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17-105489-Comment Response Letter-11-12-2021-V1 November 11, 2021 Job No. 1886-001-016-0016 Ms. Lisa Klein, AICP Contract Planner, City of Federal Way City of Federal Way 33325 8th Avenue S Federal Way, WA 98003-6325 RE: File Nos. 17-105489-UP & 17-105490-SE TECHNICAL REVIEW COMMENTS Woodbridge Business Park - 327XX Weyerhaeuser Way South, Federal Way AHBL No. 2200534.30 Dear Ms. Klein: This letter is written on behalf of Federal Way Campus, LLC to provide detailed responses to comments received from AHBL dated March 19, 2021, technical review comments received from Kevin Peterson at City of Federal Way dated March 22, 2021, and Critical Areas Report comments from ESA dated January 25, 2021. In an effort to provide concise and direct responses, we have copied the review comments below in italics and added our responses in bold. Comments from AHBL in letter dated March 19, 2021 1. Technical comments made about an item on one sheet may necessitate changes to other sheets and related documents, and it is the applicant’s responsibility to determine any such necessary adjustments. Please ensure consistent information is communicated throughout the plan set and associated application materials. This comment has been noted and the re-submittal has been verified to ensure it is consistent throughout all documents. 2. See the separate City technical review letters pertaining to the proposed BLA. This comment has been noted. The prior BLA applications (File Nos. 20-10116 and 20- 103511) have been withdrawn. We anticipate a condition of approval of this Process IV application will be to process a BLA concurrent with building permits to align property lines with the final configuration of the development. Ms. Lisa Klein November 11, 2021 Page 2 Parking Analysis Off-street parking shall comply with the 1994 zoning code as modified by the provisions of Section XIII of the CP-1 regulations. Required parking is one parking space per 300 square feet of gross floor area (GFA) for office, and one for every 1,0000 square feet of GFA for warehouse. No floor plan has been submitted, so the exact breakdown of office and warehouse space has not been determined, however, if we were to assume that 10 percent of each building is office space, the provided number of parking spaces does not meet the minimum requirements. As an alternative to meeting the code minimum parking requirements, a Parking Analysis was prepared by Transportation Engineering Northwest dated March 10, 2020. The following comments pertain to review of the onsite parking and the TENW Parking Analysis. 3. The Site Plan and Parking Analysis do not provide the number of parking spaces per building, just an aggregate number. Section XIII of the CP-1 regulations provided in the CZA provide that: “the aggregate of all proposed and existing uses on the property may, subject to approval of the Director, be considered as a whole in establishing the minimum number of vehicle spaces required, based on the following: 1. Any excess capacity in existing parking spaces lying within 800 feet of a proposed development may be used to reduce the requirement for additional parking development. 2. If the occupant of a proposed use provides van or alternative service between the proposed use and remote parking facilities, any excess parking on the entire property may be used to reduce the requirement for additional parking development.” Either provide a breakdown of parking per building demonstrating that each building meets the required number of parking spaces or provide a response for the Director’s consideration to the CZA provisions listed above. Please see the Woodbridge Business Park Parking Analysis prepared by TENW and dated September 1, 2021, included with the resubmittal. 4. The TENW Parking Analysis provides a parking calculation that is based on the Warehouse LUC 150. A calculation for office space associated with the warehouse use was not provided and the office space use may increase the parking requirement. Provide the office space calculation per the ITE Parking Generation Manual or explain why the office space calculation is not provided (for example, if office space is presumed to be an accessory use to the warehouse use). The updated Parking Analysis, dated September 1, 2021, is based on LUC 130 Industrial Park which is consistent with the land use used in the Traffic Impact Analysis (TIA). A separate office space calculation was not provided because the office space is an accessory use to the industrial park use. 5. The Traffic Impact Analysis (TIA) used a different LUC than the Parking Analysis (LUC 130 – Industrial Park). Either modify the technical documents for consistency or clarify why the Parking Analysis and TIA would use different LUCs. Ms. Lisa Klein November 11, 2021 Page 3 The updated Parking Analysis, dated September 1, 2021, is based on LUC 130 Industrial Park which is consistent with the land use used in the Traffic Impact Analysis (TIA). 6. As requested in the City’s comment letter dated March 7, 2019, if the proposal is not meeting City code requirements for parking, the Parking Analysis shall provide comparisons to other existing similar uses with similar land use characteristics in the Greater Puget Sound region. A specific user of the project has not been identified. As such, a comparison to existing similar uses is not possible. It is recommended that the City impose a condition requiring the building permit application plan set to include a section with a parking analysis that demonstrates compliance with the required parking ratios. This is consistent with the City’s approach on other project approvals, including Woodbridge Building B (Process III Project Approval Finding 8 and Condition of Approval 3). 7. The size provided for the existing WTC building on the site plan (Sheet CV-01) is 239,354 square feet. The size of the WTC building provided in the Parking Analysis is 450,000 square feet. The size of the WTC building provided by the King County Assessor is 468,457 square feet. Clarify which building size is correct for the WTC building and correct the plans and Parking Analysis accordingly. All areas noted are correct. The area noted on Sheet CV-01 is the footprint of the WTC, which is a multi-story building. The area used in the parking analysis is based on a BOMA survey, which established the leasable area within the building (451,460 sf). We have included the Assessor’s information on Sheet CV-01. Plan Statistics 8. The Cover Sheet of the Plan Set (Sheet CV-01) depicts the site area as 136 acres. Sheet SD-01 provides the site area as 145.99 acres. Clarify which statistic is correct and modify the plans and documents as needed to correct the discrepancy. The project has been reduced to a total gross site area of 97.66 acres. 9. There are discrepancies in the impervious surface numbers provided for the project area. The Architectural site plan provides 60.7 acres of impervious, Sheet SK-01 provides 45.79 acres of impervious surface, and the SEPA checklist identifies 61.02 acres of impervious surface (45 percent of 135.61-acre site). Clarify which statistic is correct and modify the plans and documents as needed to correct the discrepancy. The discrepancies have been resolved. The total impervious area (replaced, existing and new) is 63.91 acres. 