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HomeMy WebLinkAboutEX_10_Advisory NotesDEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT Page 1 of 2 LUA21-000084 ADVISORY NOTES TO APPLICANT The following notes are supplemental information provided in conjunction with the administrative land use action. Because these notes are provided as information only, they are not subject to the appeal process for the land use action. Planning: (Contact: Name, 425-430-7246, bgillia@rentonwa.gov) 1. RMC section 4-4-030.C.2 limits haul hours between 8:30 am to 3:30 pm, Monday through Friday unless otherwise approved by the Development Services Division. 2. Commercial, multi-family, new single family and other nonresidential construction activities shall be restricted to the hours between seven o’clock (7:00) a.m. and eight o’clock (8:00) p.m., Monday through Friday. Work on Saturdays shall be restricted to the hours between nine o’clock (9:00) a.m. and eight o’clock (8:00) p.m. No work shall be permitted on Sundays. 3. Within thirty (30) days of completion of grading work, the applicant shall hydroseed or plant an appropriate ground cover over any portion of the site that is graded or cleared of vegetation and where no further construction work will occur within ninety (90) days. Alternative measures such as mulch, sodding, or plastic covering as specified in the current King County Surface Water Management Design Manual as adopted by the City of Renton may be proposed between the dates of November 1st and March 31st of each year. The Development Services Division’s approval of this work is required prior to final inspection and approval of the permit. 4. A National Permit Discharge Elimination System (NPDES) permit is required when more than one acre is being cleared. 5. The applicant may not fill, excavate, stack or store any equipment, dispose of any materials, supplies or fluids, operate any equipment, install impervious surfaces, or compact the earth in any way within the area defined by the drip line of any tree to be retained. 6. The applicant shall erect and maintain six foot (6') high chain link temporary construction fencing around the drip lines of all retained trees, or along the perimeter of a stand of retained trees. Placards shall be placed on fencing every fifty feet (50') indicating the words, “NO TRESPASSING – Protected Trees” or on each side of the fencing if less than fifty feet (50'). Site access to individually protected trees or groups of trees shall be fenced and signed. Individual trees shall be fenced on four (4) sides. In addition, the applicant shall provide supervision whenever equipment or trucks are moving near trees. 7. This permit is shall comply with the Bald and Golden Eagle Protection Act. The permitted is responsible for adhering to the U.S. Fish and Wildlife Service National Bald Eagle Management Guidelines (2007) and /or your U.S. Fish and Wildlife Service permit. Development Engineering: (Contact: Name, 425-430-7288, jchavez@rentonwa.gov) 1. See Attached Development Engineering Memo dated April 5, 2022 Fire Authority: (Contact: Corey Thomas, 425-430-7024, cthomas@rentonwa.gov) 1. The fire impact fees are currently applicable at the rate of $829.77 per each individual home. This fee is paid at time of building permit issuance. Credit is granted for the removal of the one existing home. 2. The fire flow requirement for the proposed single-family homes is a minimum of 1,000 gpm for homes under 3,600 square feet (including garage and basement areas) and goes up to a minimum of 1,500 ADVISORY NOTES TO APPLICANT Page 2 of 2 LUA**-000*** gpm for homes over 3,600 square feet. A minimum of one fire hydrant is required within 300-feet of each proposed home. A minimum of two fire hydrants are required within 300-feet of the proposed homes if they exceed 3,600 square feet. It appears the existing fire hydrant can meet the minimum requirement. 3. Fire department apparatus access roadways are adequately served by the existing public roads. Technical Services: (Contact: Amanda Askren, 425-430-7369, aaskren@rentonwa.gov) 1. None. Community Services: (Contact: Erica Schmitz, 425-430-6614, eschmitz@rentonwa.gov) 1. Parks Impact fee per Ordinance 5670 applies. Police: (Contact: Cyndie Parks, 425-430-7521, cparks@rentonwa.gov) 1. None Building: (Contact: Rob Shuey, 425-430-7235, cburnell@rentonwa.gov) 1. Recommendations of the geotechnical report must be followed as a condition of building permits. DEPARTMENT OF COMMUNITY & ECONOMIC DEVELOPMENT M E M O R A N D U M DATE: April 5, 2022 TO: Brittany Gillia, Planner FROM: Jonathan Chavez, Plan Reviewer SUBJECT: Meadow Avenue Short Plat 3804 Meadow Avenue N LUA21-000084 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. EXISTING CONDITIONS WATER Water service is provided by the City of Renton. The site is within the Kennydale 308 Pressure Zone. The static water pressure is about 77 psi at ground elevation of 130 feet. The site is located outside the City's Wellfield Capture Zones. There is an existing 12-inch water main (see City water project plan no. W-0456) in Meadow Avenue N that can deliver a maximum flow capacity of 4,500 gallons per minute (gpm). There is an existing ¾-inch domestic water meter serving the subject property that is located along the western side of the property. There is an existing fire hydrant located at the northwest corner of the N 38th Street and Meadow Avenue N intersection (HYD-N-00179). SEWER Sewer service is provided by the City of Renton. There is an existing 8-inch concrete wastewater main located in Meadow Avenue N (see City plan