW August 23, 1991 Sincere DESIGN REVIEW Denni She rin Associate Planner CITY OF TUKWILA 6200 SOUTHCENTER BOULEVARD, TUKWILA, WASHINGTON 98188 Cellular One Communications 617 Eastlake Avenue East . P.O. Box 9159 Seattle, WA 98109 NOTICE OF DECISION PHONE 11 (206) 433.1800 Gary L. VintDuscn, Mayor RE: Notice of Decision by the Planning Commission /Board of Architectural Review File Number: 91 -5- CUP /91 -7 -DR This is to confirm that the Planning 'Commission /Board of Architectural Review (BAR) approved your project's design as presented on August 22, 1991. (The conditions are listed on Attachment A.) The Planning Commission /BAR also adopted the findings and conclusions contained in the Staff Report dated August 15, 1991. Any changes to the specific design approved by the Planning Commission /BAR will require further Planning Commission /BAR approval. Minor, incidental changes may be administratively approved by the Director of Community Development. The decision of the Planning Commission /BAR is not final until the appeal period has elasped, which is ten calendar days after the above date of the decision. Appeals must be filed in writing to the City Clerk by 5:00 p.m. on the final day of the appeal period. Where the final day of an appeal period falls on a weekend or holiday the appeal period will be extended to 5:00 p.m. on the next work day. If you should have any questions regarding this project, please feel free to write or call. ATTACHMENT A. , . CITY OF T UIi WILA 6200 SOC'THCENTER BOULEVARD, TUKWILA, WASHINGTON 98188 HEARING DATE: FILE NUMBER: APPLICANT: REQUEST: LOCATION: ACREAGE: COMPREHENSIVE PLAN DESIGNATION: ZONING DISTRICT: SEPA DETERMINATION: ATTACHMENTS: STAFF REPORT TO TiiE PLANNING COMMISSION Prepared August 15, 1991 August 22, 1991 91 -5 -CUP/ 91 -07 -DR Cellular One Communications PHONE 6 006) 4334800 Gary L. l anDuscn, Mayor Conditional Use Permit and Design Review approval to erect a 60 -foot high cellular phone antennae and construction of a 192- square -foot equipment building. 15426 35th Avenue South (Southeast corner of the Ajax parking lot south of Hwy 99) Approximately 1.2 Commercial C -2, Regional Retail Commercial A determination of Nonsignificance was issued on August 5, 1991. A. Site Plan B. North and East Elevations C. Design Review Application Checklist D. Photo Overlay VICINITY /SITE INFORMATION BACKGROUND DECISION CRITERIA CONDITIONAL USE 91 -5- CUP /91 -7/DR: Cellular One Communications Staff Report to the Planning Commission Page 2 FINDINGS Project Description: To erect a 60- foot -high cellular monopole with panel antennas and a 8' X 24' equipment shelter which would house radio electronics equipment used in cellular communications. Existing and Surrounding Land Use: The site is currently used as an Ajax parking facility. Surrounding land uses include South 154th Street to the north, Hwy 518 to the south, multi - family residential (West Colonial Apartments) to the east and Pacific Highway to the west. Terrain: That portion of the site to be leased for the cellular phone facility is relatively flat with a 2% to 3% grade. A steep embankment separates the site from Hwy518. The applicant proposes to erect a 60 -foot high cellular phone monopole with panel antennas and a 8' X 24' (192 sq ft.) equipment shelter which would house radio electronics equipment used in cellular communications. A 1000 - square -foot vacant area of the Ajax site would be leased (southeast corner) for the cellular phone facility. A color - coated chain -link fence would enclose the pole and equipment building. The fence color would blend with the building. The monopole would be painted sky -grey, however, the applicant has not provided a color sample to the Planning Division at this time. The proposed cellular facility would back up against a double row of existing 6 -foot high wood fencing (east side) which currently separates the residential uses from the Ajax site. Design Review in addition to a Conditional Use permit is required when a residential zone district is within 300 feet of specific commercially -zoned sites including the C -2 zone. Conditional Use criteria are shown below in bold followed by the applicant's and staff's response. Staff Report to the 91 -5- CUP /91 -7/DR: Cellular One Communications Planning Commission Page 3 18.64.050: General Review Criteria for 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; Applicant's Response 'The antenna facility would be located on the southeast corner of the Ajax parking lot #2. Landscaping consisting of evergreen trees and shrubs are located along the perimeter of the lot. Landscaping would be preserved which would help to screen the facility from the adjacent residential units. There are a number of wood poles in the vicinity as well as a communicaitons tower at the State Patrol Office at the corner of Highway 518 and Highway 99. The federal government through the Department of Energy, FCC and EPA regulate cellular power densities and monitor health concerns. Radio frequency emissions from the Riverton Heights antenna facility would be in the 869 -880 megahertz range (the range at which UHF TV was previously assigned). The facility is classified as low power and the antennas would be facing toward Highway 518 and away from the residential units to the east. As such, the radio frequency power density levels near the antenna pole (5' above ground below the pole) will be very low- -far lower than the federally- established maximum permissible human exposure standard. The low power and high frequency eliminate the potential for interference with electronic devices such as VCRs, pacemakers, radio and TVs." Staff's Response The power levels for the proposed facility (1.325 microwatts per square centimeter at the pole base) are far lower than the recommended standards (2800 microwatts per square centimeter). No interference with VCR's, pacemakers, radio and TVs would result with the proposed facility. (B) The proposed use shall meet or exceed the performance standards that are required in the district it will occupy; Applicant's Response "The facility would meet the setback requirements of the zone in which it is located. Existing landscaping would provide screening. It would not be feasible to landscape the portion of the facility facing the parking lot (the north and west) as it would interfere with parking and driver visibility in the immediate vicinity. A site - obscuring Staffs Response Applicant's Response Staff's Response Staff Report to the Planning Commission Page 4 91 -5- CUP /91 -7/DR: Cellular One Communications fence would be provided on the parking -lot -side of the facility to accomplish the same objective as landscaping on site. One parking stall would be removed to accommodate the facility and will be replaced on the opposite side of the facility." The monopole and equipment building would comply with the C -2 setback requirements. Existing landscaping and fencing would fully screen the equipment building from the residential uses. An existing evergreen tree within the site area would partially screen the pole from the adjacent residences. For this reason, it is critical to preserve the tree. Screening the facility from the parking lot and Hwy 518 is less critical. (See recommended conditions below.) (C) The proposed development shall be compatible generally with the surrounding land uses in terms of traffic and pedestrian circulation building and site design; "The C -2 zone provides for "diversified commercial /retail acgtivities which serve a broader, regional clientele ". Uses which surround the site include gas stations, public storage units, office and convenience uses and multi - family housing. The site is at a higher elevation than Highway 518 below which would minimize its visual impact to some travelers. The perimeter of the parking lot is landscaped with trees and shrubs which will help screen it from the apartment buildings to the east. A wood pole will be used at this location to minimize its visibility. The 60 -foot pole wiould appear similar to existing utility poles in the area. A slatted site - obscuring fence will be placed on the parking lot side of the facility (the north and west portions of the site) to minimize the visual impact of the shelter. A photo of the site from the second floor of the nearest apartment building is enclosed; (to be provided at the hearing) it appears the pole may be visible to residents, but the trees and shrubs on the site will help to screen it." Minimal traffic would be generated by the facility except for two trips per month for maintenance. Access to the facility would be through the Ajax lot and would not interfere with pedestrian or vehicular circulation. Although wood slats for screening have been proposed by the applicant on the north and west sides, slats become worn over time and screening is only critical on the residential side of the facility where solid fencing already exists. 91 -5- CUP /91 -7/DR: Cellular One Communications Staff Report to the Planning Commission Page 5 Twenty -five to thirty feet high Spruce trees exist along the south property line of the Ajax lot. A cluster of taller Spruce trees are located near the pole site. (See Photo enclosed). The vertical nature of the trees in addition to the pole color help to visually reduce negative impacts of the monopole. (D) The proposed use shall be in keeping with the goals and policies of the Comprehensive Land Use Policy Plan; Applicant's Response "There are no specific policies in the Comprehensive Plan which address cellular radio communication utilities. The Transportation and Utilities goal ( #3) of the plan does state that a goal of the plan is to 'Assure a public service level consistent with the needs and desires of the community.'" Staffs Response The Planning Commission has reviewed and approved two other cellular phone facilities within Tukwila and is presently reviewing three additional facilities. In order to optimize the level of service for cellular phones, siting is dependent upon the following site conditions: 1. topographic constraints such as hillsides 2. heights of surrounding structures 3. ability to maintain a direct line of sight with other cellular phone facilities. Allowing fewer cellular phone facilities on sites with the most favorable conditions helps to minimize the need for additional facilities throughout the City, and thereby reduces a potentially negative cumulative visual effect. This facility in turn, would be able to offer a level of service adequate to meet the increased demand as the number of businesses' and users grow. Approved cell sites and cell sites now being considered are as follows: Approved Cell Sites 12228 51st Place South NE corner of S 158th St. (Longacres Way) and Nelson Place. Height 100 feet 115 feet Staff Report to the 91 -5- CUP /91 -7/DR: Cellular One Communications Planning Commission Page 6 Proposed Cell Sites Height 15426 35th Ave S. 60 feet 566B Industry Drive 78 feet 13130 44Th Ave S 120 feet (E) All measures have been taken to minimize the possible adverse impacts which the proposed use may have on the areas in which it is located; Applicant's Response Staffs Response As noted above, Design Review is required because the subject property is zoned C -2 and is within 300 feet of a residentially -zoned property. Most of the Design Review criteria has been addressed in responses to the Conditional Use Decision Criteria above. The Design Review Application checklist is included as attachment "C" to this report. (1) "The facility would be on a very small piece of leased property (986 square feet) to minimize its impact on the owner's use of his property. The 60 -foot tall pole would be the minimum height necessary to function effectively and will be constructed of treated wood to blend with the existing poles in the area. Existing evergreen trees and shrubbery will provide year -round screening of the site. As additional screening, the cyclone fence on the parking lot side (the north and west sides) will have site - obscuring slats to minimize the visual impact of the shelter on drivers in the parking lot. The small shelter has a brown washed aggregate exterior." As discussed earlier, existing fencing and landscaping would help to screen the monopole from the residential uses. Because very few wood utility poles are in the vicinity, a pole color which would blend better with the sky would be more appropriate. Design Review Relationship of Structure to Site. A. The site should be planned to accomplish a desirable transition with the streetscape and to provide for adequate landscaping and pedestrian movement. B. Parking and service areas should be located, designed, and screened to moderate the visual impact of large paved areas. 91 -5- CUP /91 -7/DR: Cellular One Communications Staff Report to the Planning Commission Page 7 C. The height and scale of each building should be considered in relation to its site. See response to Conditional Use Permit Decision Criteria: A, B and C above. (2) Relationship of Structure and Site to Adjoining Area. A. Harmony in texture, lines, and masses in encouraged. B. Appropriate landscape transition to adjoining properties should be provided. C. Public buildings and structures should be consistent with the established neighborhood character. D. Compatibility of vehicular pedestrian circulation patterns and loading facilities in terms of safety, efficiency and convenience should be encouraged. E. Compatibility of on -site vehicular circulation with street circulation should be encouraged Colors were selected for the pole and building to blend with the environment. See responses to Conditional Use Permit Decision Criteria: B, C and E above. (3) Landscape and Site Treatment. A. Where existing topographic patterns contribute to beauty and utility of a development, they should be recognized and 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 use of walls, fencing planting or combinations of these. Screening should be effective in winter and summer. G. In areas where general planting will not prosper, other materials such as fences, walls, and pavings 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. See responses to Conditional Use Permit Criteria:B, C, and E. (4) Building Design A. Architectural style is not restricted, evaluation of a project should be based on quality of its design and relationship to surroundings. B. Buildings should be to appropriate scale and be 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 components and ancillary parts shall be . consistent with anticipated life of the structure. D. Colors should be harmonious, with bright or brilliant colors used ,only for accent. E. Mechanical equipnzent or toher utility hardware on roof ground or buildings should be screened from view. Staff Report to the Planning Commission Page 8 91 -5- CUP /91 -7/DR: Cellular One Communications F. Exterior lighting should be part of the architectural concept. Fixtures, standards and all exposed accessories should be harmonious with building design. G. Monotony of design in single or multiple buildings projects should be avoided. Variety of detail, form, and siting should be used to provide visual interest. The equipment building would be an earth -tone aggregate wash. Because of the type of use and location of the facility, architectural compatibility had not be a design goal of the project, rather screening the facility and lessening any negative visual impact had been emphasized. CONCLUSIONS 1. Due to the type and location of the proposed use, the cellular phone antenna and equipment building would not be materially detrimental to the public welfare or injurious to the property or improvements in the vicinity. 2. Because of the location of the structure relative to the site, surrounding buildings, surrounding land uses, proposed colors and landscaping, the cellular antenna would not create an adverse visual impact to the area. 3. The sating of the structures would not impede vehicular movement on the site. 4. Since there are no applicable policies that deal with the specific request, the request for a conditional use permit and Design Review approval would not adversely affect the implementation of the Comprehensive Land Use Policy Plan. The applicant has demonstrated that the criteria the Conditional Use Permit and Design Review has been adequately addressed with this project. 5. The applicant has addressed all measures in minimizing any adverse impacts for this area. The proposed colors of the monopole and equipment building, the on and off - site landscaping, site - obscuring fencing and grade separations between the residential uses and Hwy 518 are all features which help to reduce the visual impact of the proposed use to the adjacent residential development. RECOMMENDATIONS The Planning Division recommends approval with the following conditions: 1. The existing tree on site shall be preserved. A landscape architect or arborist shall prepare a tree preservation plan with the approval of the Community Development Director. If the tree does not survive within two years after development is completed, a tree of like kind shall be installed. 2. As noted in the report, a color sample for the monopole has not yet been provided. Staff Report to the Planning Commission 91 -5- CUP /91 -7/DR: Cellular One Communications Page 9 The applicant shall submit to the Planning Division a color sample for the monopole prior to issuance of building permits. i� 5 ('.' :7 51 I I: 1 5 IC•I. 111.111E11 Ti s-2) RNCRTON II(IGHTS CELL SITE BION SEL rl `\ S2 1» 51 `` `1/•lam Sl '4•:., 57 t l KC )Gamer, Chin & Lloyd, Inc. .19171ljrd,,:h/enUe • Saallle, Y,oihinpinn 981.01 C.E5'.t[. + lrnli . 31.5,3 S I5700 ST. YI I I_ S 134TH ST. NW 1/4. SW I/4, SCC. 22, TNN. 2314. RGC. 4C, W.t1. KING COUNTY, WASHINGTON . I II; 't 14 C J C3' lig •1 I1.1W•C•IY 1-_ . or•n•narc! S 1561)[ ST. 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I' 0041(4 5E9 POST. •/- 0E51 Cr Sat ILLY - 315.05' SITE - P0 tat r e.r.rrukr(tt suerea, •s anI 3:•%csr SOUt.Casi raroctRrr CO*.E. (7 0..t1I/1 rESEt YOST). (LEV • 305 05* INTERSTATE MOBILEPHONE OMPANY a30 VC21.C.1 51.•:S • C•SW,Cr 0, e2 Mt O. T.! DST SCr. A.0 lb Mr 0, t.t Seut•• Vat Or Put toStoer. PEKE TO mac. O.( Pr. rcw:c. r Pa ((KC POST • Slay. LEGrtgl 0 SE57 — RIVERTON HEIGHTS CELL SITE SITE PLAN AND TOWER ELEVATION •,• S. MCC (.. 00001 job nse•bte 3203-01 sheet monbee 3 01 3 CITY OF TUKWILA . ' 19 DEPARTMENT OF COMMUNITY DEVELOPMENT 15426 - 35th Avenue South 3. APPLICANT:* 1 (This information may be found on your tax statement) BOARD OF AF ITECTURAL REVIEW -'- DESIU, REVIEW AFFIDAVIT OF OWNERSHIP Phone: John Lee: 439 - 9505/243 -8011 APPLICATION 6300 Southcenter Boulevard, Tukwila, WA •98188 Telephone: (206) 431 -3680 1. BRIEFLY DESCRIBE YOUR PROPOSAL: Construct antenna facility at Ajax parking lot (15426 - 35th Ave S). Project will consist of the installation of a 60' wood pole with antPnn2t ucPd in cellular rnmmiiniratinnc mounted nn thin tnp and the instllatinn of a 8' X 24' eoutpment shelter 2. PROJECT LOCATION: ( street address or, if vacant, indicate lot(s), bloc:, and sub- division; or tax lot number, access street, and nearest intersection) Quarter: SW Section: 22 Township: 23N age: 4E Name: Roberta Goodnow, Site Development, Cellular One Communicati Address: 617 Eastlake Avenue E. Seattle, WA 98109 Pion - 389-5269 � �i /G�L'9 Signature: Date: 6/20/91 •' * The applicant is th! person whom the staff will contact regarding the application, and to whom all notices and reports shall be sent, unless otherwise stipulated by applicant. 4. PROPERTY Name: Angel Lee, Inc. (John Lee) OWNER P. 0. Box 68925, Seattle, WA 98168 Address: I /WE,[signature(s)]__ swear that I /we are the olvne)(s) or contract purchaser(s) of the property involved in this application and that the foregoing statements and answers contained in this application are true and correct to the "// .best of my /our knowledge and belief. Date: ATTACHMENT C 1 of9 bU:at;U Ur AhL r1Ft tl: I UrC tiEVItsiv DESIGN REVIEW APPLIC 'ION Page 2 The following criteria will be used by the BAR in its decision - making on your proposed project. Please carefully review the criteria, respond to each criterion (if appropriate), and describe how your plans and elevations meet the criteria. If the space provided for response is insufficient, attach additional response to this form. 1. RELATIONSHIP OF STRUCTURE TO SITE A. The site should be planned to accomplish a desirable transition with the streetscape and to provide for adequate landscaping, and pedestrian movement. 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 it site. RESPONSE: 2. RELATIONSHIP OF STRUCTURE AND SITE TO ADJOINING AREA A. Harmony in texture, lines, and :passes is encouraged. B. Appropriate landscape transition to adjoining properties should be provided. C. Public buildings and structures should be consistent with the established neighborhood character. n I�-- D. Compatibility of vehicular pedestrian circulation patterns and loading facilities in terms of safety, efficiency and convenience should be encouraged. E. Compatibility of on -site vehicular circulation with street circulation should be encouraged. RESPONSE: exe Gtda. .I e L • )fee LZ /. ( c, CRITERIA ATTACHMENT C 2ot9 / BOARD OF ARCHITECT` QL REVIEW DESIGN REVIEW APPLk PION Page 3 3. LANDSCAPE AND SITE TREATMENT A. Where existing topographic patterns contribute to beauty and utility of a development, they should be recognized and 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 encour- aged. F. Screening of service yards, and other places which tend to be unsightly, should be accom- plished by use of walls, fencing, planting or combinations of these. Screening should be effective in winter and summer. G. In areas where general planting will not prosper, other materials such as fences, walls, and pavings of wood, brick, stone, or gravel may be used. H. Exterior lighting, when used, should enhance the building design and the adjoining land- scape. 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. RESPONSE: 4. BUILDING DESIGN A. Architectural style is not restricted, evaluation of a project should be based on quality of its design and relationship to surroundings. B. Buildings should be to appropriate scale and be in harmony with permanent neighboring de- velopments. ATTACHMENT C 3of9 BOARD OF ARCHITECTUA„ REVIEW DESIGN REVIEW APPLIC .'ION C. Building components - such as windows, doors, eaves, and parapets - should have good pro- portions and relationship to one another. Building components and ancillary parts shall be consistent with anticipated life of the 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 buildings should be screened from view. F. Exterior lighting should be part of the architectural concept. Fixtures, standards and all ex- posed accessories should be harmonious with building design. G. Monotony of design in single or multiple buildings projects should be avoided. Variety of detail, form, and siting should be used to provide visual interest. L. . 12IG(,�' RESPONSE: 5. MISCELLANEOUS STRUCTURES AND STREET FURNITURE A. Miscellaneous structures and street furniture should be designed to be part of the architec- tural concept of design and landscape. Materials should be compatible with buildings, scale should be appropriate, colors should be in harmony with buildings and surroundings, and proportions should be to scale. B. Lighting in connection with miscellaneous structures and street furniture should meet the guidelines applicable to site,' landscape and buildings. RESPONSE: J Page 4 ATTACHMENT C 4of9 4 1. RELATIONSHIP OF STRUCTURE TO SITE i� ti 0 r, 100 4 C.; i ::;• .i..f::':'i.;iLf� i . A. The site should be planned to accomplish a desirable transition with the streetscape and to provide for adequate landscaping and pedestrian movement. The proposed antenna facility would be located on 988 square feet of the southeast corner of the 186,437 square foot property known as Ajax Parking Lot 2. It would occupy less than 1% of the parking lot property. Fencing surrounds the Ajax facility and access to the property and antenna site is restricted solely to those parking vehicles or Ajax staff transporting passengers to the airport. The proposed antenna facility does not front on a street nor would there be pedestrian activity. The perimeter of the Ajax lot has been landscaped with evergreen trees (possibly Norway or Brewer's Spruce) for the past 6 - 7 years. Most of these trees have grown to 10' - 15' in height. Immediately east of the antenna facility site is the West Colonial Apartment complex. Douglas Fir trees which are 25' -30' high have been planted along the fence separating the apartment complex from the parking lot providing additional screening of the proposed facility from the apartments. The existing young Douglas Firs , which should reach 40 ' - 50' in height and 20' width upon maturity, would provide pleasant permanent screening for the facility. The top of the (60') antenna would still be visible especially from the parking lot. B. Parking and service areas should be located, designed and screened to moderate the visual impact of large paved areas. The proposed antenna facility has been planned to minimize its visual impact on surrounding and uses. It's sued in a corner of a large paved parking area as close to the freeway as possible in the minimum amount of space necessary to accommodate the facility and minimize its interference with the parking enterprise operating on the property. A slatted 6' high sight - obscuring fence would be installed on the west and north sides of the antenna facility site. Existing trees in the vicinity of the proposed project will be retained or replaced if damaged due to construction. Only one Spruce tree actually lives on the antenna facility site. C. The height and scale of each building should be considered in relation to its site. The 192 square foot building which houses electronics equipment would be 10' high and have a sand brown washed rock aggregate finish. The building would be significantly shorter than existing buildings near the site. The apartment complex to the east consists of 35- 40' high two story structures and is situated "downhill" from the parking lot. 2. RELATIONSHIP OF STRUCTURE AND SITE TO ADJOINING AREA A. Harmony in texture, lines and masses is encouraged. The sand brown shelter has been selected as it mirrors color and material (washed aggregate rocks) found in natural surroundings . A treated dark brown wood pole with anodized grey antennas were selected as those colors would blend both with surrounding trees as they mature and with the skyline on overcast days so prevalent in Western Washington. ATTACHMENT 5of9 B. Appropriate landscape transition to adjoining properties should be provided. As was described in 1A above, the Ajax Parking Lot in the vicinity of the proposed antenna facility has been landscaped with weeping Spruce trees. Immediately to the east on the fence line of the West Colonial Apartments, Douglas Fir trees have been planted. There are 6 - 7 Douglas Firs (approx. 15' tall) grouped in the southwest corner of the apartment complex near the proposed antenna facility. Both tree species provide excellent landscape screening with little maintenance in our region. Both tolerate cool weather and will survive without irrigation during summer months provided they have water during the first few years after initial planting. C. Public buildings and structures should be consistent with the established neighborhood character. The character of the neighborhood is commercial and medium density multifamily. Because the proposed facility is small, it appears to be compatible with the surrounding land uses, particularly given the existing screening provided by the trees. D. Compatibility of vehicular pedestrian circulation patterns and loading facilities in terms of safety, efficiency and convenience should be encouraged. There is no pedestrian circulation anticipated as access to the property is restricted. Cellular One's construction manager, Joe Kirsten, has discussed emergency vehicle access to the antenna facility with the Assistant Fire Chief, Nick Olives. There will be two visits to the facility per month for maintenance purposes by one vehicle. E. Compatibility of on -site vehicular circulation with street circulation should be encouraged. See answer to D directly above. 3. LANDSCAPE AND SITE TREATMENT A. Existing topographic patterns: No changes to the topography will occur at the proposed facility. The topography to the east on the West Colonial apartments property slopes downhill and away from the parking area to the west. The slope makes the first floor of the apartment complex 10' - 15' lower than the Ajax Parking Lot. The second floor of the apartments closest to the facility appear to be almost at the same elevation as the parking lot. . B. Walkways, parking, terraces and paved areas This is not applicable to this project; none of these will be provided or enhanced. C. Landscape treatment should enhance architectural features and provide shade. The trees which are grouped near the site are 10' - 15' tall. The 60' wood pole will be visible, but given the sloped nature of the apartment complex property, the pole will be less visible from that angle than if the two properties were at similar elevations. The ATTACHMENT C 6of9 shelter should not be visible from the complex and will be screened with fencing on the parking lot side. The Spruces planted on the parking lot property are known for their height, width (25' - 30'), symmetry and weeping nature. They make excellent visual screens and accent plants and tend to dominate landscaping; this characteristic makes especially attractive in the vicinity of the antenna facility where attention needs to be focused away from the pole. It's used extensively by the State Depart of Transportation along I- 5 in the vicinity of south Seattle. D, E, F, G & H There will be no additional exterior lighting unless the FAA requires the top of the pole to be illuminated given its proximity to the airport. Potential injury to trees and existing vegetation would not be a problem given the restricted nature of the property. Fencing will be provided and has been discussed previously. 4. BUILDING DESIGN See response to Questions 2 A & C above. 5. MISCELLANEOUS STRUCTURES AND STREET FURNITURE There will be no street furniture nor lighting provided unless the FAA requires it. ATTACHMENT C 7of9 The fence adjacent to • ;4 '2' • • <W... •4 • •• .•• the proposdd site. View is from the West Colon Apartments • ATTACHMENT C 9of9 SHEET NUMBER TITLE 1 TITLE. INDEX AND MAP 2 VICINITY AND LOCATION MAPS 3 SITE PLAN AND TOWER INDEX AND MAP job number 3203 -01 sheet number 1 00 3 MEM JU128 oE PLANNING DEPT. Cellular One® July 26, 1991 Ms Denni Shefrin Dept. of Community Development City of Tukwila 6200 Southcenter Blvd Tukwila, WA 98188 Dear Denni: Fri) JUL 2 G 1991 Enclosed is Cellular One's BAR Design Review application with 3 additional sets of drawings, a check for $900, 2 pages of photos of the site, an airbrush painting which superimposes the facility onto an existing photo and copies of mailing labels. In response to the questions you posed in your letter dated July 15, 1991, Joe Kirsten, Cellular One's construction manager, has discussed those issues with Asst Fire Chief Olivas. Joe has sent a letter to Olivas who will forward a copy to you. I have addressed your inquiries concerning the visual impact of the facility on the adjacent apartment complex in the Conditional Use Permit Application, SEPA Checklist and the enclosed Design Review application. Let me know if you need additional information. The landscaping at Ajax Lot #2 is not irrigated. I spoke with both the general manager, Art Dumpis, and the owner, John Lee, concerning the landscaping. The lot was landscaped 7 - 8 years ago and they have not irrigated the plantings. The Spruce trees on the property survive well in Western Washington and are used extensively by the State Dept of Transportation along 1 -5 without irrigation. Current landscape planning stresses the need to plant drought resistant species which have good survivability without irrigation. From what I've read about the evergreens on and adjacent to the site, they should survive well without irrigation. You had asked why a 60' pole is needed at this location. This facility is designed to transmit and receive radio signals from users along Highway 518 and near Highway 99. The topography between the proposed facility and Highway 99 is uphill; radio signals do not "bend." There needs to be a clear line of sight between the antenna facility and the antennas on the phones of the users along 99 and 1/4 mile west of Highway 99. To ensure that the radio signal is transmitted clearly from the antenna facility to car and portable antennas on 99, a 60' pole provides the necessary height. 617 Eastlake Avenue East, P.O. Box 9159, Seattle, WA 98109 • 206 / 624 -5700 cc: Joe Kirsten, construction Conversely, a taller pole at this location could transmit and receive signals from other tall celluar antenna facilities not intended to transceive signals. Such interference results in dropped phone calls, poor voice transmission and an inefficient cellular system. Cellular One staff considered other locations on the parking lot property. We looked at mounting an antenna on the existing Ajax billboard, but the billboard was too short for optimal radio signal transmission to the vicinity of Highway 99. We examined a pole location in the center of the parking lot, but parking spaces (the money generator for the lot) would have had to have been removed. The owner would not consent to that arrangement. Please let me know if you need additional information. Will our application be heard at the Planning Commission meeting on August 22? Sincerely, iel)214% 1491A) Roberta Goodnow Site Development JUL 2 6 1991 j f PLANNING DEPT. CITY OF TUKWILA t 3 1991 DEPARTMENT OF COMMUNITY DEVELOPMENT 15426 - 35th Avenue South OWNER BOARD OF ARC ITECTURAL REVIEW ;,- - - - -. _. DESICIL REVIEW APPLICATION 1. BRIEFLY DESCRIBE YOUR PROPOSAL: Construct antenna facility at Ajax parking lot (15426 - 35th Ave S). Project will consist of the installation of a 60' wood pole with antennas 'feed in cellular rnmmuniratinnc mnunted nn the tnp and the installation of a 8' X 24' a ui ment shelter.. PROJE Lp OCATION: Gi ve street address or, if vacant, indicate lot(s), block, and sub- division; or tax lot number, access street, and nearest intersection) Quarter: SW Section: 2 2 Township: 23N Range: 4E (This information may be found on your tax statement) 3. APPLICANT:* Name: Roberta Goodnow, Site Development, Cel 1 ul ar One Communications Address: 617 Eastlake Avenue E. Seattle, WA 98109 P on -•_ 389 -5269 Signature: Date: 6/20/91 * The applicant is th person whom the staff will contact regarding the application, and to whom all notices and reports shall be sent, unless otherwise stipulated by applicant. AFFIDAVIT OF OWNERSHIP 4. PROPERTY Name: 'Angel Lee, Inc. (John Lee) P. 0. Box 68925, Seattle, WA 98168 Address: Phone: John Lee: 439 - 9505/243 -8011 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3680 I /WE,[signature(s) swear that I /we are the owne ) or contract purchaser(s) of the property involved in this application and that e foregoing statements and answers contained in this application are true and correct to the / ��j best of my /our knowledge and belief. Date: ?