10. Section III of the CP-1 regulations states, “The aggregate impervious surface coverage by all permitted uses, primary and accessory, shall not exceed 70 percent of the total CP-1 zoned property.” The “Impervious Area Exhibit” prepared by ESM, September 9, 2017, shows the existing impervious coverage in the CP-1 zone is 8.6 percent and the construction of the proposed project would increase it to 24.1 percent. We believe that the exhibit is now outdated based on recent project changes. Revise/update the exhibit to match the current proposal. Ms. Lisa Klein November 11, 2021 Page 4 The Impervious Area Exhibit has been updated to match the revised project and now reflects an aggregate impervious surface coverage of 22.4% of the CP-1 zoned property. Managed Forest Buffer, Landscape Plans, and Tree Retention Section III.B of the Exhibit C of the CZA states that a continuous Managed Forest Buffer (MFB) shall be provided around the entire perimeter of the CP-1 property. On November 18, 2018, the City issued Interpretation #18-01 (18-105277-UP) that describes the location and depth of the MFB on the CP-1 zoned property. Washington Forestry Consultants, Inc. prepared a Forest Management/Maintenance Plan dated March 23, 2020 (the WFC Plan) which was submitted together with qualifications information on the preparer. The WFC Plan describes the location and vegetation types and quantities for each of the MFB areas. In general, the WFC plan is acceptable, however the site plan revisions described herein will require revisions. 11. The CZA states a “Managed Forest Buffer shall be provided around the entire perimeter of the CP-1 property.” The CP-1 perimeter extends to the northeastern parcel along the North Lake shoreline (Lot F on EX-01), which is the lot currently proposed to contain a stormwater pond and wetland mitigation area, and where a Managed Forest Buffer (MFB) is not provided. The east boundary of the northeastern parcel is adjacent to single-family zoned land (including the adjacent access road, which is zoned single-family). The property zoned for single-family is currently owned by Washington Department of Natural Resources and used for a boat launch and public access for fishing, which is an incompatible use to the CP-1 zone. The CZA provides that a 50-foot MFB is to be provided adjacent to incompatible use. Provide a 50-foot MFB on the east boundary of the northeastern parcel. Update the Forest Management/Maintenance Plan to include this area. A 50’ width Managed Forest Buffer has been added the east boundary of the northeast parcel, which is no longer part of this project. 12. Section III.B.4 of the CZA describes that widening of rights of way “shall not require relocation of any boundaries of the required Buffer for developed lots” (emphasis added). Section VIII.A.8 of the CZA describes that only perpendicular access roads are permitted in the MFB. The northern 25-foot MFB shall be located outside of the 106-foot Development Reservation area that is to be dedicated for right of way. We respectfully remind the reviewer that the City previously addressed this issue in Interpretation #18-01. In Interpretation #18-01, the City stated: Ms. Lisa Klein November 11, 2021 Page 5 This interpretation is final and binding. The 25-foot MFB is to be located on the land reserved for future right-of-way. We also remind the City that the extension of S 324th Street is not necessary to mitigate project impacts and future dedication cannot be required without compensation. Compensation, in the form of TIF credit, is required for any future right-of-way dedication. The applicant submitted an application for TIF credit on 9/11/18 and respectfully requests a decision be issued. 13. The screening of the truck bays on the north side of Building A to the future right of way and properties to the north requires enhancements. The WFC Plan describes the western half of this area as containing Forest Cover Type III. Forest Cover Type III is described in the WFC Plan as being poorly stock with 30 trees per acre and containing large gaps where shade tolerant conifers such as western red cedar could be planted. Interplanting with a shade tolerant tree species would improve this buffer over time and scree the truck bays from the future right-of-way. The landscape plans shall be revised to include the addition of shade tolerant tree species within Forest Cover Type III located within the northern 25-foot MFB that infill the existing trees. Per Section XI.A.3 of the CZA, the selection and installation of plant material in the MFB shall be the responsibility of the Forester. A letter approving the landscape plans for this specific area shall be provided by WFC. If the 106’-wide buffer is not adequate to screen the truck bays of Building 1, the project Forester will specify planting of shade tolerant tree species. No additional MFB is required as explained in Comment #12 above. 14. The Tree Retention Plan Sheet TR-01 is not consistent with the grading plans SD-01 and SD-02, the Visual Impact Exhibit, or the landscape plans. It depicts no tree retention adjacent to Weyerhaeuser Way South between the road and new buildings. The Grading Plans, however, depict that a large portion of the landscape buffer in this area will not be graded, which would allow for tree retention. The grading plans also depict greater potential for tree retention around the south and west sides of Buildings 2 and 3 and stormwater ponds 4 and 5 than shown on Sheet TR-01. The Visual Impact Exhibit also depicts the retention of the mature vegetation in these areas. The landscape plans depict new plantings in these areas to supplement the native vegetation. Per Section XI.A.1 of the CZA, all portions of the property not used for Ms. Lisa Klein November 11, 2021 Page 6 buildings, future buildings, parking, storage, or accessory uses, and proposed landscaping areas shall be retained in a “native” or predeveloped state. Revise Sheet TR-01 to match the grading plans, landscape plans, and Visual Impact Exhibit. All plans need to be consistent. The plans have been updated to reflect retention of native vegetation and supplemental planting in areas that are not being graded for the project. Site Plan 15. Provide all easements to be retained and new easements proposed on the site plan sheets to determine any potential conflicts. The easements have been added to the site plan sheets. 