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pln20120021-Ritter-Civil-E2.pdf CITY OF EDMONDS CIVIL PLAN REVIEW COMMENTS ENGINEERING DIVISION (425) 771-0220 City Website: www.edmondswa.gov DATE:August 20, 2013 TO:Erich Tieze eota@clearwire.net Carl Clapp, CC Construction carclp@comcast.net FROM:Jeanie McConnell, Engineering Program Manager RE:Subdivision File #: pln20120021 Project: Ritter, 3-lot Short Plat Project Address: 8364 Olympic View Drive During review of the above noted application, it was found that the following information, corrections, or clarifications are needed. Pleaseredline plans or submit three (3) sets of revised plans/documents with a written response to each of the items below to an Engineering Technician. City of Edmonds handouts and standard details can be referenced on the City website under Permit Assistance. Review 1 -5/23/2013 Review 2 –8/20/2013 GENERAL 1.August 20, 2013 –Thank you for providing a cost estimate. Please revise as follows: a)Include the soldier pile wall. b)For the small wall adjacent to the ROW, please show as a retaining wall and not a rockery. A rockery will not be permitted adjacent to the ROW. c)Include storm system control tee d)Include water service lines e)Include mailboxes 5/23/2013 comment -Please provide an itemized engineers cost estimate, including units and unit prices, for both on-site and off-site (right-of-way) improvements, including all utilities, traffic control, and restoration/enhancement plantings. Please use the King County Site Improvement Bond Quantity Worksheet and utilize the “write-in” sections where appropriate. Abond is required to be placed for all erosion control measures, right-of-way and stormwater management improvements. Posting a bond for stormwater systems applies to subdivisions that involve 7,000 square feet or more of land disturbing activity and as well as on projects in a critical area or buffer including ESLHA. The amount of the bond will be based on 120% of the City approved estimate. The City will inform you of the appropriate bond amount after review of the cost estimate. Please obtain the appropriate subdivision improvement bond forms from the City. If you intend to post a bond in order to record the subdivision, the bond amount will be based on the entire scope of the project. Inspection fees for this project will be calculated at 2.2% of the120% City approved estimate for all improvements. 2.August 20, 2013 –Response letter states the traffic control and haul route plan will be submitted separately to the City. 5/23/2013 comment -Please submit a traffic control and haul route plan for review and approval. 3.ok 4.August 20, 2013 –Response letter stated the ROW construction permit will be completed separately by the contractor. 5/23/2013 comment -The attached ROW construction permit shall be completed, with contractor’s signature, and providedto the City prior to civil plan issuance. 5.ok 6.ok 7.August 20, 2013 -Please sign and return the special inspection & testing agreement form that has been included with these comments. 8.August 12, 2013 –Comments from Peer Review Consultant, David Evans & Assoc, were emailed to Erich Tietze. Once a resubmittal is received by the City it will be forwarded to David Evans & Assoc. for continued review/approval. PLANNING DIVISION COMMENTS 1.ok 2.ok 3.ok 4.August 20, 2013 –The response letter from Mr. Tietze references a letter dated November 26, 2012 by Liu & Associates; however, this letter was submitted as part of the preliminary subdivision application, and certain aspects of the civil plans have changed from then to now. It was noted that a letter was provided by Liu & Associates dated June 26, 2013 addressing the access road retaining wall. However, since the current civil plans are different than the original proposal reviewed by Liu & Associates and since the latest letter by Liu & Associates (June 26, 2013) only addressed the access road retaining wall and did not address the latest civil plans in their entirety, please provide an addendum by Liu & Associates reviewing the current civil plans in order to ensure that the proposal is still in compliance with the applicable critical areas regulations of ECDC 23.40 and 23.80. 5/23/2013 comment -Since much of the site contains a Landslide Hazard Area, this phase of the project will need to be reviewed by a qualified geotechnical engineer pursuant to ECDC 23.40 and 23.80.Please provide a letter by a qualified geotechnical engineer that addresses how the proposed work associated with the civil improvements, tree removal, and vegetation management planis consistent with the critical areas regulations of ECDC 23.40 and 23.80 and providing any additional recommendations for what would need to be done in order to comply with the critical areas regulations and avoid any potential negative impacts to the stability of the slope. 5.ok 6.ok Page 2of 4 DRAINAGE REPORT dated March 19, 2013 The storm drainage design was approved by Jerry Shuster on July 29, 2013. No further comments. SHEET C-0–PRELIMINARY PLAT 1.ok 2.ok 3.ok SHEET C-1–TEMPORARY EROSION AND SEDIMENT CONTROL PLAN 1.ok 2.ok 3.ok SHEET C-1.1–TREE RETENTION/NGPA PLAN 1.ok 2.ok SHEET C-3–GRADING PLAN AND DRIVEWAY & FRONTAGE IMPROVEMENT PLAN 1.ok 2.ok 3.ok 4.ok 5.ok 6.ok 7.ok 8.August 20, 2013 –The response letter states the slope of the driveway must be kept as steep as possible in order to keep the house grade up above the hillside to the south. The driveway slope has been reduced to 19.1%. As noted below, a request for waiver will need to be processed as a Type II decision and requires noticing. Please refer to ECDC 18.80.060.D and provide a written request for waiver that addresses the stated criteria of approval. If you can submit the request by August 26, 2013 I can schedule the noticing in the newspaper, etc. 5/23/2013 comment -The driveway has been designed with a 19.9% slope. City code allows for a maximum14% slope, with the potential to receive a waiver up to 20% with noticingas a Type II land use decisionand approval by the Public Works Director. Please refer to ECDC 18.80.060.D and revise plans or respond accordingly.If you choose to proceed with a driveway slope design of over 14%, please reduce the slope below 20% as much as feasible. A design at almost 20% leaves no allowance for adjustments during construction. 9.ok 10.ok SHEET C-4–DRAINAGE PLAN 1.ok Page 3of 4 2.ok 3.ok 4.ok 5.ok 6.ok 7.ok SHEET C-5–WATER AND SEWER PLAN 1.ok 2.ok 3.ok Please contact me at 425-771-0220 or by e-mail at jeanie.mcconnell@edmondswa.govif you have specific questions regarding these plan corrections. Page 4of 4