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20-101386-Comment Response Letter-04-22-2021-V1 April 22, 2021 Job No. 1886-001-016-0015 Ms. Stacey Welsh, AICP Principal Planner City of Federal Way 33325 8th Avenue S Federal Way, WA 98003 RE: Permit #20-101386-CO Comment Letter #2 Woodbridge Building A; 3120 South 344th Street, Federal Way Dear Ms. Welsh: On behalf of Federal Way Campus, LLC, ESM Consulting Engineers, LLC, is submitting the following responses to the comment letter we received from you dated March 29, 2021 and the letter we received from Jessica Redman with ESA dated March 15, 2021. In an effort to provide concise and direct responses, we have copied the review comments below in italics and our responses are in bold. Community Development – Planning Division Stacey Welsh, 253-835-2634, Stacey.welsh@cityoffederalway.com 1. Conditions of Approval – Please address the comments in the enclosed Conditions Compliance spreadsheet. See attached Compliance Matrix for specific responses to each Condition of Approval. 2. Landscape Plans – In addition to any related items noted in the spreadsheet referenced in comment #1, please address the following comments: a) On Sheet LA-02, cite Federal Way City Code (FWCC) section numbers, not 19.125 from the Federal Way Revised Code (FWRC), for the Type I and II landscaping. The code section numbers have been revised. Ms. Stacey Welsh April 22, 2021 Page 2 b) On Sheet LA-08, correct the “total interior parking lot landscape area” calculations—see Section 10 of the Use Process III staff report including the footnote for further detail, in particular the 305 vs. 350 square feet. This is to ensure the required amount of parking lot landscaping is being provided. The calculations have been corrected. c) The landscaping plan (L-sheets) does not include any of the planned wetland buffer landscaping from the critical areas report (Sheets W.2-W-4). The planned wetland buffer landscaping from the critical areas report has been added. 3. Site & Civil Plans – The comment response letter states that two parking stalls were removed to incorporate required parking lot landscaping, with the landscaping plan updated accordingly. The site and civil plans were not updated to reflect this, including plan details and parking count. The parking stall count on sheet ST-01 has been revised. 4. SWPPP – On page 4 the document states that there are no known critical areas on-site, which is incorrect. The description for the critical areas has been updated. Public Works – Development Services Ann Dower, 253-835-2732, ann.dower@cityoffederalway.com 1. Conditions of Approval – Please address the comments in the enclosed Conditions Compliance spreadsheet. See attached Compliance Matrix for specific responses to each Condition of Approval. 2. Revise the general and drainage notes to read as shown in the current development standards, available on the City of Federal Way website. The notes have been updated. 3. On Sheet FR-02, label Ramp 5 correctly so there are not two ramps labeled “Ramp 4.” The ramp labels have been corrected. Ms. Stacey Welsh April 22, 2021 Page 3 4. The channelization plans are still in review by WSDOT and will need to be approved before building permit issuance. The WSDOT Channelization plan for the SR18 off-ramp revisions is being routed internally through WSDOT for signature. In addition, the WSDOT limited access limits ends just before the left turn pocket for the site on Weyerhaeuser Way. TENW shared the Pavement Marking Plans for the improvements within the City limits with WSDOT on April 19, 2021 for their awareness. WSDOT stated that they do not have any comments, as they do not have jurisdiction over striping outside WSDOT right-of-way. 5. On Sheet GR-01, clarify what the note regarding the pervious/impervious area at the bottom of the page is referring to since it does not match the TIR. The areas have been corrected to match the TIR. 6. On Sheet GR-08, provide the correct location of the sediment pond table noted next to the sediment pond detail. The location of the sediment pond tables has been corrected. 7. Conditions of Approval item 26, a through o, noted in the report to the Hearing Examiner requires certain actions and reporting during construction. Place this condition on the plans so that both the contractor and inspector are aware of these requirements. The conditions have been added on sheet CV-01. 8. Conditions of Approval items 27 through 34 as noted in the report to the Hearing Examiner must be resolved with the Traffic Division before issuance of a building permit or as otherwise noted in the condition. See attached Compliance Matrix for specific responses to Conditions of Approval 27 through 34. 