16. Sheet EX-01 depicts a small, dashed line setback from the north and eastern perimeter of Parcel F. Identify the purpose of the line. The setback has been identified on this sheet as the Managed Forest Buffer. Visual Impact Exhibit 17. The following modifications to the Visual Impact Exhibit are required: a. Update the exhibit to reflect the current site plan. Revise the building references in the exhibit to correlate with the site plan for ease of reference (i.e., number designations instead of letters). b. Provide additional view locations as depicted below in Figure 1 depicting the change in view resulting from tree removal and the site development. The visual impact exhibits have been updated to reflect the current site plan including the tree buffer along the meadow, the ponds, and wetland locations. Additional visual impact exhibits have been provided as requested. Building Elevations and Design Brief The site and building design are required to comply with the CZA, and, where indicated, the FWCC. The specific CZA and FWCC design requirements affecting development of the property are stated below in “a – d” followed by staff technical comments as to how they apply to the Woodbridge Business Park: a. “The property is unique in terms of its development capacity and natural features. Weyerhaeuser desires to develop its property with maximum flexibility which will ensure optimal development, while preserving the unique natural features of the site.” b. “CP-1 properties are characterized by large contiguous sites with landscape, open space amenities, and buildings of superior quality. The property appropriate for such uses is unique and demands for such uses are rare. Consequently, special land use and site regulations are appropriate.” Ms. Lisa Klein November 11, 2021 Page 7 Staff Analysis: The CZA’s meaning and intent to “preserve the unique natural features of the site,” as described in “a,” is critical in understanding how the CP-1 properties are to be developed. Understanding the intent of “a” is assisted by the additional characterizations of the site provided in “b,” i.e., the unique natural features to be preserved are the unique “landscape and open space amenities.” The CZA intent is to preserve the meadow, a unique landscape feature that provides an open space amenity. Also, to be preserved is the Managed Forest Buffer and the forest/native vegetation located outside of the development footprint (described below in (d.A.1)), which form the landscape. The preservation of these areas will allow for “optimal development” of the site. Provision “b” further describes the existing condition of the CP-1 properties as containing buildings (such as the headquarters building and WTC building) that are of superior quality. It acknowledges that the site is unique and deserves “special land use and site regulations.” The special regulations include regulations that require new buildings be of superior quality and that the development preserve the unique natural features. How the intent of the CZA is specifically applied to the proposal is provided below. c. Section X General Development Conditions: “Provisions of the FWC relating to façade measurement, modulation, distance between structures, or materials, other than those specified herein, shall not apply to this zone.” Staff Analysis: This provision is clear that prescriptive building design requirements typically found in design standards do not apply. Removal of specific design standards requires reliance upon the existing buildings and landscape for guidance in determining the intent of superior building design. d. Section VI.B requires that proposed landscaping comply with Section XI (Landscaping). Section XI provides specific modifications to Chapter 22, Article XVII (Landscaping) that are applicable in the CP-1 zoning district, including: o A.1 “All portions of the property not used for buildings, future buildings, parking, storage or accessory uses, and proposed landscape areas shall be retained in a “native” or predeveloped state. Alterations to existing landscaping shall match or be compatible with existing vegetation.” o A.2 “Alterations to existing landscaping in connection with new development shall match or be compatible with existing vegetation. Extensions of, or duplication of existing plant material in connection with future development is preferred.” Staff Analysis: These provisions clearly intend for the existing vegetation to be retained to the greatest extent possible, and, when required to be removed for future buildings, parking, storage or accessory uses, the replacement plantings shall match or be compatible with existing vegetation. Provision “a” identified by staff is part of Recital C in the CZA. Provision “b” identified by staff is part of “Section I. Purpose and Objectives” in Exhibit C of the CZA. We respectfully remind the City that, in response to a motion filed by both the applicant and the City, the City’s Hearing Examiner previously ruled that the Recitals and purpose statements are not regulatory. The Examiner ruled: “CZA recitals do not serve as development restrictions on the property” and “Zoning district purpose clauses do not serve as development restrictions on the project site.” Please see page 8 of the Ruling on Motion for Partial Dismissal included with this submittal. Ms. Lisa Klein November 11, 2021 Page 8 18. Based on the CZA requirements and the staff analysis described above, we have the following comments on the building and site design: a. As previously commented by the City, the site and building design, as viewed from the high-profile public street roundabout, do not represent “buildings of superior quality” or an “altered site that matches existing vegetation.” We understand you have reduced the size of Building 2 and pulled it away from the public right-of-way; however, the concerns remain that at this prominent location, the combination of the proposed tree removal for the storm pond, proposed plantings, and the building aesthetics do not meet the CZA requirements. The following would improve the building and landscaping aesthetics at this location and better comply with the CZA. The city is open to alternatives that provide an equivalent or superior approach to site and building design i. Construction of storm pond #5 and its maintenance access road requires removal of mature vegetation and limits the planting of replacement vegetation that would otherwise screen the building. Relocation of the storm pond maintenance access road to a location that extends from the parking lot instead of Weyerhaeuser Way would allow the existing trees in that location to remain and new trees to be planted along this prominent frontage for additional screening. Relocate the pond maintenance access road to minimize tree removal. Provide additional trees between Weyerhaeuser Way and the stormwater pond for building screening. The plans have been updated to move the pond access road and include additional plantings in this location. ii. The landscape plans provide new evergreen tree plantings between the street frontage and storm pond #5; however, the landscape plans do not indicate tree sizes. The City will require that the trees at this location be at least 10 feet in height at the time of planting. Add this note to the landscape plans. The plan note for this area has been revised to include the requirement that all trees between Detention Pond #5 and Weyerhaeuser Way are 10’ minimum height at the time of planting. iii. The southeast corner of Building 2 marks the entry point to the new campus and this corner is not architecturally emphasized. Consider mimicking the building corner treatments provided at the main building entry at the