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HomeMy WebLinkAboutEX07_C_Advisory_NotesDEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT Page 1 of 2 LUA21-000169 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: Jill Ding, 425-430-6598, jding@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 wh ere 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. 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. 5. 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. Development Engineering: (Contact: Nathan Janders, 425-430-7382, njanders@rentonwa.gov) 1. See Attached Development Engineering Memo dated May 17, 2021 Fire Authority: (Contact: Corey Thomas, 425-276-9582, cthomas@rentonrfa.org) 1. The fire impact fees are currently applicable at the rate of $829.77 per single family unit. This fee is paid at building permit issuance. Credit will be granted for any existing homes that are removed o r retained. 2. The fire flow requirement for a single-family home is 1,000 gpm minimum for dwellings up to 3,600 square feet (including garage and basements). If the dwelling exceeds 3,600 square feet, a minimum of 1,500 gpm fire flow would be required. A minimum of one fire hydrant is required within 300-feet of the proposed buildings and two hydrants if the fire flow goes up to 1,500 gpm. Water is provided by King County Water District 90; a water availability certificate will be required. Applicant has not shown Exhibit 7 DocuSign Envelope ID: 12C60CAF-B0E5-4C9F-B07F-927519CCDB4B ADVISORY NOTES TO APPLICANT Page 2 of 2 LUA21-000169 any preliminary water plan to show compliance with minimum fire hydrant requirements. It appears one new fire hydrant may be required. 3. