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Home My WebLink AboutPermit 89-01-SMP - BOEING EMPLOYEES CREDIT UNION (BECU) - SHORELINE SUBSTANTIAL DEVELOPMENT89-1-SMP 12700 GATEWAY DRIVE 12780 GATEWAY DRIVE Permit 89-01-SMP - BOEING EMPLOYEES CREDIT UNION (BECU) - SHORELINE SUBSTANTIAL DEVELOPMENT SHORELINE SUBSTANTIAL DEVELOPMENT SHORELINE MANAGEMENT August 2, 1989 Jerry Park Boeing Employees' Credit Union 7700 East Marginal Way South Seattle, WA 98108 Dear Mr. Park: During my review of the foundation application for your building, several outstanding items of concern were noted. I spoke to Mr. Rothwell regarding these items and he directed me to you on two of them. They are as follows: 1. The Board of Architectural Review conditioned their approval on coordination of vehicular movements at your joint access driveway with Buildings 7 and 2 of the Gateway complex. I received the FAX of the survey you have of the intersection. I have spoken to Bob Hart regarding the submittal of a site plan of the subject area showing signage, striping and traffic buttons. A site plan for this area demonstrating safe traffic movements must be submitted, reviewed and approved prior to issuance of your building permit. 2. The Shoreline Program policies and permit address access and recreational use along the shoreline. The conceptual plan developed by Richard Carrothers outlined a minimum area that skirts the trees that are stabilizing your riverbank and providing a significant aesthetic amenity. As you are aware the City would like to budget the design, engineering and construction of this section of trail for 1990. Enclosed is the City's standard easement dedication form. You will note that the legal description would be included as exhibit A. The easement dedication will be needed from you is prior to building permit issuance. The outstanding concern that I have spoken to Jim Rothwell about is the expansion of the drive - through teller area and the elimination of landscape separation between this area and the river environment. The strollers, joggers, bikers, etc. that use the trail would not enjoy being directly adjacent to idling cars and the business transactions of the teller facility. The landscape separation was an important element of your original plan that we do not want to see lost. Jerry Park August 2, 1989 Page 2 Yours truly, Moira Carr Bradshaw cc: Jim Bothwell Bob Hart If you have any questions regarding these comments, please feel free to call me at 433 - 1848. 3 SUBJECT ' 7L7 =O6 c-c� T 0 T x�. NITOLIA C. 1 , �.ti:1?f W;A• 'JswJ.Nwusaac.a4u4Xa.: yS�.s + Jt::}v:.wkY.ii.! :L:x YAM.. -4 �a4:G:isi:` A.A.110,7= -a MESSAGE 5/ J- SIGNED - 1) t trA.P' -U`\ Id"ti C rr carbonless 11 1 . 1 1 - 6 1 , . . 3 /4 g4 .04550i-ed DATE z a A c,1e. E w rrt4 1ZGL.0 Mwo21% Y► 04 s t+r - rt I-. PRC1 r) '1)14w S two b i TLL'P u-t�.i ot.e't -Irr(s) or.) 9 1 14E ASS A� EH trl rL` 0 _ \ NtN tW V st\LI S 'Cu - r\.1e Bf A CLk.t C vn O N "TtNtS 5+ P l N v. S a it QJ ( moh 13"( r)v) -nn\z h--01 +\._ � u \„\. n-L2,t) 14.kkY1\ Tv •tatwrrTM.. T() C'tr 7 - 13ti r rl\. 7 lit -0%M 1 cuNN`An`e OtgCUw .6V-J —ate - 11 1 .4t t PcL i t 4 fA-C P Afl ^IV *-D u ►• t..x l.L,l 1115yN. 6519 TRIP 1908 May 10, 1989 Dear Mr. Boyer: City of Tukwila FIRE DEPARTMENT 444 Andover Park East Tukwila, Washington 98188 -7661 (206) 575 -4404 Mr. Henry Boyer Richard Carothers Associates, Ltd. 814 East Pike Street Seattle, Wa. 98122 Gary L. VanDusen, Mayor RE: Geoblock fire lane for Boeing Employees Credit Union The use of " Heavy Duty Geoblock " for ten feet of the required twenty foot wide fire lane at The Boeing Employees Credit Union is acceptable with the following conditions: 1) The sub base beneath the Geoblock shall be engineered to withstand the weight of the vehicles and the impact of the ladder truck's outriggers. 2) The vehicles do not " slip " or wander while on the surface, either under load or while parked; this applies for any weather condition. 3) The fire lane is properly marked per City Ordinance # 1398. 4) The portion of the trail being used as part of the fire lane shall be paved. After the Geoblock (with lawn) is installed, we will bring our apparatus to the sight to test for stability and load handling capability. If the surface fails our testing, I reserve the right to require paving the Geoblock portion of the fire lane. If you have any questions regarding this matter, please feel free to contact me. i cere4y �Q.cJ Nick Olivas Assistant Chief/ Fire Marshal cc: Duane Griffin, Building Official March 29, 1989 Dear James, City of Tukwila PLANNING DEPARTMENT 6200 Southcenter Boulevard Tukwila, Washington 98188 (206) 433 -1849 James P. Rothwell The Callison Partnership 1423 Third Avenue Suite 300 Seattle, Washington 98101 This letter is in response to our meeting on Monday, March 27, 1989, concerning the Boeing Employee Credit Union Design Review Application. At your request, the individuals listed below will attend Monday's meeting on April 3, 1989. Don Williams, Parks & Recreation Director Ron Cameron, City Engineer Nick Olivas, Assistant Fire Chief Moira Bradshaw, Associate Planner Darren Wilson, Assistant Planner Phil Fraser, Senior Engineer In order to process the Design Review Application, please submit all revisions to the site plan, showing complete elevations, landscaping, and the colors of the materials used on the columns and the plaza. Your cooperation is greatly appreciated in resolving these matters. All material must be submitted no later than Monday, April 3, 1989, at 10:00 AM. As Moira Bradshaw mentioned to Bob Hutnik, we have been in contact with Joe Layman of Bedford Properties, regarding supplemental traffic infor- mation. Existing environmental information is not sufficient for your project or any further work at the park. If you have any questions regarding these issues we can discuss them on Monday, April 3, 1989. Thank You, Darren Wilson Assistant Planner DW:mm TYPE OF ACTION: City of Tukwila PLANNING DEPARTMENT 6200 Southcenter Boulevard Tukwila, Washington 98188 (206) 433 -1849 Shoreline Management Act of 1971 PERMIT FOR SHORELINE SUBSTANTIAL DEVELOPMENT CONDITIONAL USE OR VARIANCE Substantial Development Permit Pursuant to RCW 90.58, a permit is hereby granted to: BOEING EMPLOYEES CREDIT UNION File Number: 89 -3 -SMP Approved XX Denied Date: [I Conditional Use [[ Variance to undertake the following development (be specific): 6- STORY, 144,000 SQUARE FOOT OFFICE BLDG AND CREDIT UNION CENTER WITH DRIVE -UP UP TELLER FACILITY: SURFACE PARKING AND A ONE -LEVEL PARKING BECK TS AISf) PROPOSFD. upon the following property (legal description, i.e., section, township, range): 12780 GATEWAY DRIVE , PARCEL 3 OF TUKWILA SHORT PLAT, FORMERLY LOT 7 GATEWAY SUBDIVISION. THE PROPOSED PROJECT WILL BE WITHIN THE AREA OF THE GREEN RIVER AND ITS ASSOCIATED WETLANDS, WHICH IS A SHORELINE OF STATEWIDE SIGNIFICANCE AND IS DESIGNATED AS AN URBAN ENVIRONMENT. The following master program provisions are applicable to this development (state the Master Program sections or page numbers): (SEE ATTACHED) Development pursuant to this permit shall be undertaken pursuant to the following terms and conditions: 1. COORDINATE WITH CITY OF TUKWILA PARKS AND RECREATION DEPARTMENT ON DESIGN OF LINEAR TRAIL SYSTEM TO PROTECT EXISTING VEGETATION ALONG RTVFR FNVTRONMFNT. 2. BOARf OF ARCHTTFCTIIRAI RFVTFW Cf)NfITTONS (SFF MINUTES 5- 25 -89) This permit is granted pursuant to the Shoreline Management Act of 1971 and nothing in this permit shall excuse the applicant from compliance with any other federal, state or local statutes, ordinances or regulations applicable to this project, but not inconsistent with the Shoreline Management Act (Chapter 90.58 RCW). This permit may be rescinded pursuant to RCW 90.58.140(8) in the event the per - mittee fails to comply with the terms or conditions hereof. CONSTUCTION PURSUANT TO THIS PERMIT WILL NOT BEGIN OR IS NOT AUTHORIZED UNTIL THIRTY (30) DAYS FROM THE DATE OF FILING WITH THE DEPARTMENT OF ECOLOGY AS DEFINED IN RCW 90.58.140(6) AND WAC 173 -14 -090, OR UNTIL ALL REVIEW PROCEEDINGS INITIATED WITHIN THIRTY DAYS FROM THE DATE OF SUCH FJING HAVE TERMINATED; EXCEPT AS PROVIDED IN .n* : '40(5)(a)(b)(c). • Construction or substantial progress toward construction must begin within two years from date of issuance, per WAC 173 -14 -060. THIS SECTION FOR DEPARTMENT OF ECOLOGY USE ONLY IN REGARD TO A SUBSTANTIAL DEVELOPMENT PERMIT WITH A CONDITIONAL USE OR VARIANCE PERMIT. DATE RECEIVED BY THE DEPARTMENT : APPROVED (date): 4:: fi PERMIT FOR SHORELINE MANAGEMENT'' SUBSTANTIAL DEVELOPMENT Page 2 This conditional use /variance permit is approved /denied by the department pursuant to Chapter 90.58 RCW. Development shall be undertaken pursuant to the following additional terms and conditions: DENIED (date): anning iepartment Date (Signature of authorized Department official) cc: Applicant, File, D.O.E. (25 /SHOR.PMT) TUKWILA MASTER PROGRAM PROVISIONS OVERALL GOALS p 4.1 1. Promote reasonable and appropriate use of the shorelines which will promote and enhance public interest. 5. Maintain a high quality of environment along the shorelines of Tukwila. 6. Preserve and protect fragile natural resources and culturally significant features. CONSERVATION ELEMENT Policy 3 (p 4.7) Promote linear shoreline access, especially pedestrian and other non- motorized types, in the areas close to population centers, such areas would also serve as buffers between water and developed areas. SHORELINE USE ELEMENT Policy 3 (p 4.6) Aesthetic considerations should be encouraged when contemplating a new development or redevelopment of existing facilities or for general enhancement of shoreline areas. CIRCULATION ELEMENT Policy 2 (p 4.4) 2. Parking facilities should be located upland with provisions for adding pedestrian access to the shoreline. WAC 197 -11 -970 AMENDED MITIGATED DETERMINATION OF NONSIGNIFICANCE Description of Proposal Board of Architecture Review consideration of a 491,000 square foot mixed use office /industrial park with banking facility on a 36.62 acre site. (1985 projection of uses for park has changed; therefore an amended mitigated p(giiiiimifg DNS is issued pursuant to new traffic information). Proponent BEDFORD PROPERTIES AND BOEING EMPLOYEE CREDIT UNION Location of Proposal, including street address, if any 12644 - 12878 Interurban Avenue South and Gateway Drive Lead Agency: City of Tukwila File No. EPIC - 258 -85 The lead agency for this proposal has determined that it does not have a probable i significant adverse impact on the environment. An environmental impact statement (EIS) is not required under RCW 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. 0 There is no comment period for this DNS 1 [XEi This DNS is issued under 197 -11- 340(2). Comments must be submitted by May 25, 1989 . The lead agency will not act on this . proposal for 15 days from the date below. i' Responsible Official Rick Beeler Position /Title Planning Director Phone 433 -18461 Address 6200 Southcenter Boulevard, T 981:: Date May 10, 1989 Signature / � You may appeal this determination to the City Clerk at City Hall, 6200 Southcenter Boulevard, Tukwila, WA 98188 no later than 10 days from the above date by written L appeal stating the basis of the appeal for specific factual objections. You may be' required to bear some of the expenses for an appeal. Copies of the procedures for SEPA appeals are available with the City Clerk and Planning Department. FM.DNS ■ Amended Mitigation Measures EPIC: 258 -85 In addition to any original outstanding 1985 mitigation measures;` the following conditions are attached: 1. Fair share payment of intersection improvements in proportioi to 1990 buildout of Gateway Center traffic over existing Ma$!j 1989 traffic volumes at the following three intersections: Interurban/ I -5 Northbound ON Interurban/ SR -599 Northbound Off SR -599 Southbound Off/ 133rd 2. Intersection improvements on Gateway Drive south and Gateway!. Drive north and Interurban',Avenue to accomodate 1990 buildout traffic patterns from Center.' 3. Provide appropriate pedestrianimprovements for bus riders andi the handicapped using transit both northbound and southbound onii., Interurban Avenue S. These conditionsmust be completed or agreedto by affected parties through a developer's agreement, or other bindingagreement, prior to issuance of a building permit. REPORT Updated River Bank Stabilization Study Proposed Office Building Development Tukwila, Washington For BOEING EMPLOYEES CREDIT UNION 10863- 003 -016 April 24, 1989 DAMES &I. MOORE MAY 3 1989 DAMES Si. MOORE 500 MARKET PLACE TOWER, 2025 FIRST AVENUE, SEATTLE, WASHINGTON 98121 (206) 728-0744 Boeing Employees Credit Union 7700 East Marginal Way South Seattle, Washington 98108 Attention: Gentlemen: INTRODUCTION Mr. W. James Roller Senior Vice President April 24, 1989 Report Updated River Bank Stabilization Study Proposed Office Building Development Boeing Employees Credit Union Tukwila. Washington A P1(11 ESSI&1NAl. LIMITFI PARTNERS' III' We are pleased to present herein our report of an updated river bank stabilization study related to the proposed Boeing Employees Credit Union office building development near the Gateway Corporate Center in Tukwila, Washington. We performed a previous river bank stabilization study at the site as described in our report dated August 7, 1987, for Bedford Properties, Inc. We understand that the City of Tukwila requires an updated study in consideration of the time lapse since the previous study and the revised development plan for the site. This study encompasses about 900 lineal feet of shoreline adjacent to the planned Boeing Employees Credit Union development, which is located east of the intersection of Interurban Avenue So. and So. 133 Street in Tukwila. The study site and planned development layout is shown on the Site Plan, Plate 1. The planned development includes a 30 -foot wide river bank protection and trail easement as shown on Plate 1. We understand that the outer edge of the easement corresponds to the high water mark for the site. We further understand that a 10 -foot wide paved recreational trail will be constructed within the easement, although in one area the trail may encroach on Boeing property to avoid removal of several large trees near the top of the river bank. This study was authorized by Mr. Jim Roller on April 13, 1989, and has been performed in accordance with our proposal dated April 7, 1989. WoRuiwinr Boeing Employees Credit Union April 24, 1989 Page 2 Dames & Moore has completed several geotechnical investigations in the vicinity of the site for various proposed developments, including our most recent study for the planned Boeing Employees Credit Union development. Exploration locations are shown on Plate 1. The results of this study are described in our report dated January 18, 1989. Our understanding of the proposed site development is based on a drawing entitled "Site Plan /Vicinity Map ", dated March 6, 1989, from The Callison Partnership. We have been provided with current topographic maps of the site (drawings dated March 21, 1989, and April 10, 1989, by Townsend- Chastain & Associates). We also have a topographic survey map of the river bank areas which was completed by Wilsey & Ham, Inc. in March of 1987. The topographic maps also contain the locations of trees along the bank. SCOPE The purpose of our updated river bank stabilization study is to evaluate the extent and severity of river bank erosion along the property boundary, assess overall river bank stability, and provide appropriate recommendations for bank stabilization. This study is essentially an update of our 1987 study. Specifically, our scope of services includes: 1. Field reconnaissance of the river bank by the engineer from our staff who conducted the 1987 study. Field reconnaissance efforts included identification of the extent and general locations of erosion and bank instability, with emphasis on any changes in the river bank which have occurred since the 1987 field observations. 