northeast corner and/or the entry at the southwest corner or provide other architectural building elements that enhance building design at this high-profile location. The SE corner of Building 2 does include the architectural entry feature as indicated in the design brief elevations. The east wall of Building 2 including the SE and NE corners will mimic the west elevation as noted on Sheet A1.0. b. As provided above, the meadow is a “unique natural feature of the site that is to be preserved.” In order for the meadow to be preserved/retained in its native/predeveloped state, the City will require the meadow be protected from Ms. Lisa Klein November 11, 2021 Page 9 development through the recording of a conservation easement. This will be a condition of approval. The CZA prohibits the City from imposing this condition. Specifically, Section 13 of the Development Agreement states (emphasis added): c. The City is concerned about view impacts from Interstate 5 as a result of the pond and building construction. If view impacts are not adequately mitigated, the City may determine that a SEPA Determination of Significance is appropriate and an EIS will be required. The following comments provide our analysis of the impacts and potential opportunities to mitigate the impacts. Additional analysis will likely be required following plan changes and receipt of the updated View Impact Analysis to evaluate if the impacts are adequately mitigated. A minimum 50-foot-wide tree buffer will be maintained along the edge of the meadow to buffer the view from Interstate 5. The Forester will review all project buffers at the time of construction and require additional plantings to further mitigate any view impacts. i. The Visual Impact Exhibit demonstrates that Buildings 2 and 3 will be visible from Interstate 5, impacting the view of the site across the meadow, a “unique natural feature of the site” that, per the CZA, shall be preserved (see staff interpretation above). The retention of the existing trees between the meadow and the buildings provides some screening of the building, however the screening is limited. The existing vegetation that is to remain at this location is narrow in width (particularly at the south end) in the existing condition, and these trees are largely deciduous trees, which will result in significantly less screening during the fall and winter than what is depicted on the Visual Impact Exhibit. Additionally, the height of Building 2 will clearly exceed the height of the retained trees as viewed from Interstate 5. Additional screening is required. One option could be to plant additional evergreen trees of a type that will exceed the height of the building at maturity. If this option is selected, WFC (the forester) shall recommend a suitable tree type for this location that will grow quickly and that will eventually exceed the building height. The new trees shall be no less than 10 feet Ms. Lisa Klein November 11, 2021 Page 10 in height at the time of planting. The City is open to considering other options at this location. The selected screening shall be depicted on the revised View Impact Analysis. Additional evergreen planting will be provided between the existing meadow and the proposed development if necessary. ii. Storm Pond #3 is partially located within the northern portion of the meadow and in an area where the adjacent managed forest buffer is also meadow (i.e., has no trees in its natural predeveloped condition). Construction of Storm Pond #3 will therefore impact the meadow, which is not acceptable as described above, and will require removal of trees that could otherwise provide screening of the rear elevation of Building 3 as viewed from Interstate 5. Storm Pond #3 shall be relocated (potentially placed in an underground facility) so as not to impact the meadow or screening of Building 3 as viewed from Interstate 5. Alternatively, you may propose relocation of the above ground pond in a manner that demonstrate that view impacts will be mitigated. See response to comment 18.b above and note that the pond has been relocated to maintain a 50-foot buffer along the meadow. iii. Storm Pond #2 is located between the 100-foot-wide Managed Forest Buffer adjacent to Interstate 5 and the palustrine-forested and scrub- shrub wetlands located adjacent to the rear side of the existing WTC building. The rear side of the WTC building contains a storage yard and loading area that is not visible from Interstate 5 today and the rear and south building elevations have deteriorated and have no modulation or architectural elements that are required for buildings of superior quality that will be visible from a public right of way. Construction of Pond #2 will require removal of a 145 – 170-foot-wide swath of mature trees and native vegetation that will open the view of the south and rear elevations of the existing WTC building. The remaining vegetation will be the 100-foot wide Managed Forest Buffer (which is partially meadow grass and transitions to forest to the north) and the sparsely vegetated wetlands and wetland buffers. The following menu of potential options for screening and mitigating view impacts caused by Storm Pond #2 shall be considered and depicted on the View Impact Analysis for additional review. Alternatively, you may propose relocation or redesign of the pond in a manner that demonstrates that view impacts will be mitigated.  Provide additional plantings in the Managed Forest Buffer. The forester shall provide recommendations for the additional plantings that retain the integrity of the “native” or predeveloped conditions” of the MFB and are planted so as to provide additional screening. New plantings shall be evergreen trees that are at least 10 feet in height at the time of planting.  Provide additional screening of the rear side of the WTC building by augmenting the wetland buffer plantings with additional evergreen trees that are at least 10 feet in height at Ms. Lisa Klein November 11, 2021 Page 11 the time of planting. Provide documentation that the additional plantings have been approved by the wetland biologist.  Provide additional landscape screening within the reconfigured rear parking/storage area of the existing WTC building. The screening would need to be of a depth and type that provides effective screening.  Modify the rear and south elevation of the existing WTC building to provide architectural treatments that are complementary to the new buildings and represent “superior quality.”  