9. Condition of Approval item 36 requires the use of Best Management Practices (BMPs) as part of the required stormwater detention system. The TIR states on page 35 that further geotechnical field investigation is needed to determine the BMPs. The TIR must be updated in this section to indicate which BMPs are being used and how they work. Include any calculations or measurements necessary to verify sizing. Also, describe how the Native Growth Retention Credit is being applied. Show all BMPs on the plans. Native Growth Retention Credit areas must be noted on the plans. After coordination with the geotechnical engineer, it was determined that additional field investigation was not necessary to establish the feasibility of the BMPs. GeoEngineers completed the attached infiltration considerations memorandum Ms. Stacey Welsh April 22, 2021 Page 4 dated April 22, 2021 that conclusively states that the flow control BMPs that require infiltration are not feasible. 10. Condition of Approval item 39 requires WSDOT to review and approve the storm drainage system as it affects WSDOT right-of-way. This must be received before building permit issuance. The storm drainage design has been shared with WSDOT in relation to the SR-18 off-ramp improvements. Official WSDOT approval of the system comes when the developer agreement is complete. The project team will inform the City when that has been completed. Public Works – Traffic Division Sarady Long, 253-835-2743, sarady.long@cityoffederalway.com 1. Conditions of Approval – Please address the comments in the enclosed Conditions Compliance spreadsheet. See attached Compliance Matrix for specific responses to each Condition of Approval. 2. The illumination plan was designed using an outdated street light standard before LED implementation. The illumination plan must be revised using the new standard. There are numerous changes with the updated street light standard, such as eliminating Photocell, change light distribution pattern from Type III to Type II, reduce lamp wattage, etc. Staff will provide detailed review comments on the resubmittal of the illumination plans. Illumination plan revised per new City of Federal Way street light standards. 3. Show pole number on the luminaire schedule consistent with Dwg. No. 3-39B. Based on the existing electrical service cabinet location at sta 112+75, the service cabinet number (XXXX) is 4260. Revised as requested. See City Illumination Pole Schedule new column "City Luminaire Pole Number" for pole numbers consistent with Dwg. 3-39B, sheet IL-01. 4. Remove the crosswalk marking across the truck entrance driveway on Weyerhaeuser Way South. Revised as requested. 5. Surface mount signpost Dwg. No. 3-52 should not be used. The signpost shall be per Dwg. No. 3-51, or the latest update. Revised as requested. Ms. Stacey Welsh April 22, 2021 Page 5 6. The proposed 6063-T6 tapered round aluminum streetlight pole is not consistent with the CZA. Per the CZA, materials and designs for lighting standards should have dark finishes and shall conform in character to the intent of those areas. Please revise the pole and foundation accordingly. Revised as requested. Construction Notes 1and 8 revised to include "…POLE AND FIXTURE DETAILS TO CONFORM TO CZA." 7. Verify conduit fill for the existing 1.5-inch conduit to ensure adequate capacity to accommodate additional wires. See new conduit fill and allowable fill columns in the Illumination Wiring Schedule, sheet IL-01. 8. As part of sidewalk improvement, ramps on Weyerhaeuser Way South and at the Weyerhaeuser Way South and 33rd Place South roundabout must meet current ADA standards. See Civil plans for ramp revisions. Environmental Science Associates – Jessica Redman Review Comments and Recommendations Condition 4 Work is not allowed on Wetlands DP, DQ, DR, DT, Stream EA, and associated buffers, as stream setback intrusions and improvements/land surface modifications in non- Concomitant Zoning Agreement (CZA) exempt wetland setbacks require USE Process IV application review and approval per FWCC Sections 22-1312(c) and 22-1359(d). Figures W2, W3, and W3.1 in the August 2020 version of the Critical Areas Report and Buffer Averaging Plan – Greenline Building A (hereinafter referred to as the Revised CAR) have been revised to show proposed enhancement as occurring only in the buffer addition areas of Wetlands DP, DQ, DR, DT, and Stream EA. Additionally, Sheet LA-04 of the August 2020 version of the Landscape Plan for Woodbridge Building A (hereinafter referred to as the Revised Landscape Plan) notes that enhancement may occur within the Managed Forest Buffer (MFB) or within the buffer addition areas as identified in the Revised CAR. No work is proposed in these buffers, outside of the wetland and stream buffer addition areas, and therefore further land use approval for this area is not necessary. The storm drainage easement shown on the Construction Plans and Landscape Plan has also been revised to be consistent with the figures in the Revised CAR. ESA believes this condition has been met. Comment noted. Ms. Stacey Welsh April 22, 2021 Page 6 Condition 11 The following amendments shall be made to the critical area report prior to issuance of a building permit: (b) According to the Buffer Averaging Plan in the Report (Sheet W1.2) only the northwest portion of