2. Discussions with representatives of appropriate area agencies, including the Federal Emergency Management Agency (FEMA), Washington Department of Fisheries, the U.S. Army Corps of Engineers, and King County in order to identify potential constraints associated with stabilization work in the area. 3. A written report summarizing our ifiinding) and recommendations concerning bank stability along the property boundary. FIELD RECONNAISSANCE A field reconnaissance of the river bank in the study area was conducted by Mr. Kelly Merrill of our staff on April 14, 1989. Mr. Merrill also conducted the 1987 reconnaissance of the river bank. The first task accomplished during the field program was to stake out the arbitrary stationing system that was used during the 1987 study. As shown on Plate I, Station 0+00 was established at the southern boundary of the property along the river bank, with Station 9+00 1)AmE_s & i\icuiRI: Boeing Employees Credit Union April 24, 1989 Page 3 marking the approximate northern boundary of the Boeing Employees Credit Union property. This stationing system was used only for the convenience of our field engineer, and was established by approximate methods only. Accordingly, all stationing given in this report is approximate. Once the approximate stations had been flagged, our field engineer proceeded to walk the river bank, noting bank conditions and taking photos of pertinent features. No soil samples were obtained, since our numerous geotechnical investigations on the site have provided a good understanding of local soil conditions. SITE DESCRIPTION Soil Conditions Soil conditions along the river bank and on the site itself have been extensively explored and documented in our previous studies. In summary, the surficial soils along the bank typically consist of sandy silt overlying fine sand. The sand frequently contains a significant silt content. The thickness of the sandy silt is known to vary across the site, ranging from several feet to greater than 10 feet. The sandy silt soils are typically soft to stiff, and often contain roots and organic matter. The sandy soils are generally in a loose to medium dense condition. The relatively soft and loose, fine - grained soils existing along the river bank are susceptible to erosion from wind and water forces if they are not protected. Bank Conditions Based on a comparison of bank conditions from the 1987 and 1989 studies, it does not appear that any significant changes have occurred in the river bank along the study area, although lower bank conditions could not be directly observed. High water resulting from spring runoff prevented observation or topographic measurement of bank conditions below about Elevation 6 or 7. All elevations in this report are referenced to Mean Sea Level (MSL). No significant bank erosion seems to have occurred in the observable portions of the river bank since our 1987 study. There is, however, evidence of the continued occurrence of slow, gradual erosion of the lower banks. This evidence includes the gradual undercutting of several of the trees along the bank at low elevations, resulting in increased tree lean toward the river. The gradual erosion has resulted in the undercutting and toppling of an alder tree near Station 0 +30. DAMES & M00RE Boeing Employees Credit Union April 24, 1989 Page 4 • This type of gradual erosion is to be expected, since the bank within the study area is on the outside of a river bend and the soils are susceptible to erosion as noted previously. The areas of erosion generally tend to be localized in nature on the site. We expect that this gradual erosion will continue, with the rate of erosion being largely dependent on the bank conditions. Erosion will be slow or nonexistent on heavily vegetated and /or flat slopes; erosion on steep, unprotected slopes will proceed at a greater rate. The area along the river bank with the most significant erosion problems lies between about Stations 0+00 to 4 +50. The recent and past topographic maps indicate that the slopes of the upper banks (above about Elevation 5) are generally flatter than 1.5 or 1.75 to 1. The inclinations of slopes below about Elevation 5 are known to be significantly steeper, although no recent topography could be obtained because of the spring high water. Based on the 1987 topography, the lower bank slopes between Stations 0+00 and 4 +50 range from about 0.4 to 1 to 0.75 to 1. The upper bank slopes between .Stations 0+00 and 4 +50 are typically heavily vegetated with blackberry bushes, grasses, brush, and deciduous trees. The lower bank slopes are often bare of vegetation because of frequent inundation and the erosive current forces. Near Station 2+00, a fairly large area of recent erosion had been observed in 1987 where a large tree had apparently been uprooted, resulting in a near - vertical cut bank. This area does not appear to have changed much since 1987. North of Station 4 +50, bank slopes tend to flatten and the vegetation becomes somewhat more sparse. Lower bank slopes are expected to be near 2 to 1, while upper bank slopes are inclined at 4 to 1 or flatter. Large deciduous trees are scattered over the bank and at .the top of the bank in this area. Few signs of erosion were observed in this area, with an exception being the gradual undercutting of a large alder near the river's edge near Station 6 +50. In summary, we are of the opinion that the majority of the river bank adjacent to the study area is currently stable, although some localized zones of relatively recent erosion exist which may be subject to progressive instability. The primary causes of erosion of the bank are current forces and rapid drawdown of the river. The river bank in the study area can be categorized as having a low to moderate potential for further erosion or bank instability. River Characteristics As indicated in our earlier study, the Duwamish River at the study site is beyond the upstream boundary of influence from salt water and near the upstream boundary of influence from tidal variations. River flow is expected to vary widely in the study area, from about 200 cubic feet per second (cfs) to as much as 15,000 cfs during 100-year storm conditions. Current 1):AMI.S & MO ORE Boeing Employees Credit Union April 24, 1989 Page 5 velocities are expected to range from about 2 to as much as 10 feet per second. Based on current information from FEMA, we understand that the high water mark for a 100 -year flood ranges from about Elevation 12.7 to 12.3 across the study area. FEMA has revised the 100 -year high water mark in the study area downward by approximately 0.5 to 1 foot since our 1987 study. STABILIZATION ALTERNATIVES Based on our updated observations of the river bank in the study area, we are of the opinion that no significant changes have occurred since 1987 and that only the anticipated gradual erosion has taken place, and that the stabilization alternatives as outlined in our 1987 study are appropriate. In summary, appropriate alternatives for bank stabilization in the study area are as follows: 1. No Action. This alternative is appropriate in areas where little or no signs of recent erosion exist and where the potential for future erosion is low. In areas where the potential for erosion is higher, this alternative would involve a loss of land through erosion. The feasibility of such an alternative would be dependent on the set back distances to the planned development. The no action alternative would need to be coupled with a monitoring program to assess erosion progression. 