Relocate or redesign Storm Pond #2 to retain the trees in this area. In lieu of an open pond, consider an underground facility in the parking areas. The proposed ponds have been relocated to reduce the impact and removal of existing screening and vegetation. The revised plans result in a minimum 50- foot-wide tree buffer along the meadow, which will be maintained, and supplemental plantings added to reduce the visual impacts from Interstate 5. d. The overall design of the buildings is not representative of the CZA requirement that the buildings be of superior quality. The existing campus and the headquarters and WTC buildings provide guidance as to what was intended by “superior quality.” Additionally, when multiple buildings are provided on the same site, they should create a unified, campus-like development (a current code requirement but a common prerequisite for a site with multiple buildings). The existing headquarters and visible sides of the WTC buildings are relatively timeless in their design (i.e., not trendy), with strong horizontal and rectangular lines and a significant amount of glazing. The proposed building design, however, is not complementary to, or reminiscent of the existing buildings. The mountain-themed paint scheme serves to break up the façade but does not correlate to the existing buildings or legacy of the site, which is more about trees and timber than mountain views. Staff recommends elimination of the mountain paint scheme, expansion of the vertical wood panels and incorporation of additional windows to improve the building’s quality of design, and to provide a more complementary design to the existing buildings and a design that is representative of the legacy of the campus and of superior quality. See response to comment #17. The design intent matches what has been previously approved for Woodbridge, Buildings A & B, which was found to meet the requirements of the CZA. Wetlands and Streams 19. Review and address each comment in the enclosed January 25, 2021, review letter from the City’s wetland consultant, ESA. Please see the separate letter prepared by Wet.Land, dated October 10, 2021 for responses to all of the comments provided by the City’s wetland consultant. Ms. Lisa Klein November 11, 2021 Page 12 20. Add the North Lake 200-foot Shoreline Management Zone to the plans, including the area where improvements are planned to Weyerhaeuser Way (near Wetland BL) and, if required, submit for a Shoreline Substantial Development Permit. See the ESA letter, comment #10, for more details. The 200-foot Shoreline Management Zone has been added to the plans, resulting in a very small portion of the proposed improvements to Weyerhaeuser Way S being located within the Shoreline Management Zone. A Shoreline Substantial Development Permit will be submitted to cover these roadway improvements under separate cover. SEPA Checklist 21. The revised SEPA checklist does not reflect all of the plan changes and additional environmental information that has been prepared or updated. Update the SEPA Checklist to reflect the updates and revisions made to the project. In particular, the following is noted as needing to be updated: a. Update the environmental information listed in A.8 to reflect revised/updated studies and newly completed studies. b. See the ESA comment letter on the review of the Talasaea Critical Areas Report and Proposed Mitigation Plan dated April 9, 2020. Update the SEPA Checklist in accordance to any updates/revisions made to the Critical Areas Report. In particular, if a shoreline permit is required, update the list of government approvals provided in A.10. c. Include the wetland impacts and mitigation proposal in the project description in A.11. d. Update the wetlands information provided in B.3 and B.8.h to match the updated Critical Areas Report and Mitigation Plan dated April 9, 2020, or as updated based on ESA comments. The statistics provided appear out of date. e. Update B.7 to address the existing pipelines (see Technical Review memo from the Public Works Department dated November 3, 2020). f. Update B.10.b and B.10.c to address altered views from Interstate 5 and how the view impacts will be mitigated. g. Are measures proposed to control light and glare impacts? Amend section B.11 to address proposed light and glare mitigation measures. h. Provide further clarification of what is meant by your intent to reconfigure onsite trails in Section B.12. Which trails will be removed, and which will be reconfigured to avoid dead-ends? Your comment response letter dated April 2, 2020, indicates that many of the trails throughout the property will be retained in accordance with the CZA purpose statement (your Comment 5). Please clarify. i. Update section B.13. Include a description of the Cardno Cultural Resources Study dated March 16, 2018 and address the findings. The SEPA checklist has been updated to reflect all the plan changes and additional environmental information that has been prepared. The updated checklist is attached with this resubmittal. 22. The Cardno Report did not include information regarding correspondence with DAHP or the Tribes. Your letter responding to public comments indicates in Item 4 that the report will be submitted to DAHP. Did you provide a copy of the report to DAHP for their comment? If so, provide copies of all correspondence and/or comments that were received following DAHP’s review of the Cardno report. Ms. Lisa Klein November 11, 2021 Page 13 Cardno completed a reconnaissance-level survey within the entire former Weyerhaeuser Corporate Headquarters campus. The reconnaissance-level survey evaluated the historical significance and National Register eligibility of the campus. Michael Houser and Holly Borth of the DAHP discussed the historic district with Cardno via video conference on April 10, 2020 and during an on-site visit on June 24, 2020. The DAHP correspondence that concurred that the Weyerhaeuser Corporate Headquarters Historic District was eligible for listing in the NRHP at the national level of significance on October 21, 2020 is included with this resubmittal. Comments from Kevin Peterson – Public Works Development Services, (253) 835-2734, Kevin.peterson@cityoffederalway.com Prior to Land Use approval, the applicant shall address the following Technical Review comments: Use Process 23. Provide a breakdown of impervious surfaces on the site plan cover sheet: total impervious area for the entire project, total new impervious area (as defined in the King County Surface Water Design Manual - KCSWDM), and total replaced impervious area. The breakdown has been added on the site plan cover sheet. 24. Based on the Boundary Line Adjustment (BLA) currently under review for this project, it appears that Pond 1 is isolated on a separate parcel, without adequate space to locate a building, and therefore cannot be allowed as it does not create a ‘buildable lot’, as defined in FWRC Section 19.105.010. In addition, it appears that the current proposed BLA property lines may either cross through or are very close to Ponds 2 and 3. These ponds shall be located completely within property boundaries and meet property line setbacks as required in the design criteria of the KCSWDM. Clearly show the proposed new property lines that are delineated on the BLA(s) currently under review with the City. The prior BLA applications (File Nos. 20-10116 and 20-103511) have been withdrawn. We anticipate a condition of approval of this Process IV application will be to process a BLA concurrent with building permits to align property lines with the final configuration of the development. 