- 7• #21 • BOARD OF ARCHITECTURAL REVIEW DESIGN REVIEW APPLI TION { Page 2 The following criteria will be used by the BAR in its decision - making on your proposed project. Please carefully review the criteria, respond to each criterion (if appropriate), and describe how your plans and elevations meet the criteria. If the space provided for response is insufficient, attach additional response to this form. 1. RELATIONSHIP OF STRUCTURE TO SITE A. The site should be planned to accomplish a desirable transition with the streetscape and to provide for adequate landscaping, and pedestrian movement 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 it site. RESPONSE: 2. RELATIONSHIP OF STRUCTURE AND SITE TO ADJOINING AREA A. Harmony in texture, lines, and masses is encouraged. B. Appropriate landscape transition to adjoining properties should be provided. C. Public buildings and structures should be consistent with the established neighborhood character. n la- D. .Compatibility of vehicular. pedestrian circulationpatterns and loading facilities in terms of safety, efficiency and convenience should be encouraged. E. Compatibility of on -site vehicular circulation with street circulation should be encouraged. RESPONSE: S € f - aches . >ee erttze du CRITERIA BOARD OF ARCHITECT AL REVIEW • DESIGN REVIEW APPLI PION 3. LANDSCAPE AND SITE TREATMENT A. Where existing topographic patterns contribute to beauty and utility of a development, they should be recognized and 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 encour- aged. F. Screening of service yards, and other places which tend to be unsightly, should be accom- plished by use of walls, fencing; planting or combinations of these. Screening should be effective in winter and summer. G. .1.1t areas where general planting will not prosper, other materials such as 'fences, walls, and pavings of wood, brick, stone, or gravel may be used. H. Exterior lighting, when used, should enhance the building design and the adjoining land- scape. 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. Y (u_ RESPONSE: Page 3 4. BUILDING DESIGN A. Architectural style is not restricted, evaluation of a project should be based on quality of its design and relationship to surroundings. B. Buildings should be to appropriate scale and be in harmony with permanent neighboring de- velopments. • BOARD OF ARCHITECTAL REVIEW DESIGN REVIEW APPLI :ION C. Building components - such as windows, doors, eaves, and parapets - should have good pro- portions and relationship to one another. Building components and ancillary parts shall be consistent with anticipated life of the structure. D. : should be harmonious,.with bright or brilliant colors used only for accent. E. Mechanical equipment or other utility hardware on roof, ground or buildings should be screened from view. F. Exterior lighting should be part of the architectural concept. Fixtures, standards and all ex- posed accessories should be harmonious with building design. G. Monotony of design in single or multiple buildings projects should be avoided. Variety of detail, form, and siting should be used to provide visual interest. mit RESPONSE: 5. MISCELLANEOUS STRUCTURES AND STREET FURNITURE A. Miscellaneous structures and street furniture should be designed to be part of the architec- tural concept of design and landscape. Materials should be compatible with buildings, scale should be appropriate, colors should be in harmony with buildings and surroundings, and proportions should be to scale. B. Lighting in connection with miscellaneous structures and street furniture should meet the guidelines applicable to site, landscape and buildings. RESPONSE: / 0-e ca:reie/ceaL Page 4 1. RELATIONSHIP OF STRUCTURE TO SITE A. The site should be planned to accomplish a desirable transition with the streetscape and to provide for adequate landscaping and pedestrian movement. The proposed antenna facility would be located on 988 square feet of the southeast corner of the 186,437 square foot property known as Ajax Parking Lot 2. It would occupy less than 1% of the parking lot property. Fencing surrounds the Ajax facility and access to the property and antenna site is restricted solely to those parking vehicles or Ajax staff transporting passengers to the airport. The proposed antenna facility does not front on a street nor would there be pedestrian activity. The perimeter of the Ajax lot has been landscaped with evergreen trees (possibly Norway or Brewer's Spruce) for the past 6 - 7 years. Most of these trees have grown to 10' - 15' in height. Immediately east of the antenna facility site is the West Colonial Apartment complex. Douglas Fir trees which are 25' -30' high have been planted along the fence separating the apartment complex from the parking lot providing additional screening of the proposed facility from the apartments. The existing young Douglas Firs , which should reach 40 ' - 50' in height and 20' width upon maturity, would provide pleasant permanent screening for the facility. The top of the (60') antenna would still be visible especially from the parking lot. B. Parking and service areas should be located, designed and screened to moderate the visual impact of large paved areas. The proposed antenna facility has been planned to minimize its visual impact on surrounding land uses. It's sited in a corner of a large paved parking area as close to the freeway as possible in the minimum amount of space necessary to accommodate the facility and minimize its interference with the parking enterprise operating on the property. A slatted 6' high sight- obscuring fence would be installed on the west and north sides of the antenna facility site. Existing trees in the vicinity of the proposed project will be retained or replaced if damaged due to construction. Only one Spruce tree actually lives on the antenna facility site. C. The height and scale of each building should be considered in relation to its site. The 192 square foot building which houses electronics equipment would be 10' high and have a sand brown washed rock aggregate finish. The building would be significantly shorter than existing buildings near the site. The apartment complex to the east consists of 35- 40' high two story structures and is situated "downhill" from the parking lot. 2. RELATIONSHIP OF STRUCTURE AND SITE TO ADJOINING AREA A. Harmony in texture, lines and masses is encouraged. The sand brown shelter has been selected as it mirrors color and material (washed aggregate rocks) found in natural surroundings . A treated dark brown wood pole with anodized grey antennas were selected as those colors would blend both with surrounding trees as they mature and with the skyline on overcast days so prevalent in Western Washington. B. Appropriate landscape transition to adjoining properties should be provided. As was described in 1 A above, the Ajax Parking Lot in the vicinity of the proposed antenna facility has been landscaped with weeping Spruce trees. Immediately to the east on the fence line of the West Colonial Apartments, Douglas Fir trees have been planted. There are 6 - 7 Douglas Firs (approx. 15' tall) grouped in the southwest corner of the apartment complex near the proposed antenna facility. Both tree species provide excellent landscape screening with little maintenance in our region. Both tolerate cool weather and will survive without irrigation during summer months provided they have water during the first few years after initial planting. C. Public buildings and structures should be consistent with the established neighborhood character. The character of the neighborhood is commercial and medium density multifamily. Because the proposed facility is small, it appears to be compatible with the surrounding land uses, particularly given the existing screening provided by the trees. D. Compatibility of vehicular pedestrian circulation patterns and loading facilities in terms of safety, efficiency and convenience should be encouraged. There is no pedestrian circulation anticipated as access to the property is restricted. Cellular One's construction manager, Joe Kirsten, has discussed emergency vehicle access to the antenna facility with the Assistant Fire Chief, Nick Olives. There will be two visits to the facility per month for maintenance purposes by one vehicle. E. Compatibility of on -site vehicular circulation with street circulation should be encouraged. See answer to D directly above. 3. LANDSCAPE AND SITE TREATMENT A. Existing topographic patterns: No changes to the topography will occur at the proposed facility. The topography to the east on the West Colonial apartments property slopes downhill and away from the parking area to the west. The slope makes the first floor of the apartment complex 10' - 15' lower than the Ajax Parking Lot. The second floor of the apartments closest to the facility appear to be almost at the same elevation as the parking lot. . B. Walkways, parking, terraces and paved areas This is not applicable to this project; none of these will be provided or enhanced. C. Landscape treatment should enhance architectural features and provide shade. The trees which are grouped near the site are 10' - 15' tall. The 60' wood pole will be visible, but given the sloped nature of the apartment complex property, the pole will be less visible from that angle than if the two properties were at similar elevations. The D, E, F, G & H shelter should not be visible from the complex and will be screened with fencing on the parking lot side. The Spruces planted on the parking lot property are known for their height, width (25' - 30'), symmetry and weeping nature. They make excellent visual screens and accent plants and tend to dominate landscaping; this characteristic makes especially attractive in the vicinity of the antenna facility where attention needs to be focused away from the pole. It's used extensively by the State Depart of Transportation along 1- 5 in the vicinity of south Seattle. There will be no additional exterior lighting unless the FAA requires the top of the pole to be illuminated given its proximity to the airport. Potential injury to trees and existing vegetation would not be a problem given the restricted nature of the property. Fencing will be provided and has been discussed previously. 4. BUILDING DESIGN See response to Questions 2 A & C above. 5. MISCELLANEOUS STRUCTURES AND STREET FURNITURE There will be no street furniture nor lighting provided unless the FAA requires it. The propos e .t A'ax Lot /2'3»ruce& Douglas Firs Close-up shot of the antenna site; spruce native venetation .'/ The fence adjacent to the proposed site. View is from the West CuloOiz - ' Apartments The view from the second floor of the closest dpt, at the West Colonial looking toward the proposed antenna facility. July 24, 1992 Mr. Donn Hogan HDR Engineering, Inc. Lincoln Plaza, Suite 200 11225 S.E. Sixth. Street, Building C Bellevue, WA 98004 -6441 RE: Interurban Pump Station Dear Donn: City of Tukwila 6200 Southcenter Boulevard • Tukwila, Washington 98188 John W. Rants, Mayor I have reviewed the proposed revisions to the landscape plan and have the following comments: 1. The six Flowering Cherry trees to be located directly behind the screen wall on the north and south sides of the building shall be 3 -inch caliper as originally proposed. The revised drawing shows 2 -inch caliper; 2. Please provide a revised scaled drawing of the elevation and section for the relocated odor scrubber. The elevation should also specify materials proposed for the screen wall and grading changes (berming) if any from the original proposal. I find the remaining changes to the landscape plan acceptable as shown on your submittal dated July 20, 1992. Please resubmit the revised drawings as soon as possible in order to get closure to this issue. Thank you. Sincerely, ' C AAL Denni Shefrin, Associate Planner Phone: (206) 433 -1800 • City Hall Fax (206) 433 -1833 4 mETRD Municipality of Metropolitan Seattle Exchange Building • 821 Second Ave. • Seattle, WA 98104 -1598 • (206) 684 -2100 June 24, 1992 Denni Shefrin Associate Planner Department of Community Development City of Tukwila 6300 Southcenter Blvd. Tukwila, WA 98188 Subject: Interurban Pump Station Odor Scrubber Relocation Dear Denni: As you requested, please find attached a letter from HDR Engineering, Inc. explaining our request to relocate the pump station odor scrubbers to the east side (behind) the station. Also attached is a revised site plan, revised elevation drawing, and revised landscape plan. If you have any questions during your evaluation of our request, please call me at 684 -2240. Very truly yours, C. C Sheldon C. Teel Project Manager SCT /sh Enclosure cc: Jim Blazier, HDR Marc Dallas Paul Miller JUN 2 4 1992 CIry u= IKW PLANNING DEPT.. 19- 108 -02 -60 June 23, 1992 Mr. Sheldon Teel Municipality of Metropolitan Seattle Exchange Building 821 Second Avenue, M.S. SC Seattle, WA 98104 Subject: Interurban Pump Station Odor Scrubber Location Dear Sheldon: The preliminary pump station design recently approved by the City of Tukwila's Board of Architectural Review (BAR) showed the two eight -foot diameter, eight -foot high activated carbon scrubbers immediately north of the pump station structure. Metro held a 50 percent design review workshop with representatives from Metro's Operations and Maintenance branches in late May (approximately one month after the BAR meeting). These Metro personnel were not directly involved in the design, but will be responsible for the proper operation of the facility after it is complete. The Metro reviewers expressed concern over a number of aspects with the odor scrubbing system. One concern was the height of the exhaust stack as compared to the ground and the top of the pump station structure. The exhaust from the scrubbers was shown approximately 11 feet from ground level, and five feet below the top of the station structure. It is desirable to have as high of a stack as possible above the structure, as the dispersion effects of the higher stack and the increased distance from personnel on the ground result in a much lower odor concentration at ground level. Metro directed that the stacks be raised to above roof level of the facility, or approximately 17 feet from the ground level. Extending the stacks another 6 feet from the current level may severely impact the aesthetics of the odor scrubbing facility. Another concern was the security of the odor scrubber vessels. The scrubbing vessels were originally viewed as pump station equipment that would be visible to visitors and would be used by the architect and the artist to convey information about the function, purpose and importance of the facility. However, during the review workshop, Metro representatives requested that a fence or other enclosure be placed around the scrubbers to discourage tampering or vandalism. The fact that the pump station site is not fenced, HDR Engineering, Inc. Suite 200 Lincoln Plaza 11225 S.E. Sixth Street, Building C Bellevue, Washington 98004 -6441 Telephone 206 453 -1523 Mr. Sheldon Teel Municipality of Metropolitan Seattle June 23, 1992 Page 2 yet has a public plaza and is being designed to attract people raises the potential for damage to the fiberglass odor scrubbers. Again, it can be seen that Metro Operations and Maintenance personnel's interests (a secure and protected facility) were at odds with the original concept (an open, visible piece of equipment for public education). In order to satisfy Metro's desires in an aesthetically pleasing manner, it will be necessary to move the scrubbing vessels away from the pump station structure. The proposed location is shown in the attached site plan (C301). The scrubbers would be enclosed in a circular brick wall approximately 9' - 10" in height. The enclosure wall would use the same materials and have the same design as the pump station walls. The front of the enclosure would have a metal screen gate of a design to match the screen wall separating the public plaza area from the pump station. The exhaust from the scrubbers would be approximately 15 feet from grade as measured from the access road around the pump station. However, the scrubber enclosure will be built into a landscape berm, and the height of the exhaust as measured from the top of the berm will be 12 feet. Elevation views of the pump station /scrubber enclosure are attached (A302). The areas vacated by the scrubber, as well as by the pig launch facility (Metro decided to reserve the space for the pig launchers in the future, if required), will be landscaped as shown in the attached pump station planting plan (1301). The proposed configuration is aesthetically pleasing, yet provides the security and effective air dispersion required by Metro. Although it represents a change from the original concept of making pump station equipment visible and more informative to the public, it is possible that the new configuration will be more attractive from the public's standpoint. The scrubbers will be further away from the public area and much less visible due to the enclosure and the new location behind the pump station. There will be more landscaping around the pump station in the areas previously occupied by the scrubbers as well as the pig launchers. Overall this proposed change should represent a win -win situation for Metro and the City of Tukwila. Very truly yours, HDR ENGINEERING, INC. Bruce Gravette, P.E. BG /sh Enclosure Re: City of Tukwila NOTICE OF DECISION Date: April 24, 1992, Applicant name: METRO Address:. 821 Second Ave., M.S. SC Seattle, WA 98104 -1598 r ' 6200..Southcenter Boulevard • Tukwila, Washington 98188 John W. Rants, Mayor Notice of Decision by the Board of Architectural Review and Planning Commission File Numbers: 91 -8 -DR and 91 -6 -CUP. This is to confirm that the Board •of Architectural Review (BAR) and Planning Commission approved the project design and a Conditional Use Permit for a proposed sewage pump station on April 23, 1992. (The Conditions are listed on Attachment A.) The BAR and Planning Commission adopted the findings and conclusions contained in the Staff Report dated April 16, 1992. Any changes to the specific design approved by the BAR will required further BAR approval. Minor, incidental changes may be administratively approved by the Director of Community Development. The decision of the BAR and Planning Commission is not final until the appeal period has elapsed, which' is ten calendar days after the above date of decision. Appeals must be filed in writing to the City Clerk by 5:00 p . m . on the final day of the appeal period. Where the final day of an appeal period falls on a weekend or holiday, the appeal period will be extended to 5:00 p.m. on the next work day. If you should have any question regarding this•project, please feel free to contact me at 431 -3663. Sincerely, ' Denni Shefr n Associate Planner cc: Sheldon .Teel Mark Dallas Ron Cameron Phone: (206) 433 -1800 • City Hall Fax (206) 433 -1833 ATTACHMENT A 91- 8- DR /91 -6 -CDP Metro Pump Station Condition 1. The building crown shall be strengthened in width or projection. Changes to be reviewed and approved by the Planning Division. Condition 2. That additional brick be used on the north and south building elevations (to be reviewed by the Planning Division prior to the issuance of building permits). Condition 3. That the doors and louvers on all elevations be painted a color which blends with the brick color (to be reviewed by the Planning Division prior to the issuance of building permits). Condition 4. That all proposed benches be designed with architectural interest, texture and integration with the project (to be reviewed by the Planning Division). Condition 5. That a plaque, sign or other structural element be placed on the site which provides information about the facility to the general public. The structure and location shall be approved by the Planning Division prior to the issuance of building permits. Condition 6. That the grasscrete along the ramp be omitted. Condition 7. That construction and permanent easements be granted by the City prior to the issuance of building permits. Condition 8. That widths and alignments for the sidewalk and trail comply with the Interurban Avenue Street Plan. This shall be verified prior to the issuance of building permits. should be flush with the building walls to create more space for landscape ."onal landscaping in this area would soften a hard surface effect created by the rautim and plaza. The grasscrete should be omitted so as not to interfere with handicap access. (5) Miscellaneous Structures and Street Furniture Illumination of the project at night would add life to Interurban. The art project would be back -lit by low -level lighting behind the glass block. The ramp would also be lit to enhance the span of the frame while providing a safe wallcing experience. Proposed benches should be designed to be architecturally compatible with the overall project. The Planning Division recommends the applicant's request for Design Review Approval be approved with.the following conditions: X 6)1 otc, ,, W> -t OG— cam vJo f 1hl That the roof -top element be omitted. That the building crown be strengthened in width or projection. Changes to be reviewed and approved by the Planning Division. i%u11 c rf' 3. That brick be used on all building facades rather than concrete. 4. That doors and louvers be painted to match the brick color. , Site Plai ` %BAs } I1�tL grit v' c M --� t \CqL, 51 � ce... C}.Q rl. — l.�U� �C1n/ �1.� 5. That all proposed benches be ddsigned with architectural interest, texture and integration with the project. 6. Move the screen wall back towards the building. Add landscaping between the wall and ramp. Omit the grasscrete along the ramp. 7. That a plaque, sign or other structural element be placed on the site which - provides information about the facility to the general public. The structure and location shall be approved by the Planning Division prior to the issuance of building permits. 8. That construction and permanent easements be granted by the City prior to the issuance of building permits. 9. That widths and alignments for the sidewalk and trail comply with the Interurban Avenue Street plan. This shall be verified prior to the issuance cif building permits. g Commission 91 -6 -CUP, 91 -8 -DR: METRO ,Lura1 Review Page 10 HEARING DATE: FIT F. APPLICANT: REQUEST: LOCATION: ACREAGE: COMPREHENSIVE PLAN DESIGNATION: ZONE DISTRICT: SEPA DETERMINATION: PLANNING STAFF: ATTACHMENTS: Denni Shefrin City of Tukwila A. B. C. D. E. F. G. Department of Community Development Rick Beeler, Director STAFF REPORT BOARD OF ARCHITECTURAL REVIEW/PLANNING COMMISSION Prepared April 16, 1992 April 23, 1992 91 -8 -DR and 91 -6-CUP Municipality of Metropolitan Seattle (METRO) Design Review and Conditional Use Permit Approval for the construction of a 7,915 square -foot sewage pump station. The site is located between the Tukwila Shops building and Foster Links Golf Course on the East side of Interurban Avenue South. The property lies within the Interurban Special Review. District. (.3 acres) approximately 13,460 square feet Light Industry and Commercial M -1 (Light Industry) and C -2 (Commercial) Determination of Nonsignificance issued August 19, 1991 John W. Rants, Mayor Vicinity Map Site Plan Pump Station Landscape Plan West Elevation (Colored elevations to be provided at hearing) East and West Elevations South and North Elevations Perspective Drawing 6300 Southcenter Boulevard, Sulte #100 • Tukwila, Washington 98188 • (206) 431 -3670 • Fax (206) 431-3665 Staff Report to Planning Commission and Board of Architectural Review VICINITY /SITE INFORMATION Surrounding zoning: FINDINGS 91- 6-CUP, 91 -8 -DR: METRO Page 3 Project Description: The site is located within the Interurban Special Review District and is on the east side of Interurban Avenue South between the City Shops building and Foster Links Golf Course. The project would involve the construction of a 7,915 square -foot 3 -level sewage pump station. The project would be built on approximately 13,460 square feet of City -owned property. The City and Seattle City Light would grant easements for the development. The project would also include an art project, a plaza and trail improvements' to provide a link to the Interurban /Green River Trail system. A 6-foot wide sidewalk would be installed adjacent to Interurban with an additional 8 feet of trail surface. An existing pump station located on the west side of Interurban would be removed once the proposed facility is in operation. Access to the site would be from Interurban on the north side of the project site. The drive would replace an existing driveway on the south end of the golf course. The project also includes the vacation of a portion of Maule Avenue. All mechanical equipment would either be enclosed within the building in order to muffle potential external noise or hidden from view by screen walls (see site plan, attachment B). Terrain: The site is relatively flat. A drainage ditch is located on the western edge of the property adjacent to Interurban Ave. The ditch would be filled and a culvert installed as part of the project. The City Shops building is separated from the site by Maule Avenue. North: RA (Agricultural) East: RA South: M -1 (Light Industry) West: C -2 (Regional Retail) Public Facilities: Existing utilities in the vicinity of the proposed project include water, gas, storm sewer, sanitary sewer, telephone and electrical power. BACKGROUND The West Point sewage treatment plant does not have the capacity to treat the Alki Staff Report to Planning Commission and Board of Architectural Review 91-6-CUP 91 -8 -DR: METRO Page 2 H. Letter from Nancy Lamb, Chairperson of the Tukwila Arts Commission. I. Design Review Application J. Conditional . Use Permit Application Below are items to be presented at the hearing: K. Photo with perspective overlay L. Aerial photograph M. Model O. Proposed material samples and colors Staff Report to Planning Commission 91 -6 -CUP, 91 -8 -DR: METRO and Board of Architectural Review Page 4 flows, particularly during peak storm events. METRO has proposed that the flows be transferred from METRO's, south Seattle service area to the Renton treatment plant. Secondary treatment would then be provided to wastewater collected from the Alki service area. The sewer line connection at 42nd Avenue South and Interurban Avenue South has overflowed into the Duwamish River during heavy rains. A new sewer trunk line would be installed and tied to METRO's regional treatment plant in Renton. The future sewer trunk line would require a Conditional Use Permit and is not part of this project. Art Proiect The art space would be about a 19 -foot x 19 -foot square and would incorporate tile risers and several metal sculptures and text inscribed in the tiled areas. Components of the art project would be representative of Tukwila's history including the Interurban rail station and the Duwamish River. A drinking fountain would also be incorporated within the space. The art project concept (funded by METRO), was presented to the Tukwila Arts Commission in January of this year. The project received a favorable endorsement by the Commission (see letter, Attachment H). The artist, Claudia Fitch, will be at the April hearing to describe the art project concept. Since no building permit would be required for the art project, the art project is exempt from BAR review. Interurban Corridor Study and Design Plan, 1978 In 1978, a study was prepared by a planning consultant with the assistance of the Department of Community Development to look at the Interurban corridor. Two design approaches were identified: LINEAR and AREA. In evaluating the development activity which has occurred along the Interurban Avenue corridor, it is clear that the pattern of development is linear, meaning that development is unified rather than clustered with open spaces in between. The staff report contains two sections: Design Review and Conditional Use Permit. Staff Report to Planning Commission 91- 6-CUP, 91 -8 -DR: METRO and Board of Architectural Review Page 5 DESIGN REVIEW DECISION CRITERIA Board review criteria are shown below in bold followed by staff's analysis. The applicant's response to the design criteria is attached to this report (Attachment J). 18.60.050 Review Criteria (I) Relationship of Structure to Site. A. The site should be planned to accomplish a desirable transition with the streetscape and to provide for adequate landscaping and pedestrian movement. 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. The proposed street trees are similar to those used along the golf course frontage. Continuity in materials help to achieve a stronger connection between different land uses and also serves to define pedestrian and bike access. The two groves of cherry trees further enhance the street. Proposed landscape materials along the sides and rear portion of the project are deliberately dense to screen the facility from the golf course and City Shops building as recommended by the Parks and Recreation Department. Service areas are located behind the building and screen walls which extend in both directions from the building. The sides and rear of the facility would be bermed and planted with dense landscaping including Douglas Fir trees. Less used service areas would be grasscrete (see attachment C). (2) Relationship of Structure and Site to Adjoining Area A. Harmony in texture, lines and masses is encouraged. B. Appropriate landscape transition to adjoining properties should be provided. C. Public buildings and structures should be consistent with the established neighborhood character. D. Compatibility of vehicular pedestrian circulation patterns and %ading facilities in terms of safety, efficiency and convenience should be encouraged. E. Compatibility of on -site vehicular circulation with street circulation should be encouraged Because it is difficult to define neighborhood character for this area, the proposal includes elements which help to transition the facility with the golf course, trail system and art project. Berming combined with tree types and placement would help to screen the facility from the golf course. Intrusion of vehicles with trail users would be minimized because of a single driveway to be used for servicing the facility only. Staff Report to Planning Commission 91- 6-CUP, 91 -8 -DR: METRO and Board of Architectural Review Page 6 The project also proposes a brick and concrete hardscape pattern which would extend the plaza to the curb line along Interurban. This surface treatment provides for a unique way of leading to a visual focal point which can be experienced by vehicle, pedestrian and biker traffic.. (3) Landscape and Site Treatment A. Where existing topographic patterns contribute to beauty and utility of a development, they should be recognized and 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 pedestrians or motor traffic, mitigating steps should be taken. E. Where building sites limit planting, the placement of trees or shrubs in paved areas in encouraged. F. Screening of services yards, and other places which tend to be unsightly, should be accomplished by sue of walls, fencing; planting or combinations of these. Screening should be effective in winter and summer. G. In areas where general planting will not prosper, other materials such as fences, walls, and pavings of wood, brick, stone, or gravel may be used. H. Exterior lighting, when uses, 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. As indicated earlier, site grading will include berms to blend with the golf course berm system. Seating areas would be provided within the lawn areas in addition to benches located at the base and along the ramp leading up to the facility. Proposed landscaping would enhance the architectural features by aligning the cherry trees on the building and plaza grid system. The tree and flower colors would accent the building and paving. Exterior lighting is proposed along the north and south screen wall to illuminate the rampway (a total of 10 lights enclosed in glass block). Additional lighting would be cast from the building's interior to the exterior plaza /art space. The glass block would serve to prevent unnecessary glare. (4) Building Design A. Architectural style is not restricted, evaluation of a project should be based on quality of its design and relationship to surroundings. B. Buildings should be to appropriate scale and be in harmony with permanent neighboring developments. C. Building components such as windows, doors, eaves, and parapets - should have good proportions and relationship to on another. Building components and ancillary parts shaU be consistent with Staff Report to Planning Commission . 91- 6-CUP, 91 -8-DR: METRO and Board of Architectural Review Page 7 anticipated life of the 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 buildings 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 building design. G. Monotony of design in single or multiple buildings projects should be avoided. Variety of detail form, and siting should be used to provide visual interest. The building would be three levels, only one of which would be above ground. The building height from finished grade in front would be 14 feet and 17.5 feet at the rear. The building has been designed to serve as a backdrop for the art project. The pump station would be accessed from Interurban. A plaza would be located in front of the building incorporating the art space. The grid pattern is carried from the building's facade through the plaza and onto the street by use of brick and concrete as surface treatment. A rampway would lead from the sidewalk/trail up to each side of the building front to enable handicap access as required by the American Disability Act. Fenestration (windows) would be maximized on the front elevation to encourage public viewing. Proposed colors and materials for the front facade include red brick with precast concrete banding and two types of glass block, one type would be more translucent than the second (glass samples to be provided at the hearing). The glass block allows both for a view of the building's interior and to provide back lighting for the art space at night. Separations between the glass block would be white metal. The applicant also proposes an architectural element of white screening at the top of the building. The screen wall would be an open lattice made of white painted metal similar to the screen wall. The 10 light fixtures would be enclosed in glass block with a concrete cap and base. The wall base would be brick. The side and rear elevations as proposed would be precast concrete with banding and a brick cornice. All doors, louvers and stair railings would be painted grey. The pig launchers and odor scrubbers (8 feet high) would be located behind the screen wall. Additional landscaping would be installed between the service area and screen wall. (5) Miscellaneous Structures and Street Furniture A. Miscellaneous structures and street furniture should be designed to be part of the architectural concept of design and landscape. Materials should be compatible with buildings, scale should be appropriate, colors should be in harmony with buildings and surroundings, and proportions should be to scale. Staff Report to Planning Commission 91 -6 -CUP, 91 -8-DR: METRO and Board of Architectural Review Page 8 B. Lighting in connection with miscellaneous structures and street furniture should meet the guidelines applicable to site, landscape and buildings. . Precast concrete benches would be incorporated into the plaza grid pattern. Additional seating would be part of the art project. Site lighting would be incorporated into the glass block elements of the building and screen wall. A drinking fountain would be one of the art objects. INTERURBAN SPECIAL REVIEW DISTRICT 1. The proposed development design should be sensitive to the natural amenities of the area. The landscaping of the site reflects and extends the golf course landscaping to the north. Other landscaping shapes and defines the site and public areas. No immediate landscape features currently exist. 2. The proposed development use should demonstrate due regard for the use and enjoyment of public recreational areas and facilities. This project incorporates the future bike trail and sidewalk by encouraging site access and use. This building provides a rest stop and point of interest along Interurban Avenue. 3. The proposed development should provide for sae and convenient on -site pedestrian circulation. Both stairs and ramps provide access to the plaza level and art project location. Proximity to the street and night lighting give convenient access and safety. Also, see No. 2 above. 4. The proposed property use should be compatible with neighboring uses and complementary to the district in which it is located The design for this building de- emphasizes the operational aspects of this structure and conversely emphasizes public use and interaction along the street front. 5. The proposed development should seek to minimize significant adverse environmental impacts. The site plan separates and screens the operational areas from the public areas and street front. The perimeter of the site provides a buffer to adjacent properties. Also, see No. 4. 6. The proposed development should demonstrate due regard for significant historical features in the area. Staff Report to Planning Commission 91- 6-CUP, 91 -8-DR: METRO and Board of Architectural Review Page 9 Historic relationships are to be incorporated into the art project in the public plaza area. Specific objects, text and materials for these commissions will be determined at a later time. The applicant has demonstrated a unique design approach to a necessary facility which is commonly unsightly and intrusive within a community. The proposal achieves architectural harmony by incorporating the grid pattern into the building, the plaza area and sidewalk. Tukwila is fortunate to be a recipient of a regionally - funded art project designed to be integrated with the building and site design. (I) Relationship of Structure to Site. The site is currently vacant. The project would serve to create a streetscape and provide visual interest along this portion of Interurban. Little change would occur to the existing land form except for added berming. The overall project would provide a unique place of interest, interaction and rest along the Green River Trail System. (2) Relationship of Structure and Site to Adjoining Area. See No. (1) above. Further, the hardscape or surface treatment serves to introduce the project to passersby. (3) Landscape and Site Treatment Tree types would be similar to those in front of the golf course in order to frame the sidewalk and trail along Interurban. Berming combined with dense landscaping would be successful in blending with the sculptured land form of the golf course while proving ample screening of the facility. The plaza area would provide an interest node along the trail where trail users could learn about pieces of Tukwila's history contained within the art space. It is recommended that a plaque, sign or similar device be placed on site which describes the pump station. (4) Building Design CONCLUSIONS The project demonstrates a unique approach in design for a pump station. The simple natural elements used in the building design (brick and glass) create a frame for the art project. The frame is augmented by carrying the grid pattern along the hard surfaces of the plaza and out to the curb. To provide for stronger continuity, all building elevations should be brick., Doors and louvers colors should blend with the brick. The roof -top element should be omitted to keep the frame simple. Because the roof is flat, the edge should be strengthened either by projecting the cap, or by widening. Staff Report to Planning Commission 91 -6 -CUP, 91 -8 -DR: METRO and Board of Architectural Review Page 10 The screen walls should be flush with the building walls to create more space for landscape area. Additional landscaping in this area would soften a hard surface effect created by the ramps and plaza. The grasscrete should be omitted so as not to interfere with handicap access. (5) Miscellaneous Structures and Street Furniture Illumination of the project at night would add life to Interurban. The art project would be back -lit by low -level lighting behind the glass block. The ramp would also be lit to enhance the span of the frame while providing a safe walking experience. Proposed benches should be designed to be architecturally compatible with the overall project. The Planning Division recommends the applicant's request for Design Review Approval be approved with the following conditions: Building Site Plan RECOMMENDATIONS 1. That the roof -top element be omitted. 2. That the building crown be strengthened in width or projection. Changes to be reviewed and approved by the Planning Division. 3. That brick be used on all building facades rather than concrete. 4. That all doors and louvers be painted to match the brick color. 5. That all proposed benches be designed with architectural interest, texture and integration with the project. 6. Move the screen wall back towards the building. Add landscaping between the wall and ramp. Omit the grasscrete along the ramp. 7. That a plaque, sign or other structural element be placed on the site which provides information about the facility to the general public. The structure and location shall be approved by the Planning Division prior to the issuance of building permits. 8. That construction and permanent easements be granted by the City prior to the issuance of building permits. 9. That widths and alignments for the sidewalk and trail comply with the Interurban Avenue Street plan. This shall be verified prior to the issuance of building permits. Staff Report to PIanning Commission 91- 6-CUP, 91 -8-DR: METRO and Board of Architectural Review Page 11 CONDITIONAL USE APPLICATION A. The proposed use will not be material detrimental to the public we(/are 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. See responses to Nos. 1, 2 and 4 contained in Design Review discussion. B. The proposed use shall meet or exceed the performance standards that are required in the district it will occupy. See responses to Nos. 1 -5 in Design Review discussion and response 1 -6 under Interurban Special Review District. C. The proposed development shall be compatible generally with the surrounding land uses in terms of traffic and pedestrian circulation , building and site design. See response No. 2 (Design Review) D. The proposed use shall be in keeping with the goals and policies of the Comprehensive Land Use Policy Plan. This facility complies with the goals and policies for utilities outlined by the Comprehensive Land Use Policy Plan: Sidewalks/Pathways : Objective 6. Create a functional, safe and convenient sidewalk or pathway system. Sanitary Sewer System : Objective 3. Provide an efficient and adequate sanitary sewer service to residents of the city. Policy 1. Coordinate with METRO for the continued treatment of sanitary waste. Design: Policy 4. Gauge the size of the new sanitary sewage systems to the expected requirements of the area's planned land use. Policy 5. Design new sewer systems to allow for their extension into potential future service areas. 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. See response to Nos. 1 and 2 (Design Review) Staff Report to Planning Commission and Board of Architectural Review CONCLUSIONS 91- 6-CUP, 91 -8 -DR: METRO Page 12 The project as proposed meets each of the Conditional Use Permit criteria (see Design Review Criteria 1 -5). The proposal also complies with the Comprehensive Land Use Policy Plan policies and objectives for sidewalks, pathways and for sanitary sewer systems. The project further meets the intent of the LINEAR approach described in the Interurban Corridor Study and Design Plan. This is accomplished by providing a continuous edge along the street by use of trees. The proposed hardscape connect the project to the street both visually and functionally. The change in surface treatment better delineates the property's space for trail users. The conditions recommended for Design Review approval would further enhance the design of the facility and ensure its compatibility with surrounding land uses. RECOMMENDATIONS The Planning Division recommends approval of the Conditional Use Permit with the Design Review conditions discussed earlier in this report. 0 LJAr►U V1 Nr.loraI 1 Z.1.. 1 l�r -' ilL V laVV DESIGN REVIEW APPLI" \ .. .)N CRITERIA The following criteria will be used by the BAR in its decision - making on your proposed project. Please carefully review the criteria, respond to each criterion (if appropriate), and describe how your plans and elevations meet the criteria. If the space provided for response is insufficient, attach additional response to this form. 1. RELATIONSHIP OF STRUCTURE TO SITE A. The site should be planned to accomplish a desirable transition with the streetscape and to provide for adequate landscaping, and pedestrian movement. 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 it site. RESPONSE: A. The building is located adjacent and parallel to Interurban Ave. to permit pedestrian and bicycle access. Street trees and grove of cherry trees enhance the street front. Page 2, B. Service areas are located behind the building and screen walls which extend in both directions parallel to the street. The sides and the back of the site are bermed and planted. C. The building maintains a one -story apparent height as much of the structure is buried or is below the public plaza. 2. RELATIONSHIP OF STRUCTURE AND SITE TO ADJOINING AREA A. Harmony in texture, lines, and masses is encouraged. B. Appropriate landscape transition to adjoining properties should be provided. C. Public buildings and structures should be consistent with the established neighborhood character. D. Compatibility of vehicular pedestrian circulation patterns and loading facilities in terms of safety, efficiency and convenience should be encouraged. E. Compatibility of on -site vehicular circulation with street circulation should be encouraged. RESPONSE: A. The only nearby building is the Tukwila Shops building which has little design significance. This building is smaller. B. The perimeter of the site is landscaped. Special consideration is given to transition to the golf course. • C. There is no established neighborhood character, however, the newer office buildings are mostly of painted concrete and glass. D. The future sidewalk and bike trail have been integrated with the site, public plaza and art project. Service and operation areas are located away from public areas. E. On -site vehicle circulation is by operators only and is intermittent. CITY OF TUKWILA DEPARTMENT OF COMMUNITY DEVELOPMENT 1. Es OAHU OF ARCHITECTURAL REVIEW DESIGN:' REVIEW ..Receipt BRIEFLY DESCRIBE YOUR PROPOSAL: — ' - ATZR,r P STATION (Replacement Facility) PROJECT LOCATION: (Give street address or, if vacant, indicate lot(s), block, and sub- division; or tax lot number, access street, and nearest intersection) Interurban Ave. at Tukwila Shops (Volvo - White) Quarter: Section: Township: Range: (This information may be found on your tax statement) 3. APPLICANT:* Name: Address. Phone. Signature: Date: * The applicant is the person whom the staff will contact regarding the application, and to whom all notices and repu..s shall be sent, unless otherwise stipulated by applicant. AFFIDAVIT OF OWNERSHIP APPLICATION 6300 Southcenter Boulevard, Tukwila, V, 'A 98188 Telephone: (206) 431 -3680 4. PROPERTY Name: OWNER Address: Phone: I /WE,[signature(s)] swear that I /we are the owner(s) or contract purchaser(s) of the property involved in this application and that the foregoing statements and answers contained in this application are true and correct to the best of my /our knowledge and belief. Date: ATTACtNENT I t$UiAr -t Ut- Hr,trrit Ut'SHL 11GVLGVt DESIGN REVIEW APPL" \TION Page 3 3. LANDSCAPE AND SITE TREATMENT A. Where existing topographic patterns contribute to beauty and utility of a development, they should be recognized and 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 encour- aged. . F. Screening of service yards, and other places which tend to be unsightly, should be accom- plished by use of walls, fencing, planting or combinations of these. Screening should be effective in winter and summer. G. In areas where general planting will not prosper, other materials such as fences, walls, and pavings of wood, brick, stone, or gravel may be used. H. Exterior lighting, when used, should enhance the building design and the adjoining land- scape. 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. RESPONSE: A. Site grading will include berms to blend with the golf course system of berms. B. Gently sloping lawns, ramps and stairs are designed for safe access and a variety of seating options. C. Groves of flowering cherry trees are aligned on the building and and plaza grid system. Tree colors and flower colors will accent the building and paving colors. D. Branches of trees in pedestrian corridors should be pruned to a height-of 7'. A 14' clearance should be provided at vehicle access points. Reinforced lawn will accommodate vehicle loads in the turn around area. E. Trees are integrated into the plaza by the grid system layout. F. Building related screen /walls are used primarily, as are shrubs. H. Site lighting will augment building lighting and will be used at points of entry to stairs and ramps. 4. BUILDING DESIGN A. Architectural style is not restricted, evaluation of a project should be based on quality of its design and relationship to surroundings. B. Buildings should be to appropriate scale and be in harmony with permanent neighboring de- velopments. .� i,-.0 to VC il- '.r...'.'Ai : �..1 Lir. L :,■:.v lL:vr DESIGN REVIEW APPLI )N Page 4 C. Building components - such as windows, doors, eaves, and parapets - should have good pro- portions and relationship to one another. Building components and ancillary parts shall be consistent with anticipated life of the 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 buildings should be screened from view. • F. Exterior lighting should be part of the architectural concept. Fixtures, standards and all ex- posed accessories should be harmonious with building design. G. Monotony of design in single or multiple buildings projects should be avoided. Variety of detail, form, and siting should be used to provide visual interest. RESPONSE: A. Careful attention to materials and details define this building as one element in a future continuous streetscape. B. One -story building height is equal or less than neighboring buildings. C. The street front elevation is highly articulated and proportioned to encourage'public access. Fenestration is maximized on this side with variations of glass block patterns. D. The street front and public areas will consist of red brick, precast concrete, glass block and white accents. The operations side will be brick and painted concrete. E. •A parapet shields the roof and screen walls hide the operations areas and equipment from the street. F. Night time lighting is achieved by back - lighting the glass block on the building and with the glass block light fixtures of the See C. screen wall. 5. • MISCELLANEOUS STRUCTURES AND STREET FURNITURE A. Miscellaneous structures and street furniture should be designed to be part of the architec- tural concept of design and landscape. Materials should be compatible with buildings, scale should be appropriate, colors should be in harmony with buildings and surroundings, and proportions should be to scale. B. Lighting in connection with miscellaneous structures and street furniture should meet the guidelines applicable to site, landscape and buildings. RESPONSE: Precast concrete benches are incorporated into plaza grid pattern. Additional seating will be part of the Art Project. Site lighting is incorporated into the glass block elements of the building and screen wall. A drinking fountain will be one of the art objects. :1' ✓i- - 1:J vi H►'lvi ►1 .-v t vi ►iii- 1'►l= ►L.YY DESIGN REVIEW APPLI' TION Page 5 INTERURBAN SPECIAL REVIEW DISTRICT The following six criteria are used in the special review of the Interurban area in order to manage the development of this area, to upgrade its general appearance, to provide incentives for compatible uses, to recognize and to capitali 7e on the benefits to the area of the amenities including the Green River and nearby recreational facilities, to encourage development of more people - oriented use, and to provide for development incentives that will help to spur growth. Please describe how your proposed development relates to the goals for this District. Use additional response space, if necessary. 1. The proposed development design should be sensitive to the natural amenities of the area. The landscaping of the site reflects and extends the golf course landscaping to the north. Other landscaping shapes and defines the site and public areas. No immediate landscape features currently exis` 2. The proposed development use should demonstrate due regard for the use and enjoyment of public recreational areas and facilities. This project incorporates the future bike trail and sidewalk by enrnuraging site access and use. This building provides a rest stop and point of interest along Interurban Avenue. 3. The proposed development should provide for safe and convenient on -site pedestrian circu- lation. Both stairs and ramps provide access to the plaza level and Art Project location. Proximity to.the street and night' lighting give convenient access and safety. Also, see No. 2. 4. The proposed property use should be compatible with neighboring uses and complementary to the district in which it is located. The design for this building deemphasizes the operational aspects of this structure and conversely emphasizes public use and interaction along the street front. 5. The proposed development should seek to minimize significant adverse environmental im- pacts. The site plan separates and screens the operation areas.from the public areas and street front. The perimeter of the site provides a hnfffr to ac9jacent properties. Also, see No. 4. 6. The proposed development should demonstrate due regard for significant historical features in the area. Historic relationships are to be incorporated into the Art Project in the public plaza area. Specific objects, text and materials for these comissions will be determined at a later time. �_ CC�NDIT AL USE I [ JAN 0 7 1992 A PLICATION C ITY OF TUKWILA CITY OF TUKWILA \6300 Southcenter Boulevard, Tukwila, WA 98188 rti vin!� �1= DEPARTMENT OF COMMUNITY DE Et-6P p PT. Telephone: (206) 431 -3680 1. BRIEFLY DESCRIBE YOUR PROPOSAL: (Replacement Facility) 2. PROJECT LOCATION: (Give street address or, if vacant, indicate lot(s), block, and sub- division; or tax lot number, access street, and nearest intersection) Interurban Avenue at Tukwila Shops (Volvo- White) Quarter: SE Section: 14 Township: 23N Range: 4E (This information may be found on your tax statement) 3. APPLICANT:* Name: METRO attn: Marc Dal as Address: 821 2ND. Ave. M/S 122 Seattle, WA. 98104 - 1598 Phone: (2 ) 684 - 1332 Signature: '�- a . Date: 1.06.92 * The applicant is ti per n whom the staff will contact regarding the application, and to whom all notices and reports shall be sent, unless otherwise stipulated by applicant. 4. PROPERTY Name: OWNER Address: AFFIDAVIT OF OWNERSHIP Wastewater Pump Station Phone: I /WE,[signature(s)] swear that I /we are the owner(s) or contract purchaser(s) of the property involved in this application and that the foregoing statements and answers contained in this application are true and correct to the best of my /our knowledge and belief. Date: ATTACHMENT J CONDITIONAL USE APPLICATION Page 2 5. 'PRESENT USE OF PROPERTY: Not in use (vacant) 6. PROPOSED CONDITIONAL USE REQUESTED (from list in TMC 18.64.020): Wastewater Pump Station 7. ADJACENT North: Foster Golf Links LAND South: Commercial USES East: Tukwila Shops West: Interurban Avenue (Commercial on opposite side of street) 8. DETAILED DESCRIPTION OF PROPOSED USE (for example, describe the manufactur- ing processes used, wholesale /retail /warehouse functions, outside storage of goods or equipment or other information which will facilitate understanding of the activities you proposed to develop on this site): This facility is for pumping wastewater in the Tukwila trunk sewer to the Renton treatment plant. 9. Will the conditional use be in operation and /or a building to house the use be started within a year of issuance of the permit? No, within 2 years. 10. Describe the manner in which you believe that your request for a Conditional Use Permit will satisfy each of the following criteria as specified in TMC 18.64.030 (attach additional sheets, if necessary). 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. RESPONSE: This facility is primarily located below grade insuring limited public access and maximizing public safety. The public plaza, art project and access to the bike trail enhance public welfare. B. The proposed use shall meet or exceed the performance standards that are required in the district it will occupy. RESPONSE: This facility complies with all operation and performance . standards required by the City for utilities. CONDITIONAL USE APPLIC (ION Page 3 10. (continued) C. The proposed development shall be compatible generally with the surrounding land uses in terms of traffic and pedestrian circulation, building and site design. RESPONSE: This facility is being designed under the guidelines of the Interurban Special Review District and will be reviewed by . the Board of Architectural Review. D. The proposed use shall be in keeping with the goals and policies of the Comprehensive Land Use Policy Plan. RESPONSE: This facility complies with the goals and policies for utilities outlined by the comprehensive land use plan. 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. RESPONSE: This facility emphasizes the street and public areas while de- emphasizing the visual and physical impact of the pumping station and its operations. 4 t AL VICINITY MAP N i �ThL F11i1ddII0!! WIIDIO: V-1. (lArr.b. iottr.Y. drb) Aee,e. Sir (tageogot0 4W we L Yl/ss Una iter Z011 ey 6 Lr. flee 2143gt Ia.r floe Ma.1L .1UrAL 7.013 arse: a•r.lc SLOL1 2111wf Om* Nast sic. SOH aft. • 1111AL tacos +L• Setsde 5„c X S6: / Iter. Slu Hei11c eT • 1,i Asa do. got Odd, e.1 to ratog whatelal Dememos La. w 1n lrfl FER HDR Engineering. Inc. And A,.oebled F n, COT OS A 7 7 c D • 7 r 0.101.11. -m -dP PRELIMINARY ETR0 YeeI.o..Dt, N•In.edtee s,.,w I� 4/1/ 92 coarlon as VICINITY MAP 00 b• G-1 c N A J CONNECT NEW j,OtF UNXS ACCESS ROAD,10 'ME EXISTING. TMS AREA PROPOSED TEUP CONSTRUCTION EASEUENT/ BOUNDARY DOSE GOLF LINKS ACCESS ROAD 315' WIDE (TO BE ABANDOPIED AT CONPLETION OF THE PROJEC / 'P N) '4o- LA po- / 7603' / c, 4C'.. \+ \ / -). 4pr �-ELECTIOCAI/ TRANSFOtUER O PROPOSED TEMP CONSTRUCRON EASEUENT BOUNDARY EXIST fH PROPOSED EASEUENT BOUNDARY PROPERTY (=TKO 1, / 1, \ \ N / PROPOSED PUUP STADOr( /1 // i -••• • QI )� I (LI I,E PIG LAUNCHERS GRASS BLOCK • AREA - liSCs; XF-- :MST FENCE 2D' %IDE UAULE AV£ R/W (TO BE VACATED) I o k CITY OF TUXYALA ,,.• PROPERTY— PROPOSED EASEUENT BOUNDARY (0) UNITS OF TEUP CONSTRUCTION EASEUENT FOR PULP STATION CRAKL -8 IART NtOiECT is �( Hd.;n:1 •Mike; TM PROPOSED INTERURBAN AVE. SOUTH R/W—\ BIKE PAIN SDEWALX 8 COKAETE TFP. 0 2 • EXIST INTERURBAN AVE- S0. RA PROPOSED TEUP CORSTRUCRON EASEUENT BOUNDARY PRELIMINARY 1 a n A OITE 1-01 HDR Engineering, Inc And Associated Fb., 0 elen swats ttAc w.. wcnu We I m Lr `- METRO Wunkt UtfetW.vep.lR. e..w. ''`.1/V92 rex, mnItURe1N PROJECT SITE PLAN 7 eat w• A • [ SALAL 0 24. O.G. 1 CAL • EKISIWC OQiCLAS CONNECT N{'IR.C9060.11l'1± ACCESS ROAD'70 TAE E0SRNG. THrS AREA (22) BARBERRY. 5 CAL CLAS NC 10-12' 10-12' EXIST FENCE /COcl SOMME • (6) ELOYLE ;?15F R.�)'.2 d CAL KINN1K1 NICK O 118''C�l G. 4 PO (15) LAUREL 2 GAL - - (17) ABEUA. 5 CAL..•, ON ?.STATKM— QARQERRT. 5 G iniii miili w421w1121Caskateafrit s.€'+1i3■smam•ma eAlleArAISIL AI azar .,'• vwG. 6leaur bcovex 9:0 1 40 4L � tsar"?4:6:9 sifeiCA,9i?060We• es') 44:j .c�P .0-.–yc - ri t' ��,% PROPMiT STRUCTION xii • _ • e�ec.tp anlN, aRY 11 CAL• 4.imETR0 ICALL • • HIM Engineering. Inc. Md Assocklb JSYnn awn 30,ntit 45 Pe. ea IM.+Kr...o Cool (051)56117010 c D E P O V .pa -.r V LnNCIp lltp a Metropolitan Sinitic MGtMNM PROW PUMP' STATION PLANTING PLAN L301 ..n ..moo... A c c 1-10TE.t 6R 4TH 94:1-1,4 PLT 15 YEA cr. Etta+r14. • WEST ELEVATION vl 1'A X. LLEs 5i1a-11-01 1-42.14 "DELLA LAUREL WNrJIKnWIGK LPREL1 fINARY i • Al: a.. _ •- l •-.y,• 1 rtl... c' HOR Engineering Inc. And AsspenaIM lima .ctnc.SVI reaECT A • • frA • c • L302 4 4 4 A 0 �1c .aV.:'nn , ..' 1 ..•I ,iiiiii �iiui' :::u��5_ ,IN. mn -1 tMUCK TYP. MAK''." .r. nr n nnnnuluu • . m Nmnnunwn 1 i unmm1l nr uununn m nr ''." lli.l'.,,1,n':Ill'M:: ll,lI::IIIII„II, III i1,i,ml„iil' rrr Nllllll l 111 rr• —___—••""'ii'ii :ii'iiiiiii'Niii ""22I' . METAL OCAEEN FENCE PAINTED "nun dJw rnc[ {TONT ,uttTtNlEt TTG � _ :i.irin i ,r 11 HEM rypN yy .. 1111111111111 II:':Illlllllllll,tllllllillllilll 111 � "I::. IIIInII III�,III�:::� ` i s - - W4 6Y1Y../I ��i YYYYYIIYYLJYYYM.1daliiYailili liflil`. IIIb' ,r...,f�l,m„II Ilnn.o n nnnm,mll... 1,IN,11,1,NNlu...m1 I,n, prnuwurnnnp.n Hr mnnnnuuu",N"u. 1 •: mumnvniim11:r: II IIII,I '"' �_ _ IINIIIIi21l nrmtnwNl„I,nmm unln/1'1'11y1`I llltN1Nu.um7�Inunmwurnmrunuiml,ln,r:::�1°} unlingnnNNlnru+tnnuuu::: •” 'IT p ll,liiiiiiiilillin I 'u . Il! lllil llllll O.,nN null Illlllnlrq'Inl�;',;illi iiiZl�iil:::Iii:7nlill m111111••.11111'1"u"ul,uiiii'O.Itllt I,,,,.rr „nn,n,n„1,1 u,n• ,m,,,n,, ..., , �_��� ice„ u.0 WEST ELEVATION i rI`ASOn err DcTc ♦ t. HI)li Lbrp3neering.. Inc. 'Awl ?ffx%otee l.or • nn... 'Cram PRELIMINARY 6 Irl ETR O ■wutlpat, of r.tr.T& t.s E..tw Wl rrt[e11rMN MAC atlr' . 1-0* ELEVATIONS r 4/1/92 A-1 L • SOUTH ELEVATION [MUCK. TIP. CMETAL ECR EN PENCE, PAINTED (WHIM NORTH ELEVATION 1.s- _• COOK SCRUEEERE 101 FREW) • PRELIMINARY O. M 0[la5[t. O.rE HDR Enq;necrring. Inc. Are ARRoc.Rlf0 P:..f 7 . A 9 IM1 METRO YunN.pnl1 .a Y.V.p.Yl.n S..114 .I[C.M.DIC YII'-1-0' .7. W1001001 PRT C ELEVATIONS C .. 192 II CY;a=\ _./.k-2 I • . _ • A A A A A - • • I • 46 ..• ACN. Il . -. 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(...13 i.1 (V l•e-:•C•a•Ae —.— 3 • . . v— PERSPECTIVE E V • w • • January 16, 4992 Councilmember Jim Street Chairperson - Metro Arts Committee 821 Second Ave., MS-130 Seattle, WA 98104 -598 Subject: Project Art for the Interurban Metro Pumping Station Dear Councilmember Street: The Metro Arts Program Coordinator Carol Valenta brought a group of personnel involved in the subject Metro project to make presentations at the monthly meeting of the Tukwila Arts Commission, which was held on Tuesday, January 7th. Project artist Claudia Fitch and her associate Judith Roche described the current refined form of the art elements. They have obviously researched the history of the locale with thoroughness and with sensitive care for the history and feeling of place. Both the total concept and the artistic details are well indicative of this. The Tukwila Arts Commission herewith expresses its enthusiasm for, and endorsement of, the art concept as it has been presented. We look forward expectantly to the time of construction and installation of the art project and feel it will be an outstanding addition to the appearance of Interurban Avenue. Sincerely, J 76(4t-et .,��1 ✓v' -� l Nancy Lamb Chairperson - Tukwila Arts Commission cc: Mayor John W. Rants Allan Ekberg Don Williams Lynn Devoir Jack Pace fD OL,frir<) 4 WeAV 7v.- � T`T'+.NM� Carol Valenta Claudia Fitch - City of Tukwila 6200 Southcenter Boulevard • Tukwila, Washington 98188 Phone: (206) 433 -1800 • City Hall Fax (206) 433 -1833 John W Rants, Mayor @ 10 D JAN 211992 CITY Or TUY.VI'iLA PLANNING DEPT. ATTACHMENT H tcsooe.L. ftvoio 4 - 1 0.° ) 1 z- q siv•rz • 'Tv 7 . 1 be €1. City of Tukwila MEMORANDUM TO: Rick Beeler, OCD Director FROM: Don Williams, Parks & Recreation Director DATE: April 13, 1992 SUBJECT: METRO PUMP STATION PROJECT 6200 Southcenter Boulevard 0-Tukwila, Washington 98188 John W. Rants, Mayor Phone: (206) 433 -1800 • City Hall Fax (206) 433 -1833 This memo is to endorse the Metro Project and confirm the support of the Parks and Recreation Department and the Tukwila Arts Commission. I have received the packet of information for the Metro Pump Station and have submitted my additions to Denni. We are in agreement with the project and are pleased with the integration of the trail. This will serve as a memorable resting place for trail users as well as a suitable place for public art within the City. The Metro staff have worked diligently with the City to assure that we have input into this project and this department has been pleased to be a part of this process. Again, we do support the Metro Pump Station and urge the BAR to endorse this project. METRO PUMP STATION PRIMARY DESIGN ISSUES: _Building Facade: .---- 4/2/92 3 4/2/92 Side elevations should be consistent. Use brick rather than concrete as shown on the north and south elevations. Doorways /louvers painted contrast color or green as provided. 3/27/91 Don indicated that because of the number of doorways and louvers, and their placement and different sizes, brick would appear very unbalanced. As a compromise, we agreed to a brick band at the top of the wall (cornice). Revised drawings show brick banding at the top on the north and south elevations. Front elevation. Omit rooftop element. Integrate tile pattern to carry elements of art project. A tile pattern need not be symmetrical in order to gain stronger continuity with the art project. Revisit need for reveals. Clarify material /color which horizontally appears to separate the glass block sections. The rooftop element is metal lattice to emulate the screen wall and not glass block. Don indicated he'd receive a positive reaction from others and seemed unwilling to omit it as an element whose purpose is to carry thru some verticality and grid and to lessen the horizontalitality. Rooftop element retained. Does help to break up horizontality of bldg. given recent width expansion. Will be metal lattic painted white. Hardscape /Plaza Reduce amount of hardscape. Increase landscaping. Consider incorporating handicap access with stairway (i.e. Portland's 3/27/92 Pioneer Place). The ramp augments the dominance of hardscaping which creates the potential for a high activity area considered nonconducive in a suburban environment. This area should be softened with landscaping. The groundcover /grasscrete conflicts with softening. Access for the ramping and stairway other than the art project area could integrate colored tile. For example, incorporate tile pieces into risers only. The pattern need not be symmetrical. 