the buffer of Wetland DT is being impacted. However, several sheets in the Site Plan show the entire wetland buffer being reduced to 50 feet. We recommend the Report and plan sheets be revised as necessary to show the correct buffer impact. The Revised CAR buffer figures are now consistent with those in the August version of the Construction Plans (hereinafter referred to as the Revised Construction Plan) and the Revised Landscape Plan. As stated in the Comment Response, Wetland EC and EF and their associated buffer have been removed from the sheets showing the post-development condition, as they will be filled. Therefore, ESA believes this condition has been met. Comment noted. Condition 12 Areas of wetland and stream buffer replacement shall be enhanced with native vegetation, as necessary, to ensure buffer function continues post-development. Planting details shall be shown on the landscape plan submitted with the building permit. ESA does not believe Condition 12 has been met. Figures W2.0, W3.0, and W3.1 of the Revised CAR have been revised to only show enhancement plantings in the buffer addition areas of Wetlands DP, DQ, DR, DT, and Stream EA, as recommended in our July 8, 2020 review memo. However, these revisions are not reflected in the Revised Landscape Plan. ESA recommends that details for wetland and stream buffer enhancements are included in the Landscape Plan as required by Condition 12. The details for the wetland and stream buffer enhancements have been added to the Landscape Plan sheets, as requested. Condition 13 All subsequently submitted building and engineering plans shall show averaged critical area buffers, including buffer replacement areas, and only buffers for critical areas that will remain after development. The Revised Construction Plans and Revised Landscape Plan show the averaged critical area buffers for Wetlands DP, DQ, DR, DT, and Stream EA that will remain post- construction. Additionally, the buffers for Wetland EC and EF have been removed from the Revised Construction Plans and Revised Landscape Plan, as they will be filled as part of the project. ESA believes this condition has been met. Ms. Stacey Welsh April 22, 2021 Page 7 Comment noted. Condition 15 The boundary between the wetland buffers and contiguous land shall be identified with permanent signs, which shall be a city-approved type designed for high durability. Signs must be posted at an interval of one per every 150 feet and maintained by the property owner. According to Section 7.4 of the Revised CAR, signs will be installed every 100 feet. According to Condition 15, as well as Federal Way Revised Code (FWRC) 19.145.180(2), signs must be posted at an interval of every 150 feet. In our July 8, 2020 review memo, ESA recommended that Section 7.4 of the CAR be revised to reflect these requirements. ESA agrees that the revisions to Section 7.4 of the Revised CAR meet our recommendations and therefore, this Condition has been met. Comment noted. Condition 38 As stated in the King County Stormwater Design Manual (KCSWDM) Section 1.2.2.1, the applicant shall submit a critical areas report for the offsite wetland on parcel 2121049014. The critical areas report shall be completed as outlined in FWRC 19.145.080; reviewed by an outside peer reviewer at the developer’s expense; and approved prior to approval of the final TIR and prior to building permit issuance. After review of the August version of the Federal Way Parcel #2121049014 Drainage – Existing Conditions and Drainage Study Summary (hereinafter referred to as the Revised Drainage Study), ESA believes that the majority of our recommendations included in our July 8, 2020 review memo have been met. For example, Figure 6 has been revised to show the correct 150-foot buffer for Wetland CR/CS. Additionally, Figures 5 and 6 have been revised to show the former Stream X as a continuation of Stream A flowing offsite. However, the Revised Drainage Study continues to include language and references to buffer widths under the FWCC/CZA. As stated in our July 8, 2020 review memo, critical areas on the parcel are under the jurisdiction of the FWRC and not the FWCC/CZA. Therefore, text, Table 1, and Figure 5 of the Drainage Report should be revised to remove all references to buffer widths under the FWCC/CZA. These recommendations have not been reflected in the Revised Drainage Study, and therefore, this condition has not been met. The Federal Way Parcel #2121049014 Drainage Existing Conditions and Drainage Study Summary has been revised, revisions date of 16 April 2021, to remove all references to the FWCC and CZA, and to only reflect the FWRC regulations as they pertain to the critical areas on that parcel. Ms. Stacey Welsh April 22, 2021 Page 8 If there are any questions or a need for further clarification, please feel free to contact me at (253) 838-6113 and we would be happy to discuss them with you. Sincerely, ESM CONSULTING ENGINEERS, LLC NOHELY MORENO, MS Planner \\esm8\engr\esm-jobs\1886\001\016-0015\document\letter-022.docx