Loading...
HomeMy WebLinkAboutPlan Review Comments PRE 12-004 DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT M E M O R A N D U M   DATE: January 25, 2012     TO: Rocale Timmons, Planner     FROM: Jan Illian, Plan Review     SUBJECT: Renton Downtown Library 508 S. 3rd Street PRE 12-004      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. The following comments are based on the pre-application submittal made to the City of Renton by the applicant. WATER 1. There is an existing 12-inch water main in S. 3rd Street. The available derated fire flow from the 12-inch main fronting the site in S. 3rd Street exceeds 3,000 gpm. Pressure available is approximately 65 psi. The proposed project is outside an Aquifer Protection Zone. 2. The preliminary fire flow requirement per the Fire Marshal’s office is 2,250 gpm. All new construction must have fire hydrants capable of delivering a minimum of 1,000 gpm each. One primary hydrant is required within 150 feet from the buildings and three additional hydrants will be required within 300 feet of the buildings. 3. There are existing fire hydrants in the vicinity that may be counted towards the fire protection of this project, but are subject to verification for being within the required distance and require fire department approval. One new hydrant is required and it is shown on the plan; however, final design will require the fire department connection to be within 50 feet of the new hydrant. Any existing hydrants counted as fire protection will be required to be retrofitted with a quick disconnect Storz fitting if not already in place. Water system development (SDC) fees are based on the size of the domestic water meter, fire service line, and landscape irrigation meter that will serve the site. Credit will be given for the existing 1-inch domestic meter that currently serves the existing building. Fees are payable prior to issuance of the construction permit. See fee schedule attached. 5. A double check valve assembly (DCVA) will be required to be installed inline of the domestic water meter to the new building. 6. A fire sprinkler system will be required by the fire department. A separate no-fee utility permit and separate plans will be required for the installation of the double detector check valve assembly for the fire sprinkler line. 7. All devices installed shall be per the latest Department of Health “Approved List” of Backflow Prevention Devices. Location of device shall be shown on the civil plans and shall show note: “Separate plans and utility permit for DDCVA installation for Fire Sprinkler System will be required.” DDCVA installations outside the building shall be in accordance with City of Renton Standards. For DDCVA installations proposed to be installed inside the building, applicant shall submit a copy of the mechanical plan showing the location and installation of the backflow assembly. DDCVA shall be installed immediately after the pipe has passed through the building floor slab. Installation of devices shall be in the horizontal position only. SANITARY SEWER 1. There is an 8-inch sewer main located along the north property line. 2. Sewer system development fees are based on the size of the domestic water meter that will serve the site. Credit will be given for the existing 1-inch water meter serving the building. The sewer fee will be based on the difference between the 1-inch and 1.5 inch meters. This is payable prior to issuance of the construction permit. See fee schedule attached. 3. If food preparation facilities (kitchen, café, restaurant) are proposed, a grease trap or grease interceptor will be required. A separate plumbing permit is required. SURFACE WATER 1. A drainage plan and drainage report will be required with the site plan application. The report shall comply with the 2009 King County Surface Water Manual and the 2009 City of Renton Amendments to the KCSWM, Chapters 1 and 2. All core and any special requirements shall be contained in the report. Based on the City’s flow control map, this site falls within the Flow Control Duration Standard, Existing Conditions. The drainage report will need to follow the area specific flow control requirements under Core Requirement #3. 2. 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. 3. Surface Water System Development fees of $.405 per square foot of new impervious surface will apply. This is payable prior to issuance of the construction permit. TRANSPORTATION/STREET A traffic mitigation fee of $75 per additional generated daily trip shall be assessed as determined by the ITE trip generation manual. 2. Street improvement along S. 3rd Street shall match the existing sidewalk and lighting design improvements to the east. 3. All wire utilities shall be installed underground per the City of Renton Under Grounding Ordinance. If three or more poles are required to be moved by the development design, all existing overhead utilities shall be placed underground. Any new services shall be installed underground. GENERAL COMMENTS All construction utility permits for utilities, drainage, and street improvements will require separate plan submittals. All utility plans shall conform to the Renton Drafting Standards. Plans shall be prepared by a licensed Civil Engineer. Any proposed rockeries or retaining walls greater than 4 feet in height will require a separate building permit and special inspection. 3. Separate permits and fees for water meters, side sewers, and backflow devices are required. 4. A cut and cap permit to abandon the existing water meter and side sewer will be required as part of the demolition permit.