'My personal feeling is that the plaza is a welcome element. Because of the trail system, it's potential for functioning as a resting point is very high, The issue of surburban inappropriateness does not apply. The whole project concept would provide an amenity to the corridor. It's potential function would be inherently limited because the space is limited. The ramp is a static element..handicap access is required by federal law. Both funtions operationally and visually. We did discuss the possibility of increasing landscape areas using grasscrete along the base of the screen wall. This will be examined and probably incorporated in a revised site plan. There will be no further changes to the building facade. All block areas are either glass block or transparent glass. In addition to control panels and lights, there will be piping and other fixtures visible from the outside which will draw interest to viewers. The art project will include text describing historical events which have occurred within the Duwamish corridor in addition to the art pieces presented in concept earlier. The text will be inscribed in the surface tile within the art space. I requested that seating areas become extensions of the art theme. Screen Wall. Tile could also be integrated into wall base. Benches can successfully become art forms incorporating a mixture of masonry and tile elements. 4/2/92 After meeting with Don it became obvious to me that the art project and building design have been so closely integrated in the program approach between the architect and artist that a majority of the changes we've discussed would result in ommitting the art entirely. Landscaping The landscaping proposed behind the wall is ineffectual. Additional questions /comments: What is the overall height of the order scrubbers? From where would they be visible? 3/27 The scrubbers would be the same height as the screen wall. The intent of the landscaping behind the wall is to further screen the scrubbers. The landscape materials will eventually grow up and over the wall within the trellis work. Additional landscape area has been increased against the wall on the pedestrian side by using grasscrete. The surface would still be functional for access but would appear soft. The scale(s) shown on the drawings should be consistent. The project, both building and art, have merit which shouldn't be ignored and will provide an obvious amenity to the city, to the corridor, etc. Additionally, what shouldn't be ignored is an unanticipated precedent to Interurban with respect to innovative design. Rather than look at the central portion of the proposal as a "plaza", it should be viewed as an interest node ...perhaps one of several which could be located along the Green River Trail. This project meets every design criteria considered by the Board of Architectural Review with the single exception of contextual harmony. No desirable context has been established at this location. The pump station is an isolated functional structure which has taken creative liscense in uniqueness given the use. This attempt should be rewarded. We can hope that future projects would provide a recreational link to the trail system with additional amenities expressed by this project. An aspect I find most charming about cities is discovering the unexpected. Strong arguments have been made about the inappropriateness of a plaza and art project outside the realm of a central gathering place. The trail system will provide the of it will grow exponentially once The pump station will be here for the finest architectural pieces criticism. people activity because the use the last few links is completed. a minimum of 50 years. Some of have gained both praise and If there was a definable context, the issues would be different, but because there is extensive opportunity to do just about anything, and the "anything" which is proposed at this location is nothing more than a pump station, the applicant should be praised for conceiving much more than a utilitarian box. • CITY OF TUKWILA DEPARTMENT OF COMMUNITY DEVELOPMENT Planner: Cross - Reference Files: 1. BOARD OF ARCHITECTURAL REVIEW DESICC REVIEW APPLICATION FOR STAFF USE ONLY ;Receipt Witm ;;; . � BRIEFLY DESCRIBE YOUR PROPOSAL: �wAa�l; STA (Replacement Facility) 6300 Southcenter Boulevard, Tukwila, V.'A 98188 Telephone: (206) 431 -3680 ION 2. PROJECT LOCATION: (Give street address or, if vacant, indicate lot(s), block, and sub- division; or tax lot number, access street, and nearest intersection) Interurban Ave. at Tukwila Shops (Volvo - White) Quarter: Section: Township: Range: (This information may be found on your tax statement) 3. APPLICANT:* Name: Address: Phone: Signature: Date: * The applicant is the person whom the staff will contact regarding the application, and to whom all notices and rept ..a shall be sent, unless otherwise stipulated by applicant. AFFIDAVIT OF OWNERSHIP 4. PROPERTY Name: OWNER Address: Phone: I /WE,[signature(s)1 swear that I /we are the owner(s) or contract purchaser(s) of the property involved in this application and that the foregoing statements and answers contained in this application are true and correct to the best of my /our knowledge and . belief. Date: LiUAKU Ut Atil:rH I c.L; 1 Ut tttVltVV DESIGN REVIEW APPLI TION • CRITERIA The following criteria will be used by the BAR in its decision - aki bri r li ed oject. Please carefully review the criteria, respond to each criterion (• appropriate), and de'scrib how your plans and elevations meet the criteria. If the space pro ded fiurs spgn$032 insufficient, attach additional response to this form. of cherry trees enhance the street front. bse Page 2 1. RELATIONSHIP OF STRUCTURE TO SITE A. The site should be planned to accomplish a desirable transition with the streetscape and to provide for adequate landscaping, and pedestrian movement. 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 it site. RESPONSE: A. The building is located adjacent and parallel to Interurban Ave. to permit pedestrian and bicycle access. Street trees and grove B. Service areas are located behind the building and screen walls which extend in both directions parallel to the street. The sides and the back of the site are bermed and planted. C. The building maintains a one -story apparent height as much of the structure is buried or is below the public plaza. 2. RELATIONSHIP OF STRUCTURE AND SITE TO ADJOINING AREA A. Harmony in texture, lines, and masses is encouraged. B. Appropriate landscape transition to adjoining properties should be provided. C. Public buildings and structures should be consistent with the established neighborhood character. D. Compatibility of vehicular pedestrian circulation patterns and loading facilities in terms of safety, efficiency and convenience should be encouraged. E. Compatibility of on -site vehicular circulation with street circulation should be encouraged. RESPONSE: A. The only nearby building is the Tukwila Shops building which has little design significance. This building is smaller. B. The perimeter of the site is landscaped. Special consideration is given to transition to the golf course. • C. There is no established neighborhood character, however, the newer office buildings are mostly of painted concrete and glass. D. The future sidewalk and bike trail have been integrated with the site, public plaza and art project. Service and operation areas are located away from public areas. E. On -site vehicle circulation is by operators only and is intermittent. BOARD OF ARCHIThCTURAL REVIEW DESIGN REVIEW APPLIC TION ( Page 3 • 3. LANDSCAPE AND SITE TREATMENT A. Where existing topographic patterns contribute to beauty and utility of a development, they should be recognized and 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 encour- aged. . F. Screening of service yards, and other places which tend to be unsightly, should be accom- plished by use of walls, fencing, planting or combinations of these. Screening should be effective in winter and summer. G. In areas where general planting will not prosper, other materials such as fences, walls, and pavings of wood, brick, stone, or gravel may be used. H. Exterior lighting, when used, should enhance the building design and the adjoining land- scape. 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. RESPONSE: A. Site grading will include berrr.s to blend with the golf course system of berms. B. Gently sloping lawns, ramps and stairs are designed for safe access and a variety of seating options. C. Groves of flowering cherry trees are aligned on the building and and plaza grid system. Tree colors and flower colors will accent the building and paving colors. D. Branches of trees, in pedestrian corridors should be pruned to a height-of 7'. A 14' clearance should be provided at vehicle access points. Reinforced lawn will accommodate vehicle .loads in the turn around area. E. Trees are integrated into t1ie plaza by the grid system layout. F. Building related screen /walls are used primarily, as are shrubs. H. Site lighting will augment building lighting and will be used at points of entry to stairs and ramps. 4. BUILDING DESIGN A. Architectural style is not restricted, evaluation of a project should be based on quality of its design and relationship to surroundings. B. Buildings should be to appropriate scale and be in harmony with permanent neighboring de- velopments. litJAK J ur HKl:H1 1 C, I UhiAL KtVt W DESIGN REVIEW APPLIc( TION Page4 -C. Building components - such as windows, doors, eaves, and parapets - should have good pro- portions and relationship to one another. Building components and ancillary parts shall be consistent with anticipated life of the 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 buildings should be screened from view. F. Exterior lighting should be part of the architectural concept. Fixtures, standards and all ex- posed accessories should be harmonious with building design. G. Monotony of design in single or multiple buildings projects should be avoided. Variety of detail, form, and siting should be used to provide visual interest. RESPONSE: A. Careful attention to materials and details define this building as one element in a future continuous streetscape. B. One -story building height is equal or less than neighboring buildings. C. The street front elevation is highly articulated and proportioned to encourage public access. Fenestration is maximized on this side with variations of glass block patterns. D. The street front and public areas will consist of red brick, precast concrete, glass block and white accents. The operations side will be brick and painted concrete. E. A parapet shields the roof and screen walls hide the operations areas and equipment from the street. F. Night time lighting is achieved by back - lighting the glass block on the building and with the glass block light fixtures of the See C. screen wall. 5. MISCELLANEOUS STRUCTURES AND STREET FURNITURE A. Miscellaneous structures and street furniture should be designed to be part of the architec- tural concept of design and landscape. Materials should be compatible with buildings, scale should be appropriate, colors should be in harmony with buildings and surroundings, and proportions should be to scale. B. Lighting in connection with miscellaneous structures and street furniture should meet the guidelines applicable to site, landscape and buildings. RESPONSE: Precast concrete benches are incorporated into plaza grid pattern. Additional seating will be part of the Art Protect. Site lighting is incorporated into the glass block elements of the building and screen wall. A drinking fountain will be one of the art objects. +1`JHMU v +' N111/40111 I L . . 1 UriML rit V t& VV DESIGN REVIEW APPLICf ION INTERURBAN SPECIAL REVIEW DISTRICT Page 5 The following six criteria are used in the special review of the Interurban area in order to manage the development of this area, to upgrade its general appearance, to provide incentives for compatible uses, to recognize and to capitalize on the benefits to the area of the amenities including the Green River and nearby recreational facilities, to encourage development of more people - oriented use, and to provide for development incentives that will help to spur growth. Please describe how your proposed development relates to the goals for this District. Use additional response space, if necessary. 1. The proposed development design should be sensitive to the natural amenities of the area. The .landscaping of the site reflects and extends the golf course landscaping to the north. Other landscaping shapes and defines the site and public areas. No immediate landscape features currently exist 2. The proposed development use should demonstrate due regard for the use and enjoyment of public recreational areas and facilities. This protect incorporates the future bike trail and sidewalk by Pnnnuraging site access and use. This building provides a rest stop and point of interest along Interurban Avenue. 3. The proposed development should provide for safe and convenient on -site pedestrian circu- lation. Both stairs and ramps provide access to the plaza level and Art Project location. Proximity to the street and night' lighting give convenient access and safety. Also, see No. 2. 4. The proposed property use should be compatible with neighboring uses and complementary to the district in which it is located. The design for this building deemphasizes the operational aspects of this structure and conversely emphasizes public use and interaction along the street front. 5. The proposed development should seek to minimize significant adverse environmental im- pacts. The site plan separates and screens the operation areas from the public areas and street front. The perimeter of the site provides hnffPr fn aajacPnt properties. Also, see No. 4. 6. The proposed development should demonstrate due regard for significant historical features in the area. Historic relationships are to be incorporated into the Art Project in the public plaza area. Specific objects, text and materials for these comissions will be determined at a later time. 00019 -080 -002 -15 February 14, 1992 HDR Engineering, Inc. Ms. Denni Shefrin Associate Planner Department of Community Development City of Tukwila 63010 Southcenter Blvd. Tukwila, WA 98188 I. PLAZA EMI/ [FEB181992 CITY OF "I 'JKWILA PLANNING DEPT. NINETEEN SEVENTEEN NINETEEN NINETY TWO 75th C4Inniversary Re: Interurban Pumping Station Response to Comments /Recommendations on Design Dear Denni: Below is an itemized list of our responses to the comments and recommendations you gave to us on January 27, 1992. ■ Pattern interest will be created by altering brick and concrete in paving. • Having only a brick border does not adequately define and structure the plaza, building and art project. ■ The grid was set up to define the public areas and the art project. This does not conflict with the art project as the artist considers this geometry as integral to her thinking. The grid will not define how the plaza will be used. The shape of the public area and the objects, etc. within it will do this. • The landscaping shapes the plaza and its uses, and several street trees have been removed from the site plan to better allow visibility of the plaza area from Interurban Avenue. • The ramps need to be of specific length and of minimum slope as defined by the building code. Our plan just meets state requirements as drawn. We can angle the ends if this is desirable. Suite 200 Telephone Lincoln Plaza 206 453 -1523 11225 S.E. Sixth Street, Building C Bellevue, Washington 98004 -6441 Ms. Denni Shefrin City of Tukwila February 14, 1992 Page 2 ■ The site plan already funnels the eye toward the plaza. ■ In keeping with the concept of a minimum of maintenance of the landscaping, it is preferable not to use planter boxes. • Street trees have been removed. • Carrying the brick to the street makes for a better relationship of the plaza, art project and building to the street. By deleting this, the concerns for visibility, etc. to the plaza.from the street would appear unsubstantiated. II. ART SPACE ■ The art pieces have not been specifically designed yet, and may not be until the pump station is under construction. The building and plaza need to come first and then the art will follow. ■ The shape and lines of the public areas are integrated into the art project. • The objects within the art project will provide seating, and other seating areas will be added to the site plan. ■ The grid's purpose is to structure the building, site and art. Whether a grid is imaginative or not is not important. What is important, is how all of the parts are related. III. ART TO SET STAGE FOR BUILDING ■ The site plan is contemporary. • The artist has had great input into the site plan and she sees that there is no conflict between the rectilinear pattern and the art. • All major components, the art, the site and the building are integrated and are of equal importance. ■ We do not have a false front on the building. The side that faces the street is articulated differently to reflect the unique nature of the public areas and art project which are different from the operations area. • How the art fits into the geometry of the plaza is the artist's concern and responsibility. Ms. Denni Shefrin City of Tukwila February 14, 1992 Page 3 IV. FACADE The elevations have been simplified. Everything shown to date has been "modern ". • No changes have been made to the window patterns. • The glass block needs some structure to reinforce the large panel areas. The plaza and building areas are of human scale. • The building and walls shape the plaza and art project. Sincerely, • The art is anchored by its relationship to the plaza and the backdrop of the building behind. • The brick elements have been added to the sides and the back of the pumping station which effectively carries the streetfront design to the other sides. • The wing walls are necessary to define the public areas from the operations area. The approved budget for the art project does not extend to the walls. • The wing walls are appropriately scaled and modulated to the building and plaza. • As far as working with scale, space and shapes - its elementary. We already have and will continue to do so. HDR ENGINEERING, INC. Donn Hogan Architect DH /sdh cc: Jim Blazier Claudia Fitch Randy Robinson Sheldon Teel METRO PUMP STATION Comments /Recommendations on Design r$z,D� 1-1-re" �Z - 7-43 I. Plaza offer pattern interest in hardscape area maintain brick as border only plaza function size dictates how people behave; border defines space plaza as it . should function is too broken up by grid. Interferes with functionality and may in conflict with art project. Be - Does landscape in plaza function to offer a vista towards the building? leads through space lends to people gathering better defines art space. rather than portray incongruence - look at location of ramp - center it or angle it towards building center; move in closer - create sense of arrival. Draw eye towards art; direct pedestrian flow; look at spaces which could funnel eye to center via landscaping; trees at edges to funnel eye - triangle areas (see example) could provide seating; consider raised brick; incorporate planter box - consider omitting trees along front - reconsider carrying brick to street II. Art Space look at lines of art pieces. Let them serve as a design guide for the plaza and building. - carry pattern of lines into how the art space is defined by hardscape - provide seating opportunities so that plaza provides opportunities for conversation; - will effect pattern of landscaping. Classical vs. contemporary. Art is contemporary. - space ought to be creative; grid not imaginative; III. Art to set stage for building design. - should produce a contemporary site plan - art deviates too much from rectilinear pattern Parameter: art piece...site treatment...building design - false front as artistic statement not appropriate art should fit. on horizontal and vertical planes IV. Facade - simplify - modernize off -set windows as idea rounded forms all glass block - avoids violation of human scale - treatments on building which can effectively force a plaza and its function incorporate elements which anchor art project - building ought to establish context to set off art - carry design to all sides how can wing wall become artistic statement or is wing wall necessary? don't dilute building with busy wing wall work with scale, space, shapes To: -Rick-' Beeler- Don Williams From: John McFarland City of Tukwila 6200 Southcenter Boulevard • Tukwila, Washington 98188 John W. Rants, Mayor Re: Metro Pump Stat3lon Project Date: January 20, 1992 In light of the dual spheres of interest associated with the Metro pump station project, I would like you to arrange a preliminary meeting with representatives from the Planning and Arts Commissions. The purpose of the meeting would be to introduce the project, clarify responsibilities and jurisdictions between the commissions and intercept any misunderstandings related to the project in general. This is a somewhat unusual circumstance in that the building and art work are so closely related. Please let me know if you have any questions. I understand that the project may be delayed or even significantly revised due to the possibility of the re- routing of sewage from the Norfolk pump station. We may want to wait until that issue is resolved before proceeding with the coordinating meeting with the commissions. cf: Mayor Rants Phone: (206) 433 -1800. • City Hall Fax (206) 433 - 1833 January 16, "1992 Councilmember Jim Street Chairperson - Metro Arts Committee 821 Second Ave., MS-130 Seattle, WA 98104 -598 Subject: Project Art for the Interurban Metro Pumping Station Dear Councilmember Street: cc: Mayor John W. Rants Allan Ekberg Don Williams Lynn Devoir Jack Pace Carol " V Claudia Fitch City of Tukwila 6200 Southcenter Boulevard • Tukwila, Washington 98188 The Metro Arts Program Coordinator Carol Valenta brought a group of personnel involved in the subject Metro project to make presentations at the monthly meeting of the Tukwila Arts Commission, which was held on Tuesday, January 7th. Project artist Claudia Fitch and her associate Judith Roche described the current refined form of the art elements. They have obviously researched the history of the locale with thoroughness and with sensitive care for the history and feeling of place. Both the total concept and the artistic details are well indicative of this. The Tukwila Arts Commission herewith expresses its enthusiasm for, and endorsement of, the art concept as it has been presented. We look forward expectantly to the time of construction and installation of the art project and feel it will be an outstanding addition to the appearance of Interurban Avenue. Sincerely, J �Gf/V �-G� .JGr •Yt- d- -- f V 0- Nancy Lamb Chairperson - Tukwila Arts Commission Phone: (206) 433 - 1800 • City Hall Fax (206) 433 - 1833 John W. Rants, Mayor MBE Wilqi JAN 2 1 1992 CITY OF` TUKWILA PLANNING DEPT. 2 Jan. 92 Don: Thank you! Denni Shefrin Detailing is critical even at the "conceptual" stage when a project goes to the decision - maker. The direction I have received is that these details must be provided in order for staff to make a favorable recommendation. Providing details now will enable a more expeditious review process when structural drawings are submitted. What is being sought is more detailed information on the design of specific elements of the building and screen wall, and demonstration of the human scale relationship. For example, will the glass block on the pedestals be recessed back from the concrete base? Will the base extend beyond the brick? Can you provide a typical cross - sectional drawing? The same typical detailing would be helpful for the front and rear facades in order to show the depth and recess of the metal cladding and concrete. Can you provide a section of the front facade depicting the differing planes? Augment the drawings by placing people on foot and on bike, against the front windows, along the ramp, etc.. It's critical to give the Board a strong sense of how the entire structure relates in mass to its visitors. What impacts will the vertical and horizontal elements have on the desired environment being created? The drawing I have marked up will hopefully communicate the modifications we discussed earlier. Please call if you have questions. I would appreciate if you could fax (431 -3665) me rough cross sections of the detailing as soon as possible. 6.64 t7 \y- ss. (,v) Dti? METRO INTERURBAN SEWER INPROVEMENT PROJECT ISSUES: 1. Must submit Shoreline Permit Application 2. Complete submittal shall include: site plan (boundaries of construction), landscape plan with plant . legend, description of irrigation system, lighting plan, building elevations, art project (can this be conceptual ?); rendering, model, color and materials board. 3. Discuss /resolve role of Arts Commission and BAR regarding art project. Art project integral with building and building design /materials selected. Arts Commission meets first Tues. of each month (next mtg. 11/19) First concept rejected by Commission. Lynn Devoir will contact arts coordinator to see whether more proposals have been designed and will be ready to present to commission. Lynn indicated that Arts Commission may be willing to make recommendation to BAR. City is not paying for project. 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And Aslec.c1.d Firms c 4 l., .IORIt1 4MrM WWI 1i.000.00 I 03041.7 002200 gawk MI.01 O[p© :;:METRO �.• .1-,r 03.11.1 Kt 0,0100 PRELIMINARY MnaSclp.41J 01 Mruep.ptan 50.1130 INTERURBAN PUMP STATION EXTERIOR ELEVATIONS ♦ N IAlt 11Di0 A301 mm�'o a p JAN 02 '32 12:03 HDt ENU I VEER I Nl A No •I CONCRETE SIDEWALK gi e r — POURED If: PLACE CONCRETE WALL • X B CLASS BLOCKS 4X5 STEL TUNE POURED IN PLACE CONCRETE WALL (BEYOND) BLOCKS LASS FACE BRK74 (BEYOND) 4X1 STEEL TUBE CONCRETE COLUMN (BEYOND) • X e GLASS Bl MSS PACE BRICK (BEYOND) POURLO IN PLACE CONCRETE WALL • OAR SURFAT E APPLIED -- ROOFIN 141010 ROo- INSULATION CONCRETE ROOF DECK CONCRETE BEAM (BEYOND) BRICK PAWNS MDR Engineering, Inc. Po C ► r WAU. %CnUN %QALI: ]/4' ■ 1. -0• 011 • • a• RQZ POURED IN PLAtt CONCRETE WAU. FACE BRICK POURED IN PLACE CONCRETE WAU. FACE BRICK 0 POUREO N4 PMCC CONCRETt WALL FACE BRICK POURED IN PUCE CONCRETE WALL .J RN 02 '52 12:04 NOR EN5INEERIN3 • E T • n _.. 'ACE APPLIED i 1 eiNG 3 NCO! 1L ATlO1 METE ROOF OND) BEAM r I I tti�C• : :1�:• :ti• :vim.:. 14 iv iV a 4 • WALL SECTION SCALE: 3 /4 - i' —D• METAL PANEL METAL TRIM POURED IN PLACE CONCRETE WALL METAL PANEL t/1• FOAM.eOARD ERAIIIING ON 12 I METAL 'ORIN0 1 1/$• RIGID INSULATION METAL TRIM METAL PANEL METAL TRIM METAL PANEL METAL CAF rLACHWC METAL TR11A — ROOFING RIGID ROOT INSULA110:: \ --- . ---CONCRETE ROOF I DECK •-- CONCRETE SEAN letYOHD+, 'g•POURED IN PLACE CONCRETE FLOOR OECK POURED IN PLACE CONCRETE WALL [MOM RRR WALL SEC11ON SCALE: 3/4• - 1' -0• MISTAO META TRuJ Poorinc 1 •• -- POURED iN *LACE CONCRETE W•L. METAL PANE; • . .a —� :::•fit: METAL PANE: METAL TRIM 1 n• FOAM 'OARS, SHEATHING ON 1 1/2' METAL FURRING CHANNELS 1 1/2 RIGID INSULATION HOLLOW META: DOOR FRAME --HOLLOW METAL DOOR THRESHOLD 4 POURED IN PLACE CONCRETE WAIL. PRELIMINARY I I olloPl a . ww.e.Tllla IOW& 3/4 T ,� O . I INTERURBAN PROJECT • II. Mk INTERURBAN PUMPING STATION w4m o+ WAI I SFf:TIf1N MCTAL CAP rLAOMNQ RIGID ROOF IN$UL ATID\ "- 4--- CONCRCTt RDOF DCCk +---•--- CONCRETE etAY (ICYCINO) `- -POUMO IN PLACE CONCRETE FLOOR DECY. 'wA JRN 02 '32 121U n MDR EN5INEERIN5 PO4 -A CONCRIEIE OIDEWAIX Mr& CAP CONC. CAP K 1 CIAO DOCKS 1 IN PLACE COWPER WALL PACE MOCK PACE WIOCK CONCKLIE IN*WAIX December 18, 1991 CITY OF TUKWILA 6200 SOUTIICENTER BOULEVARD, TUKWILA, WASHINGTON 98188 Mr. Marc Dallas METRO 821 Second Ave., M.S. 112 Seattle, WA 98104 -1598 Re: Interurban Pump Station, 91 -8 -DR PHONE q (206) 433.1800 Cary L. Va Duseu, Mayor Dear Marc: Per out discussion earlier this week, this letter serves as confirmation that a Conditional Use Permit (CUP) in addition to Design Review, is required for the proposed pump station in accordance with Section 18.64.020 (12) of the Tukwila Zoning Code. Because the gravity sewer line and forcemain will be processed under separate permits, a CUP will also be required at that time. A CUP requires Planning Commission approval. Both the CUP and Design Review can be heard by the Planning Commission /Board of Architectural Review concurrently. In order to proceed in a timely manner, the enclosed CUP application should be submitted as soon as possible. Information not provided with the Design Review application should be included with the CUP submittal in addition to the fee. Because a SEPA review was not conducted by the City for the pump station, the fee paid by METRO can be credited toward the CUP fee ($850) resulting in a balance of $625.00. Donn Hogan of HDR Engineering, will be providing revised architectural drawings by Friday, December 21. The following must also be provided in addition to the CUP application by December 28: 1) two sets of mailing labels for property owners within a 300 - foot radius of the subject property; 2) Revised PMT's. Feel free to contact me if you have further questions. Sincerely,.. Encl: CUP Application CC: Jack Pace Sheldon Teel Donn Hogan. Denni Shefrin, Associate Planner mETR:: Municipality of Metropolitan Seattle Exchange Building • 821 Second Ave. • Seattle, WA 98104 - 1598 December 12, 1991 Mr. Jack Pace Senior Planner City of Tukwila 6300 Southcenter Boulevard Tukwila, WA 98188 Metro Interurban Project Meetings Summary Dear Mr. Pace: Gdr011W1 DEC 16 1991 D CITY OF i UKvvILA PLANNING DEPT. Thank you for your time and attention and the time and attention of additional City of Tukwila staff during the recent meetings held during the months of November and December. I am providing this letter for your review as a summary of our discussions. These meetings took place on November 22, December 2, and December 6. The purpose of the meetings was to discuss and clarify art, architectural and landscaping aspects of the Interurban Project pump station design. Following is a sum- mary of those meetings. November 22, 1991 Meeting This meeting covered a number of topics. Tukwila staff had a number of concerns that they wanted to see incorporated into the design. Those concerns were: - A strong desire to see the history of the area incorpo- rated into the design. - A desire to see the design concept carried through on all four elevations as opposed to the present street side versus non - street side concept. - A desire to see photos, plaques, and signs with history of the area installed on auto side of the building. - Concern that street -side of the building is too bulky. - They want to have the back of the building screened from the golf course. In addition to the above design concerns there was also open discussion between the staffs of Metro and Tukwila on a num- ber of issues pertaining to the design such as: An explanation of the Metro Art Program and the pro- posed art project. - Discussion of various mechanical considerations. Discussion as to the origins of the building's config- uration, height, orientation, etc. - Discussion of landscaping concerns, , ir- rigation schemes. X E The outcome of this meeting was that Metro's consultant would work with the recommendations of City staff and de- velop some alternative designs. Those alternative designs would then be submitted to Tukwila for review and comment. Additionally, Tukwila staff determined that the art project will be reviewed separately from the pump station as long' as it does not need a building permit. December 2. 1991 Meetinct This meeting took place after Tukwila staff had an opportu- nity to review the revised pump station design. The discus- sion was confined to fewer topics than in previous meetings. The comments and discussion topics were as follows: - Tukwila staff is looking for a continuity on all four sides of the building, not necessarily that they are identical. - Discussion on pros and cons of metal cladding versus concrete. - Discussion of screen wall height and configuration, stepped versus static height. Discussion of architectural treatment of facade, arches, materials, window shape, etc. Discussion of color for metal, green versus white, which shade of green. Through discussion Metro and Tukwila staff were able to reach a consensus regarding the pump station design. We agreed that green metal cladding would be used on the exte- rior "non- front" side of the building. Additionally the screen wall would be stepped rather than remain at a static height. Soft, arched "eyebrows" would also be incorporated into the design. December 6, 1991 Meeting The goal of this meeting was to finalize comments from the Tukwila staff so that Metro can finalize its submittal to the Board of Architectural Review. During this meeting there was much debate and discussion but it was limited to relatively few topics, which were: - Color, dark versus light 'green. Landscape, species color for contrast with building, trees as a unifying factor, landscape to screen versus hide, maintenance issues with regards to design. A discussion of the "cap" portion of the building, pos- sibly elaborating on it or highlighting it to "finish" the building, and /or modifying roof detail, texturizing concrete of top module. - . The art project, the area size, configuration and amenities. The final outcome of all this discussion was that the final submittal for the Board of Architectural Review must be sub- mitted no later than December 20, 1991. The final design will incorporate a medium green paint for metal items. Landscape materials will act as a unifying and screening . factor, species will be selected in part to contrast with the green paint color. The landscape architect will meet with Don Williams of Tukwila city staff to discuss issues of maintenance and drought tolerance and incorporate that in- formation into the final design. The architect will con- tinue refining the facade design, incorporating Tukwila feedback. Once again I would like to thank you and all of your staff for your time, attention and input into this project. You have helped us to create a project that is an asset to the community and that we can all be pleased with. Should you have any questions or comments regarding this meeting summary, please do not hesitate to contact me at 684 -2224. Very truly y Jac • ' -lyn Roswell Engineer III cc: Bill Allen - Metro Jim Blazier - HDR Pat Broden - City of Tukwila Don Williams - City,of Tukwila ` Denni Shefrin ' - ' City of ' Tukwila' Sheldon Teel - Metro Mark Dallas - Metro Ken Madden - Metro Carol Valenta - Metro DEC- 09 -'91 MON 17:07 ID:MEC - 12TH FLR TEL NO:(206) 684 -1900 #227 P02 DATE: • DEC 03 78 14138 HDR Ef t I N NUMBER OP PAGES; MESSAGE TO Addr-rou.agge.C. FIRM: / CITY: FROM NAME: FIRM: MESSAGE rh e. r eri+wde•at d'p'eige vest 4,41 4100h A Vd P-44,-46ew "my dod oe de- 1 NAME; P0/4,0 crilsv rimor) Th sic $ e lot Trrer /( Fir'ei er ,v, #/c40 en r al? 4207 /We. `itej Opetiv-4, r a f A4 ak /e ,4i'e 9- c op, / 3 9M ' We W( rer drtre, `fort. e'T `tr' ?x�7� - 7�.0►•r�e' �r - 4r70..1 More 744 40S ►.t /i > . ,41.0'0 Atoe dr- srir Noistdriet:f 74e- "Pfia. 7L- le. AO/ o- tei te,4. w Aft) q !a1 cra i e. rote . ''‘K °t ieve. c't. /Pi o rttrosr�M it itr�l.