2. Localized Repairs, This alternative would involve localized repairs on an as- needed basis of eroded zones along the river bank. These repairs might consist of either cutting or filling to establish more stable slopes, leaving as much of the native vegetation in place as possible. The exposed slope faces would be protected through revegetation and /or slope protection systems such as rock riprap. This alternative would also require a monitoring program to assess the need for repairs. 3. Revetments. Flexible revetments consisting of rock riprap are considered to be the most appropriate type of slope protection for areas with wide- spread erosion and little local vegetation. Slopes supporting revetments would have to be cut or filled to inclinations on the order of 2 to 1 for construction feasibility and overall slope stability. Such revetments should include habitat - enhancing features as part of their design. PROJECT CONSTRAINTS In order to provide updated information regarding constraints imposed on these types of small bank stabilization projects by various local agencies, we have again contacted appropriate agency representatives for their current requirements. We have contacted FEMA, the U. S. Army Corps of Engineers, the State of Washington Department of Fisheries, and King County. This site is within City of Tukwila boundaries, and is therefore out of the jurisdiction of King County for DAMES & MOO RE €, Boeing Employees Credit Union April 24, 1989 Page 6 initial permitting. However, we understand that King County is involved with future maintenance along the river bank. FEMA has available a Revised Preliminary Flood Insurance Rate Map, effective date December 14, 1988, that is now out for public review. This map indicates that the maximum 100 -year flood high water mark, or floodplain boundary, ranges from about Elevation 12.7 to 12.3 across the study site. The Corps of Engineers requirements for small stabilization projects of this type have not changed significantly since 1987. In summary, work done for such projects can fit under the Corps nationwide permit program that is already in place if the following criteria are met: 1. 500 feet or less of bank protected. 2. Placed fill totals less than 1 cubic yard per running foot waterward of mean higher high water. 3. The placed fill has to be placed in an area where actual erosion is occurring, and can only be the minimal amount necessary to remediate the erosion problem. Fill placed for development or other purposes will not meet the requirements. The Corps also indicated that bank erosion that has occurred within the last year, generally as the result of a single, identifiable event, can be repaired or replaced under an existing nationwide permit. Projects that do not fit within the above requirements will require individual permits. The Washington Department of Fisheries representative indicated that as part of obtaining a state Hydraulic Project Permit for. this work, a site visit by .their representative during the design phase would be necessary. Their general criteria for bank stabilization is to preserve as much of the natural habitat as possible, and that any repair work minimize the negative impacts on the riparian environment. Any slope protection system installed should include as many habitat features as possible. For example, Fisheries personnel described a "living wall" revetment, where mats of willow branches were interspersed within the fill materials. The growing willows would provide excellent riparian habitat as well as reinforcment for the fill. DAMES & MU ORE Boeing Employees Credit Union April 24, 1989 Page 7 RECOMMENDATIONS Bank Stabilization Based on our 1987 and 1989 studies, we are of the opinion that the river bank in the study area has a low to moderate potential for continued erosion and resulting instability. The minimum set -back distances from the river high water mark to the proposed structures range from about 55 to 75 feet. This set -back provides a buffer zone that will serve as protection from erosive events. Accordingly, we are of the opinion that only localized repairs in certain areas will be required during construction. The bank areas between Stations 0+00 and 4 +50 appear to have the greatest potential for continued erosion. As suggested in our 1987 study, we recommend that a phased approach be adopted for bank stabilization. Such an approach would include the following elements: 1. Initial repair of localized erosion zones during construction. 2. Regular monitoring of the river bank to assess the need for further repairs. 3. Possible future construction of revetments if wide - spread erosion zones develop. Our recommendations as contained in our 1987 report for these various phases are considered generally appropriate. Pertinent recommendations for the various phases of repair are summarized below. Initial Localized Repair: We recommend that localized repairs of certain areas be performed during project construction. The localized areas needing repair are concentrated between about Stations 0+00 and 4 +50. Repairs should be made wherever signs of active or recent erosion are evident and the surface soils are exposed to wind and water forces. Areas requiring repair will be denoted by absence of vegetation or other forms of slope protection, steep slopes, and evidences of slumping or soil loss. We recommend that localized repairs of eroded areas be accomplished by first cutting or filling as necessary to obtain slopes either flatter than or matching the surrounding uneroded bank areas. We strongly recommend that as little existing vegetation be removed as possible. Prior to any filling, the exposed slope surface should be cleared of all loose soil and debris and compacted, if possible, using light hand compaction equipment. Fill material should be well - graded sand and gravel fill with a maximum fines content (percentage of silt and clay -sized particles) of about 5 percent. Granular materials with a higher fines content can be used as fill DAMES s & MOOR Boeing Employees Credit Union April 24, 1989 Page 8 if placed during dry weather periods above the high water mark. Where possible, fill material should be placed in lifts not exceeding about 1 foot in thickness and compacted using light equipment. Repaired areas should be revegetated with appropriate local vegetation, preferably by hydroseeding with a seed and mulch mix. Other areas along the river bank that are bare of vegetation should also be hydroseeded to enhance protection from erosion. We recommend that repaired areas below the high water mark be protected with a minimum 2 -foot thick layer of graded rock riprap. The riprap rock should consist of 45 to 65 percent rock in the 500 to 1000 pound range and 25 to 45 percent in the 50 to 500 pound range. We further recommend that the riprap be infilled with pea gravel to facilitate sedimentation of the underwater area and subsequent revegetation. Riparian habitat could also be enhanced by placing cut willow branches or other woody debris within the riprap. periodic Monitoring: As anticipated, it appears that gradual river bank erosion has occurred since the 1987 study, and is expected to continue over time, particularly in the section