25. Pond 5: Access to this pond shall be provided on-site, no access allowed from either S 336th St or Weyerhaeuser Way S. Access to Pond 5 has been provided from within the site. 26. It is difficult to see what, if any, Solid Waste & Recycling amenities are being provided. Show and/or otherwise indicate on the plans where the SW&R facilities are located and provide some basic design details on the enclosures. There are large trash enclosures located at each building. These will be utilized for Solid Waste and recycling. The typical design can be found on Sheet A1.0. Additional waste and recycling area’s will be provided within the buildings as part of future tenant improvements. Ms. Lisa Klein November 11, 2021 Page 14 27. Street trees shall be 2.5-inch caliper, per City standards. Street trees are specified in the Plant Legend as 2.5-inch caliper, as required per City standards. Technical Information Report (TIR) 28. Based on the information provided, it appears the project is under the threshold for Large Project Drainage Review and is now subject to Full Drainage Review requirements of the 2016 KCSWDM. This comment has been noted, Full Drainage Review is now specified in the Project Overview of the TIR. 29. There appear to be essentially 2 primary threshold discharge locations – 1 to the south and into the Weyerhaeuser Pond and 1 to the east into North Lake, which eventually discharges into the Weyerhaeuser Pond. In the Existing condition, approximately 24 acres of the site discharges to North Lake, yet in the Developed condition, it appears only 13.14 acres are discharging to North Lake, with the remainder discharging to the Weyerhaeuser Pond. The requirement is to maintain, as closely as possible, the hydrology to each discharge location so as not to create adverse impacts by increasing or decreasing flows to one basin or the other. The existing 24-acre basin will change shape from existing to developed conditions, but the overall area of the basin tributary to North Lake will remain generally the same. As shown on the Developed Basin Map in Appendix A of the TIR, there is an area of approximately 4.7 acres that was originally part of the 24-acre basin that will now drain to the Weyerhaeuser Pond. To make up for this difference an area of 3.0 acres was added to Basin 1, leaving 1.7 acres of difference between the original 24-acre basin and the proposed 22.3-acre basin. To bring the system back into balance, up to an additional 1.7 acres of building roof will be reallocated from Basin 2 to Basin 1 during final design (based on the currently proposed site layout) to maintain the 24-acre basin total that drains to North Lake. 30. The report indicates that an additional 3.43 AC-FT of live storage from this project is being directed to the Weyerhaeuser Pond on the old headquarters building site: a. Provide an estimated depth of water that will be added across the existing pond (i.e., x.xx-feet +/- depth of water added across the existing pond surface; existing WS Elev=xxx.xx’, New WS Elevation=xxx.xx’). The TIR narrative and calculations have been revised to send 3.68 acre-feet of live detention volume to the Weyerhaeuser Pond which has a mean water surface area of 8.07 acres. The increase in ponding depth of the Weyerhaeuser Pond during the 100-year storm event (conservatively not taking into account the slope of the shore at the waterline) would be approximately 0.46-feet (5.5-inches) across the existing pond surface. The increase in water elevation is from 356.5 to 356.96. This increase in volume and associated ponding depth is acceptable because it is less than the design capacity of the previous adjustment. Ms. Lisa Klein November 11, 2021 Page 15 b. Provide a copy of the approved and/or as-built plans for the 2004 headworks modification to the Weyerhaeuser Pond. A copy of the plans has been included with this submittal. These plans were printed from AutoCAD to PDF, but ESM does not currently have the official approved plans (dated July 13, 2004) or as-built plans. We do have additional project documentation available if needed, including City project number 04-101908, the storm drainage report, as well as communication correspondence during construction. 31. Pond 2, as currently designed, has a detention capacity greater than 10 acre-feet with an impounding berm over 6-feet in height. As such, this detention pond will need to comply with the State Department of Ecology regulations and review process for dam safety (KCSWDM Section 5.1.1, WAC 173-175) – this should be identified in the TIR. The Pond 2 detention storage volume has been reduced to 9.32 acre-feet to fit the revised project and is now below the threshold necessitating dam safety review and compliance. 32. The WWHM analysis for Pond 5 shows it to FAIL. The analysis needs to indicate the facility to PASS, and the pond shall be designed and analyzed to meet the PASS condition. Otherwise, provide a narrative in the TIR that provides an explanation of the Pond 5 analysis FAIL condition. Pond 5 has been revised to show a Pass condition in the WWHM output with a modeled volume of 5.40 acre-feet. Pond 5 detention volume was then reduced to 1.72 acre-feet to send 3.68 acre-feet downstream to Weyerhaeuser Pond and the Pond 5 control structure was revised to attenuate the intermediate flows generated from the split detention volume. 33. From the November 2017 pre-application meeting summary letter: ‘...the site is near an identified Sphagnum Bog (Core Requirement 6.1.4 of the KCSWDM). The applicant’s engineer shall demonstrate in their storm water technical analysis if and/or how the project does (or does not) impact this bog, and the means of providing water quality treatment to meet the Sphagnum Bog treatment criteria if storm water runoff affects the bog.’ Based on the topographic mapping provided, it appears that some portion of the site, at the NE corner, does discharge into the Bog, including a portion that is being developed with parking and drive aisles. Please provide the analysis as requested from the pre-application meeting summary. Figure 1.2 has been updated to show the drainage basin outline that goes to the identified Sphagnum bog. The developed site has been designed such as to direct all proposed impervious areas to detention and water quality treatment facilities. Specifically, the pollution generating impervious area at the NW corner has been designed to discharge to Pond 2. 34. The TIR must also examine the Hylebos Executive Proposed Basin Study and the projects impacts upon the East Hylebos recommendations and the Basin Wide recommendations. The TIR shall include a section that provides an analysis of the project and how it meets the requirements of - and/or does not further impact - drainage-related issues that are identified in the study. A memorandum has been added to the TIR (Appendix C) that addresses this comment. Ms. Lisa Klein November 11, 2021 Page 16 SEPA 35. According to the plans and survey provided, as well as project materials reviewed by the City in the immediate vicinity of this site (and unrelated to this project), there is a buried, 14-inch Olympic oil pipeline that runs through the west side of the project site. There may also be a buried gas main that extends south through the northeast portion of the site. These 2 pipelines shall be disclosed/identified under section B.7.a.2 of the SEPA checklist, with proposed measures to protect these pipelines under section B.7.a.5 of the checklist. The SEPA Checklist has been updated to reflect these 2 pipelines running through the project site. Comments from Sarady Long – Public Works Traffic Division, (253) 835-2743, sarady.long@cityoffederalway.com The Public Works traffic Division has finished its review of the submitted materials. The following technical review items must be address. Please note, these comments did not include comments from WSDOT. Traffic related comments/concerns by WSDOT must be addressed and approved by WSDOT. Plans Comments 36. The submitted plans depicted the correct Type K street section and right-of-way dedication for S 336th St and Weyerhaeuser Way S. However, the plans did not show street improvement and potential right-of-way dedication at the S 336th St and Weyerhaeuser Way S roundabout. ADA compliant pedestrian facilities must be provided at the roundabout. Unless a street modification is approved by the Public Work Director, the submitted plans must show improvement at the roundabout. No dedication is necessary for the roundabout at S 336th St and Weyerhaeuser Way S, and ADA compliant pedestrian ramps have been added to the plan set. Street improvements tie into existing prior to the S 336th Street Roundabout. Additional details of these designs will be provided during the construction document review process at a later date. 37. Provide a truck turning diagram to ensure the roundabouts on Weyerhaeuser Way S can accommodate the expected trucks. Truck traffic is anticipated to enter/exit the site from the north; therefore, no new truck traffic is anticipated to utilize these roundabouts. In the rare case that a truck exits the site to the south, we have verified the adequacy of the roundabouts and confirmed they can handle a WB-67 truck. 38. Pavement design and upgrade may be necessary on Weyerhaeuser Way S and S 336th St in order to accommodate the expected truck traffic generate by the proposal. The applicant must perform pavement evaluation demonstrating that the standard pavement section for a Type “K” street is adequate to handle the expected traffic load generating by the proposal. Ms. Lisa Klein November 11, 2021 Page 17 Please refer to the GeoEngineers Pavement Analysis report dated August 16, 2021 included with this resubmittal. 39. The proposed northerly driveway must meet separation distance from the future S 324th St and Weyerhaeuser Way S intersection. Please coordinate with the City Center Access Study team to determine the future intersection and S 324th St alignment. The applicant is coordinating with the City Center Access Study team. The future alignment of S 324th Street and its intersection with Weyerhaeuser Way S have not been approved. The northerly driveway meets separation distances with the current design of this future intersection. The City may not delay or condition the Project based on a future, as yet undetermined condition that is not caused by the Project. 40. Submit a Vehicle Turning Diagram to the Public Works Traffic Division showing how the appropriate design vehicle can enter, maneuver, and leave the site without encroaching onto opposing traffic lanes or mounting a curb. Please note, the maximum driveway width is 30 feet for a two-lane two-way driveway and 40 feet for a three-lane two-way driveway (FWRC 19.135.270). Driveway widths may be increased or modified to radius driveways in order to provide adequate width for vehicles that may be reasonably expected to use the driveway, as determined by the Public Works Director. TENW has provided a separate AutoTurn memo that concludes our analysis for trucks entering/exiting the site. All driveways are able to accommodate a WB-67 truck. 41. Show conceptual street lighting along the property frontage on S 336th St and Weyerhaeuser Way S on the plans. Details design is not required at this time. Preliminary pavement marking & illumination has been included in the submittal plan documents. Additional details of these designs will be provided during the construction document review process at a later date. 42. The depicted 25’wide manage forest buffer should not be within the proposed 106’ development reservation (right-of-way) for future S 324th St extension. See response to Comment #12. TIA Review Comments 43. Page 3 – The TIA identified the project buildout in 2022. However, the concurrency application identified 2023 buildout. Please address this discrepancy. The buildout year has been updated to 2023 in the Woodbridge Business Park Updated TIA dated September 3, 2021. 44. Table 1 Page 7: Revise Weyerhaeuser Way S from S 320th St. to S 336th St classification to a Minor Arterial instead of a Principal Collector. The remaining portion from S 336th St (Roundabout) to SR 18 is classified as a Minor Arterial. This comment has been addressed in the Woodbridge Business Park Updated TIA dated September 3, 2021. Ms. Lisa Klein November 11, 2021 Page 18 45. Page 7 – Transit Service: Add King County Metro Route 181 on S 320th St approximately 1/4 mile north of the site. Coordinate with Pierce Transit for any on site transit related improvements requirement. This comment has been addressed in the Woodbridge Business Park Updated TIA dated September 3, 2021. 46. The TIA need to clarify or provide narrative on how the proposed ITE LUC 130 (Industrial Park) is applicable to the development. From a technical perspective, the City concurs with using the Transportation Institute Engineer (ITE) Trip Generation Manual 10th Edition LUC 130 (Industrial Park) to estimate the trip generation for the development. Since the actual tenant(s) is still unknown, Industrial Park land use consisted of manufacturing, service, and warehouse facilities is appropriate. Please note, additional analysis may be required if the trips generated by the actual uses exceed the trips identified in the traffic report. The Woodbridge Business Park Updated TIA dated September 3, 2021 includes language regarding the use of ITE LUC 130 (Industrial Park) given the uncertainty about the future tenant of the proposed project. 47. The TIA appears to utilize the same truck trip percentage for all analysis periods. Clarify if the truck trip percentage from ITE Trip Generation Manual is specifically for all analysis periods (weekday, AM, PM, and Saturday). If not, the TIA should address how the proposed 15 percent truck trips would be applicable to all analysis periods. The Woodbridge Business Park Updated TIA dated September 3, 2021 includes an updated trip generation estimate for trucks based on truck trip rates documented in the ITE Trip Generation Manual 10th Edition Supplement dated February 2020. 48. The proposed 2 percent annual traffic growth rate is acceptable. Comment noted. 49. The proposed pipeline trips from surrounding developments such is acceptable. However, the TIA should provide a separate figure or spreadsheet of these trips for tracking purposes. Comment noted. The Woodbridge Business Park Updated TIA dated September 3, 2021 includes a separate figure showing the pipeline project trip assignment. 