�M e.k' _ r4 fir r" �'�+ fie! COPIES TO DISTRIBUTION (ATTACHE e' r r/e a4e a * v cor 74 04 Aoto lder4 *76► 2 ostode mows '7 Mt ' Z e ty .i` 91- METRO INTERURBAN PROJECT FAX SHEET (iuctudiha this psse) TELECOPY NUMBER CALLED: T'ELEPIIONE: r, astr3 703 NUMBER: 3 "AO c u. - , 23;400 cu. .d. cde.,r•• . 44 d1e' cct�t►r F' 01 61'4 —1704 1NT1ETRO t. Municipality of Metropolitan Seattle Exchange Building • 821 Second Ave. • Seattle, WA 98104 -1598 November 19, 1991 Mr. Jack Pace Senior Planner City of Tukwila 6300 Southcenter Boulevard Tukwila, WA 98188 Dear Mr. Pace: Thank you for your time and the time and attention of additional City of Tukwila staff in the November 13, 1991 meeting to discuss the Metro Interurban Project. I am providing this letter for your review as a summary of our discussion. Metro's primary reason for requesting this meeting was an opportunity to explain the art and architectural treatment of the pump station to the planning department in greater detail. Metro also wished to discuss the shorelines permit issues briefly. Metro staff identified two areas where direction from City of Tukwila staff was needed: Consensus on the design approach to date Direction on drawings that are needed for the Board of Architectural Review meeting. Metro began the meeting with a presentation by the architect, artist and landscape architect. The designer's presentation was highlighted by the use of colored drawings and a 3 -D model. Each designer explained their design goal and constraints that they were working within. A discussion period followed. The discussion covered many topics that can be broken down into three categories: 1.) Review and explanation of design 2.) The review process - what Tukwila does and when 3.) What Metro needs to do for the review process What follows is a brief synopsis of the issues discussed in each category. The first category covered issues sch as materials, noise and odor control, and design concept. Metro explained that materials would be brick, concrete, and glass block with the possibility of metal cladding on three sides. Landscape materials include white flowering cherry trees and dark green, dense evergreens. Metro has addressed the issues of noise and odor control by installing an odor control system and enclosing mechanical units inside to muffle the sound. The design strives to highlight the public face of the building and de- emphasize the operational side of the building. The art project is designed to coincide with the architectural treatment of the building. During the discussion period Metro clarified the art project limitations and how it functions within the overall project. The art project is a separate entity from the Interurban Project with funding coming from the Metro Arts Committee. However it is designed to augment and complement the overall project. The Metro Arts Committee works in two steps, first it funds the development of a concept, then it funds the development of that concept into a work of art. Presently the Interurban Project is in the first step. A final proposal will be put to the Metro Arts Committee in December, funding the creation of an art work. The second category deals with the process the City of Tukwila uses to review projects in their jurisdiction. Tukwila staff decided after listening to Metro's presentation that the scope and complexity of this project may require that Tukwila modify their procedures slightly to allow for a simultaneous review of both the art and architectural aspects of this project. The staff agreed to review the pipeline and pump station separately for the shoreline permit process. The question of when this project can go before the Board of Architectural Review was also addressed. Currently, Metro is scheduled to be the first item on the agenda for the January meeting. Due to internal scheduling Metro would prefer to be included in the agenda for the December meeting. Tukwila staff will review the situation and possibly schedule the Interurban Project on the agenda of the December meeting. Tukwila staff will contact Don Hogan of HDR, Inc. on Friday November 15, 1991 to inform Metro of their decision on the following issues: - a determination on whether the project will be reviewed at the December or January meeting of the Board of Architectural Review. will relay their comments on the design so far - Tukwila will coordinate the review of architecture and the art project and let Metro know how they want to handle that process. The final issues dealt with the time frame and materials that Metro will have to provide for Tukwila's review of this project. Basically the City will need final drawings in their finalized form prior to Thanksgiving if Metro will be on the December agenda. Tukwila staff suggested that a photo of the site with a perspective of the building superimposed on it would be very helpful. The review board would also like to see samples and material boards and indicated that models were helpful. Mechanical drawings are not necessary for the review, only those drawings that show art and /or architectural treatment issues are needed. Metro will also need to submit a flood zone plan for the shoreline permit. Should you have any questions or comments regarding this meeting summary, please do not hesitate to call me at 684- 224. Very tr y ;ors, ac • ly Roswell Sr. Construction Inspector cc: Bill Allen - Metro Jim Blazier - HDR Pat Broden - City of Tukwila Don Williams - City of Tukwila Denni Shefrin - City of Tukwila Sheldon Teel - Metro Mark Dallas - Metro Ken Madden - Metro hP WiiirS-711 411 111P/' A T/ awins Air,41111111/Milika, 41117411P ifiPlauy"=;).'4""w`r-='—' — A1P itINW/dr7i alliP iggiFY;1071tr1:7? 1l ►�' _te filIP Aar ~ �� � F . f 4UPf 11ii'/ $ AW.11 ■ CITY OF TUKWILA 6200 SOUTHCENTER BOULEVARD, TURWLA, WASHINGTON 98188 • NOV 08 1991 1 TO: Denni Shefrin Via Ron Cameron FROM: Phil Fraser DATE: November 8, 1991 M E M O R A N D U M r d d PLANNING DEPT. _ j PHOA ;433.1800 Cary L. VanDusen, Mayor SUBJECT: Interurban Avenue Service Area Sewer Improvements Design Review Public Works Department has reviewed the Interurban Avenue service area sewer improvements /wastewater pump station (Design Review File No. 91 -8 -DR and provides the following comments: 1. Public Works is in agreement with Don Williams with regards to final alignment which is Alternate A through Foster Golf Course and utilizing the existing bridge currently used for the ETS line by METRO. 2. Is not clear from the information provided how existing pump station no. 5 will be connected to this system. 3. Per page 3 of the environmental document, Grade and Fill Permit is now a "Land Altering" Permit (L.A.O. Ordinance attached) and shall meet the requirements of the Land Altering Ordinance. Also, for clarification, under "conditions of easements" street use permits may include sidewalk /curb /gutter and drainage extension permits. Missing from this list is Flood Zone Control Permit and permits from other agencies required as a result of crossing the floodway (i.e. Corps 404 Permit and Fisheries Hydraulic Permit). 4. Per the Flood Ordinance, the Flood Zone Control Permit shall be reviewed at the time of application for the Shorelines Permit. 5. Per discussion with Don Williams and attached Interurban Ave. pumping station site plan C301, easements will be required as a part of the development of the right -of -way necessary for the pumping plant, including: a) vacation of Maule Ave. (from S. 139th to S. 140th Street); b) easements from Volvo -White and Puget Power; c) from Recreation Department (Don Williams) easements across Foster Golf Course park properties, d) easements from Seattle City Light ?, e) easements from railroad, f) other private property easements as necessary to complete link to the Renton Treatment Plant. Attachments (3) PF /amc:8:denni xc: Don Williams Development File: METRO 6. A lease agreement /frontal improvements commitment on Interurban Ave. S. for land use and compensation will require frontal improvements on leased property plus from S. 139 1/2 up to 140th S. 7. Requested is a meeting with Ross Earnst to go over any additional input he may have with regards to past meetings or approvals by Public Works. It would be wise to include Don Williams in this meeting. 8. Attached is an October 31, 1991 letter from Don Williams to Mr. Shelton Teel expressing Don's concerns. CITY OF TUKWILA 6200 SOUTHCENTER BOULEVARD, TUKWILA. WASHINGTON 98188 October 31, 1991 Mr. Shelton Teel, Project Manager Municipality of Metropolitan Seattle Exchange Building 821 Second Avenue Seattle, WA 98104 -1598 PHONE # (206) 433.1800 Gary L. VanDnsrn, .Mayor Subject: METRO Easement at Foster Golf Course Dear Mr. Teel, Thank you for providing me with a copy of your summary of discussion letter of October 22, 1991. The purpose of this letter is to raise several points that may need clarification. My first concern involves the statement that Metro should complete the necessary forms for vacating Maul Avenue. In a discussion I had with Ross Earnst on October 24th, it was my understanding our Public Works Department will process this request using the information provided by HDR Concerning your comment about the City maintaining the landscaping and art area around the pump station, I can only say we will consider the maintenance responsibilities as part of the conditions stated in the easement. Only the City Council can grant the easement, thus they will have the final say whether or not the City will maintain these areas. It will be my recommendation to have City crews maintain the art work and landscaping. We will not maintain the driveway areas or building. My third concern involves your proposal for compensation. I need to point out that the compensation of the golf course proposal easement has to be paid directly to the golf course fund. The golf course operation is an "enterprise" fund, and as such, must be compensated directly. Work done to the maintenance shop land or to Interurban Avenue are separate issues, separate budgets. If you need further clarification in this matter, please give me a call. For your information, I have met with Steve Hagen from Seattle City concerning the easements for the City in front of the golf course. There are several that were never completed. I'll know more about these in a week or two. Sincerely, Don Williams, Director Parks and Recreation Dept. cc: Ross Earnst, Public Works Director John McFarland, City Administrator meteaslr 10/25/91 meteaslr 10/25/91 CITY OF TUKWILA 6200 SOUTHCENTER BOULEVARD, TUI; WILA. WASHINGTON 98188 October 31, 1991 Mr. Shelton Teel, Project Manager Municipality of Metropolitan Seattle Exchange Building 821 Second. Avenue Seattle, WA 98104 -1598 Subject: METRO Easement at Foster Golf Course Dear Mr. Teel, Thank you for providing me with a copy of your summary of discussion letter of October 22, 1991. The purpose of this letter is to raise several points that may need clarification. My first concern involves the statement that Metro should complete the necessary forms for vacating Maul Avenue. In a discussion I had with Ross Earnst on October 24th, it was my understanding our Public Works Department-wi rocess this request using the information provided by HDR. Concerning your comment about the City maintaining the landscaping and art area around the pump station, I can only say we will consider the maintenance responsibilities as part of the conditions stated in the easement. Only the City Council can grant the easement, thus they will have the final say whether or not the City will maintain these areas. It will be my recommendation to have City crews maintain the art work and landscaping. We will not maintain the driveway areas or building. My third concern involves your proposal for compensation. I need to point out that the compensation of the golf course 'backside" easement has to be paid directly to the golf course fund. The golf course operation is an "enterprise" fund, and as such, must be compensated directly. Work done to the maintenance shop land or to Interurban Avenue are separate issues, separate budgets. If you need further clarification in this matter, please give me a call. For your information, I have met with Steve Hagen from Seattle City concerning the easements for the City in front of the golf course. There are several that were never completed. I'il know more about these in a week or two. Sincerely, Don Williams, Director Parks and Recreation Dept. cc: Ross Earnst, Public Works Director John McFarland, City Administ, PHONE # L2061433.1800 Gary L. %anDusi•n, .Mayor -- ;�mETRO( ; '' Exchange Building • 821 Second Ave. • Seattle, WA 98104 - 1598 PROPONENT: Municipality of Metropolitan Seattle (METRO) LEAD AGENCY: MUNICIPALITY OF METROPOLITAN SEATTLE (METRO) LOCATION OF PROPOSAL, INCLUDING STREET ADDRESS, IF ANY: The project is located in King County, Washington, section 14, 15, 23, and 24, , Range 4 East, Township 23 North. This area encompasses part of the City of Tukwila from the 41st Avenue Bridge along Interurban Avenue South to Fort Dent Park and an adjacent portion of the City of Renton. The lead agency for this proposal has determined that it does not have a probable significant adverse impact on the environment. An environmental impact statement (EIS) is not required under WAC 43.21C.030(2)(c). This decision was made after review of a completed environmental checklist and other information on file with the lead agency. This information is available to the public on request. There is no comment period for this DNS. X This DNS is issued under 197 -11 -340 (2); the lead agency will not act on this proposal for 1Tdays from the date below. Comments must be submitted by September 5, 1991. - eNe-t fvoliaidio DETERMINATION OF NONSIGNIPICANCE (DNS) {( • 00199 INTERURBAN SERVICE AREA SEWER IMPROVEMENTS PROJECT DESCRIPTION: Metro proposes to make improvements to the existing sewage conveyance system which include constructing a new pumping station located off Interurban Avenue South at the south end of Foster Golf Links; constructing a new gravity sewer line to the new pumping station; and constructing a new forcemain from the new pumping station site to the Metro treatment plant at Renton. The new gravity sewer would be a 26 inch to 36 inch pipeline replacing the existing Tukwila Trunk Sewer from the Val Vue connection approximately 5,050 feet south parallel to Interurban Avenue South. The new forcemai uld be a 20 inch pipeline constructed along one of o alternative 1-16 routes to the Metro treatment plant at Renton. On/ yi. forcemain alternative travels east through Foster Golf Links down railroad right of way and through Fort Dent Park. The other forcemain route travels south along Interurban Avenue and through Fort Dent Park. DATE: August 19, 1991 RESPONSIBLE OFFICIAL: Gregory M. Bush POSITION /TITLE: Manager /Environmental Compliance and Right of Way Division TELEPHONE NUMBER: (206) 684 -1164 ADDRESS: 821 Second Avenue, Seattle, Washington 98104 SIGNATURE: -0 7 P4 ' You may appeal this Executive Director, Washington, 98104. factual objections. determination to Richard K. Sandaas, at Metro- 821 Second Avenue, Seattle, You should be prepared to make specific Contact Ellis McCoy at 684 -1731. ENVIRONMENTAL CHECKLIST INTERURBAN SEWER SYSTEM IMPROVEMENTS A. BACKGROUND 1. Name of the proposed project: Interurban Sewer System Improvements 2. Name of Applicant: Municipality of Metropolitan Seattle (Metro) 3. Address and telephone number of applicant and contact person: Municipality of hetropolitan Seattle (Metro) 821 Second Avenue MS 120 Seattle, WA 98104 Contact: Ellis McCoy (206) 684 -1731 4. Date checklist prepared: August 15, 1991 5. Agency requesting checklist: Municipality of Metropolitan Seattle (Metro) 6. Proposed timing or schedule (including phasing, if applicable): Construction will begin after the appropriate permits are obtained. Construction is expected to begin during the summer of 1992, and is expected to last approximately 18 months. 7. Plans for future additions, expansion, or further activity related to or connected with this proposal: There are no plans for future additions or expansion of facilities to be constructed as part of this project. Construction of Interurban Sewer System improvements may coincide with construction associated with the expansion of the Metro treatment plant at Renton. --- G2444 (c.449 (iaat ay &Ply) It/114- 1 ccli Natick , REce,; 3D60 i, `_. 1 OCT 091991 CU Y ILA ['f..1`.Nt` "sNc: DEPT. ' " 8. Environmental information that has been prepared, or will be prepared, directly related to this project: Environmental information related to this project will be included in the Interurban Sewer System Predesign Report -6 being prepared concurrently with this Environmental 5 Checklist by HDR Engineering, Inc. Additional environmental information relating to the project can be found in the following documents: - Environmental Analysis - Task 390, Alki Transfer - CSO Control Facilities Project (Municipality of Metropolitan Seattle, 1990), - Predesign Report for Alki Transfer - CSO Control Facilities Project (Municipality of Metropolitan Seattle, 1990), UC ' ' , Draft Supplemental Environmental Impact "Statement: Metro Treatment Plant at Renton - Phase III Enlargement (Municipality of Metropolitan Seattle, 1991), and - Facilities Plan for Alki Transfer - CSO Control Facilities Project (Municipality of Metropolitan Seattle, 1990), - Draft Environmental Impact Statement for Rabanco / Black River Waste Recovery Center (Rabanco Regional Landfill Company, 1991). 9. Applications that are pending for governmental approvals or other proposals directly affecting the property covered by the proposal: The City of Tukwila intends to improve sections of Interurban Avenue S. from near 42nd Avenue S. to 52nd Avenue S. This will include: bridge removal; widening and paving; installation of curbs, gutters, sidewalks, landscaping, light poles, signals; stormwater collection, treatment and discharge; and installation of a storm sewer trunkline. A Mitigated Determination of Non Significance (DNS) was issued July 20, 1991. L �� A small portion of one of the forcemain alternatives (See 11. below.) will cross the site of the proposed Rabanco / Black River Waste Recovery Center, just east of Foster Golf Links and the Burlington Northern / Union Pacific NI rail lines. The proponent is in the process of obtaining permits for the project from the City of Renton and other agencies with jurisdiction. 2 Both forcemain alternatives (A and B) will enter the west side of the Metro treatment plant at Renton off Monster Road S.W. where it will continue to a transition structure on the treatment plant site. Metro is in the process of obtaining permits for expansion of the treatment plant from the City of Renton and other agencies with jurisdiction. 10. List of governmental approvals or permits that will be needed for the proposal: The following approvals and permits are anticipated to be needed for the proposal: Federal Army Corps of Engineers Section 404 Permit Section 10 Permit State of Washington Department of Transportation Highway Crossing Permit Departments of Fisheries and Wildlife Hydraulic Project Approval Department of Natural Resources Easement for Construction Permanent Pipeline Easement Puget Sound Air Pollution Control Agency Notice of Construction and Application for Approval City of Tukwila Board of Architectural Review Excavation Permit Shoreline Substantial Development Permit Street Use Permit Utility Permit Building Permit Grade /Fill Permit (jp e6mITD Right of Way Construction Permit Necessary property rights for pump station and facilities Ci9 ROL 7 /\ 0,Q \ ' 3 Other City of Renton Shoreline Substantial Development Permit Right of Way Construction Permit Grading Permit King Count' Easement for Construction Grading Permit Seattle -King County Health Department On -Site Sewage Disposal System Permit Burlington Northern Railroad /Union Pacific Railroad Pipeline Crossing Permit Permanent Pipeline Easement Puget Western /City Light Easement for Construction Permanent Pipeline Easement 11. Brief, complete description of the proposal, including the proposed uses and the size of the project and site: The proposed Interurban Sewer System improvements include the following three elements: 1) Construction of a new Tukwila Trunk Sewer from near the Val Vue Connection to the new Interurban Pumping Station at the south end of Foster Golf Links; 2) Construction of a new Interurban Pumping Station near the south end of Foster Golf Links; and 3) Construction of a new forcemain from the proposed pumping station site to the Metro treatment plant at Renton. These improvements are shown in Figures 1 and 2. The entire project is expected to take 18 months to construct. The pumping station itself will take the full 18 months. Various segments of the Tukwila Trunk and forcemain will take shorter periods of time; construction of some elements may occur concurrently. 4 UUUNJL FOOTBRIDGE TUKWILA N 1000 2000 0 0 U E1\14`6\1 IkM[N"I" AN )( ) \V j �,;(" ` A) FIGURE 1 Proposed Tukwila Trunk and New Interurban Pumping Station VAL VUE CONNE EXIS FM ( EXIST OVERFLOW ► 000 SCA E N F EX SING URBAN PUM ING STATIQN # Ic PROPOS INTER R PUMPING STATI C'/ICT FIGURE 2 Proposed Interurban Pumping Station and Alternative Forcemain Alignments 5 Tukwila Trunk Sewer. The new Tukwila Trunk will begin at the existing manhole T -14 (5A), about 50 feet south of the Val Vue Connection near 42nd Avenue S. and Interurbana , Avenue S. From this point, the new trunk will continue f south under the existing drainage swale in the old Puget' Sound Electric Railway right -of -way (now owned by Seattle City Light). This right -of -way parallels Interurban Avenue S. and is continuous to near S. 140th Street. The new Tukwila Trunk will be installed adjacent to the existing Renton ETS pipeline which is located in the west side of this right -of -way. The first 1,650 feet of the new trunk will be a 24- inch diameter concrete pipe installed at a depth of between 15 and 22 feet below grade. At the southern entrance to Gateway Corporate Center, the diameter of the trunk will increase to 36 inches. The trunk will continue south for approximately 1,000 feet to the Interstate -5 (I -5) right - of -way. Construction of this section of the Tukwila Trunk (Val Vue Connection to I -5) is expected to take about 3 months. Installation of the trunk sewer will require a trench about 10 feet in width supported by sheetpiles. It is expected that continuous dewatering will be required. dtal/PS (fin GlidA . orh4 ' tf 1— 0 -1 4 o ,;qrn 020,' It is estimated that 20 to 50 feet of pipe can be installed each working day. As pipe sections are installed, sheetpiles will be pulled and the trench will be backfilled. About 100 feet of trench will be open at any given time. The construction area will be about 1,000 feet by 60 feet along the alignment and will be used for construction purposes (e.g. vehicles, equipment, materials storage, parking). The width of the corridor will narrow to 30 feet or less as it crosses local streets and access points for local businesses. The I -5 crossing will be accomplished by jacking or tunneling a 660 foot, 60 -inch diameter casing pipe under the existing structure and approach ramps. The 36 -inch concrete trunk line will be installed within the casing pipe. A jacking pit will be constructed south of I -5 near the entrance to Grantree Furniture. This pit will be about 20 feet wide by 50 feet long and 25 feet deep. Construction is expected to last 6 to 8 weeks. This section will also require dewatering. -- Avtt, code lc it JOB South of I -5, the 36 -inch trunk will continue in the City Light right -of -way for approximately 2,400 feet to the site of the new Interurban Pumping Station. Just south of I -5, the new trunk sewer will ' be ' within ' feet- of ' 6 1 PE2am the Duwamish River for a distance of approximately 500 feet. Construction methods will be similar to those described above. Construction of this section of the trunk is expected to last about 3 months. A new 12 -inch pipeline will be constructed across Interurban Avenue S. in order to collect flows now served by the existing pumping station. The existing station will be removed to about three feet .below grade, .backfilled and the site restored to a condition /\\I VG� compatible with adjacent multi - family uses (i.e. Y' landscaped parking areas). Demolition of the existing station is expected to take about one month and will occur once other elements of the new Interurban Sewer `� System become operational. � \-95)1 Interurban Pumping Station. The new Interurban Pumping Station will be constructed adjacent to Interurban Avenue S. near the south end of Foster Golf Links. This ldcation is just south of the golf course maintenance road about 1,000 feet south of the existing pump station. (The proximity of the existing pumping station to multi- family residences and the potential for odorous .emissions is, one of the reasons for relocating the pumping station.) The new pumping station will consist of an above grade structure approximately 28 X 44 feet, averaging 14 feet high (maximum height will be 16 feet). Below grade, the structure will be about 40 X 44 feet. The pumping station site will total approximately 13,000 square feet. The new pumping station will be designed to convey an ultimate peak flow of 10.0 mgd. Construction is expected to last about 18 months. Forcemain. There are two alternative routes for the 20- inch forcemain from the new Interurban Pumping Station to the Metro treatment plant at Renton. Forcemain Alternative A runs east from the new pumping station, parallel with the ETS line, through Foster Golf Links, crossing the Duwamish River using the golf course footbridge and then under the Burlington Northern / Union Pacific rail lines. The forcemain will then continue parallel to the Renton ETS line, southeast to the Black River. The forcemain will be jacked or tunneled under the Black River just east of the rail lines. At this point, the forcemain will again cross the rail lines to Fort Dent Park. It will be be trenched under the Black River railroad trestles on the south side of the channel. Once in Fort Dent Park, the forcemain will run southeast along the west side of the railroad ).0\ rev 9 I n 1.�. , embankment to.the southeast corner of the park, where it will be jacked under the rail lines. Once on the east side of the rail lines, the forcemain will again parallel the, ETS pipeline, following the railroad access road to Metro's treatment plant at Renton. The forcemain will cross Monster Road S.W. and enter the treatment plant near the main entrance gate. Total length of the forcemain will be about 7,800 feet. Forcemain Alternative B involves running the 20 -inch forcemain southeast from the new Interurban Pumping Station along Interurban Avenue S. for approximately 3,800 feet to a location across the river from the southwest end of Fort Dent Park. This section of the forcemain is to be installed in public right -of -way obtained by the. City of Tukwila. from adjacent property owners in trade for vacating Maule_ Avenue, a 20 -foot wide right -of -way which bisects the properties adjacent to Interurban Avenue S. The forcemain will cross the Duwamish (Green) River to Fort Dent Park via a new pipebridge or by tunneling under the river. Although design is not yet complete, it is likely that the bridge crossing will require footings on each bank. Construction will require use of some floating equipment although most of the work can be accomplished using shore -based equipment. The tunneling option will require staging areas and moderately deep tunneling pits on each side of the river. After crossing the Duwamish River, the forcemain route will run in an easterly direction for about 1,750 feet, crossing multi- purpose sports fields, parking areas and the principal park access road. It will be jacked under the Burlington Northern / Union Pacific rail lines at the southeast corner of the park near the soccer field. From this point, the forcemain will follow the ETS right -of -way along the railroad access road, crossing Monster Road S.W. into the treatment plant near the main access gate. Total length of_forcemain alignment B will be similar to alignment A, about 7,800 feet. For both A and B alternatives, the 20 -inch forcemain will be ductile iron, steel or concrete cylinder pipe, installed in an open cut trench about 6 feet deep and 15 to 20 feet wide. It is unlikely that shoring of the trench will be necessary. Because of the shallow depth of the trench, dewatering is not anticipated. It is Cd �� to ( O U1 / dim+ a &14,1? 12. Location of the proposal, any, and section, township, site plan; vicinity map; reasonably available: B. ENVIRONMENTAL ELEMENTS 1. Earth 8 estimated that between 100 and 300 feet of pipe can be installed each working day. Construction is expected to last about 4 months. Jacking pits will be required for railroad crossings on each side of the railroad embankments. Because of the shallow forcemain depth and the elevated railroad embankment, these pits are expected to be shallow and will not require substantial excavation. Jacking pits for the Black River crossing ( Forcemain Alternative A) will be somewhat deeper because of the low elevation of the channel. For both forcemain alternatives, a below grade chlorine injection facility will be installed adjacent to the treatment plant entrance road in order to control odorous gases. Following chlorine injection, the forcemain will discharge into a new transition structure which will strip hydrogen sulfide from the wastewater flow. All but a small portion of the transition structure will be below grade. A new 30 -inch diameter gravity line will convey the flow from the transition structure to the plant's influent control structure. including street address, if and range; legal description; and topographical map, if The project is located in King County, Washington, sections 14, 15, 23, and 24, Range 4 East, Township 23 North. Figures 1 and 2 show the location of the Tukwila Trunk, the new Interurban Pumping Station and the two alternative forcemain routes (A and B) to the Metro treatment plant at Renton. a. General description of the site: The project area is located in the central portion of the Puget Sound Lowland. Various soils and bedrock have been classified in the project area and are generally described below. Fill Most of the lower Duwamish River Valley has been extensively modified by filling and dredging activities over the last century. Almost all surficial soils in developed areas have been disturbed to some extent by road grading and filling of topographic depressions to provide level structures. Fills in the Duwamish Valley commonly consist of loose or loose to medium dense, fine to medium sand and silty sand placed hydraulically over areas that were previously estuarine mudflats or low areas along the Duwamish River. Fills, however can range widely. Other fills have been placed to support specific structures. These include the majority of the Burlington Northern / Union Pacific Railroad tracks south of I- 5 and many of the industrial and warehouse buildings in the Duwamish Valley. Alluvium /Estuarine Deposits Alluvium is present in the small stream channels and along the Duwamish River. These deposits are usually thin and localized and range in gradation from silt to sand and gravel. Duwamish Valley alluvium and estuarine soils consist predominately of fine and fine to medium loose to medium dense sand, silty sand and silt. In'some areas finer - grained or organic alluvium/ estuarine soils have been observed. These deposits include beds of clay, clayey silt, organic silt and peat. In some cases the finer - grained soils are very loose to loose or very soft to soft. The thickness of the alluvium /estuarine deposits is variable, but generally thickens toward the mouth of the Duwamish River. Vashon Till Till is an unsorted mixture of clay, silt, sand, and gravel deposited directly beneath a glacier and densely compacted by the weight of the overriding ice. Within the project area the till is usually classified as a silty sand, sandy silt, or clayey silt. Occasionally large boulders (up to approximately 10 -feet in diameter) are found within the till. Bedrock Bedrock outcrops appear along the slopes east of the Duwamish River. These outcrops include rocks of the Blakely Formation and older Eocene age sedimentary rocks of the Tukwila and Renton Formations. The Blakely Formation is an interbedded sequence of marine siltstone, sandstone, shale and conglomerate. The Tukwila and Renton Formations are typically deeply weathered and soft near the ground surface. b. What is the steepest slope on the site (approximate percent slope)? Most of the area along the pipeline alignments and in the vicinity of the new pumping station site have slopes of between 0 and 5 per cent. Slopes to 30 percent occur at sites of engineered fill (e.g. I -5 and railroad embankments) and along the shoreline of the river. c. What general types of soils are found on the site (for example clay, sand, gravel, peat, muck)? Specify the classification of agricultural soils and note any prime farmland. Tukwila Trunk In the Preliminary Geotechnical Study. Tukwila Trunk Sewer Rehabilitation Project. Tukwila. Washington (Golder Associates, 1990), four strata were identified in this portion of the study area. These four strata generally correspond to those described in B.1.a. above. It can be expected that all of the above mentioned soil types will be encountered during construction of the Tukwila Trunk Sewer. The ground water table appears to vary between elevation 4 to 12 feet along the alignment (Golder Associates, 1990). Based on excavations associated with the Renton ETS line, contaminated soils are not anticipated. Interurban Pumping Station The soils at the new Interurban Pumping Station site are likely to be very similar to those described above. Some or all of these soils may be encountered during construction, depending upon the extent of the excavation. 