between about Stations 0+00 and 4 +50. Accordingly, we recommend that a monitoring program be established to allow periodic assessments of bank conditions and timely remediation of any developing problem areas. We recommend that the river bank adjacent to the development be monitored at least once a year. The optimal time for the monitoring would be in the early summer, after spring runoff has passed and water levels have receded .somewhat to allow observation of most of the bank. Areas needing repairs should be treated as described in the preceding section. Revetments: If widespread areas of erosion were to develop along the river banks in the future, the most appropriate means of remediation would appear to be a flexible rock riprap revetment. Such means of slope protection appear to be compatible with environmental and aesthetic guidelines, and can be designed to incorporate habitat - enchancing features. Recommendations for such revetments were provided in our 1987 report and are considered to be generally appropriate. However, we recommend that the actual design of any slope protection system be developed to address the specific erosion problem when it occurs. The localized repair and monitoring program outlined herein should serve to minimize the potential for future widespread erosion. Trail Alignment We also recommend that the paved recreational trail paralleling the river bank be routed onto Boeing Credit Union property as currently proposed to avoid removal of the large trees at the top of the bank. Removal of the trees could have adverse impacts on bank stability, and would be detrimental from an environmental and aesthetic viewpoint. DAME. & Muoiu: JL:KSM:emw 10863- 003 -016 5 copies submitted Attachment Boeing Employees Credit Union April 24, 1989 Page 9 We appreciate the opportunity to provide this updated study. Please call the undersigned if you have any questions or require further information. cc: The Callison Partnership 1 .. , .• Y ��S,y. * St • w I \ .2e' .ClST E0, '. 4.''.. Attention: Mr. Robert J. Hutnik (I) Yours very truly, DAMES & MOORE Joseph Lamont, Jr. Senior Partner (Ltd) elly S. Merrill, P.E. enior Engineer ty' r -- • 1 125134 Duwamish River s+0041.... ............eL7 :t.... 6+00 9+00 e . ..... tr- \` 8- 2 -85.*. \ Property Line B -3 • Reference: Site Plan 1 Vicinity Map Dated 316189, The Callison Partnership. Proposed Proposed Office Building Approximately 30' Wide River Bank Protection and Trail Easement . 5+00 Approximate High Water Mark Proposed Drive-Up Banking Area ` '13+00 `. • .2+00- +? Proposed Parking Garage ••t+oo a+ao 'N 8 % / t 1 I :1 1 Gateway Drive Key: 0+00 • B-1 DC -10 8 -2 -85♦ DC -4-85 N i 0 Arbitrary Stationing along River Bank Boring Location and Number 1988 Dames & Moore Investigation Dutch Cone Probe Location and Number 1988 Dames & Moore lnvestigation Boring Location and Number 1985 Dames & Moore Investigation Dutch Cone Probe Location and Number 1985 Dames & Moore Investigation Note: Exploration and facility locations are approximate. 100 200 Scale in Feet Plate 1 Site Plan Dames & Moore r i t 1 122954 8+00A 9+00 e•■••••• ..•• "' • • • ter r • • • 8- 2-854. • \ 8 -3 Property Duwamish River • L__ Line Reference: Site Plan I Vicinity Map Dated 316189, the Callison Partnership. !!L� .•s....... 6+00 Proposed Parking Areas • `•. Proposed Office Building Approximately 30' Wide River Bank Protection and Trail Easement .b.4 Approximate High Water Mark \•_` ., ' •04+00 • .. ▪ " . Proposed Drive -Up Banking Area • • • •A 3+00 • • 1 1 \ s .4% ., • • ` .2+00• ,_ _ . � a - % ' 4 ' t Proposed Parking Garage / DC-1 % Gateway Drive El Office Building pproximately 30' Wide River Bank Protection id Trail Easement 00 �'•. Approximate High Water Mark \ •. • . ?4+00 • ., ••. Proposed Drive -Up Banking Area -4 -85 • .■ 3+00 • • \ + 2+00• 1, Proposed Parking Garage B -4 B -5 teway Drive ., % •• 11+00 •` \ •• .0+00 :.1 •. • Key: 100 o+oo • Arbitrary Stationing along River Bank B -1. . Boring Location and Number 1988 Dames & Moore Investigation DC -10 Dutch Cone Probe Location and Number 1988 Dames & Moore Investigation B -2 -85+ Boring Location and Number 1985 Dames & Moore Investigation DC -4 -85 in Dutch Cone Probe Location and Number 1985 Dames & Moore Investigation Note: Exploration and facility locations are approximate. Scale in Feet 200 Plate 1 Site Plan Dames & Moore_. 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LJT L III) I NORTH ELEVATION VEST ELEVATION SERVCE EOCX PRECAST COWTIEIE PANELS • COMMIE =AWNS • IP/P.00AV NORTHWEST ELEVATION AT ENTRY DRIVE Mom Ir 'sr sam•eur swat vw.ctrreJ/CPW 1 - • : • • COVEIED EMMY NANGWASI CAMPO lip TIII pin •moniiiiiiiiiiiiiimmiri RN „ ,--,1 1 _ .11111111•••• MI= I II SI _I 111[11F .1T.1.1.1. _ II MI _ TT 1 11 1111111111 - I.: 111 110 1 1111111101 111 1 1111111111111111111111 r-- T EAST ELEVATION SOME me: t-a. /- • • WECHANCAL PENTHOUSE 1110:03 ROOS SEITIACS - MGM CONE1W1I PAWLS — AEFLECTIVE CLASS INN 71711 en" graglilll • 1. _4 t 41-1- -1 1-- -1 111 1 gun •••1 11111111111111111•1111 11111 111111 11111111111111 1111111111M111111111111111111 . 14 • ......... . . • I I rriiir • 1(11! ; :.1 TT I 1 11 1 1 111 WWWWIONEE SOUTHWEST ELEVATION AT GATEWAY DRIVE scAlf ,,sr i•-o• EMMY MOM PATXI r - RAW. SETONO WALL Slang' CRAIN LP TO WW1 STLCCO WPISH ________ I II IIIIIIIIIIIIIIIII1 I 1=1111111 IIIIIIIIIIIIIIIIIIIIII i !LW I 1111M1111111■1119211 IIIIIIIIII IMIII I11111111181111 III . KR um! IN • •• ow IIIIIINIUMUIIIMII 1 1111111111111 1111■114111•111HIMINIIIIIIIIIIIIIIMENWILVE t SWIM ELEVATION SCALE I/W f OlOmsal• •■• amilelle.mmo• ROOM EMPLOYS > CREPT UNION MICE EACEST TUKWILA. Aft TheCiww Poilmin1Ws WwWW. --•—•••••• ••— 3/MIPOILlld 2.1.714 ID - ^ - - - - ---- twAftwaton■ WOMILI. *KS . - - INI.■ arta BULDNG 1 GARAGE ELEVATIONS tat Veit A-2 pasi prim row ?moo •.: • ROWN1 RIVER DOW MGM MIER 111.111fAMINN i I ur-o• ecr-o• wie-o- ; r 1 I WM IVIINIMOO 10* WET (IWPCMILIR ! I - mai Ws= Osowcalialtml IZCRE P • ! 1 l' • DRtVE-L$' CANOPY PARKING DECK 1 E, :iira Etiiile i t tHren-R1 .0 - IL 41_ ri.. -ft ii;,;„1" xo L.A.- up r).... _ • .- Kam UM.: ale rt No "It EMI.- !IEEE 0-- wf-cf loce-tr 1 OVANDONONIM 1.01.M.CT 014000ff 101110.101411.00., ¶ VIME 1 'Wort ENT SHOFELIE PRCF1LE - 1125 SCAM; 1 RE LBW ICOR. VIA MONT IIIIECUANCAL SMEEN Fe/ SHORELPE PROFLE - POO SCALE: - xr-o 100 MetbreCT EIRICINIENTRI t. ale UDLITY ENCLOSURE BULDP•3 PROFLE .01 F SHOIELPE PROFLE -1300 soLICF-1 I scare 0,0041112ff LW I I-- _4 I I 1 I 4. • MR11.100BIT i Ott -C f I ,�-a f I 1.01■INCTIENRMIMIR MICEOPACTIRROMIern.SNE I I! 1 1 1 1 -4 I II li 1. 4 i PARKING DECK I I we I " • I ..- Ka vIt ay. -1_ • • t , OUNIMAIIM AMR e I ,. i : -' .....::,' - ' ' ....■■•• • ! Pm! "EMT Une 1111111111 ;I 1 - 40•-0• • IIIMIRRIONDR • eteR WET 1111•1011MT MI Neer 861101011ERN Mt 04.61r..a. SCREEN MORELS* PROFLE - 1050 SCAE C sir Ir. !mop ion SHOFELRE PROFLE - MOO lame r -177:Tr ••••■••••■•••• The Gaon PartnersHp =1101.■■ ON•4 •=111.0 • ruar.......• ••■••••• ROROVELL ISa MOM., MN >BOWS ENPLOYEW MOD' MOM OPME NOM TUKWILA. lel srtE Ff CRES MUM . 310031 A-3 OM MN PIM" pan plow paws fame paws fauna tomisq ram ream • (7)(7)(7)(.•)% 0 4i) • 4.1 t t _t+Th 01000 ew 71, Goloway Cgive 1 T 0 Plant List WON ronser Cantinun beluga To•lifste 2 lir 0•.0r • Com, 00•615 There000 C1051' 2' 000050 MMus 50■1•It• r wow • Pr. 001101,200 'Autumn 51011i2 50 Pynn 0000e70,1 Thanlfdow 2' 101400 0200,000 oalustflA r caw. 015011110 0110.101.00 '01 r Shrubs 10bu1u0 unAtio 'Co.0Acts 50150 3.000 A00101 moils *00040 "moo' 24-2E 2 1=51 c.00o. his•AW0 • 10051 55210r21 0.000 2 KZ! Comm 01010witroa 1 gall. 3 I=1 000 0100010 00000 1010,4' 1 ga•bro 1•12 W 11000010 sealealwA 'CoMvulli I sown r moan. 00m00050 '00000101 00.000 "'OW gail•laXPRIA1) 11 'Don 002140 Is.Ir 11'.0 0:7-1 0y11000 hook,. Voklego••••• $ SI0 r•Cree =11 vo•ntom tiii...Cawooste ' 0 Ma. r•fro Ti med mlftever CI Eeentrreel lecteeed 'Melees. Aletelee 141520.0 MO 'gallica' Leen ▪ eehlr • Existing Train Legend A A•10, ▪ 11001. C Conamme0 CI. CUM Ex10ee13 WNW bee le twain EsIsAng 0001011010, 1 Wee 1 005e0 irac New All e•www. wow Ws In model f•V • 1.01 10100010 501.550 )> INPL iar. 0111, CINUNT MON 001U MUT TIPMALA. 