no. S-017905). STORM The existing site topography is relatively flat. There is no on-site stormwater conveyance system. Stormwater from the site either infiltrates or gradually flows off-site. There is an 18” stormwater main on the west side of the property (see City plan no. D-234409). STREETS Meadow Avenue North is classified as a residential access street with an existing right of way width of approximately 40-41’. Per RMC 4-6-060, the minimum right of way width for a residential access street is 53’. I have completed a preliminary review for the above-referenced proposal located at parcel(s) 3342700570. The following comments are based on the Land Use Application submittal made to the City of Renton by the applicant. Meadow Avenue Short Plat – LUA21-000084 April 5, 2022 Page 2 of 5 WATER 1. A pressure reducing valve is recommended downstream of the meter because the water pressure exceeds 75 psi. 2. Installation of a “Storz” adapter on the existing hydrants, if they are not already equipped with one. 3. A separate domestic water service and meter is required for each lot. Meter sizing shall be per Uniform Plumbing Code, Chapter 6. 4. A conceptual water plan will be required as part of the land use application for the subject development. a. The Applicant submitted a preliminary Civil Plan showing utility connections. The existing ¾-inch meter and service shall be capped at the main line. A new 1-inch water service is required for each lot. Meters shall be installed by city forces and water permits will be required. 5. The development is subject to applicable water system development charges (SDC’s) and meter installation fees based on the number and size of the meters for domestic uses. The development is also subject to fees for water connections, cut and caps, and purity tests. Current fees can be found in the 2022 Development Fees Document on the City’s website. Fees will be charged based on the rate at the time of construction permit issuance. a. The SDC fee for water is based on the size of the new domestic water to serve the project. The 2022 water fees are $4,500.00 per 1-inch meter. A redevelopment SDC credit will apply to the existing ¾-inch meter that will be abandoned. b. Water service installation charges for each proposed domestic water service is applicable. Water Service installation fee is $2,875.00* per 1-inch service line. Fee is payable at permit issuance. c. Drop-in meter fee is $460.00* per 1-inch meter. d. Final determination of applicable fees will be made after the water meter size has been determined. SDC fees are assessed and payable at permit issuance. SEWER 1. There is an existing 6” concrete sewer stub at the west property line. There is also a 4” side sewer from the stub to the house. The side sewer will have to be cut and capped with the demolition of the existing house. You can re-use the existing sewer stub provided that it is lined, if lineable. a. The Applicant submitted a preliminary Civil Plan showing utility connections. The Applicant is proposing to inspect existing sewer service and assess whether the service can be lined. The existing stub would be for lot 3. 2. The Applicant will need to install a new sewer stub for each of the new lots from the existing sewer main in Meadow Avenue N. The new sewer stubs shall be a minimum of 6” and shall run at a slope of at least 2% to the main. a. Bends are not allowed on new sewer stubs. The Civil Plans will have to be revised to reflect this for the Lot 2 sewer stub. 3. The development is subject to a wastewater system development charge (SDC) fee. SDC fee for sewer is based on the size of the new domestic water to serve the project. The 2022 Wastewater fees are $3,500.00 per 1-inch meter. SURFACE WATER Meadow Avenue Short Plat – LUA21-000084 April 5, 2022 Page 3 of 5 1. A drainage report complying with the current Renton Surface Water Design Manual (RSWDM) will be required. Based on the City’s flow control map, the site falls within the City’s Peak Rate Flow Control Standard (Existing Site Conditions). The site falls within the May Creek Drainage Basin. Refer to Figure 1.1.2.A – Flow chart to determine the type of drainage review required in the RSWM. a. A drainage report dated January 29, 2021, was submitted by Encompass Engineering. The Applicant is proposing full infiltration for the new impervious area being added to the site. The full infiltration trenches must follow the recommendation of the Geotechnical Report, which classifies the soil as Medium Sands. The Applicant is allowed to fully infiltrate 1,000 square feet (SF) of impervious surface area per 30 linear feet (LF) of trench. The Civil Plans and TIR must be updated at the Civil Permit stage of the project, to reflect the Geotechnical Engineer’s recommendation. b. Infiltration trenches must be a minimum of 50’ away from the existing Erosion Hazard Area. Please revise location of infiltration trenches on Civil Plans. c. Infiltration devices proposed within 200 feet of a steep slope hazard area, erosion hazard area, or landslide hazard must be approved by a geotechnical engineer or engineering geologist unless otherwise approved by CED. The geotechnical analysis must consider cumulative impacts from the project and surrounding areas under full built-out conditions. i. A geotechnical memo from Earth Solutions NW LLC was submitted on March 7, 2022. The Geotechnical memo supports the proposed infiltration trench location. 