10 Forcemain The soils encountered during construction of the forcemain are likely to be similar to the soils mentioned above in varying depths of thickness. Fills near the Burlington Northern / Union Pacific Railroad tracks are likely to be well compacted sandy gravel. d. Are there any surface indications or a history of unstable soils in the immediate vicinity? If so, describe. The topography of the pumping station site and pipeline corridors is relatively flat and not subject to unstable soil conditions. At the same time, much of the area consists of fill with a relatively high groundwater table. These conditions require special construction techniques (e.g. dewatering and tight- sheeting). e. Describe the purpose, type, and approximate quantities of any filling or grading proposed. Indicate the source of the fill. For the Tukwila Trunk, an estimated 24,000 cubic yards will have to be excavated. About 17,000 cubic yards of bedding and fill material will have to be imported, probably from local gravel pits. About 17,000 cubic yards of material will have to be hauled away for disposal. At the site of the proposed Interurban Pumping Station, an estimated 2,800 cubic yards of material will be excavated. Imported fill requirements will be about 1,400 cubic yards; between 1,500 and 1,600 cubic yards of material will be hauled away for disposal. \. &4 2 For the forcemain (both alternatives), about '10,000 cubic yards will have.to There will be about 3,500 cubic yards of imported bedding and fill material; about 3,500 cubic yards of material will have to be hauled away for disposal. All material shall be disposed of at an approved disposal site. 11 f. Could erosion occur as a result of clearing, construction, or use? Construction of the Tukwila Trunk, new pumping station and forcemain will require excavation by means of conventional equipment (e.g. hydraulic backhoes, front -end loaders). Temporary increases in surface runoff and soil erosion may occur as a result of removal of vegetation, and loosening, exposure and stockpiling of soils uring construction. h fkC thdr) i0/ at N 12 JO g. About what percent of the site will be covered with impervious surfaces after project construction (for example buildings or asphalt)? Following installation of the new Tukwila Trunk and the forcemain to the Metro treatment plant at Renton, disturbed areas will be restored to their original condition (e.g. paved, landscaped, undeveloped). In these areas, there should be no 'net change in impervious surfaces. At the site of the new pumping station, it is estimated that there will be an additional 9,000 square feet of impervious surface, consisting of the structure and accessory parking areas. h. Describe the proposed measures to reduce or control erosion, or other impacts to the earth, if any. Proposed measures to reduce or control the project's short -term construction- related impacts on earth and soils may include the following: - designing dewatering systems to minimize silt and turbidity in discharge; - minimizing the size of disturbed areas along the pipeline corridors and at the new pumping station site; - employing erosion control techniques such as silt fences, hay bales, sedimentation ponds, etc.; - covering stockpiled soils with sheeting to minimize erosion potential; - minimizing excavation and other earthwork within shoreline zones; 2. Air 13 - restoring disturbed areas (i.e. replanting, repaving) as soon as practical after construction has been completed; - installation of the forcemain on the golf course will occur within the February 1 - March 15 period in order to enhance resodding success and related site restoration efforts; - compliance with City of Tukwila and City of Renton erosion control requirements; and - continuous supervision of construction activities by Metro inspectors and enforcement of Metro's erosion control - related specifications. a. What types of emissions to the air Would result from the proposal (e.g. dust, automobile, odors, indust rial, wood smoke) during construction and when the project is completed? If any, generally describe and give approximate quantities, if known. Over the 18 month construction period, exhaust from construction vehicles, equipment and haul trucks will be the primary sources of air emissions. This will consist primarily of carbon monoxide and hydrocarbons. Construction activities will also generate minor amounts of dust and particulates. Over the long term, there is potential for odor generation in the Tukwila Trunk, in the wetwell at the new pumping station, and in the forcemain. Hydrogen sulfide and other gases can be generated in wastewater facilities under low oxygen or anoxic conditions. This is of particular concern when the organic content of wastewater is relatively high. For this project, odor generation is of concern at the pumping station wetwell, where turbulence releases gases to the atmosphere. Hydrogen sulfide and other gases also tend to accumulate along the forcemain, a low oxygen environment. At high points along the forcemain, these gases tend to accumulate and have the potential for restricting flow. In addition, turbulence at the forcemain discharge (i.e. transition from a pressure line to a gravity line) causes release of accumulated gases to the atmosphere. c. Describe proposed emissions or other A number control quality. In order station, installed exchanges from the activated avoidance of prolonged idling construction vehicles and equipment; • 14 b. Are there any off -site sources of emissions or odors that may affect your proposal? if so, generally describe. The discharge of the rendering plant to the Interurban collection and conveyance system creates high odor potential at the existing Interurban Pumping Station because of the high organic content of the waste flow. measures to reduce or control impacts to air,,if ny. of measuresGan be employed to reduce or construction-related impacts on air These include: - careful adherence to traffic control plans in order to avoid extended slowdowns of local traffic; of - requiring contractors to maintain vehicles and equipment in good operating condition; - use of electrically - powered equipment where practical; - controlling dust by spraying exposed soils during dry seasons as needed; and - periodic cleaning of haul trucks and roadways in the immediate vicinity of construction sites to reduce generation of dust. Over the long -term, a number of odor control measures will be implemented to reduce odor generation at the new pumping station and along the forcemain route. to control odor within the pumping separate ventilation systems will be for wetwell and drywell (12 and 6 air per hour, respectively). Exhaust air wetwell will be scrubbed using an carbon unit for odor control. Chemical storage and feeding facilities will be provided for odor and corrosion control in the / L) acc, Gtd L�2� ttc OtI L (5' 3. Rater forcemain. Chemicals may include caustic soda, sodium hypochlorite and iron salts. There are three potential high points along the alternative forcemain alignments: the golf course footbridge (Alternative A), the Black River pipebridge (Alternative A) and the Duwamish _'ver pipebridge (Alternative B). A gas release will be needed to prevent gas poc eis___f__rom form at these locations. %�J'l1-P/1(,2M(A Gases from the golf course footbridge (Alternative A) will be directed back to the pumping station for scrubbing. At the Black River pipebridge (Alternative A) and Duwamish River pipebridge (Alternative B), gases will be drawn to the shoreline for scrubbing with a small, below -grade activated carbon unit and a small above -grade vent. At the Metro treatment plant at Renton, facilities will be provided to control the release of odorous gases which have accumulated in the forcemain. A C-- chlorine injection point will be provided adjacent to the north plant entrance road. This facility will be located as far upstream as possible from the forcemain discharge (though still on the treatment plant site), in order to allow the maximum amount of time for mixing and the destruction of hydrogen sulfide. A new transition structure will be installed to create turbulence and strip hydrogen sulfide from the wastewater flow. The gases generated in the transition structure will be c. _ - ted and passed through an activated carbon - Grubber before being released to the tmosphere. L (' - po�a ) 1 0 ) ti n77 o a t1- o/aii/)' ' fi ddllfea aei a. surface: 15 cb-u-Autt ?*6192- leciltk 1. Is there any surface water body on or in the immediate vicinity of the site (including year -round and seasonal streams, saltwater, lakes, ponds, and wetlands)? If yes, describe type and provide names. If appropriate, state what stream or river it flows into. The principal surface water body located in the vicinity of the project is the Duwamish (Green) River. The project involves potential bridge crossings of the river at the existing 16 r Foster Golf Links footbridge (Forcemain Alternative A) and a new pipebridge at the southwest corner of Fort•Dent Park (Forcemain Alternative B). In addition, construction activities (Tukwila Trunk) will occur within {200 feet of the Duwamish River near the Val Vue Connection and just south of I -5. The confluence of the Black River Channel and the Duwamish River is located at the northeast end of Fort Dent Park. Forcemain Alternative A crosses over the Black River with a new pipebridge just east of the rail lines within the existing ETS pipeline right -of -way. There is a large drainage ditch along portions of the east side of Interurban Avenue S. near the Gateway Park development and south of Foster Golf Links. Proposed Tukwila Trunk alignments will be located parallel 'to and east of this drainage facility. The City of Tukwila maintains a large drainage facility near the Val Vue Connection. It is a large open ditch / ravine which directs runoff from near SR 599 under Interurban Avenue S. to the Duwamish River. The new Tukwila Trunk will cross under this ditch near the loc -_•n of the existing Tukwila Trunk line. may utilize the extreme lower portions of s drainage. There is a large pond / retention basin on the east side of Fort Dent Park near the base of the railroad embankment. Forcemain Alternative A will run between the pond and the railroad embankment. 'The City of Tukwila has established a 50 foot buffer requirement around the pond '; A variance will have .:to. : <be obtained from the. city to construct within this .buffer. JJ � Yl Will the ro e��r• require over, 2. P 7 Y e r , in, or adjacent to (within 200 feet) the described waters? If yes, please describe and attach available plans. The Interurban Sewer System Project will require construction within 200 feet of surface waters in several locations, depending on which forcemain alternative is selected: a) the Tukwila Trunk just south of the Val Vue Connection (Duwamish River), b) the Tukwila Trunk just south of I -5 (Duwamish River), c) Forcemain Alternative A at the Foster Golf Links footbridge (Duwamish River), d) Forcemain Alternative A's new pipebridge crossing (Black River), and e) Forcemain Alternative B's river crossing near the southwest end of Fort Dent Park (Duwamish (Green) River). These locations are shown in Figures 1 and 2. Construction of the Tukwila areas will involve open methods. The trunk will depth of between 15 and 22 Tightsheeting of the trench likely to be required. It is expected that the 20 -inch forcemain can be hung from the existing golf course footbridge using shore -based equipment. Impacts on the shoreline and riparian vegetation should be minimal if, staging areas are set back from the river. f ell" uu fir , a � : Similarly, the new pipebridge crossing at the Black River will be accomplished using shore - based equipment. The new pipebridge at the southwest end of Fort Dent Park will be constructed principally with shore -based equipment with a smaller amount of floating equipment. Impacts to the, shoreline and riparian vegetation can be minimized if staging areas are set back from the shoreline. Potential impacts will be further reduced if this crossing is accomplished by tunnel " n y g under the river. 17 Trunk in shoreline cut construction be installed at a feet below grade. and dewatering are 3. Estimate the amount of fill and dredge material that could be placed in or removed from surface water or wetlands and indicate the area of the site that would be affected. Indicate the source of fill materials. The new Tukwila Trunk will be constructed across the City of Tukwila drainage facility just south of the Val Vue Connection using open cut construction methods. Construction will occur during the dry season when flows in this facility are at a minimum. Existing soils will be excavated several feet below the bottom of the ditch / ravine and clean imported fill used for bedding material and backfill. It is estimated that 400 cubic yards of material will be excavated and 200 cubic yards of imported fill will be required for installation of the 24 -inch sewer at this location. The new pipebridge crossing of the Duwamish River near the southwest end of Fort Dent Park (Forcemain Alternative B) may require a small amount of dredging and filling as part of ' bridge footings. The dredge and fill volumes will be determined following design work if this forcemain alternative is selected. No other filling or dredging from surface waters or wetland areas is anticipated. 4•. Will the proposal require surface water withdrawals or diversion? Give general description, purpose, and approximate quantities, if known. Depending on season, the project may require temporary diversion of surface waters in the City of Tukwila drainage facility just south of the Val Vue Connection. Construction will be scheduled during dry weather conditions when flows are at a minimum. Any diversion is expected to last no more than several days. 5. Does the proposal lie within a loo -year flood plain? If so, note location on the site plan. A number of locations along the trunk and forcemain alignments lie within the 100 -year 18 b. Ground floodplain. See Figures 3 and 4 for specific locations. Forcemain Alternative B's new pipebridge crossing to Fort Dent Park will be designed to provide 6 feet of clearance above the 100 -year flood elevation. .l o at 2 6. Does the proposal in discharges of waste materials to surface waters? If so, describe the type of waste and anticipated volume of discharge. The project does not involve the discharge of waste materials to surface waters. 1. Will ground water be withdrawn, or will water be discharged to ground water? Give general description, purpose, and approximate quantities if known. Dewatering will be required for installation of the Tukwila Trunk from the Val Vue Connection to the proposed pumping station at the south end of Foster Golf Links. Dewatering is also likely at the new pumping station site. Based on experience constructing the Renton ETS line, it appears that it is unlikely that groundwater will be contaminated, although there may be some petroleum hydrocarbons in the vicinity of the gas stations just north of I -5. Groundwater will be discharged to the sanitary sewer, to local storm drainage facilities or tight -lined to the Duwamish River depending on location, volumes and quality. Groundwater will be tested periodically over the course of construction to determine the appropriate method(s) of disposal. Discharge of dewatering volumes to the sanitary ; ; ; system ;;will ,, require a Metro Industrial` Waste discharge approval. The Department of Ecology will have to approve discharge to the Duwamish River and /or tributaries to the river. No groundwater withdrawals will occur once construction has been completed. 19 inh1.311•Lal.:.r T ZONE AE CITY OF TUKWILA scar ZONE X RM325 ZONE X RM326 Footendye z a z 1 ZONEX Figure 3. 100-year Flood Zones Interurban North q-}1 tt AFI.OXIMATE SCALE IN FEET II SOO • SOO RM324\\ l i \� ZONE `J L_J Lsnm.r— r rT; t ZONE X C r ZONE AO \fit RM ZONE AE • f - * {•; t., .(•; SCrUll-r-142/10 'PLACE ‘4. 11 Figure 4. 100-year Flood Zones Interurban South CITY OF TUKWILA APPROXIMATE SCALE IN FEET 500 0 500 so-Dili— r43ii0 --srl: 7:9:7,.;...r*:4•• e ' 1 / 46,0 ,.,,. 0 0-' 1. k 14 - s'' . . i '° I ' ,,rhi: 4 ''' .1. - ` 11 ; '-'• • ot:r„... -,,. ' -_ •z7 ! ,eV .-' "1;4 ',.',. " , .:41r;-:,■.,Fi, t e - 4:',1.....' , ..: • • .., ;'',. 114, 4 . • , 1 41 i;::71.: % , . ‘' ' .. . 1 . [1 ....„1„ .1. .... , , . ..,(••;:;;;,.,...J, -• , !, :" - . .."6 . ., ,.. ,,, .1 ZONE X _ .. . 400 0. 0111P- 4 5 I" I P/54941r; ri, mil Strain,: - • ) ZONE X 13) 1110 33 ` 24 . \ III NOUN WASIE WAI I fl 1111 Al MI NI 14.AN1 • _ . 20 JP 2. Describe waste material that will be discharged into the ground from septic tanks or other sources, if any. Describe the general size of the system, the number of such systems, the number of houses to be served (if applicable), or the number of animals or humans the system(s) is expected to serve. High points in the forcemain at the Black River pipebridge crossing (Alternative A) and Duwamish (Green) River pipebridge crossing (Alternative B) will collect gas bubbles. These will be treated using an activated carbon scrubber. Any sewage associated with this gas will be discharged to local sewer lines or treated in a small drainfield. Wastewater volume is expected to be very low (several gallons per day). Discharge of sewage to a local drainfield will require an On -site Sewage Disposal System Permit from the Seattle -King County Health Department. c. Water Runoff (including storm water) 1. Describe the source of runoff (including storm water) and method of collection and disposal, if any (including quantities if known). Where will the this water flow? Will this water flow into other waters? If so, describe. During construction, runoff from construction sites has the potential for reaching local drainages, the Duwamish and Black Rivers and Fort Dent Pond. The relatively flat topography and the locations of much of the construction which will occur indicates that control of runoff can be accomplished with careful attention to standard construction practices. In the immediate vicinity of surface water bodies such as the Duwamish.. and Black Rivers and Fort Dent Pond; "= special'' methods for controlling runoff may necessary to prevent turbid runoff from reaching these waters. The new pumping station is expected to add about 9,000 square feet of impervious surface to the area. This will slightly increase storm runoff and drainage in the immediate vicinity of the station, however, the impact on existing drainage facilities will be minor. C (44AcollAavulloi PloPA 2. Could waste materials enter ground or surface waters? If so, generally describe. During construction, solvents, lubricants, construction vehicles potential for reaching n if contractors do ! specifications and practices. 21 petroleum products, etc. associated with and equipment have the surface and groundwater not follow project standard construction Once the system becomes operational, no waste materials are expected to reach ground or surface waters. d. Describe proposed measures to reduce or control surface, ground, and runoff water impacts, if any. One of the principal objectives of this project is to reduce combined sewer overflows to the Duwamish River by expanding the capacity of the Tukwila Trunk. This will result in improved water quality in the river, particularly in the vicinity of Interurban Avenue S. and 42nd Avenue S. Potentially adverse impacts on water quality associated with the trunk sewer, pumping station and forcemain are related to construction. The following methods can be used to reduce or control these impacts: - Minimizing the amount of area and vegetative cover disturbed by construction; - Maintenance of stream and river bank integrity; - Limiting construction in sensitive areas (i.e. wetlands, stream crossings) to dry seasons to reduce potential for turbidity; - Use of sedimentation controls such as hay bales, rock filters, silt screens and fences, on -site sedimentation basins, and drainage swales; - Strict adherence to Metro guidelines for dewatering; periodic testing of groundwater quality; depending on volume and quality, groundwater will be directed to sanitary sewers or storm drains; if groundwater is contaminated, on- site treatment may be necessary; - As far as possible, construction vehicles and equipment will be stored away from surface waters; 22 contractors will be required to handle any petroleum products, lubricants, solvents, etc. in a responsible manner in accordance with . generally- accepted construction practices; c - Stockpiles of excavated material and /or imported bedding material will be stored away from surface waters and will be covered when not in use; - Disturbed sites will be restored with vegetation (preferably native) as soon as practical after construction has been completed; and - Use of pervious paving materials (e.g. "grasscrete ") where practical instead of asphalt or concrete. 4. Plants a. Types of vegetation found on site: Deciduous trees: alder, maple, cottonwood, willow, birch, various ornamentals Evergreen trees: douglas fir, pine, ornamentals Shrubs: various Grass: various, ornamental (golf course, park) Pasture: none Wet Soil Plants: see description below Water Plants: see description below Vegetation along the Tukwila Trunk corridor, the site for the new Interurban Pumping Station, and two alternative forcemain routes is described below. Tukwila Trunk. Just south of the. Val Vue Connection, there is a deep (20 feet) drainage which crosses Interurban Avenue S. and the City Light right -of -way, draining to the Duwamish River. Running water was observed in the lower portion of this drainage, an estimated 100 feet east of the existing Tukwila Trunk line. Vegetation observed included reed canarygrass and himalayan blackberry. Much of the proposed alignment follows the City Light right -of -way along Interurban Avenue S. 23 ao North of I -5, the eastern portion of the right -of- way has been landscaped with lawn and small ornamental trees. South of I -5 along the pedestrian / bicycle path, vegetation includes deciduous trees and grasses. There is also a large drainage ditch which runs about 20 feet east of Interurban Avenue S. and parallel to it. The ditch includes associated emergent /scrub -shrub wetland vegetation typical of the region. Just south of I -5, the Duwamish River flows close (100 feet) to Interurban Avenue S. The vegetative community adjacent to the river is dominated by deciduous trees and shrubs. The preferred pumping station site adjacent to Interurban Avenue S. just south of the golf course does not support any vegetation of significance. Vegetation on Foster Golf Links consists primarily of turf with a variety of both ornamental and native trees. Douglas fir is common throughout the course. On the east side of the rail lines, the forcemain corridor has been highly modified by industrial activities. Only limited native vegetation is present along the railroad embankments. The Black River supports a very limited amount of riparian vegetation (e.g. willows). From the northeast corner of the Fort Dent Park, Forcemain Alternative A will parallel the rail lines (west side) to the southeast corner of the park. For the most part, this area consists of large grassy areas with occasional deciduous (i.e. maples, birch) and evergreen (i.e. Douglas fir, pine) trees. The forcemain will run between the railroad embankment and the large pond along the eastern margin of the park.. The eastern margin of the pond is located approximately 40 feet from the rail line embankment; the area contains a pedestrian gravel walkway and benches, and is landscaped with a number of birch trees (25 -30 feet in height). Forcemain Alternative B will run south from the new pumping station along Interurban Avenue S. to a location across the river from the south end of Fort Dent Park. Vegetation along this alignment has been highly altered by commercial, industrial and transportation land uses and provides only limited habitat for wildlife. The proposed bridge crossing to Fort Dent Park will encounter a variety of riparian vegetation, including willows, alder, maple, and himalayan blackberry. Once in Fort Dent Park, the forcemain will cross to the rail lines along the south margin of the park, crossing multi- purpose grass fields with occasional deciduous and evergreen trees. From the southeast end of Fort Dent Park, both forcemain alternatives involve jacking the pipeline under the rail lines and following the existing ETS forcemain alignment to Metro's treatment plant at Renton. This alignment follows an unpaved road used for access from Monster Road S.W. to the rail lines. Vegetation is very limited in this section. b. What kind and amount of vegetation will be removed or altered? Tukwila Trunk. Construction of the Tukwila Trunk will involve disruption of landscaped areas both north and south of I -5. These areas consist of grass and small ornamental trees. The large drainage ditch adjacent to Interurban Avenue S. will be avoided. Just south of the Val Vue Connection, vegetation in the deep drainage ditch (described above) which runs perpendicular to the pipeline will be removed as the trunk is installed below the bottom of the ditch. This section of pipeline will be tight- sheeted, so the amount of vegetation lost will be limited to a corridor of about 15 feet. Interurban Pumping Station. Construction at the new pumping station site will involve removal of minor amounts of vegetation on the 0.3 acre site. This site has been highly altered and little vegetation of significance is present. Interurban Forcemain. Forcemain Alternative A will involve removal of golf course vegetation (e.g. grass, Douglas fir, ornamentals) principally between the golf course footbridge and the railroad embankment. The proposed alignment will cross fairways 11 through 15, and may result the removal of several Douglas fir trees (about 30 feet in height). Greens will be avoided. GLP e / �N WO/ 24 1 `t ! �,/ J • ) I A 14/ 1p1114 in 44 7 ') L r j �? l (.41. &C.. ZAN cE _ /1011 S“ a kergtir r ocvc.9. rifizyc/_:, /16-4 7 (am) ( On the east side of the rail lines, the route will follow the existing ETS pipeline alignment. North of the Black River, much of this corridor has been highly altered by industrial activities and little vegetation is present along much of the route. In Fort Dent Park, construction of Forcemain Alternative A will involve additional removal of grass through a 30 to 40 foot construction corridor. As far as possible, existing trees and shrubs will be avoided. However, Alternative A may affect several Douglas fir trees (20 to 30 feet in height) in the northeast corner of the park where the forcemain crosses under the railroad tracks. Depending on the alignment and distance from the fenced property line, up to 13 maple trees and one pine tree may be adversely affected along the northeast perimeter of the park. OP/Ozeoie:00/ This alignment will run between the embankment and Fort Dent Pond. It` that the forcemain can be installed without' removing an of the birch trees (22 trees between 15 to 30 feet in height) located on the east side of the pond. However, an undetermined number of trees may be lost through root damage. Southeast of the pond and east of the soccer field and ball field (undeveloped), several Douglas fir trees (20 to 30. feet in height) may be affected, again depending on the final alignment. 1 Forcemain Alternative B will involve removal of riparian vegetation on the river banks at the proposed pipebridge crossing to Fort Dent Park. Staging areas for construction of the bridge would involve removal of lawn in Fort Dent Park in the southwest portion of the park. It is likely that the loss of vegetation associated with installation of the forcemain from the river to the rail line will be limited to loss of turf and occasional . small trees. From the southwest corner of Fort Dent Park to Metro's treatment plant at Renton, minor amounts of grasses and perennials along the railroad access road will be lost during construction. This area has been highly altered and losses are not expected to be significant. Similarly, a small amount of turf, shrubs and small trees may be lost during construction of the 25 �r� forcemain and transition structure on the treatment plant site. c.. List threatened or endangered species or critical habitat known to be on or near the site. A search of the Natural Heritage Data System of the Washington State Department of Natural Resources was conducted in 1989 for another project which included the Interurban study area (Municipality of Metropolitan Seattle, 1990). The search for significant natural features found "...no records for rare plants, high quality native plant communities of native wetlands..." d. Describe proposed landscaping, use of native plants, or other measures to preserve or enhance vegetation on site. A number of measures can be employed to minimize construction - related impacts on vegetation: - Whereyexisting vegetation has been disturbed as part of construction, these areas will be replanted as soon as practical after construction has been completed. Depending on location, these plantings will be native or ornamental grasses, groundcovers, shrubs and trees; - Forcemain alignments through the golf course and Fort Dent Park will avoid removal of trees wherever possible; - As far as possible, trees lost to construction will be replaced with trees of similar size and species; additional trees may also be planted to offset the size difference between lost trees (20 -30 feet) and nursery stock (14 to 16 feet); some trees may be moved using a large tree "spade ", if transplanting takes place during dormancy; - Contractors will be required to take special precautions to avoid impacts on wetland areas, streams and drainages adjacent to construction corridors (e.g. drainage along Interurban Avenue S., Duwamish River shorelines, Fort Dent Park Pond); - Installation of the forcemain on the golf course will occur within the February 1 - • 26 5. Animals March 15 period in order to enhance resodding success and related site restoration efforts; and - In the event that streamside rehabilitation is necessary, particular attention will be given to a "beneficial" waterside planting scheme designed to enhance the fishery related habitat. a. Circle any birds and animals which have been observed on or near the site or are known to be on or near the site: Invertebrates: shellfish, insects, other Fish: bass, salmon, trout, herring, other Amphibians: frogs, salamanders, other Reptiles: lizards, snakes, turtles, other Birds: hawks, heron, eagle, songbirds, ducks, other Mammals: deer, bear, elk, beaver, rabbit, other Of the entire pipeline corridor, wildlife was observed in greatest concentration in Fort Dent Park Pond. Wildlife using the pond area on the day of the field visit included Canada geese, mallards, domestic ducks and geese, red - winged blackbirds, song sparrows, gold finches, and frogs. Salmon may utilize the extreme lower portions of the large drainage near the Val Vue Connection at certain times of the year. b. List any threatened or endangered species or critical habitat near the site. The Washington State Department of Wildlife reviewed their files for information on the occurrence of special animals within or adjacent to the Duwamish River corridor in 1989 as part of another project (Municipality of Metropolitan Seattle, 1990). Two species were identified: the great blue heron (Ardea, berodias) and the bald eagle (Kaliaeetus leucocephalus). 27 The great blue heron has been designated a "monitor" species by the Washington State Department of Wildlife. The nearest major rookery is located east of the Metro treatment plant at Renton. Bald eagles are considered "threatened" under both federal and state criteria. Bald eagles are observed with some frequency in the Duwamish Valley, recently in the vicinity of the heron rookery cited above. c. Is the site part of a migratory route? If so, explain. The Tukwila Trunk corridor, the new pumping station site, and alternative forcemain routes are not known to be specific parts of migration routes. However, in a larger sense, the Duwamish Valley supports a wide variety of migratory waterfowl, raptors and songbirds. d. Proposed measures to preserve or enhance wildlife, if any. Faciltiy sites and alignments have been carefully selected to minimize .impacts on vegetation and wildlife. In addition, a number of specific mitigation measures can be implemented to reduce impacts on wildlife. - Replanting of disturbed areas along pipeline corridors as soon as practical will tend to reduce impacts on wildlife; - Where possible, replanting will use native plant species, thereby enhancing wildlife utilization; and - Scheduling of construction work at river crossings will be coordinated with fisheries agencies and tribes in order to reduce potential impacts on fishery resources. 6. Energy and Natural Resources a. What kinds of energy (electric, natural gas, oil, wood, solar) will be used to meet the completed project's energy needs? Describe whether it will be used for heating, manufacturing, etc. During construction, fossil fuels will be utilized to power construction vehicles, equipment and haul trucks. Electrical energy may also be used to 28 x operate some construction equipment (e.g. dewatering pumps). Once operational, the Interurban Pumping Station will reduce electrical energy requirements used to operate pumps, controls, ventilation, odor control and lighting by approximately 570,000 kwh /year, compared to the existing pumping station. b. Would the project affect the potential use of ' solar energy by adjacent properties? If so, explain. The project will not affect the potential use of solar power by adjacent property owners. c. What kinds of energy conservation features are included in the plans of this proposal? List other proposed measures to reduce or control energy impacts, if any. Energy conservation measures will be incorporated into the design of the pumping station and forcemain. These will include: the use of energy efficient pumps and motors; selection of energy - efficient lighting and electrical systems; and insulation of the structure and heating systems. 