50. Page 14 – Project Trip Distribution and Assignment: Provide clarifications on the AM, weekday, and Saturday trip distribution. The narrative of the project trip distribution and assignment appears to indicate that the AM, weekday, and Saturday project trips distribution is generated and provided by the City. The Emme model plot provided by the City is based on PM only with no distinction between car or truck trips. The Woodbridge Business Park Updated TIA dated September 3, 2021 includes additional language about how the City’s Emme model plot was used to distribute project trips during the analysis periods. Ms. Lisa Klein November 11, 2021 Page 19 51. The adopted City Center LOS is based on average V/C and not individual V/C ratio of each intersection. Provide narrative to clarify why other intersections in the City Center were not included. The Woodbridge Business Park Updated TIA dated September 3, 2021 includes additional language regarding the analysis at City Center intersections. 52. The report identified all site access locations would operate at LOS D or better with v/c less than 1.0. Provide right turn lane warrant analysis for truck access and storage pocket at driveway with the highest volume. The Woodbridge Business Park Updated TIA dated September 3, 2021 includes right turn lane warrant analysis. 53. The AM and PM LOS analysis for S 320th St and 32nd Ave S is showing cycle length of 173 seconds. The cycle length should not exceed 160 seconds. The Woodbridge Business Park Updated TIA dated September 3, 2021 addresses this comment. 54. Show critical movement for Stop controlled intersections. For example, Weyerhaeuser Way S and S 323rd St is showing 0.00 v/c ration, but the NBT and SBT has 0.10 v/c ratio. The Woodbridge Business Park Updated TIA dated September 3, 2021 addresses this comment. 55. The trip assignment in Figure 6 through 8 depicted truck trips utilizing non truck routes and traveling through residential neighborhood. Revise the truck trip assignment at intersection 5, 7, 9, 10 and 12 and recalculate the LOS for AM, PM, and Saturday. For example, intersection #9 in Figure 6 depicted 5 truck trips west of the S 336th St and Weyerhaeuser Way roundabout, which has been designated no truck except for local deliveries. Also, intersection #7 (32nd Ave S & S 323rd St) has 18 truck trips going through the office complex roundabout. These truck trips should be reassigned to intersection #6 (S 320th St & Weyerhaeuser Way S). The Woodbridge Business Park Updated TIA dated September 3, 2021 includes a revised truck trip assignment. Few, if any, truck trips are anticipated to travel to/from the west of the site on S 336th Street for local deliveries. Currently Weyerhaeuser Way restricts trucks greater than 30,000 pounds (gross vehicle weight) except for local deliveries. Some truck traffic in the updated TIA was assigned to/from the south on Weyerhaeuser Way based on existing travel patterns and future travel patterns estimated in the local traffic model. This provides a reasonable evaluation of traffic impacts on Weyerhaeuser Way to the south since some smaller trucks (less than 30,000 gross vehicle weight) are anticipated to be generated by the Business Park. Ms. Lisa Klein November 11, 2021 Page 20 To ensure that trucks generated by the Business Park that greater than 30,000 gross vehicle weight do not use Weyerhaeuser Way to/from the south, a condition may be placed on the project to limit or restrict truck use, similar to the conditions placed on the Building A project. 56. Intersection #2 (25th Ave S & S 320th St) – Change pm+pt to D.P+P. The Woodbridge Business Park Updated TIA dated September 3, 2021 addresses this comment. 57. Intersection #5 (32nd Ave S & S 320th St) – Change EBL and WBL from pm+pt to D.P+P. The Woodbridge Business Park Updated TIA dated September 3, 2021 addresses this comment. 58. Intersection #6 (Weyerhaeuser Way S & S 320th St) – Change WBL from pm+pt to D.P+P. The Woodbridge Business Park Updated TIA dated September 3, 2021 addresses this comment. 59. Table 6 on page 16 (Future 2022 Weekday Peak Hour Level of Service Summary): Some of the study intersection does not match with Figure 10-13. For example, intersection #6 in Table 6 depicted as Pacific Highway S / S 336th St. Update Table 6 to match Figure 10-13. The Woodbridge Business Park Updated TIA dated September 3, 2021 addresses this comment. 60. Weyerhaeuser Way Assessment – The City concurs that the 2022 future with project is expected to meet the minimum street design standards for a Type K street. Comment noted. 61. Traffic impact fee for commercial developments, fees shall be calculated based on the impact fee schedule in effect at the time a completed building permit application is filed and paid prior to permit issuance. See response to comment #12 regarding TIF credit. 62. The City has determined that the S 320th St. / SR 5 and Weyerhaeuser Way S / SR 18 ramps intersections are located within WSDOT limited access. As such, WSDOT has jurisdiction over these intersection and its respective LOS standards shall apply. Any LOS failure and mitigation measures must be reviewed and approved by WSDOT. Comment noted. 63. Forward update TIA to WSDOT for technical review comments. The Woodbridge Business Park Updated TIA dated September 3, 2021 has been forwarded to WSDOT for review. Ms. Lisa Klein November 11, 2021 Page 21 SEPA Checklist – Transportation 64. Transportation 14(c) – Revise this section to including right-of-way dedication of 106’ for future S 324th St extension. Comment noted. Please note the response to comment #12 regarding TIF credit. Comment in letter from Kevin Peterson – Sr. Engineering Plans Reviewer dated March 22, 2021 The owner is required to set aside a tract of land along the North boundary/Northwest corner of the property in order to accommodate the planned roadway known as the South 324th St Extension (also known as the City Center Access Project). The tract boundary(ies) should follow the limits of the proposed roadway alignment as it affects the IRG property, as depicted on the IRG Preliminary Road Design Plan Draft and which was presented in the March 1, 2021 Federal Way City Center Access Project – Presentation to IRG – Design Meeting PowerPoint presentation. The tract shall be set aside by way of the City’s Tract ‘X’ agreement, which is not considered a subdivision of land. The project has set aside a 106’-wide area to accommodate the City’s future extension of S 324th St. This can be accommodated as a separate tract once the final design of this roadway, including its intersection with Weyerhaeuser Way S are approved. Comments from Jessica Redman and Ilon Logan for the Critical Areas Report and Proposed Mitigation Plan Review Comments and Recommendations dated January 25, 2021 Please see the attached Response to City Comments letter by Wet.land, dated October 10, 2021. If there are any questions or a need for further clarification, please feel free to contact me at (253) 838-6113 and I would be happy to discuss them with you. Sincerely, ESM CONSULTING ENGINEERS, LLC ERIC G. LaBRIE, A.I.C.P. President \\esm8\engr\esm-jobs\1886\001\016-0016\document\letter-019.docx