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HomeMy WebLinkAboutPlan Review Comments PRE 12-086 DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT M E M O R A N D U M   DATE: November 13, 2012     TO: Rocale Timmons, Planner     FROM: Arneta Henninger, Plan Review     SUBJECT: Hampton Inn & Suites 1300 Lake Washington Blvd N. PRE 12-086, Parcel 3344500007      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 six story hotel with an indoor pool, on a 1.3 acre site, with 117 parking stalls. The project includes a two story parking structure. The proposed hotel height will be approximately 78 feet. The hotel will be located on the east side of Lake Washington Blvd N near N 13th St and in the vicinity of the project Southport, all in the SW ¼ of Section 5 Township 23N, Range 5E. The following comments are based on the pre-application submittal made to the City of Renton by the applicant for the hotel. Water This site is located in the City of Renton Water service area. The project will be required to install a looped water main, minimum 10 inch diameter around the building within a 15-foot wide utility easement to be dedicated to the City. It is located in the 320 Water Pressure Zone. It is located in the Aquifer Protection Zone 2. There is an existing 12” DI water main located in Lake Washington Blvd N. See City of Renton water drawing W2131 for detailed plans. There is an existing 10” DI water main located in Lake Washington Blvd N. See City of Renton water drawing W3401for detailed plans. 7 There is an existing 4”DI water main located in the parcel to the north. See City of Renton water drawing W3401 for detailed plans. 8. Static pressure at the street level is approximately 118 psi. A Reduced Pressure Backflow Prevention Assembly (RPBA) will be required behind the domestic water meter. The RPBA shall be installed in an above-ground “Hot-Box” per City standard plan no. 350.2. 9. A separate landscape irrigation meter and double check valve assembly will be required. 10. Construction of a commercial building will trigger a separate review. 11. Buildings that exceed 30’ in height shall install a backflow pressure device. 12. Per the City of Renton Fire Marshal, the preliminary fire flow is 3,000 gpm. A minimum of three fire hydrants are required, one within 150 feet and two within 300 feet of the building. It appears adequate fire flow is available in the area. Fire flows exceeding 2,500 gpm require a looped fire main around the building. Hydrants shall be equally spaced around the complex at a maximum spacing of 300 feet. Hydrants are required within 50 feet of all fire department connections for standpipes and sprinkler systems. Existing hydrants may be counted toward the requirements as long as they meet current code. All fire hydrants need to be brought up to current code if not existing. 13. Approved fire sprinkler and fire alarm systems are required throughout the buildings per the City of Renton Fire Marshal. 14. Installation of backflow prevention assemblies (DDCVA’s) is required for the fire sprinkler system. The DDCVA shall be located in vaults outside of the buildings. The proposed location of DDCVA inside the building must be submitted to the City for approval and shall meet the conditions of the City standard plan no. 360.5. 15. System Development Charges for water are based on the size of any and all water meters. These fees are collected at the time the construction permit is issued. This fee is currently being reviewed by the City and may change January 1, 2013. Sanitary Sewer There is an existing 8” PVC sanitary sewer main in Lake Washington Blvd N. See City of Renton drawing S-3220. Any use in the building (kitchen, restaurant) involving the handling of grease requires installation of a properly sized grease interceptor. The project proposes an indoor pool; the pool will need to be connected to the sanitary sewer per the UPC. The covered parking garage needs to be tied to the sanitary sewer. A commercial building permit will trigger a separate review. 6. System Development Charges for sanitary sewer are based on the size of any and all domestic water meters. These fees are collected at the time the construction permit is issued. This fee is currently being reviewed by the City and may change January 1, 2013. Storm Drainage There are storm drainage facilities in Lake Washington Blvd N. City records show that there is an 18” PVC storm crossing Lake Washington Blvd N and a 12” PVC storm crossing in Lake Washington Blvd to the north of this site. See City of Renton drawing TED 2836 for details. A commercial building permit will trigger a separate review. A conceptual drainage plan and report is required to be submitted with the formal application for a commercial project. The report shall comply with Appendix C of the 2009 King County Surface Water Manual and the 2009 City of Renton Amendments to the KCSWM, Chapters 1 and 2. Based on the City’s flow control map, this site falls within the Flow Control Duration Standard, Forested Conditions. A geotechnical report for the site is required. Information on the water table and soil permeability with recommendations of appropriate flow control bmp options with typical designs for the site from the geotechnical engineer shall be submitted with the application. Payment of Surface Water System Development Charges of $.405 per square foot of new impervious area, but not less than $1012.00, is required. This fee is collected prior to the issuance of the construction permit. This fee is currently being reviewed by the City and may change January 1, 2013. Street Improvements Additional offsite improvements to include curb, gutter, sidewalk, and street lighting will be required when a building permit is applied for. Frontage improvements include 8’ sidewalks and 8’ planter strips per the current code. Street Lighting on Lake Washington Blvd: Installation of decorative LED street lights, per the City of Renton Arterial Street Decorative Roadway Luminaire Pole detail, Standard plan 117.1, is required. Lower pedestrian light and banner bracket arms will be required since a sidewalk is to be installed. A Traffic Study is required. When the study is received, staff will have additional information as to what the specific frontage improvements will be triggered. Traffic Impact Fees apply. General Comments All required utility, drainage, and street improvements will require separate plan submittals prepared according to City of Renton drafting standards by a licensed Civil Engineer in the state of Washington. All plans shall be tied to a minimum of two of the City of Renton Horizontal and Vertical Control Network. Permit application must include an itemized cost estimate for these improvements. Half of the fee must be paid upon application for building and construction permits, and the remainder when the permits are issued. There will be additional fees for water service related expenses. See Drafting Standards.