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2912_001.pdfiPACE An Engineering Services Ornpany IN U 'A November 12, 2019 City of Edmonds A ++- IcA ir 1J r-% - ZuIauf /—%LL nn%. . Ga 121 511 Ave. N. Edmonds, WA 98020 Subject: Edmonds Crossing Apartments (BLD20190951) Response to Engineering Review Comments PACE Project No. 410-002-18 DearJoAnne: Engineers I Planners I Surveyors We are pleased to submit this letter along with the accompanying plans/reports for further technical review and approval. This submittal package is submitted in response to recent technical review letter issued by the City's Engineering Division on October 2, 2019. The review comments from that letter are provided below (plain text), along with a brief response (bold italics) indicating how each comment was addressed. GENERAL Provide an itemized engineers cost estimate for both on -site and off -site (right-of-way) improvements, including traffic control and all utility installations. Use the King County Bond Quantity Worksheet (available on the county website) and utilize "write-in" sections where appropriate. a. a. The amount of the bond will be based on 120% of the City approved estimate for the offsite improvements. b. A 3.3% inspection fee is calculated for the project based on 100% of the City approved estimate for the entire project improvements. The requested estimate has been provided 2. Olympic View Water and Sewer District shall have their own approval block on pages specific to their review and approval. The applicant will be required to obtain OVWSD project approval prior to final approval of the civil plans by the City. Please allow time for the city to review for consistency. Comment noted. Separate plans submitted to OVWSD. Approved plans will be forwarded to the City once they are obtained. RESUB NOV 18 2019 BUILDING DEPARTMEN-If CITY OF EDMONDS PACE Engineers. Inc. I SDA 1724 W. Marine View Drive I Suite 140 Everett, Washington 98201-2088 p 425.486.6533 1 f 425.486.6593 www.paceengrs.com November 12, 2019 Joanne Zulauf City of Edmonds Page 2 of 4 Sheet C1.0 — TITLE SHEET www.paceengrs.com 1. Provide Utility Purveyor information. See City of Edmonds E-28 EUC Handout for guidance. Add City of Edmonds as a Stormwater purveyor. Purveyor information added. Sheet C1.1 — GENERAL NOTES 1. Revise note #19, or show footing infiltration on plans. Note #19 has been corrected. Sheet C2.0 — TESC PLAN 1. Tree protection measures are to be shown on this plan. Where trees are to be maintained barrier fencing shall be placed at the drip line of the tree in order to protect the root system. Please use "X" to indicate trees to be removed. Plan revised as requested. 2. Call out existing telephone pole and add note that it will be relocated. Note has been added to relocate existing franchise utilities as needed, with a leader pointing to the utility pole. It appears that there may be other utility drops here in addition to power & phone. 3. Show existing utilities and note where utilities will be cut and capped Notes added to call out removal of existing water meter and relocation of franchise utilities. 4. Add note: All disturbed areas to be compost amended per 2014 SWMMWW BMP T.5.13 Added as note #2 on this plan. Sheet C3.0 — SITE LAYOUT 1. Sidewalks shall be held at a consistent grade across both drive accesses. There should not be any sidewalk ramps. Grade transition for access shall take place within the 4 ft adjacent to the landscape strip. Please revise plans. After further correspondence with the City, the prior entry configuration was determined to be acceptable. Removing sidewalk ramps and adding aprons is expected to hinder access for fire and trash -removal. November 12, 2019 Joanne Zulauf City of Edmonds Page 3 of 4 Sheet CM — SITE DETAILS www paceengrs com Please replace standard detail TR-505 with TR-543, it is much more representative of the planned approaches. After further correspondence with the City, the prior entry configuration was determined to be acceptable. Removinq sidewalk ramps and addinq aprons is expected to hinder access for fire and trash -removal. Detail TR-543 (apron detail) not added. 2. Please replace standard detail TR-520 with TR-521 and add note that vertical curb is to be installed. Also add note "Two foot sawcut may not be required by WSDOT, confer with Engineering inspector prior to beginning work. Detail replaced as requested. Sheet C4.0 — GRADING AND DRAINAGE PLAN 1. The detention vault plan needs to be reviewed by the City's structural consultant. Please provide the structural calculations for review. Comment noted Structural plans & calculations to be provided separate from this letter. Sheet C4.2 — GRADING AND DRAINAGE DETAILS 1. ADA ramps at access points will not be needed. See Sheet C3.0 comment above. After further correspondence with the City, the prior entry configuration was determined to be acceptable. Removing sidewalk ramps and adding aprons is expected to hinder access for fire and trash -removal. ADA ramps remain on the plan but have been revised to reflect the sidewalk's slope away from the fronting road, which is proposed to address drainage concerns. Sheet C5.0 — COMPOSITE UTILITY PLAN 1. Hydrant shall be shifted to the west slightly to accommodate street tree Hydrant location revised as requested. 2. Please add note to plans: "Utility patches with less than 20-feet of separation shall be combined and full width or half width overlay will be required depending on the extent of disturbance. Where utility patches fall entirely within one travel lane, the overlay shall extend to the centerline of roadway, Where utility patches extend into both travel lanes then a full width overlay is required." Note added. rPA��E 19 Q'A November 12, 2019 Joanne Zulauf City of Edmonds Page 4 of 4 www.paceengrs com 3. The city shall receive water and sewer plans approved and signed by Olympic View Water and Sewer District prior to the final city engineering review of the project. Plans provided to OVWSD for review and will be forwarded to the City once they are approved. Sheet X of X — TRAFFIC CONTROL 1 . Please submit a traffic control for review and approval. Traffic control measures have been added to the TESC plan (now called TESC & Traffic Control Plan). 2. Disruption fees will be charged for closure of sidewalk areas (over 48 hours). If proposed, clearly specify areas of closure and indicate the approx. number of days the closure will be necessary. It will be difficult to maintain pedestrian access across the site's frontage while the sidewalk is being replaced without disruptions greater than 48 hours. Notes have been added to the TESC plan calling for coordination of the sidewalk replacement with City inspection staff to determine an efficient means of replacement that minimizes pedestrian disruption. Sheet L1.0 — LANDSCAPE PLAN Landscaping comments to be addressed by others. Sincerely, PACE Engineers, Inc. I 111e14 Kenneth J. McIntyre, PE Project Manager