1.. The Califon Partnership • ■••••■••■•• Gramm Associer ■ 1.611 l _---• • 1101.401. 11.1 mr.11■••■ LAADSCAPE PLAN 00200 L-1 101101 mil ma pa pura pow pos. Ram rim pm. pm* p.m raw ' s. r • Catch hint Ar ..io Exltsiing 2e t ..... ».. n-•. j.. i i �.\ V. / \ \ �; �\ \;: N. \, '111•14.1 OVIIM.1. -sT • :%. — ii .w. \ M i U tili ty Legend I� 1 \\ i v‘ Catchment Area 'B' -- ; ,\ :17.n =. � ' [\ (� ` to Existing 30 S.D. 1 --Catchment Area 'A k to Existing 12 S.D. (1 c •, • i 0 0 0 J 0 n 0 j /. - • ' � 1010 , -f7 ( \;�:. • _ GaMeraY �ttwe - 1 r 1441aLL .4 Ma 4410 K.40 Eal•iMM P, .••g !Mat Bock. it0. • 0•ne. SI.. •• Noted y Get. Volvo v M OW 07•007 Q • 0 naiad Mose CLAIM 80Mn C CN•nout • Irw•• Rolfe le 0•01070 7(07•0•• 00.10 •10.707 M AI *W0 01•n as 0..0.10.0 01 MM07 • Mw. M0 1.00 for M• Interior el M rte 1. 7.01000. 0.•0001. Ow to w0 0rckerwq. foisting peen 00 M da.r00w l 0rotMlr• re Mawr 10.00 maul essemei > BOUM to EMPLOYEES' MEW UNION t7RC0 011CRtY tUtwu Hl fl.t•aeonh- Utekhb Ficturd Crass A0ocet.e - ran.. w... � o0tt0.lo owe e mutt 0 °RADIOMAN 00300 IMIEMP C -1 310/00 eve Ctia laned SUMO.* 4•T.CAtI 350.666 S0. rI. (U.O5 A(: • W H 2 C W CC V < « I I •W < • O C7 <J ce w — U' Y Z O ■ I E LO l OEINGI CREW UNI0111 prnce FAOUY T WL..4. Th.Oilman PYM1Mr1Io *Web mesas. Um.. 1.• r .or._u . ALTA BOUNDARY SURVEY C -2 3I$I r�1II U I► II f 1 I I1 11 111JJ c.«.o..rr r en .. w e mo ,, ,.,a ___ _ ,r .,.r._,_. • toolOO. *Ow rM.r.Mr «« A Hr r .7 nr r wa..err re a.nno w- COOWII OF.r s ~LC -, sr..o r,R ■•■■w..rr ~MK .a.1_ erne 1111'w MONO EMPLOYEES' CREDIT UNION vnN WIGS FKATY Tvcr.aA +� McCall*. PleMseslip eor.r.0 , sa MUIN. SHORatE PU■ SH-1 • S31Xkld 3113:110116 PLI11•011• stio4 tato.reil; •••••••• Vernika owis - 4•8 dimsriana 111••Xli 441K741 IMMO NONNI activo U3A01013 0111011 INMMINNIO.01.0•8 -- - a IIH • 1 § In S2.2 NM-WS Wer 11•21L27S' 000 O. --L-. .1411. WaS70•11 • 1 • • • I •••■ normono 00.010a011, DI.0•0•••••• •dgyel 1 ••• 000 L-- ge•o NOLI-935 - - .oir yet rirThr• I , OP /V'LL / ,•• 00,0 cash ••10 • • aws• 711111PIC Ofier matimrsooTina./47 rat C-HS S31:03kkl 341138016 M... • WUIPOIS 11•11110. • .11111•MIII• 4.00•■••••••••••■■• 0••••••• •111111 .111•11■••••••• we.= ••••••:04 dpossigad =WO oil Thu ACKM113140 Noon minas .11113407111 CASON r 4. F u Ove -47• g NOIL275 <CV .rto Avr mow arrM.r. ONO., Inctiar / ‘7 / sros rm. v.., Hai. AN 9 Nal-735 4 • l ar. rOrMong re. Arra.", 1".•■• • WNW • • 1 E /YOU-735' Or Al2r12gS / error ...crra ,..." .., ,r.7.i;a—viiisr—r....•ro --' V — • • SZILICkiel 1•11•0 sore•Mx NOM /IMO • .taw7.117 VOWS P-HS "be - MP Woolf -. ow „• se .,7 /vLYL33• 1 , ,•!.oafs Orr arr.or 12.+1•• • • is i t J !1•.. so iv•b.q /4 ■ Orig. frog.. - . S[•9 MaLVS L5'r4 NOt12.35 / 12 • aleeei =mei 11 m1omi art MEI M STUMM 3t'BtlONS ...IW .a. / 1 111= f. j .IY.. M`. M.. .• mop ...L4 twert, VII 'MOM WINO LOBO < MOON 9+IS mamas r • ARr sh// no /t2J5' as ar`.o- i �..r,�.....a. CAM* 11.111X1. ■/+a/ 4011-735 / k M v AVINY 14,1•11 A sc.s t*XLEs OW/ Nal.239 9-HS uisi S-11401k1 311340HIS •MO/OO• kaillail.00 14•ROMOKI• •1111...• MD.0011111 4.11 •* 44 acliIrJ 1r111AMIL MW MAD MOM MOND < .1111111401d1111 1111110, ilanNalftwit ••••••••■•••••••■• me 8 • 1,, 17.1;lo .609VIRRI JAIMI•I•113 .11....roo••• orkaw lk.aka Site/ NO1J-738 Of k7 Ar111.039 A 0 ARP P.I.RIN —e • ' • • • • %Mamma WOIRCI■ ■1•114.13.0.1 Itamanamt.:4 ( r/R 6 1989 A OFFICE. FACILITY Tukwila, Washington The Unison Partnership Architecture Programming Planning Interior Design 1423 Third Avenue Suite 300 Seattle, Washington 98101 -2148 206/623 -4646 The Gases Portnaolip, A Corporation Shoreline Submittal BOEING EMPLOYEES' CREDIT UNION March 6, 1989 Architecture Programming Planning Interior Design Graphics The Callison Park'" rship March 7, 1989 Ms. Moira Carr Bradshaw City of Tukwila 6200 Southcenter Boulevard Tukwila, Washington 98188 Dear Moira: Robert J Hutnik, MA The Callison Partnership, Ltd. RJH:tk/61 I IMAM t 198 f f ; 9J RE: Boeing Employees' Credit Union (B.E.C.U.) Office Building Project Number 88266 Thank you for your assistance in submitting B.E.C.U.'s Shoreline Application yesterday. Enclosed, per your request, find completed 11 copies of page 22 and 23 of the Environmental Checklist. Also, note that samples of the proposed precast concrete and glass to be used on the project were also included with the submittal. The following it are noted as corrections to the application. 1. Design Review Checklist, page 2; ADD checkmark to item "I ". DELETE checkmark from item "J ". 2. Design Review Application, page 2; response to question 5, next to last sentence: CHANGE "curved falapes" to read "curved facades ". 3. Design Review Application, page 4; response to question 8, third sentence: CHANGE "star stepped" to "stair stepped ". 4. Shoreline Permit Application Checklist, page 2; DELETE checkmark in item P - not applicable. If you have any questions or require additional information do not hesitate to contact me. Sincerely, cc: Boeing Employees' Credit Union: Gary Oakland, Jim Roller, Gerald Parks The Callison Partnership: Gerry Gerron, Jim Bothwell 1423 Third Avenue Suite 300 Seattle, Washington 98101 (206) 623-4646 The Callison Partnership Ltd., A Corporation KING COUNTY ASSESSORS MAP Development Application: Applicant: Project Location: Represented by: Acreage: Comprehensive Plan Designation: Zoning District: Attachments: Shoreline, Design and Environmental Checklist Review for an Office Building Plus Parking Deck for Boeing Employee Credit Union Boeing Employee Credit Union 7700 East Marginal Way South Seattle, Washington 98108 12788 Gateway Drive Tukwila, Washington 98188 The Callison Partnership 1423 Third Avenue, Suite 300 Seattle, Washington 98101 (206) 623 -4646 8.05 Ares Light Industrial M -1 Light Industry (Building Height Exception Area up to 115') A -1 SITE PLAN/VICINITY MAP A -2 BUILDING /GARAGE ELEVATIONS A -3 SITE/SECTION PROFILES L-1 LANDSCAPE PLAN C -1 SITE UTILITY AND GRADING PLAN C -2 ALTA BOUNDARY SURVEY C -3 TOPOGRAPHY SURVEY SH -1 SHORELINE PLAN SH -2 SHORELINE PROFILES SH -3 SHORELINE PROFILES SH-4 SHORELINE PROFILES SH -5 SHORELINE PROFILES SH -6 SHORELINE PROFILES PHOTOS (4) OF SITE MODEL ASSESSOR'S MAP ADDRESS LABELS OF NEIGHBORING PROPERTY CMNERS WITHIN 300' OF SITE. EXTERIOR LIGIP SPECIFICATION SHEETS 8912040636 This Amendment is entered into this RECITALS By RF F ' F:EC E1 AMENDMENT TO RECREATIONAL TRAIL EASEMENT 18th day of August 1989 between Boeing Employees Credit Union, a Washington corporation ( "Grantor "), and the City of Tukwila, a Washington optional municipal code city ( "Grantee "). GAD 01 A. Grantor is the owner of certain property (the CO T!' "Property ") which is described on Exhibit A, attached hereto CD and incorporated herein by this reference. Grantor acquired title pursuant to that Statutory Warranty Deed dated June 7, QD 1989, and recorded pursuant to King County, Washington, recording number 8906080715. B. Grantor's predecessor in interest, Kaiser Gateway Associates, granted to Grantee a Recreational Trail Easement pursuant to that instrument recorded May 20, 1988 in accordance with King County, Washington recording number 8805201057 ( "Easement "). C. The Easement pertains to property which is described on Exhibit B attached hereto and incorporated herein by this reference. EXCISE