7. Environmental Health a. Are there any environmental health hazards, including exposure to toxic chemicals, risk of fire and explosion, spills, or hazardous waste that could occur as a result of this proposal? If so, describe. The only hazardous materials used for construction of the project will be fossil fuels (i.e. diesel, gasoline) used to power vehicles and equipment and various lubricants and solvents. It is possible that inadvertent spills of these substances could result in health hazards, however, the potential for adversely affecting the environmental health of workers and nearby residents is low. The new pumping station will require . : chemical ; ._; storage and feeding facilities in order to control hydrogen sulfide in the forcemain. Various chemicals are typically used for this purpose including caustic soda, sodium hypochlorite and 29 ( 01 iron salts. A 5 000'" "gallon`: below; grade storage will be provided for storage of the specific chemical selected for this purpose. 1. Describe special emergency services that might be required. No special emergency services will be required. Standard first aid supplies will be kept on hand at construction sites by contractors. 2. Describe proposed measures to reduce or control environmental health hazards. b. Noise Occupational Safety and Health Act (OSHA) regulations regarding safety equipment and procedures will be strictly enforced on construction sites. The storage and feeding facilities at the new pumping station will be designed to meet required safety provisions including secondary containment, alarms, annunciator, and vents, as well as spill response procedures. 'Increasing the capacity of the Tukwila Trunk will reduce the frequency and volume of sanitary overflows to the Duwamish River. This will have a positive effect on public • health and beneficial uses of the river. 1. What types of noise exist in the area which may affect your project (for example: traffic, equipment operation, other)? There are a variety of noise sources in the vicinity of the proposed project, however, the existence of background noise will not affect the project. Tukwila Trunk Automobile and truck traffic on Interurban Avenue S., I -5 and SR -599 are the predominant sources of noise in the vicinity of the proposed Tukwila Trunk. Other noise sources in proximity to the site include: rail traffic on the Burlington Northern / Union Pacific rail lines east of the site; and air traffic 30 Fi nes 5 ca f 100475 from Boeing Field and Sea -Tac International Airport. In general, background noise levels are typical of commercial / industrial areas. Interurban Pumping Station Noise sources in the vicinity of the proposed pumping station site are similar to those sources discussed for the Tukwila Trunk. Background noise levels are relatively high because of the volume of truck traffic on Interurban Avenue S. and the industrial character of the area. Renton Concrete Recyclers, located north of the Black River, is_a significant source of noise, both from facility operation and haul truck activity. Forcemain The dominant noise sources in the vicinity of the proposed forcemain are automobile and truck traffic on Interurban Avenue South, I -5, I -405, rail traffic on the Burlington Northern / Union Pacific rail lines east of the site and the concrete recycling facility. More distant noise sources include automobile and truck traffic on SR -599 and air traffic using Boeing Field and Sea -Tac International Airport. Noise levels generally reflect the industrial nature of the area. 2. What types and levels of noise would be created by or associated with the project on a short - term or long-term basis (for example: traffic, construction, operation, other)? Construction of the various project elements w41 take place between the hours of 7:00 a.m. and 7:00 p.m. on weekdays. No weekend or evening work is anticipated. Tukwila Trunl Noise impacts will be generated by construction activities and equipment and by haul trucks and worker vehicles. Excavation will be accomplished using conventional equipment such as and graders. These typically result in noise levels of approximately 80 to 85 dBA at a distance approximately 50 feet from the source. Overall, based on the types of equipment and 31 activities anticipated, average noise levels ranging from 76 to 91 dBA (at 50 foot distance) can be expected. Installation of sheetpiles will be accomplished using vibratory pile drivers. Use of vibratory pile drivers can reduce noise levels approximately 30 percent at the source, or about 30 dBA, compared to impact pile drivers. Maximum noise levels expected are about 70 to 71 dBA, 50 feet from the source. Construction vehicles will generate noise on area roadways. Heavy trucks (three or more axles) generate about 83 dBA at 40 miles per hour and 87 dBA at 60 mph, according to Federal Highway Administration estimates. It is expected that most truck traffic approaching the site will be travelling 40 mph or less. Consequently, peak noise levels generated by heavy trucks will be up to approximately 83 dBA. Project area roadways, including Interurban Avenue S., currently experience significant volumes of truck traffic and associated noise levels. The additional construction- related traffic associated with the Tukwila Trunk is not expected to cause noticeable noise increases. Over the long term, operation of the Tukwila Trunk will not generate any significant noise. Interurban Pumping Station Pumping station construction will last approximately 18 months. The first phase, lasting approximately four months, will include excavation, foundation and structural work. The second phase, lasting approximately 14 months, will include mechanical and electrical work. Noise impacts will be generated by construction activities and equipment and by haul trucks and worker vehicles. Excavation for the pumping station will be accomplished using conventional equipment such as backhoes and graders, which typically result in noise levels of approximately 80 to 85 dBA at a distance of 50 feet from the source. Overall, based on the types of equipment and activities anticipated, average noise levels ranging from 32 33 76 to 91 dBA (at 50 foot distance) can be expected. This noise level is roughly consistent with the existing noise levels in the area, which is heavily influenced by truck traffic along Interurban Avenue S. If ground water is encountered during construction, installation of sheetpiles for dewatering will be accomplished using vibratory pile drivers. Use of vibratory pile drivers results in noise levels of approximately 70 dBA at a distance of about 50 feet from the source. Approximately 60 one -way truck trips per day will be generated during initial site excavation, lasting approximately one week. Most trucks will access the site via Interurban Avenue S. Following initial site excavation, material delivery truck trips will average four to six one -way trips per day with a peak of 20 one -way trips per day. Each truck trip will generate peak noise levels up to 83 dBA, however, this impact is not expected to be noticeable to surrounding receptors because of the existing high level of truck use on Interurban Avenue S. Golfers may notice the additional noise, especially when playing near the construction site. The completed pumping station will not result in significant "noise:: impacts. The pumping station structure will be insulated to reduce pump, generator and fan noise to the extent that pump station operation will be essentially indistinguishable from other local noise sources. Forcemain Forcemain construction will generate noise levels roughly similar to Tukwila Trunk construction, described previously. The duration of noise disruption along any given section of forcemain will, however, be reduced because less excavation will be required (forcemain trench depth will be 5 to 6 feet compared to 25 feet for the Tukwila Trunk). For Alternative A, the nearest receptors include the golf course, light industry located along Interurban Avenue S., light 34 industrial uses adjacent to the Burlington Northern / Union Pacific rights -of -way and Fort Dent Park. Construction within the golf course will occasionally place construction activity within 100 feet of golf activity. Peak noise levels at this site could reach 91 dBA on occasion. Forcemain Alternative A will cross the Duwamish -Green River on the existing foot N ' bridge located in Foster Golf Links. It is expected that the forcemain can be hung from existing�sr'ie. Consequently, noise levels typically associated with new bridge construction activities (e.g. floating equipment, cranes, concrete trucks) are not likely to occur. Pipe installation will be accomplished relatively quickly using land - based equipment. The forcemain will then cross the golf course where it will be bored or tunneled beneath the Burlington Northern / Union Pacific rights -of- way. Under this alternative the nearest sensitive noise receptor will be users of the golf course. k noise levels at this site could reac291 dBA on occasion. Some disruption of golf activities may occur as players wait for peak noise levels to subside. Construction of Forcemain Alternative B will result in noise levels similar in nature and duration to those described above. This alignment will require a greater amount' of pavement breakup than Alternative A. Pavement breakup will generate noise levels up to 90 dBA at 50 foot distance for short periods. Forcemain Alternative B involves a new crossing of the Duwamish (Green) River near the south end of Fort Dent Park. This will be either a new pipe bridge or a tunnel under the river. Peak noise levels could reach 100 dBA if impact piledrivers are used for construction of a new bridge. Additional noise from floating construction equipment (e.g. diesel engines, generators, cranes) will also be generated. These types of equipment can be expected to generate intermittent noise levels ranging from 70 to 95 dBA at a distance of 50 feet. t:- cov 8. Land and Shoreline Use If the forcemain is jacked under the river, noise levels can be expected to be similar to those which will occur when the forcemain is jacked under the rail lines. For short periods of time, jacking equipment will generate high noise levels (e.g. greater than 90 dBA at 50 foot distance) for intermittent periods. This noise will be noticeable to Fort Dent Park users, particularly in the south end of the park. The completed forcemain will not generate any significant long -term noise impacts. 3. Describe proposed measures to reduce or control noise impacts, if any. The following measures can be implemented to mitigate noise impacts: - Limiting construction of the various project elements to the hours of 7:00 a.m. to 7:00 p.m. on weekdays; a. What is the current use of the sites adjacent to the property? Tukwila TrunX The proposed Avenue S., - Use of properly sized and maintained mufflers and use of engine intake silencers and engine enclosures where possible; - Turning off equipment when not in use; - Locating stationary construction equipment away from sensitive receiving properties where possible; - Shielding particularly noisy equipment by temporary attenuation barriers; and - Substituting hydraulic or electric models for impact tools such as jack hammers, rock drills and pavement breakers. Tukwila Trunk parallels Interurban passing through commercial /light 35 industrial, .residential .and recreational areas. North of I -5, the alignment is characterized by commercial /light industrial uses. There are two large office parks (Tukwila Business Park, Gateway Corporate Center) and several gas stations /truck stops. South of I -5, the new Tukwila Trunk alignment will continue south within the City Light right -of -way between Foster Golf Links, a 71 -acre golf course and Interurban Avenue S. The trunk will terminate at the new pumping station at the south end of the golf course. In addition to the golf course, nearby land uses include an apartment complex and commercial /light industrial uses. Interurban Pumping Station The pumping station site is Interurban Avenue S. at the Golf Links (south side of S. proposed pumping station undeveloped. Adjacent land Gplf Links and the City of shops to the east. Forcemain located adjacent to south end of Foster 139th Street). The site is currently uses include Foster Tukwila maintenance There are two alternative routes for the 20 -inch forcemain from the new Interurban Pumping Station to the Metro treatment plant at Renton. Forcemain Alternative A passes through areas characterized by recreational (Foster Golf Links / Fort Dent Park), transportation (Burlington Northern / Union Pacific rail lines), industrial (quarry) and utility (Metro treatment plant at Renton) uses. Similarly, Forcemain Alternative B passes through areas characterized by recreational (Fort Dent Park), transportation (Burlington Northern / Union Pacific rail lines), commercial / industrial (various) and utility (Metro treatment plant at Renton) land uses. b. Has the site been used for agriculture? If so, describe. Historically, the project site may have been used for agriculture. However, the pumping station site 36 • and Tukwila Trunk and forcemain alignments will be constructed in areas which are already developed. c. Describe any structures on the site. The Tukwila Trunk and forcemain alignments will be constructed almost entirely in private and public rights -of -way. Structures along the alignments are limited to utility facilities, paved roadways, curbs and sidewalks. The pumping station site is currently undeveloped. d. Will any structures be demolished? If so, what? The existing Interurban Pumping Station, located on the west side of Interurban Avenue S. across from Foster Golf Links, will be removed. e. What is the current zoning classification of the site? Tukwila Trunk The entire corridor for the Tukwila Trunk is located within the City of Tukwila. North of 1 -5, zoning is "M -1 Light Industry ". The M -1 district is intended: "... to provide area for light industrial uses which are non - nuisance activities in terms of air and water pollution, noise, vibration, glare and odor." (City of Tukwila, 1982). The Foster Golf Links adjacent to Interurban Avenue S., south of I -5 is zoned "R -A Agricultural." This zoning designation is intended: "...to preserve and protect existing agricultural lands and uses; and to preserve agricultural land which may be suited to eventual development to other more intensive urban uses." (City of Tukwila, 1982.) The golf course is a conditional use under this designation. 37 Forcemain The Tukwila Trunk corridor south of I -5 lies within the "Interurban Special Review District ". This district has been established because of " ...its unique physiography, the presence of natural amenities and recreational facilities, the historical relevance of the area to the community and the contemplated future mix of residential, commercial, industrial, and public land uses... "(City of Tukwila, 1982). Any development in the district, with the exception of single family dwellings, must be reviewed and approved by the Board of Architectural Review. Interurban Pumping Station Zoning is "M -1 Light Industrial" at the pumping station site. The purposes of this zoning designation is as described above for the Tukwila Trunk. The pumping station site also lies within the "Interurban Special Review District" (See above.). The alternative forcemain alignments lie within the Cities of Tukwila and Renton. City of Tukwila zoning along Interurban Avenue S. is "M -1 Light Industry "; zoning in Fort Dent Park is "R -A Agricultural." Descriptions of uses permitted under these designations have been described previously for the Tukwila Trunk. Much of the forcemain lies within they City of Tukwila's. "Interurban Special Review District." Any development in the . the exception of single family dwellings, must be reviewed and approved by the Board of', Architectural :.Review. The section of the forcemain that follows the Burlington Northern / Union Pacific rail lines (east side) to the Black River is located in the City of Renton. The current zoning designations for this area are "L -1 Light Industrial" and "M -P Manufacturing Park." The purpose of L -1 zoning is "... to provide areas for low intensity, non - nuisance generating in terms of odor, air and water pollution, noise, vibration and glare, industrial activities." (City of Renton, undated). The purpose of M -P zoning is "...to provide for a wide variety of industrial, transportation, service and office activities wh rh meet high operational, development and environmental standards." (City of Renton, undated). f. What is the current comprehensive plan designation of the site? Tukwila Trunk The current comprehensive plan designation for the Tukwila Trunk alignment north of I -5 is light industrial and commercial. South of I -5, °` the '. comprehensive . plan designation ° is parks ° and open space, commercial and high density residential Interurban Pumping Station The comprehensive plan designations for the new Interurban Pumping Station site is light industrial. Forcemain The City of Tukwila comprehensive plan designation for the Forcemain Alternative A, on the west side of the Duwamish (Green) River is light industrial. On the east side of the river, Alternative A is located in area designated parks and open space. Sections of both forcemain alternatives (A and B) are located in the City of Renton. The alignments pass through areas designated manufacturing park /multiple option, heavy industrial and public /quasi- public. 39 g. If applicable, what is the current shoreline master program designation of the site? Tukwila Trunk Sections of the Tukwila Trunk which lie within 200 feet of the Duwamish River are subject to the provisions of the City of Tukwila Shoreline Master Plan (City of Tukwila, 1974). The extreme northern section of the Tukwila Trunk near the Val Vue Connection and a several hundred foot section just south of I -5 lie within 200 feet of the Duwamish River. The City of Tukwila shoreline master program designation for the Green /Duwamish River is "Urban Environment" (City of Tukwila, 1974). Interurban Pumping Station The Interurban Pumping Station site is more than 200 feet from the River and is consequently not subject to the provisions of the city's shoreline plan. Forcemain Sections of the alternative forcemain alignments lie within 200 feet of the Duwamish River and are designated "Urban Environment" by the Tukwila shoreline plan. These include the existing Foster Golf Course bridge and the proposed Fort Dent Park bridge and their respective approaches. The Black River in the City of Renton is designated "natural" under the City of Renton Shoreline Master Program (City of Renton, 1985). A section of the Green River shoreline immediately southeast of Fort Dent Park is designated "urban." h. Has any part of the site been classified as an "environmentally sensitive" area? If so, specify. The Tukwila Trunk corridor lies within the "Interurban Special Review District." Any development in the district, with the exception of single family dwellings, must be reviewed and approved by the Board of Architectural Review. In addition, the Green River has been designated a "shoreline of statewide significance." 40 i. Approximately how many people would reside or work in the completed project? Interurban Sewer System improvements will not require the presence of permanent staff. Metro of iA staff will visit the pumping station several times each week for operation and maintenance purposes. Uk Pump repair and /or station refurbishment will require maintenance staff to work on the pumping station for several weeks every three to five years. j. Approximately how many people would the completed project displace? The proposed project will not displace any people. k. Describe proposed measures to avoid or reduce displacement impacts, if any. Not applicable. 1. Describe proposed measures to ensure the proposal is compatible with existing and projected land uses and plans, if any. The Tukwila zoning code does not explicitly prohibit or permit pipeline or pumping station within any particular zoning area. The proposed Tukwila Trunk could be considered an "unclassified use" defined as: ... unusual, large - scale, unique or special form as to make impractical their being included automatically in any class of use as set forth in the various use districts previously defined." Construction of the Tukwila Trunk, new Interurban Pumping Station and Interurban forcemain will require Interurban Avenue Special Review District review and approval. Review ensures the proposal is compatible with and sensitive to existing amenities and land uses. The trunk and forcemain will not change land use within or adjacent to the proposed pipeline corridor. 41 Following construction, the Tukwila Trunk and forcemain corridors will be landscaped to achieve compatibility with the adjacent land uses. Construction adjacent to the golf course will require Interurban Special Review District review and approval. Following construction, the site will be landscaped to achieve compatibility with the adjacent golf course and the Green River Trail along Interurban Avenue S. 9. Housing a. Approximately how many units would be provided, if any? Indicate whether high, middle, or low - income housing. The implementation of this project will neither add new housing nor eliminate existing housing. b. Approximately how many units, if any, would be eliminated? Indicate whether high, middle, or low - income housing. Not applicable. c. Describe proposed measures to reduce or control housing impacts, if any. Not applicable. 10. Aesthetics a. What is the tallest height of any of the proposed structure(s), not including antennas? What is the principal exterior building material(s) proposed? The new Interurban Pumping Station will average 14 feet in height; maximum height above grade will be 16 feet. The odor scrubber vent will be 8 to 10 feet above grade. The principle exterior building material will be concrete or CMU construction. The pumping station will incorporate a public art element, probably on the west side of the structure where it will be visible from Interurban Avenue S. and the pedestrian / bicycle path. 42 x b. What views in the immediate vicinity world be altered or obstructed? c. No long term adverse impact on views will result from implementation of the proposal. The pumping station will alter views from the Foster Golf Links to the industrial / commercial areas to the south, however, the new station can be expected to improve the appearance of this currently undeveloped area. Views from Interurban Avenue S. will be altered, as the pumping station structure replaces undeveloped commercial / industrial areas, however, the new pumping station will be designed to be compatible with existing and proposed uses of the immediate area. The Tukwila Trunk and Interurban forcemain will be underground except for the river crossings at Foster Golf Links and the Black River (Forcemain Alternative A) or Fort Dent Park (Forcemain Alternative B). At these locations, the 20 -inch forcemain will be visible from the bridge approaches and the river itself. The pipeline will be designed to be as unobtrusive as possible. The . design .. of the : golf course footbridge crossing and:., the Fort, Dent `:'Park pipebridge''crossing :must.; be reviewed and approved by the City of °'. Tukwila . under provisions of the : Interurban:. Special .::Review ;•.: District. Describe impacts, Tukwila Trunk proposed measures to reduce aesthetic if any. The proposed Tukwila Trunk will not change land use within or adjacent to the proposed pipeline corridor. The right -of -way is already in use by a similar facility, the Renton Effluent Transfer System (ETS). Following construction, the Tukwila Trunk corridor will be landscaped to achieve compatibility with adjacent land uses, including business parks, Foster Golf Links and the Green River Trail along Interurban Avenue S. Interurban Pupping Station Construction at the pumping station site adjacent to the golf course will require Interurban Special 43 Review District review and approval. Review ensures the proposal is compatible with and sensitive to existing amenities and land uses. Following construction, the pumping station site will be landscaped to achieve compatibility with the adjacent golf course and the Green River Trail along Interurban Avenue S. Public art will be incorporated into the design of r� the pumping station. This will be oriented toward bicyclists and pedestrians using the trail along Interurban Avenue S. Forcemain The proposed forcemain will not significantly change land use within or adjacent to the proposed pipeline corridor. The most significant change will be the river crossing at the existing Foster Golf Course footbridge or the new pipebridge / footbridge.. at Fort' Dent Parka Design of either of these crossings will require .review and design approval by the City of Tukwila. Following construction, the forcemain corridor will be restored (i.e. replanted, repaved) to achieve compatibility with adjacent land uses including the golf course, the Green River Trail and /or Fort Dent Park. 11. Light and Glare a. What type of light and glare will the proposal produce? What time of day would it mainly occur? Construction is expected to occur during daylight hours, typically between 7:00 a.m. and 7:00 p.m. During late fall and early winter when days are short, some temporary lighting may be used briefly in the early morning or late afternoon. No large scale lighting is anticipated. Over the long -term, the completed project will not produce any light or glare. Exterior lighting of the pumping station will be subdued and limited to that required for security purposes. 44 45 b. Could light or glare from the finished project be a safety hazard or interfere with views? The completed pumping station is not expected to produce light or glare which could be a safety hazard, nor will it interfere with views. c. What existing off -site sources of light or glare may affect your proposal? There are no off -site sources of light or glare which might affect the project. d. Describe the proposed measures to reduce or control light and glare impacts, if any. The completed pumping station will utilize subdued exterior lighting as needed for security purposes. 12. Recreation a. What designated and informal recreational opportunities are in the immediate vicinity? Foster Golf Links, the Green River Trail, and Fort Dent Park are the major designated recreational opportunities in the area. The Duwamish /Green River is the major informal recreational resource in the area. Foster Golf Links is a 71 -acre golf course located between Interurban Avenue S. and the Duwamish (Green) River. The golf course lies on both sides of the Duwamish /Green river; the east and west sides are connected by a footbridge. A completed section of the Green River Trail runs along Foster Golf Links to S. 139th Street. The trail is designed for bikes and pedestrians. Another trail segment, from S. 141st Street to Fort Dent Park's entrance, is now being designed. Fort Dent Parr is a large athletic park owned and operated by King County Natural Resources and Parks Division. The park is bounded on the north, west and south by the Duwamish -Green River and by Burlington Northern / Union Pacific rail lines on the east. The park has softball and soccer fields, large grassy areas, children's play areas, picnic tables and restroom facilities. There is a large pond at the park's eastern edge near the rail line embankment. The proposed Black River Trail, part of the City of Renton's Regional Trails Master Plan, is intended to link Fort Dent Park, the Black River Forest and the Empire Ridge Trail. b. Would the proposed project displace any existing recreational uses? If so, describe. Tukwila Trunk and Interurban Pumping Station South of 1 -5, the trunk will be constructed between Interurban Avenue S. and the golf course. Construction activities at the southeast end of the golf course will include the pumping station and sections of the Tukwila Trunk and forcemain. Construction - related traffic, noise, odor and dust may temporarily affect Foster Golf Links users to some degree. At the same time, existing noise levels on the course are relatively high because of the proximity of the course to the railroad, Interurban Avenue S., the Boeing Field flightpath and I -5. Construction along the sidewalk may displace Green River Trail users. Pedestrian and bicycle traffic will be detoured around construction. Forcemain Alternative A involves construction of an 20 -inch pipeline east from the new pumping station, parallel with the existing ETS line, through Foster Golf Links, over the golf course footbridge to the Burlington Northern / Union Pacific rail lines. This alternative will disrupt the southern end of Foster Golf Links, specifically the two holes (Nos. 11 and 16) located on either side of the footbridge and the four holes (Nos. 12 through 15) located south of the footbridge. Construction- related noise, dust, odors and traffic will disrupt golf course users. The extent and magnitude of this disruption will depend on the actual pipeline alignment, the duration of construction and the time of year construction occurs. Construction of the section of forcemain which will be routed through the golf course is expected to occur during the period February 1 through March 15. This is a period when golf course usage is comparatively low. Use of the existing footbridge by golfers will be maintained throughout the construction period. 46 In Fort Dent Park, construction - related noise, dust, odors and traffic will disrupt weekday park activities on the athletic fields and other park areas. Specific park areas affected may include the softball fields at the north end of the park; the large pond and trail in the east central part of the park; and the eastern end of the soccer stadium. The level of disruption will depend on the duration of construction and the time of year construction occurs. It is expected that construction within the park will take from two to three months. It is likely that construction will occur during the period April through October. Forcemain Alternative B involves routing the forcemain from the new Interurban Pumping Station site south parallel to Interurban Avenue S. to near S. 149th Street, then east to the Duwamish River. A section of the Green River Trail from S. 141st Street to Fort Dent Park's entrance is now being designed. Depending on when construction of this trail section occurs, users may be disrupted during construction of the forcemain. Once in Fort Dent Park, the forcemain will continue east across a large playing field to the main access road. From there it runs south to a location near the park entrance, where it turns east to the Burlington Northern / Union Pacific right -of -way in the southeast corner of the park. Route selection through the park has been designed to minimize disruption of park activities, however, some disruption is likely to• occur, especially in the west central portion of the park and along the access road and parking areas. Vehicle and pedestrian circulation within the park will be maintained at all times. Construction will typically occur during daytime hours on weekdays. No construction is likely to occur during peak use periods (i.e. weekends). No long term disruption of recreational opportunities will result from implementation of the project. 47 c. Describe proposed measures to reduce or control impacts on recreation, including recreational opportunities to be provided by the project or applicant. Proposed measures to reduce or control the project's short -term construction - related impacts on recreation may include the following: - minimizing the size of disturbed areas along the pipeline corridors and at the new pumping station site; - minimizing excavation and other earthwork within shoreline zones; - restoring disturbed areas (i.e. replanting, repaving) as soon as practical after construction has been completed; - scheduling construction in recreation areas (i.e. Foster Golf Links, Fort Dent Park) for non -peak use periods; - maintaining access to recreational areas at all times; and - rerouting pedestrian and bicycle traffic around construction sites using temporary fences and signs. 13. Historic and Cultural Preservation a. Are there any places or objects listed on or eligible for national, state, or local preservation registers known to be on or next to the site? If so, generally describe. Investigations associated with Metro's Renton ETS and Metro treatment plant at Renton - Phase III Expansion (Municipality of Metropolitan Seattle, 1984, 1991) projects identified several prehistoric sites in the Duwamish Valley. One of these, Site 45KI267, is on a small hill northwest of the Metro treatment plant at Renton. Cobble tools and siltstone flakes and chunks were recovered which appeared to be derived from an Olcott occupation that dates 4,000 to 8,000 years ago. The site is not eligible for the National Register of Historic Places because of disturbance to the site. The 48 site is located in the proposal's general vicinity but not in or immediately adjacent to any of the proposed forcemain alignments. A large portion of the proposed Tukwila Trunk and Interurban forcemain corridors was surveyed for cultural resources prior to construction of the Renton ETS pipeline. Based on the results of that investigation, it is unlikely that cultural artifacts are present where the trunk sewer and forcemain lie adjacent to the Renton ETS pipeline. b. Generally describe any landmarks or evidence of historic, archeological, scientific, or cultural importance known to be on or next to the site. The Duwamish Tribe occupied the Duwamish and Black River Valleys and the lower portions of the Cedar and White (Green) River Valleys. Extended villages or bands occupied specific locations along the rivers, selected for their importance for fishing and hunting. The confluence of the Black / Duwamish / White (Green) Rivers was one such location, called "Mox La Push," a Chinook word meaning "two mouths." The Duwamish villages Sq"a'lgo, S'quli'ls, and Tau we'dits were located near the confluence of the rivers. There are also a number of locations with religious significance for the Duwamish Tribe. The knoll north of the Metro treatment plant at Renton, referred to as "swa'wa tix t d," is significant in terms of Duwamish mythology. It is possible that the hill was used for ceremonies and burials (Municipality of Metropolitan Seattle, 1991). The City of Tukwila Comprehensive Plan (1982) provides a map of historic sites. The map depicts areas and sites which are relevant to the city's history. The following sites are located adjacent to the proposed project: Tukwila Trunk S' a Explanation Puget Sound Also called the "Interurban", E l e c t r i c the PSER was the region's first Railroad mass transit system. The system operated from 1902 to 1928. 