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HomeMy WebLinkAboutLUA17-000324 US Bank Expansion Engineering Review Comments.pdf DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT M E M O R A N D U M DATE: June 21, 2017 TO: Angelea Weihs, Planner FROM: Justin Johnson, Civil Engineer II, Plan Review SUBJECT: US Bank Expansion 14120 160th Ave SE LUA17-000324 NOTE: The applicant is cautioned that information contained in this summary is preliminary and non- binding and may be subject to modification and/or concurrence by official City decision-makers. Review comments may also need to be revised based on site planning and other design changes required by City staff or made by the applicant. I have completed a preliminary review for the above-referenced proposal located at parcel(s) 3023059103. The following comments are based on the pre-application submittal made to the City of Renton by the applicant. WATER 1. Water service is from the 196 zone, static pressure is about 76 psi at ground elevation of 16 feet. Existing 10-inch loop around the building can deliver 2,700 gpm. Existing 12-inch main in E Valley Rd can deliver 5,000 gpm. 2. There is an existing 1.5-inch domestic meter and a 1.5-inch landscape meter. 3. The project is showing approximately 80 feet of 10-inch water main relocation around the proposed building expansion. 4. Will also need a partial release of the existing easement and the dedication of a new easement for the relocated water line. SEWER 1. Sewer service is provided by City of Renton. 2. There is an existing 8-inch wastewater main located in East Valley Rd (see City plan no. S-020006). Us Bank Expansion– LUA17-000324 June 21, 2017 Page 2 of 2 SURFACE WATER 1. There is an existing storm water system within the property. 2. A drainage report complying with the 2017 City of Renton Surface Water Manual and City Amendments is required. Based on the City’s flow control map, the site falls within the Peak Rate Flow Control Standard area matching Existing Site Conditions and is within the Black River Drainage Basin. 3. The drainage report submitted needs to describe how it complies with each section of the manual and show all calculations. TRANSPORTATION 1. East Valley Road is a collector arterial, per RMC 4-6-060 collector streets should have a minimum ROW width of 94 feet with 41 feet wide paved width, 8 feet parking lane, 0.5 feet wide curbs, 8 feet wide landscaped planters, and 8 feet wide sidewalks. Street lighting and storm water improvements on the public street frontages are applicable. The street improvements should meet the requirements of RMC4-6-060 at a minimum. However, a street modification was submitted by the applicant. The City of Renton will support the modification request submitted. GENERAL COMMENTS 1. Adequate separation between utilities as well as other features shall be provided in accordance with code requirements. a. 7-ft minimum horizontal and 1-ft vertical separation between storm and other utilities is required with the exception of water lines which require 10-ft horizontal and 1.5-ft vertical. b. The stormwater line should be minimum 5 feet away from any other structure or wall or building. c. Trench of any utility should not be in the zone of influence of the retaining wall or of the building. 2. All construction utility permits for utility and street improvements will require separate plan submittals. All utility plans shall confirm to the Renton Drafting Standards. A licensed Civil Engineer shall prepare the civil plans. Please visit the Development Engineering Forms page for the most up-to-date plan submittal requirements: http://rentonwa.gov/business/default.aspx?id=42473 3. A landscaping plan shall be included with the civil plan submittal. Each plan shall be on separate sheets. 4. All utility lines (i.e. electrical, phone, and cable services, etc.) serving the proposed development must be underground. The construction of these franchise utilities must be inspected and approved by a City of Renton inspector. 5. Fees quoted in this document reflect the fees applicable in the year 2017 only and will be assessed based on the fee that is current at the time of the permit application or issuance, as applicable to the permit type. Please visit www.rentonwa.gov for the current development fee schedule.