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2008-0743_HilliardWall.pdf CITY OF EDMONDS th 121 5 Avenue North • Edmonds, WA 98020 Phone: 425.771.0220 • Fax: 425.771.0221 • Web: www.ci.edmonds.wa.us DSD: PD EVELOPMENT ERVICES EPARTMENTLANNINGIVISION September 24, 2008 Steve Barnes Cornerstone Architectural Group rd 1904 3 Avenue – Suite 500 Seattle WA 98101 Phone: 206.550.9296 | Fax: 206.621.7717 | Email: sbarnes@cornerstonearch.com th RE: BLD-2008-0743 – Hilliard Retaining Wall @ 15515 75 Place West (RS-20 Zone) Dear Applicant, I have reviewed the above building permit application for the Planning Division and it was found that the following information, corrections, or clarifications will need to be addressed before review can continue. If you have any questions, please do not hesitate to contact me. I look forward to working with you on this project. 1 Please provide a written response to the items mentioned below… 1.Height of Retaining Wall: For retaining wall permits, the Planning Division must find that the portion of the retaining wall within the setback area (within the north 25’ of the property) is under 3 feet in height as measured from the top of the wall to original grade. This is determined by showing a section/profile of the wall at two –foot intervals and labeling the elevation at the top of the wall as compared to the elevation of the original grade each interval. The Planning Division uses a different method to calculate height, which relates back to the definition of “structure” and “structures” (>3’ in height as measured from original grade) are not permitted in the setback area. Please submit a profile showing how the proposed retaining wall will be under three feet in height (as measured from top of wall to original grade), and please mark on the site plan the elevations of the wall in two foot intervals (only for that portion of the wall that is within the north 25’ setback so that this can clearly be determined. : 2.Critical Areas Any new structures proposed on site require critical areas review, and it is not clear that the original geotechnical report addressed the proposed retaining wall. If it did 1 Please redline your plans to reflect any changes – or, if you are submitting new plans, please submit three site plans (one must be reduced size) and two sets of the changed pages of the plans. Please make all submittals to the Development Services Permit Coordinator (Marie Harrison) All code citations can be found on the City of Edmonds website: www.ci.edmonds.wa.us. Page 1 of 2 and if I did not see it, please submit this information for the file. Otherwise, please submit an addendum to the geotechnical report that addresses the walls impact (if any) to the geologically hazardous critical area. Pursuant to the Hearing Examiner’s decision and the critical areas ordinance, the geotechnical engineer of record would need to establish the following (see below). Typically addendums such as this are about one paragraph in length and are titled “hazards analysis.” I would be happy to speak with your consultants if they have any questions about the critical areas ordinance or alterations to critical areas. ECDC 23.80.070.A.2. Alterations. Alterations of an erosion or landslide hazard area and/or buffer may only occur for activities for which a hazards analysis is submitted and certifies that: a. The development will not increase surface water discharge or sedimentation to adjacent properties beyond predevelopment conditions; b. The development will not decrease slope stability on adjacent properties; and c. Such alterations will not adversely impact other critical areas; Sincerely, Gina Coccia Associate Planner 425.771.0220, x 1778 coccia@ci.edmonds.wa.us cc: BLD-2008-0743 enc: Hearing Examiner’s Decision – Conditions of Approval for V-2007-84 Page 2 of 2