bld20160545_Schroeder - Grading&Driveway 11.8.16.pdf
City of EdmondsBLD20160545
TH
121 5AVENUE NORTHEDMONDS, WA 98020 • (425) 771-0220 FAX(425) 771-0221
Website: www.edmondswa.gov/
PUBLIC WORK DEPARTMENT
Planning • Building • Engineering
Plan Review Comments
PermitApplication:Date:
#BLD20160545November 8, 2016
Schroeder -Grading& Driveway1142 Vista Pl.
Project Name/Address:
Steve SchroederSchroeder.steven@frontier.com
Contact Person/Address, Fax or E-mail:
Reviewer: Chris RiveraDivision:
ENGINEERING
During review of the above noted application, it was found that the following information, corrections, or
clarifications are needed. Reviews by other divisions, such as Planning, Building, or Fire may result in
additional comments. Please redline plans or submit three (3) sets of revised plans/documents with a
written response to each of the items below to a permit coordinator.
nd
Resubmittals can be made at the Development Services Department on the 2floor of City Hall. Permit
Center hours are M, T, Th & F from 8am-4:30pm and on Wednesdays from 8:30am-noon.
City of Edmonds handouts, standard details and development code can be referenced on the City website.
www.edmondswa.gov/
Comments 1 -June 30, 2016
Comments 2 -November 8, 2016
1)ok
2)ok
3)ok
4)ok
5)ok
6)ok
7)6/30/2016 comment -Per city code, to be considered pervious surfaces the slope of the asphalt surface
shall not exceed 5%.Per city handout E72B, the subgrade of the proposed paved driveway (a Category 2
Small Site Project see Handout E-72) shall not exceed 2% slope in order to meet 100% infiltration or
shall not exceed 5% slope to meet 84% infiltration (the remaining 16% will need to be mitigated by
another method). Subgrade beyond 5% slope does not meet city requirements and will be perceived as
impervious.
a.6/30/2016 comment -If the driveway cannot meet the minimum slope, storm water runoff will
need to be collected from new impervious surfaces and directed to a new storm water
management system or modified existing system.
DATE E-MAILED11/8/2016PAGE(1)
City of EdmondsBLD20160545
TH
121 5AVENUE NORTHEDMONDS, WA 98020 • (425) 771-0220 FAX(425) 771-0221
Website: www.edmondswa.gov/
PUBLIC WORK DEPARTMENT
Planning • Building • Engineering
Plan Review Comments
1.6/30/2016 comment -If a new stormwater management system is added or the existing
system is modified, provide design information on the storm management system and
show the system on the site plan. Show the system, surface slopes, storm conveyance
pipesand catch basin (and their invert elevations).
November 8, 2016 –A new stormwatermanagement system has been proposed.
Due to the flow path for the outfall, a geotechnical engineer will need to provide us
with a stormwater drainage plan. Once received the proposal will need tobe
reviewed by the city’s stormwater engineer.
b.N/A
8)ok
November 8, 2016 –Consistent with Edmonds Community Development Code 18.80.060,
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driveway slopes shall not exceed 14% slope. Please indicate this requirement on the plans.
November 8, 2016–An asphalt berm or asphalt thickened edge will need to be placed along the
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inner circle of the driveway in order to direct stormwater toward the stormwater management
system. Please update the site plan showing the berm/thickened edge and revise the cross section.
November 8, 2016 –Elevations at the beginning of the driveway(section running east/west near
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existing paved road) appear to have slope such that stormwater will flow west or northwest. Please
address the stormwater flows providing elevations on the site plan and section views that will show
water flow to the stormwater managementsystem.
November 8, 2016 –With a proposed detention line of 73’, the proposed does not meet the city’s
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detention sizing of 74’ (impervious surface area of 3,500 sf). The system willbe received as having
capability to retain 3,000 sf of impervious surfaces.
November 8, 2016 –Per Edmonds Community Development Code 18.40.020,no rockery shall
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support asurcharge. Rockeris are allowed along cut slopes with no surcharge. The rockery south
of the proposed detention system will need to be a retaining wall designed by anengineer. Please
provideasection cut as well as topand bottom elevations on the site plan.
Please resubmit 3 copies of the revised plansand associated documents with a written response to each
item to a Permit Coordinator. Please contactme at 425-771-0220ext 1339or by e-mail at
chris.rivera@edmondswa.govif you have specific questions regarding these plan corrections.
DATE E-MAILED11/8/2016PAGE(2)