TAX NOT REQUIRED Co. Records Division Depu ty . im l7 C STATE OF WASHINGTON ) )ss COUNTY OF KING 3 On this /2, day of 5 ✓ , 1989 before me personally appeared Gary L. Van Duseri, to me known to be the Mayor of the City of Tukwila that executed the within and foregoing instrument, and acknowledged said instrument to be the free and voluntary act and deed of said optional municipal code city, for the uses and purposes therein mentioned, and on oath stated that he was authorized to execute said instrument. Given under my hand and official seal hereto affixed the day and year first written above. - NO T Y PUBLIC ' n and for t.. e State of Washington, residing at -rt., //, Glut, My commission d xpires : Y STATE OF WASHINGTON ) )ss COUNTY OF KING On this )L- day of S 4g.V , 1989 before me personally appeared Maxine Anderson, to me known to be the City Clerk of the City of Tukwila, an optional municipal code city, that executed the within and foregoing instrument, and acknowledged said instrument to be the free and voluntary act and deed, for the uses and purposes therein mentioned, and on oath stated that she was authorized to execute said instrument. Given under my hand and official seal hereto affixed the day and year first written above. • O RY PUBL t in and for the State of Washington, residing .at My commission' expires: as - �a STATE OF WASHINGTON ) )ss COUNTY OF KING On this IL- - day of S cp`e,A4.btr , 1989 before me personally "S appeared ' «h J (n \ roue.. , to me known to be the City Attorney of the City of Tukwila, an optional municipal code city, that executed the within and foregoing instrument, and acknowledged said instrument to be the free and voluntary act and deed, for the uses and purposes therein mentioned, and on oath stated that they were authorized to execute said instrument. Given under my hand and official seal hereto affixed the day and year first written above. STATE OF WASHINGTON ) )ss COUNTY OF KING On this 18th day of August , 1989 before me personally appeared Gary J. Oakland, to me known to be the President of Boeing Employees Credit Union, that executed the within and foregoing instrument, and acknowledged said instrument to be the free and voluntary act and deed of said corporation, for the uses and purposes therein mentioned, and on oath stated that he was authorized to execute said instrument and that the seal affixed is the corporate_seals . of said corporations. Given under my hand and official seal hereto affixed the day and year first written above. 5- 079/081089JLH NO ARY Sta at My NOTARY PUBLIC in and for the State of Washington, residing at 1 t._R'w, /a, 1.4,4 My commission expires: -zs -9a for the residing D. Grantor and Grantee by this amendment intend to add an additional 1758 square feet of the Property to the easement area. NOW, THEREFORE, for and in consideration of the mutual covenants contained herein, the parties hereto agree as follows: 1. Grantor hereby conveys and grants to Grantee, its successors and assigns, a perpetual, nonexclusive recreational trail easement across, along, in and upon the property described on Exhibit C attached hereto and incorporated herein by this reference, and such property and easement shall be subject to all of the terms, provisions and conditions of the Easement. 2. All other provisions of the Easement shall remain Q, unchanged and in full force and effect. A C4 CT) CITY OF TUKWIL GRANTEE: �✓ BY /�r G L . AN DUSEN, MAYOR ATTEST /AUTHENTICATED: MAC OFFIC By INE ANDERSON, CITY CLERK APPROVED AS TO FORM: F THE CIT: AT 'RNEY 2 GRANTOR: BOEING EMPLOYEES CREDIT UNION GAR J. OAKLAND Its President EXHIBIT.A All that certain real property situate in the City of Tukwila, County of Xing, State of Washington, being a portion of Lot 7 as shown on the plat of Cateway Corporate Center, recorded in Volume 144 of Plats, pages 23, 24 and 25, under recording No. 8901230879, records of King County, Washington, and being more particularly described as follows: Beginning at the most easterly corner of said Lot 7: thence from said point of beginning, along ths boundary line of said Lot 7, south 41 West 424.58 feet; thongs from a tangent that bears North 28 Bast, along the aro of a curve to the left having a radius of 180.30 feet and a central angle of 76 an aro length of 240.94 feet; Thence tangent to the preceding curve North 48°13 West 250.43 feet; Thence tangent to the preceding course along the aro of a curve to the left having a •radius of 160.50 feet and a ventral angle of '4 40°18'05", an arc length of 145.86 rest: Thence leaving the boundary line of said Lot 7, North 04 West 41.60 feet; Thence North 41 Bast 382.06 feet; Thence North 48°13 West 31.00 rest; 02 Thence North 16°5814" East 333.84 teat to the bank of. the Duwamish River, at the man high water line as shown on sold put; cn Thence along said bank Of the Duwanish Elver, easterly and 90 southerly to the point of beginning. Contains 350,666 square feet (8.05 acres) of land more or less. Situate in the County of King, State of Washington. 8912040636 EXHIBIT B A strip ot land 30.00 toot vide in Lot 4 of Tukwila Short' Plats Mo. 6S- 32 -6s, recorded in look 52 ot Surveys at Pags.113, under A.P. 16611179001, records of acing County Washington, and being sore particularly described *0. 11LGIN11ING at *point on the westerly line ot said Lot 4, distant thereon 110 309.33 test Iron an angle point in said Lot 4 (said angle point being at the intersection of the two courses shorn as N60'32 ■ ! 7.13 test and M0'41'14•w•353.00 feet) s thence train staid . P023R 01 MINCING, along said vsterly line of Lot 4, MO . teetl theses leaving said.vo.tsrly lino $75 79.44 tests thence 677 27.90 Meets thence m74 tests theses 11S7 44.41 t..t: thence 679 46.43 teed thanes 1177 34.14 test: thence ser 14.54•!'61.39'teet: theses 677 143.53 test: thence 560'59.49•! 11.041estl thence $90 61.75 test: thence 547'10.35`! 69.43 tests thence 042 74.62 test: thence.336•36'41 toots tames 02'.11.55°C 51.61 test: thence 35•05S51•11 159.70 tests thence 1$ 91.24 teat thence 66.01'36•! 110.51 tests these. 13 30.95 test: thence S71 12.26 test take point on the southeasterly line et. said Lot 4, thanes along said south asteriy line 341 32.62 tests thence leaving said seuth.aiterly :line M/1 !W 20.13 tests elands M2'14.21 50.10 Meets thence. N6 109.59 tests thence NV 40' 43•W 14.66 tests . t ence M$ 139.73 tests thongs N2 51.41 teats thence M 20'34.41•W 144.42 tests thence 1143 49.40 test: thence • N47 67.47 tests thence 1190 56.12 test; thence N4o'5$'45•w 72.61 tests thence M77 136.09 test;. thence M69` 14'54•w 54.63 test: thane s77 36.62 Feet; thence. N7!•19•02w 49.30 tests thence 667 37.51 test: thence 274 57.36 test: th ass M77 20.26 tests thence *75 79.49 test is the POINT 01 6UOINNING., Containing 41,368 square test, sere or lice. EXHIBIT C TOiiWSEND—CHASTAIN & ALSSOC - s INC SURVEYORS - ENGINEERS - DEVELOPMENT CONSULTANTS July 27, 1989 Project No. 89019 RECREATIONAL TRAIL EASEMENT c RECEIVED JUL 3 1 1989 B. E. C. U. THAT PORTION OF LOT 7, GATEWAY CORPORATE CENTER, ACCORDING TO THE PLAT THEREOF RECORDED IN VOLUME 144 OF PLATS, PAGES 23 THROUGH 25, UNDER RECORDING No. 8901230879, RECORDS OF RING COUNTY, WASHINGTON, DESCRIBED AS FOLLOWS: COMMENCING AT A POINT ON THE WEST LINE OF LOT 4, CITY OF TUKWI- LA SHORT PLAT Mo. 85- 32 -SS, RECORDED IN BOOK 52 OF SURVEYS, PAGE 113, UNDER RECORDING No. 8611179001, RECORDS OF RING COUNTY, WASHINGTON, DISTANT N 00° 41' 14" W, 309.53 FEET FROM AN ANGLE POINT IN SAID LINE (SAID ANGLE POINT BEING THE INTER- SECTION OF TWO. COURSES SHOWN AS N 60° 32' 46" E, 17.13 FEET AND N 00° 41' 14" W, 352.00 FEET; THENCE N 75° 48' 04" E, A DIS- TANCE OF 79.49 FEET; THENCE S 77° 22' 27" 1, A DISTANCE OF 28.26 FEET; THENCE N 74° 28' 54" E, • DISTANCE OF 57.36 FEET; THENCE N 87° 57' 42" E, A DISTANCE OF 37.51 FEET; THENCE S 79° 18' 02" 1, A DISTANCE OF 49.30 FEET; THENCE Y 77° 16' 11" E, A DISTANCE OF 36.82 FEET; THENCE S 89° 14' 54 E, A DISTANCE OF 54.63 FEET; THENCE S 77° 00' 29" E, A DISTANCE OF 136.09 FEET; THENCE S 60° 59' 45" E, A DISTANCE OF 72.81 FEET; THENCE S 50° 18' 13" E, A DISTANCE OF 58.12 FEET; THENCE S 47° 10' 35" E, A DISTANCE OF 67.47 FEET; THENCE S 42° 48' 46" I A DISTANCE OF 69.40 FEET; THENCE S 26° 36' 41" E, A DISTANCE OF 39.17 FEET TO THE TRUE POINT OF BEGINNING; THENCE CONTINUING S 26° 36' 41" 1, A DISTANCE OF 105.25 FEET; THENCE S 02° 11' 55" 1, A DISTANCE OF 36.63 FEET; THENCE N 34° 11' 28" W, A DISTANCE OF 57.76 FEET; THENCE N 10° 58' 52" W, A DISTANCE OF 84.47 FEET TO THE TRUE POINT OF BEGINNING. CONTAINING 1758 SQUARE FEET, MORE OR LESS. 409 SO. 3RD AVZIUE 'ENT, WA 98032 P8011 206/854 -2043 7 • • ' 9- •• a w- .y , • . . = _ . ..