49 Footbridge at 56th Avenue S. Bridge at 56th Avenue S.* Historic boat landing at 56th Avenue S . bridge. A small c o n c r e t e memorial marker marks the site.* Forcemain Historic boat landing, just north of S. 144th Street Fort Dent Historic boat l a n d i n g , adjacent to Fort Dent Park Ball Fields. A small c o n c r e t e memorial marker marks the site.* Black River Interurban The first road Avenue S. and Seattle. Bridge Bulkhead Capsule 1985 indicating the artifacts in the linking Tacoma reads, "Time ", possibly placement of bulkhead. "Foster Landing at Foster Homestead" commemorating the flat bottom boats that sailed between the Duwamish -Green and Black Rivers between 1854 and 1886. A Tukwila boat landing site once used by small steamers traveling the Duwamish -Green River. Site of a blockhouse built during. the Indian wars, 1855- 1858. Commemorates the flat bottom boats that went between the Duwamish -Green and Black Rivers between 1854 and 1886. The Black River drained Lake Washington before the lake was lowered in 1916. * Identified during field observations and not identified on Tukwila's historic sites map. 51 c. Describe proposed measures to reduce or control impacts, if any. If historical or archeological artifacts are uncovered at any of the proposed construction sites, construction will cease and the Ste Office of Archeology and Historic Preservatio ediately 4 contacted to determine the importance of the artifacts. Additionally, the Muckleshoot tribe will be contacted to assist in the determination of the importance of any such artifacts. 14. Transportation a. Identify public streets and highways serving the site, and describe proposed access to the existing street system. Show on site plans, if any. Major highways in the project vicinity include I -5, SR 599, and 1 -405. Arterials serving the general project vicinity include Interurban Avenue S., East Marginal Way S., S.W. Grady Way and Empire Way S. Access to Interurban Avenue S. and East Marginal Way S. is provided by I -5 and SR -599. Access to S.W. Grady Way is provided by I -405 or Interurban Avenue S. Construction vehicles will access the Tukwila Trunk alignment via Interurban Avenue S. The proposed Interurban Pumping Station will be accessed via Inte`rurban S. and S. 139th Street. Access to forcemain segments on the west side of the Duwamish River is provided via Interurban Avenue S., S. 139th Street, and the entrance road to Fort Dent Park. On the east side of the rail lines, access to forcemain segments is provided via Monster Road •S.W., Beacon Coal Mine Road, 68th Avenue S. and Oaksdale Avenue S.W. b. Is the site currently served by public transit? If not, what is the approximate distance to the nearest transit stop? Metro's Tukwila Park - and -Ride facility is located at Interurban Avenue S. and 52nd Avenue S. Seven transit routes serve the Park - and -Ride daily. Interurban Avenue S. is a "main transit street." Transit stops are located on both sides of Interurban Avenue S. from the Park - and -Ride lot to I -405. There is no transit service on Monster Road S.W. or Oaksdale Avenue S.W. on the east side of the Duwamish River. c. How many parking spaces would the completed project have? How many would the project eliminate? Implementation of the proposal will not eliminate parking spaces. The Interurban Pumping Station will be designed with 3 to 4 parking spaces for maintenance vehicles. During construction, worker vehicles and construction equipment will be parked on construction sites or in designated parking areas. Existing parking areas in commercial or industrial areas will not be used by construction workers or visitors. In Fort Dent Park, construction workers will use designated parking areas only; these may include'small portions of existing parking areas within the park. Existing parking areas at the treatment plant will not be used by construction workers, nor is any loss of existing parking anticipated during construction of the forcemain. d. Will the proposal require any new roads or streets, or improvements to existing roads or streets, not including driveways? If so, generally describe. The proposal may involve improvements to the proposed pumping station site's access road (S. 139th Street). This is an unimproved two -lane road east of Interurban Avenue S. and is currently used for access for golf course maintenance. e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation? If so, generally describe. Neither the proposed Tukwila Trunk nor the Interurban Pumping Station will be constructed in the immediate vicinity of water, rail, or air transportation. Forcemain alternatives, however, involve a number of river and rail crossings. Forcemain Alternative A involves river crossings of the Duwamish (Green) River near S. 139th Street and a Black River crossing just east of the BNRR right - of -way. Forcemain Alternative B involves a crossing of the Duwamish (Green) River near the south end of Fort Dent Park. Each of these proposed crossings will be bridge structures. 52 Neither the Duwamish (Green) nor the Black Rivers support water transportation in this area although recreational boating may occur periodically in the Duwamish (Green) River. Any construction involving floating construction equipment will be scheduled so as not to interfere with any treaty protected fishery which may occur in the Duwamish (Green) River or the Black River. If Forcemain Alternative A is selected, the forcemain will be jacked under the Burlington Northern / Union Pacific rail lines at three locations: a) near the southeast end of Foster Golf Links, b) just south of the Black River, and c) at the southeast corner of Fort Dent Park. If Forcemain Alternative B is chosen, the forcemain will be jacked under the rail lines at the southeast corner of Fort Dent Park. Jacking techniques have been chosen in order to avoid any disruption of rail traffic along these rail lines. Construction activities' are not expected to affect any rail operations in this area. f. How many vehicular trips per day would be generated by the completed project? If known, indicate when peak volumes would occur. Tukwila Trunk Once operation of the new Tukwila Trunk is initiated, there will be only occasional vehicle trips for inspection and maintenance purposes. Construction of the new Tukwila Trunk is expected to take about 6 months. It is estimated that about 50 feet of pipeline can be installed each working day. Heavy trucks will haul excavated material (17,000 cubic yards) from the pipeline alignment and haul bedding and fill material (17,000 cubic yards), pipe and ancillary equipment to the construction sites. This will amount to an average of about 60 one -way haul truck trips per day over the course of the construction period. Construction workers are expected to number from 6 to 12 at any given time. Construction workers are expected to drive private vehicles to the project site, generating an additional 12 to 24 one -way trips each day. Parking areas for construction workers will be established within the construction corridor in order to avoid use of existing parking areas used by local businesses. 53 Construction of the Tukwila Trunk will slightly increase traffic volumes on Interurban Avenue S., I -5, and to a lesser degree SR 599. Construction is expected to occur during typical daytime working hours. Nighttime or weekend work is not anticipated. Interurban Pumping Station The completed pumping station will generate an average of 5 one -way trips per week for inspection and maintenance purposes. Every 3 to 5 years when major pump repairs and /or station refurbishment occurs, there will be about 4 one -way trips per day for several weeks. It is also possible that additional trips would be necessary in the event of an emergency. All but emergency trips are likely to occur during daytime working hours. Parking for 3 to 4 vehicles will be provided at the pumping station site. Construction of the pumping station is expected to take about 18 months. Construction will generate a maximum of 60 one -way truck trips per day during the initial excavation phase (approximately 2 weeks). Following the excavation phase, construction will generate approximately 4 -6 one - way truck trips per day an occasional maximum of 20 one -way truck trips per day. The number of construction workers will range from an estimated 18 during excavation and structural work to about 6 during final construction and startup. Workers will generate up to 36 one -way trips per day during the first 3 -4 months of construction. After the first 4 months of construction, workers will generate an estimated 12 -20 one -way trips per day. A designated parking area will be established for construction worker vehicles in order to minimize disruption at the south end of the golf course. This parking area will be established in a location which will not hinder access to the south end of the golf course. Construction of the new pumping station will slightly increase traffic volumes on Interurban Avenue S., I -5, and to a lesser degree I -405 and Grady Way S.W. Construction is expected to occur during typical daytime working hours. Nighttime or weekend work is not anticpated. 54 55 Forcemain After the forcemain becomes operational, there will be occasional vehicle trips to various locations along the alignment for purposes of inspection and maintenance. Construction of the forcemain is expected to take about 4 months. As with the Tukwila Trunk, heavy trucks will haul excavated material (3,500 cubic yards) from the pipeline alignment and haul bedding and fill material (3,500 cubic yards), pipe and ancillary equipment to the construction sites. This will generate a daily average of about 12 one - way trips over the course of construction. As with the Tukwila Trunk, construction workers are expected to number from 6 to 12 at any given time. Construction workers are expected to drive private vehicles to the project site, generating an additional 12 to 24 one -way trips each day. Along the construction corridor, designated parking areas for construction worker vehicles will be established in order to minimize congestion and parking problems for local business establishments and recreational facilities (i.e. Foster Golf Links, Fort Dent Park). During construction through the golf course, workers will be required to park vehicles in designated parking areas near the new pumping station. During construction in Fort Dent Park, a portion of the existing parking facilities will be designated for construction worker use. Construction of the new forcemain will slightly increase traffic volumes on Interurban Avenue S., the Fort Dent Park access road, I -5, Monster Road S.W. and, if Forcemain Alternative A is selected, Beacon Coal Mine Road, 68th Avenue S., Oakesdale Avenue S.W. and S.W. Grady Way. Construction is expected to occur during typical daytime working hours. Nighttime or weekend work is not anticpated. The new forcemain will cross Monster Road S.W. and enter the Metro treatment plant at Renton near the main entrance gate. There is some potential for traffic disruption in this area during construction because of the vehicles entering and leaving the plant during daytime hours. The forcemain will be installed in the area using open cut methods. It is expected that the forcemain can be installed across Monster Road S.W. and the treatment plant entrance road in a period of several days. Traffic controls will be implemented to ensure that access to the plant is maintained at all times and that any disruption of traffic is kept to a minimum. There is some potential for cumulative traffic impacts at Metro's treatment plant at Renton if construction schedules for the Interurban project and proposed treatment plant improvements coincide. (Refer to Draft Supplemental Environmental Impact Statement: Metro Treatment Plant at Renton. Phase III Enlargement (Metro, 1991) for a detailed discussion of traffic impacts associated with the plant expansion.) g. Describe proposed measures to reduce or control transportation impacts, if any. Mitigation measures intended to reduce transportation impacts include the following: - minimizing delivery or removal of materials during peak traffic hours; - using flaggers to direct traffic at construction sites as necessary; - locating worker parking within the construction zone or in specially - designated areas; maintaining access to businesses and recreational facilities at all times; minimizing the width of the construction zone; - mimimizing open trench lengths and the amount of time trenches are left open; - jacking the pipeline under I -5 and under rail lines in order to avoid disruption of surface and rail traffic; - locating jacking pits outside access ramps to and from I -5 in order to minmize congestion at these locations; and 56 15•. Public Services - establishing a designated haul route within Fort Dent Park to minimize potential conflicts with park users. a. Would the project result in an increased need for public services (for example: fire protection, police protection, health care, schools, other)? If so, generally explain. Implementation of this project will not increase the need for public services. The project will improve sanitary sewer service in the City of Tukwila and will result in the more efficient conveyance of flows from the Val Vue Sewer District to the Metro system. The frequency of overflows to the Duwamish River is expected to decrease as the capacity of the Tukwila Trunk is increased. b. Describe proposed measures to reduce or control direct impacts on public services. Measures to reduce or control impacts on public services will not be necessary. 16. Utilities a. Circle utilities currently available at the site: Electricity, natural gas, water, refuse service, telephone, sanitary sewer, septic systems, other All of the above underlined utilities are available in the vicinity of the pumping station and forcemain alternatives. b. Describe the utilities that are proposed for the project, the utility providing the service, and the general construction activities on the site or in the immediate vicinity which might be needed. The new Interurban Pumping Station will utilize electrical energy to convey wastewater through the forcemain to the Metro treatment plant at Renton. An uninterruptible power supply will be provided to maintain power to pumping station instrumentation and controls. Puget Sound Power and Light Company will provide electrical service. The pumping station will also be equipped with exterior electrical service plug receptacle to 57 • C. SIGNATURE allow connection to a portable electrical generator. A second backup power source may be provided. Water, sewer, and telephone services will also be provided at the new pumping station. Electrical power will also be required to power the odor control unit located at the new pipebridge crossings at the Black River (Forcemain Alternative A) and at the south end of Fort Dent Park (Forcemain Alternative B). The above answers are true and complete to the best of my knowledge. I understand that the lead agency is relying on them to make its decision. Signature: Date Submitted: dreph, 58 REFERENCES Golder Associates, Inc. "Preliminary Geotechnical Study: Tukwila Trunk Sewer Rehabilitation Project, Tukwila, Washington." Prepared for Municipality of Metropolitan Seattle. July 1990. Municipality of Metropolitan Seattle, Environmental Analysis - Task 390, Alki Transfer - CSO Control Facilities Project, Seattle, Washington. 1990. Municipality of Metropolitan Seattle, Final Plan for Secondary Treatment Facilities - Volume II. Plan for Secondary Treatment Facilities and Combined Sewer Overflow Control, Seattle, Washington, 1985. Municipality of Metropolitan Seattle, Facilities Plan for Alki Transfer - CSO Control Facilities Project, Seattle, Washington, 1990. Municipality of Metropolitan Seattle, Predesign Report for Alki Transfer - CSO Control Facilities Project, Seattle, Washington, 1990. Municipality of Metropolitan Seattle, Draft Supplemental Environmental Impact Statement: Metro Treatment Plant at Renton - Phase III Enlargement, Seattle, Washington, 1991. City of Renton. City of Renton: Comprehensive Plan (Compendium). Policy Development Department, Renton, Washington. March 1986. City of Renton. "Land Clearing and Tree Cutting Ordinance." Ordinance No. 4219, Renton, Washington. June 1989. City of Renton . Shoreline Master Program: City of Renton. Ordinance No. 3758 as amended. Renton, Washington. December 1983. City. of Renton Planning Department and Northwest Environmental Consultants, Inc. City of Renton Wetlands Study: A Reconnaissance Study of Selected Wetlands in the City of Renton. Renton, Washington. February 1981. 24 p. Shapiro and Associates, Inc. "Wetland Delineation of the Container Corporation of America Site, Renton, Washington," Prepared for Bruce Blume and Company, Seattle, Washington. June 1989. 26 p. City of Tukwila. City of Tukwila: Water Resource Rating and Buffer Recommendations. Prepared by Jones and Stokes, Associates, Inc., Tukwila, Washington. May 1990. 59 JP City of Tukwila. City of Tukwila: Shoreline Master Plan. Prepared for City of Tukwila Planning Department by Jones & Jones, Consultants. Ordinance #898 as amended. Tukwila, Washington. June 1974. City of Tukwila. The Tukwila Zoning Code. City of Tukwila Planning Department, Tukwila, Washington. Undated. City of Tukwila. City of Tukwila: Comprehensive Land Use Policy Plan. Planning Division, Department of Community Development. Ordinance #1246. Tukwila, Washington. March 1982. Community and Parks Committee Monday, July 8, 1991 Present: Clarence Moriwaki, Dennis Robertson Ross Earnst, Don Williams, John McFarland, Lynn DeVoir, Lucy Lauterbach, Sheldon Teal, Jim Blazier, Jacqueline Roswell, Mary Lunt Agenda item: Metro Easement Metro explained they need to replace an existing sewer line to increase capacity and replace a failing line. They need to build a new line from the bridge at 42nd to the treatment plant going along the bike trail and through the golf course. They'll need a sewer line easement from the City for the work on the golf course. Work in constructing across the golf course will be done in February -March of 1993. As the line down Interurban is in the City Light right of way, it should not affect City streets. Metro also talked about a sewer lift station they need to build on Interurban. This will replace the one currently across the street next to the Ivy Hills apartment. The committee got into the design of the station, and whether it should be moved back further from the street or nearer the Volvo White building. The station will be 12' high in the front, and 16' high in the back. It requires space for container trucks which deliver chemicals to it. The committee expressed concerns that the :.building ::should be ,attractive, and should ° :be: screened from the street and golf `` course.:= The issue of noise from the station was discussed as a possible concern. The committee left negotiations about the station to the staff, but only after making clear it was their strong preference the station be a .visual:. amenity to the trail and to Interurban` Ave.`` Refer to staff: reschedule. /111 6- ! AC) 0ta4 t rL 1= =°=11111lidi111111111111 '1====Ii!IIII 11111111 "11111 �I■ 1■ if I1== 1€11V11111 II 1== €=14111111 InIIII A • 6 14 4 4 4 Nt REV1S10“ • VS DATE HDR Engineering, Inc. And Associated Finns • • 1. mmos Immo row az— h. AMR 1 NEI • VICINITY MAP •.•100 •La MD HS UM) dinm ••■ .13.101. W■C.• ••••••••1 •••••1 1:•••••101 • •I•1••• ••■ =NENE= O. NENE. •••• '4 • • OM Al MCC•b11}00: filliBILD.0101111011 • • Solbselw n me 2T S ic 0 Is 3• Nis lidelc KO( Wm An 4,4 ZON/NCk Clninft. goal maw DIrdw) AIMS MN (00•10.* DAM 08. Odic Uppor Mar ust mg. e. Immletsts ZOO sift Lam Pk. 1UTAL 7.0lS Irbei Data 2.110 sg. issi, Pole a. 1.036 • URA!. NM IL • nis rid irixo kids so imponiew Immal Ina 1 PRELIMINARY 1 mET R 0 II6E0UIDI4 PROJECT VICINITY MAP G-1 WIT 14 or Di 101 10. • smrass..■ftmrruesossero..nsQmoasz=4*.V.WAH4AGOVZsiiirrt-f4.'421P4441 ra���od�o DEC 191 CITY 00 TUKWJVILA PLANNING . EXISTING DOUGLAS CONNECT Ni11tCOe! amptS ACCESS ROAD'-TO THE EXISTING, THIS AREA SALAL • 24' r - (25) LAUREL SHRUBS- 2 CAL. KItWKINNCK • tr O.c, C POT Engineering. Inc And Associated films • wLfOalli MAN*. gagiSt e..e pleas • saw lnrah ar/)S1B0st 0 i ... SALAL • 24' O.C.. 1 GAL MERMAN PROJECT PUMP STATION PLANTING PLAN v (22) BARBERRY, 5 GAL GLAS FlR, 10-12 EXIST GOLF LINKS ACCESS ROAD *15 VIDE (TO BE ABANDONED AT CENFIETKIY CC THE PR PROPOSED TEMP CONSTRUCTION EASEMENT BOUNDARY PROPOSED EASEMENT BOUNDARY IIPM A• I SZERESMiiin sommuranswessosmnazammsor mr:Tam7 • 111111111111111171 rime ils PATH 1=1 PROPOSED INTERURBAN AVE. ammo at MIME i SOWN R/W-- EIKE NIEN/11 COICIIETE. (11=1 WIMP OMISTRO Municipality of Metropolitan Seattle A V HDR Engineering. Inc. And Associot.d Firms arra • room r ✓ ▪ oma rum v tom EXIST 0flVIURBAN AVE. 50. R/IN FEET (r - ter) WOW, Kt INACCI-112 V CEFf OF TUKWILA PROPERTY -.T \-- - PROPOSED TEMP CERESTRUCIION EASEMENT BOUNDARY • • POMMY PROJECT SITE PLAN • 20 MOE MULE AVE RAT (TO BE VACATED)—' PROPOSED EASEMENT BOUNDARY UMITS OF TEMP CONSTRUCTION EASEMENT FOR PULP STATION GRAVEL PRELIMINARY • 4- MONK tt C301 9411 5 3 2 Ztl9LAS rift truix t4crreHa44) aksucr 4STE: PareJ16gown4 51.J REFLW75 i. YreivS 64‘44 A t-r otvis16. • • - •••■t•• • I • 13 HDR EnglneerIng. Inc. MO Associated Ferns y WEST ELEVATION OXALZ% 5 14'.1 1- 0 1 YI 11.1.11110 P-1 TurcrbLocx— mi. es =bpi. e ••■•■••1 srls V PRELIMINARY RITENURBAN PROJECT V • ,.••■•,, AZELIA LAUREL 1414411C11411C.4 • • • • _i :i • V HDR neering, Inc. MA ls&.0t lims • .�.y.ar JVA • V AV.. Io.oua tm...ot�. V SLAW SUCK OMIT FIETUEL TP. -PIO IJANCNERS w FRONT EAST ELEVATION WEST ELEVATION METAL SCREEN. PANTED IM OTE1 = A —te ::: nruriiiiiiii �i:• im nnuunnru«uum « «mu «u tiin ,«r., nnnu«nnn i�num««uumuununnuuunnu a g .. r mnu;� nn,�„nu«nnmruunn«nw««r Tr: ` . ... r,in�„i r n««ninn«n .0.•11111111111111/111 iii =i••• =i••• r uunuuuuun m.ufmanurnnnnumi YYYYYJYYY�i1fIYYYYYYYYYYYYYYYYYYYYYJi1l�YYYYYYYYYJY� s ••• .1sami lllll 111111111 ••• 111111111111111111 ta■•• AIM MN • wnunm nn umnuum ... uw m .r « «unuo um u «r ••••“.1::"'" •''''' nnr '• � ;MI i t i 'fr nu uuu' 1, Y , rn ««rnOr1«r u. uw nnn Mr n v . M r«« li0umlt �..n6. WRICX. TY►. ODOR =WOOERS UN FROM!) • METAL SCREEN FENCE. PAINTED IMNTE PRELIMINARY . E rnETR0 Yudnpart et •tropehtev S•CC. JIM' - f -0' C11 n.cr .o .OEAURINI PROJECT ELEVATIONS V '1 411192 A -1 • • A • C C 5 • 3 1 4 4 4 • V 0.-E IDR Engineering. trc. And Assonateo f+ms we 2C 65.4a frmarrn V 0.1.42 Dow 1.00 V ILLRELIMINARY 4 1 METRO mwna.ms at . .w,flItaR 3c• Ulf 311E -V PRERURBJJJ RRDJE� ELEVATIONS V SOUTH ELEVATION NORTH ELEVATION y i s 0.1992 A -2 • • • COM ,D4 Ert.n0,;ng. MO •SSCC.le1 • • 7 PRELIMINARY yCr n ETR D Yume.Wl.t) of Yelmpolasn Seaw V flfir•fifBU. BRCJCR PERSPECTIVE V �"� art *,,,, e '• a�' 4. Y. TF+ SaA (Pili�eL4Ca>N:rYt4-- .+.n.•zra'r t et, . Atitth:44 , . t ,.. tt • CI is) c 61 ; S ..I r CITY OF TUKWILA l � J 19 DEPARTMENT OF COMMUNITY DEVELOPMENT' 1. BRIEFLY DESCRIBE YOUR PROPOSAL: (Replacement Facility) of if u BOARD OF ARCHITECTURAL REVIEW DESIGL'REVIEW ►PPLICATION 6300 Southcenter Boulevard, Tukwila, WA 98188 Telephone: (206) 431 -3680 WASTEWATER PUMP STATION 2. PROJECT LOCATION: (Give street address or, if vacant, indicate lot(s), block, and sub- division; or tax lot number, access street, and nearest intersection) Interurban Ave. at Tukwila Shops (Volvo- White) Quarter: SW Section: 14 Township: 23 Range: 4 E WM (This information may be found on your tax statement) 3. APPLICANT:* Name: Municipal i y of Metropol i tan Seattle ( METRO ) A d d r e s s _ 2nd. Avenue M/S 122 Seattle, WA. 98104 -1598 Phone. 2[16 S4 MARC MI l AS Signature: a d- - a 4' 4..i Date: October 7, 1991 * The applicant is th son horn the staff will contact regarding the application, and to whom all notices and re V.., shall be sent, unless otherwise stipulated by applicant. AFFIDAVIT OF OWNERSHIP 4. PROPERTY Name: OWNER Address: Phone: I /WE,[signature(s)] swear that I /we are the owner(s) or contract purchaser(s) of the property involved in this application and that the foregoing statements and answers contained in this application are true and correct to the best of my /our knowledge and belief. Date: BOARD OF ARCHITECTURAL REVIEW DESIGN REVIEW APPLICATION enhance the street front. CRITERIA Page 2 The following criteria will be used by the BAR in its decision - making on your proposed project. Please carefully review the criteria, respond to each criterion (if appropriate), and describe how your plans and elevations meet the criteria. If the space provided for response is insufficient, attach additional response to this form. 1. RELATIONSHIP OF STRUCTURE TO SITE A. The site should be planned to accomplish a desirable transition with the streetscape and to provide for adequate landscaping, and pedestrian movement. 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 it site. RESPONSE: A. The building is located adjacent and parallel to Interurban Ave. to permit pedestrian and bicycle access. Street trees and a grove of cherry trees B. Service areas are located behind the building and screen walls which extend in both directions parallel to the street. The sides and the back of the site are bermed and planted. C. The building maintains a one -story apparent height as much of the structure is buried or is below the public plaza. 2. RELATIONSHIP OF STRUCTURE AND SITE TO ADJOINING AREA A. Harmony in texture, lines, and masses is encouraged. B. Appropriate landscape transition to adjoining properties should be provided. C. Public buildings and structures should be consistent with the established neighborhood character. D. Compatibility of vehicular pedestrian circulation patterns and loading facilities in terms of safety, efficiency and convenience should be encouraged. E. Compatibility of on -sith vehicular circulation with street circulation should be encouraged. RESPONSE: A. The only nearby building is the Tukwila Shops building which has little design significance. This building is smaller. B. The perimeter of the site is landscaped. Special consideration is given to transition to the golf course. C. The Shops building has metal siding. This is reflected in the pump station elevations facing this building only. D. The future sidewalk and bike trail have been integrated with the site, public plaza and art project. Service and operation areas are located away from public areas. E. On-site vehicle circulation is by operators only and is intermittent. BOARD OF ARCHITECTURAL REVIEW DESIGN REVIEW APPL( 4TION ( Page 3 4. 3. LANDSCAPE AND SITE TREATMENT A. Where existing topographic patterns contribute to beauty and utility of a development, they should be recognized and 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 encour- aged. . F. Screening of service yards, and other places which tend to be unsightly, should be accom- plished by use of walls, fencing, planting or combinations of these. Screening should be effective in winter and summer. G. In areas where general planting will not prosper, other materials such as fences, walls, and pavings of wood, brick, stone, or gravel may be used. H. Exterior lighting, when used, should enhance the building design and the adjoining land- scape. 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. RESPONSE: A. Site grading will include berms to blend with the golf course system of berms. B. Gently sloping lawns, ramps and stairs are designed for safe access and a variety of seating options. C. Groves of flowering cherry trees are aligned on the building and and plaza grid system. Tree colors and flower colors will accent the building and paving colors. D. Branches of trees in pedestrian corridors should be pruned to a height of 7'. A 14' clearance should be provided at vehicle access points. Reinforced lawn will accommodate vehicle loads in the turn around area. E. Trees are integrated into the plaza by the grid system layout. F. Building related screen /walls are used primarily, as are shrubs. H. Site lighting will augment building lighting and will be used at points of entry to stairs and ramps. • 4. BUILDING DESIGN A. Architectural style is not restricted, evaluation of a project should be based on quality of its design and relationship to surroundings. B. Buildings should be to appropriate scale and be in harmony with permanent neighboring de- velopments. BOARD OF ARCHITECTURAL REVIEW DESIGN REVIEW APPLI`TION in a future continuous streetscape. variations of glass block patterns. visual impact. G. (See C) Page 4 C. Building components - such as windows, doors, eaves, and parapets - should have good pro- portions and relationship to one another. Building components and ancillary parts shall be consistent with anticipated life of the 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 buildings should be screened from view. F. Exterior lighting should be part of the architectural concept. Fixtures, standards and all ex- posed accessories should be harmonious with building design. G. Monotony of design in single or multiple buildings projects should be avoided. Variety of detail, form, and siting should be used to provide visual interest. RESPONSE: A. Careful attention to materials and details define this builing as one element B. One-story building height is equal or less than neighboring buildings. C. The street front elevation is highly articulated and proportioned to encourage public access. Fenestration is maximized on this side with n'. The street front and public areas will consist of red brick, concrete, glass block and white accents. The operations side will be dark green to minimize E. A parapet shields the roof from the street and screen walls shield the operations areas and equipment. F. Nighttime lighting is primarily achieved by back - lighting the glass block. Pathway lighting at stairs and ramps only 5. MISCELLANEOUS STRUCTURES AND STREET FURNITURE A. Miscellaneous structures and street furniture should be designed to be part of the architec- tural concept of design and landscape. Materials should be compatible with buildings, scale should be appropriate, colors should be in harmony with buildings and surroundings, and proportions should be to scale. B. Lighting in connection with miscellaneous structures and street furniture should meet the guidelines applicable to site, landscape and buildings. RESPONSE: The pedestals created by the plaza grid system are the primary elements of site furniture. The pedestals can be used for seating, bike racks, or as a location for a drinking fountain. The pedestals can also house recessed lighting at entry points to the plaza. u JAM/ yr MnVnl I GV I unUL rtt V ICYV DESIGN REVIEW APITCATION INTERURBAN SPECIAL REVIEW DISTRICT Page 5 The following six criteria are used in the special review of the Interurban area in order to manage the development of this area, to upgrade its general appearance, to provide incentives for compatible uses, to recognize and to capitalize on the benefits to the area of the amenities including the Green River and nearby recreational facilities, to encourage development of more people - oriented use, and to provide for development incentives that will help to spur growth. Please describe how your proposed development relates to the goals for this District. Use additional response space, if necessary. 1. The proposed development design should be sensitive to the natural amenities of the area. The landscaping of the site reflects and extends the golf course landscaping to the north. Other landscaping shapes and defines the site and public areas. No immediate landscape features currently exist. 2. The proposed development use should demonstrate due regard for the use and enjoyment of public recrna tional areas and facilities. This project incorporates the future bike trail and sidewalk by encouraging site access and use. This building provides a rest stop and point of interest along Interurban Ave. 3. The proposed development should provide for safe and convenient on -site pedestrian circu- lation. Both stairs and ramps provide access to the plaza level and Art project location. Proximity to the street and night lighting give convenient access and safety. Also, see No.2 4. The proposed property use should be compatible with neighboring uses and complementary to the district in which it is located. The design for this building deemphasizes the operational aspects of this structure and conversely emphasizes public use and interaction along the srrePrscape_ 5. The proposed development should seek to minimize significant adverse environmental im- pacts. The site plan separates and screens the operation areas from the public areas and street front. The perimeter of the site provides a buffer to adjacent properties. Also, see No. 4. 6. The proposed development should demonstrate due regard for significant historical features in the area. Historic relationships are to be incorporated into the Art project in the public plaza area. Specific objects, text and materials for these commissions will be determined at a later time. (The Art project is subject to review by the Metro Arts Commission and the Tukwila Arts Commission.)