2. Appropriate on-site BMPs satisfying Core Requirement #9 will be required to help mitigate the new runoff created by this development to the maximum extent feasible. On-site BMPs shall be evaluated as described in Section C.1.3 of the 2017 RSWDM. A preliminary drainage plan, including the application of on-site BMPs, shall be included with the land use application, as applicable to the project. The final drainage plan and drainage report must be submitted with the utility construction permit application. 3. A geotechnical soils report for the site is required per the 2017 Renton Surface Water Design Manual Section C.1.3. Information on the water table and soil permeability (measured infiltration rates), with recommendations of appropriate on-site BMPs per Core Requirement #9 and Appendix C shall be included in the report. The report should also include information concerning the soils, geology, drainage patterns and vegetation present shall be presented in order to evaluate the drainage, erosion control and slope stability for site development of the proposed plat. The applicant must demonstrate the development will not result in soil erosion and sedimentation, landslide, slippage, or excess surface water runoff. a. A geotechnical report dated March 20, 2020, was submitted by Earth Solutions. The Geotechnical Report classifies the existing soils as Medium Sands, with a design infiltration rate of 5 inches/hour. The Applicant is allowed to fully infiltrate 1,000 square feet (SF) of impervious surface area per 30 linear feet (LF) of trench. The Civil Plans and TIR must be updated at the Civil Permit stage of the project, to reflect the Geotechnical Engineer’s recommendation. b. Infiltration devices proposed within 200 feet of a steep slope hazard area, erosion hazard area, or landslide hazard must be approved by a geotechnical engineer or engineering geologist unless otherwise approved by CED. The Meadow Avenue Short Plat – LUA21-000084 April 5, 2022 Page 4 of 5 geotechnical analysis must consider cumulative impacts from the project and surrounding areas under full built-out conditions. i. A geotechnical memo from Earth Solutions NW LLC was submitted on March 7, 2022. The Geotechnical memo supports the proposed infiltration trench location. 4. Erosion control measures to meet the City requirements shall be provided. 5. The current Surface Water Standard Plans shall be used in all drainage plan submittals. The current City of Renton Standard Details are available online in the City of Renton website https://edocs.rentonwa.gov/Documents/Browse.aspx?id=990403&dbid=0&repo=Cityof Renton 6. The 2022 Surface water system development fee is $2,100 per new single family lot. Fees that are current will be charged at the time of permit issuance. TRANSPORTATION 1. Per City code 4-6-060, half street improvements shall include a pavement width of 26 feet (13 feet from centerline), a 0.5-foot curb, an 8-foot planting strip, an 5-foot sidewalk, street trees and storm drainage improvements. a. The existing paved width is approximately 30’. The Applicant shall retain the existing paved width and provide a 0.5-foot curb, an 8-foot planting strip, a 5- foot sidewalk, street trees and storm drainage improvements. Dedication of approximately 8’ (pending field survey) will be required. 2. The site borders Interstate 405 (I-405) on the east property line. Preliminary plans for the future widening of I-405 indicate ROW acquisition from the subject site. Applicant should further coordinate with WSDOT at 425-456-8538 for further coordination and to verify any future impacts related to widening of the highway. 3. ADA access ramps shall be installed at all street crossings. Ramps shall be shown at each intersection. Ramps shall be oriented to provide direct pedestrian crossings. 4. Refer to City code 4-4-080 regarding driveway regulations: a. Driveways shall be designed in accordance with City standard plans 104.1 and 104.2. b. Maximum driveway slope is 15%. Driveways which exceed 8% shall provide slotted drains at the lower end with positive drainage discharge to restrict runoff from entering the garage. c. The maximum width of a single loaded garage driveway is 9-feet and the maximum width of a double loaded garage driveway is 16-feet. If a garage is not present, the maximum driveway width is 16-feet. d. Driveways shall not be closer than 5-feet to any property line. 5. Paving and trench restoration shall comply with the City’s Trench Restoration and Overlay Requirements. 6. The transportation impact fee is based on the type of land use. For a single-family homes, the 2022 transportation impact fee is $10,861.69 per lot. Transportation impact fees are subject to change based on the year the building permit is applied for. GENERAL COMMENTS Meadow Avenue Short Plat – LUA21-000084 April 5, 2022 Page 5 of 5 1. All existing and proposed utility lines (i.e. electrical, phone, and cable services, etc.) along property frontage or within the site must be underground. The construction of these franchise utilities must be inspected and approved by a City of Renton inspector. 2. 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. 3. All civil construction 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 4. A landscaping plan and tree retention shall be included with the civil plan submittal. Each plan shall be on separate sheets. 5. Additional Building Permit Applications will be required for the following: a. Any retaining walls that exceed 4 feet in height, as defined by RMC 4-4-040. b. Detention vaults for storm water flow control. c. Demo of any existing structures on the project site(s). 6. Fees quoted in this document reflect the fees applicable in the year 2022 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.