••••• . m / • / r i / • / / 9 p 1 1,00 '�.., FROM BOEING EMP CR UN I . • , f • r• , r :: • ' , 'fir ' /I / • f' "1 1 • r „ r - • • •9WV,.,.•. • • ", . . . r O1=1/23/8q Oq:56 P. B r • r r 0 r 41 4 • / 99 1 de E8'1,1 ' 62i0Z/L0•• CD b •d G 72 - 3� •D� LS :6O s8 /C2 /8O Arave 4.. OD = (05' 2,5) Z t (r'5. 5 Z _ ov - ..33_ t(57 2- 66.e1)( - z7)(6 Nfl , dO d4/3 9N 130G WONd r rr = //q 7./ ff� who is the OWNER NOTICE OF APPLICATION FOR SHORED MANAGEMENT SUBSTANTIAL DEVELOF NT PERMIT 89 - 3 - SMP located at 7700 E. Marginal Way South (street address) within the S.E. (quarter section) of Township 23 (state full name) of Section N., Range (date) Notice is hereby given that BOEING EMPLOYEE CREDIT UNION (relationship to property, such as owner, purchaser, lessee, etc.) of the below- described property has filed an application for a substantial development permit for the development of 6 story, 144,000 square foot office building and credit union (describe development, including uses) center, with accessory surface level and one story parking and drive -up teller windows. 10 4 East in Tukwila, King County, Washington. Said development is proposed to be within 200' of the Green River and /or its associated wetlands. Any person desiring to express his views or to be notified of the action taken on this application should notify Darren Wilson. A sistant Planner (name, title of local government official) Planning Department, City of Tukwila, 6200 Southcenter Boulevard, Tukwila, WA 98188, in writing of his interest within thirty days of the final date of publication of this notice which is S nday,Warch 26, 1989 (date) Written comments must be received by Tuesday, April 25, 1989 Published in: Valley Daily News - March 19, and 26. 1989 (publication date(s)) Distribution: City Clerk, Mayor, Adjacent Property Owners, Department of Ecology, Property Owner, File W. M., (23 /P2.SHORNTC) LR 11/24/87 SHORELIKr SUBSTANTIAL C( "V PERMIT APPLICATION TYPE OF ACTION: J Substantial Development Permit Q Conditional Use Q Variance 2. RELATION OF APPLICANT TO PROPERTY: 3. PROPOSED DEVELOPMENT (be specific): (l Owner 0 Lessee [J Purchaser Q Other 1. NAME OF APPLICANT: BOEING EMPLOYEE CREDIT UNION Address: 7700 F. MARGINAL WAY SOUTH City: SEATTLE State: WA Zip: 98108 Telephone: ATTN: GERALD PARK 544 -3447 4. CURRENT USE OF THE PROPERTY WITH EXISTING IMPROVEMENTS: VACANT PROPERTY PREVIOUSLY APPROVED FOR 151,000 S.F. IN BUILDING, 8, 9 AND 10 OF KAISER 1,550,000 FOR DECK 6. GENERAL LOCATION OF PROPOSED PROJECT :12788 GATEWAY DR., TUKWILA, WASHINGTON CONSTRUCTION OF A 6- STORY, 144,000 S.F. OFFICE BUILDING AND CREDIT UNION CENTER. THE SITE WILL HAVE 464 CAR SURFACE PARKING AND 180 CAR 1 LEVEL PARKING DECK OF 62,000 S.F. GATEWAY CENTER, PHASE III APP. NO. 87 -8 -DR. 5. TOTAL CONSTRUCTION COST AND FAIR MARKET VALUE OF PROPOSED PROJECT (INCLUDE ADDITIONAL FUTURE DEVELOPMENTS 10,300,000 FOR BUILDING CONTEMPLATED BUT NOT INCLUDED IN THIS APPLICATION): E , within F QUARTER of SEC 10 of Township 23 N., Range 4 W.M., in Tukwila, King County, Washington, adjacent to the Green River. M -1 LIGHT INDUSTRIAL 18.40 SHORELINE ZONE 18.44 CITY OF TUKWILA PERMIT KING COUNTY FLOOD CONTROL SF .ELINE PERMIT APPLICATION 7. LIST THE MASTER PROGRAM POLICIES (USE PROGRAM SECTIONS OR PAGE NUMBERS) WHICH ARE APPLICABLE TO THIS DEVELOPMENT: 8. LIST ANY OTHER PERMITS FOR THIS PROJECT FROM STATE, FEDERAL OR LOCAL GOVERN- MENTAL AGENCIES FOR WHICH YOU HAVE APPLIED OR WILL APPLY, INCLUDING THE NAME OF THE ISSUING AGENCY, WHETHER THE PERMIT HAS BEEN APPLIED FOR (AND IF SO, THE DATE OF THE APPLICATION), WHETHER THEN APPLICATION WAS APPROVED OR DENIED AND THE DATE OF SAME, AND THE NUMBER OF THE APPLICATION OR PERMIT: STATE OF WASHINGTON - SHORELINE PERMIT Page 2 9. NATURE OF THE EXISTING SHORELINE. DESCRIBE TYPE OF SHORELINE, SUCH AS STREAM, LAKE, MARSH, FLOOD PLAIN, FLOODWAY, DELTA; TYPE OF BEACH, SUCH AS EROSION, HIGH BANK, LOW BANK, OR DIKE; MATERIAL SUCH AS SAND, GRAVEL, MUD, CLAY, ROCK, RIPRAP; AND EXTENT AND TYPE OF BULKHEADING, IF ANY: (To be completed by local official) FLOODWAY - sandy silt overlying fine sand; various degrees of slope from .04:1 to 4:1. Blackberry, grasses and deciduous trees; rip rap adjacent to storm outfall. S'..;ELINE PERMIT APPLICATION Page 3 10. IN THE EVENT THAT ANY OF THE PROPOSED BUILDINGS OR STRUCTURES WILL EXCEED A HEIGHT OF THIRTY -FIVE FEET ABOVE THE AVERAGE GRADE LEVEL, INDICATE THE APPROXIMATE LOCATION OF AND NUMBER OF RESIDENTIAL UNITS EXISTING AND POTENTIAL, THAT WILL HAVE AN OBSTRUCTED VIEW: (To be completed by local official) SINGLE FAMILY RESIDENTIAL UNITS IN THE ADJACENT AREA ON THE WEST BANK OF OF THE RIVER ARE ALONG THE VAI I FY WAIL WFTS OF SR6D9 AND 42ND AVFNIJF S_ GROUND ELEVATION IN THESE RESIDENTIAL AREAS BEGIN AT ABOUT 50 FEET. 11. IF THE APPLICATION INVOLVES A CONDITIONAL USE OR VARIANCE, SET FORTH IN FULL THAT PORTION OF THE MASTER PROGRAM WHICH PROVIDES THAT THE PROPOSED USE MAY BE A CONDITIONAL USE, OR, IN THE CASE OF A VARIANCE, FROM WHICH THE VARIANCE IS BEING SOUGHT: (To be completed by local official) 12. GIVE A BRIEF NARRATIVE DESCRIPTION OF THE GENERAL NATURE OF THE. IMPROVEMENTS AND LAND USE WITHIN ONE THOUSAND (1,000) FEET IN ALL DIRECTIONS FROM THE DEVELOPMENT SITE: AREA COMPOSED OF BUSINESS PARKS, LIGHT INDUSTRIAL /MANUFACTURING FACILITIES I HEREBY CERTIFY that I am the above - mentioned applicant for a permit to construct a substantial development pursuant to the Shoreline Management Act of 1971, and that to the best of my knowledge the information submitted is tjue and correct. DATE: 3_6_89 SIGNATURE: (29 /SHOR.APP1,2) tj Gerald Park Boeing Employee CU 7700 E. Marginal Way S. Seattle, WA 98108 JS:jb cc: ✓City of Tukwila STATE OF WASHINGTON DEPARTMENT OF ECOLOGY Mail Stop PV -11 • Olympia, Washington 98504 -8771 • r(206)7459:0000 • June 19, 1989 1 JUN 2 21989 Re: City of Tukwila Permit #89 -3SMP Boeing Employee CU - Applicant Shoreline Substantial Development Permit #1989 -10360 Dear Mr. Park: The subject Shoreline Management Substantial Development permit has been filed with this office by City of Tukwila on June 7, 1989. If this permit is not appealed to the Shorelines Hearings Board on or before July 7, 1989, authorized construction may begin. Other federal, state and local laws regulating such construction shall be complied with. Unless an appeal is filed, this letter constitutes final notification of action on this permit. Sincerely, a 3 Jo Sohneronne Permit Coordinator Shorelands and Coastal Zone Management Program : 4t& ' C SITE PLAN CALLISON PARTNERSHIP I ; OTE.4 DOTTED FOO,TPRINTSINDICATE l " . • t EFRESENT FORMERL A PPROV E D 46 :GATE WAY'CENTER; (' CLEARITHAN THIS NOTICE, IT ISDV CONCEPTUAL TRAIL ALIGNMENT PRELIMINARY TRAIL ALIGNMENT RIVER EASEMENT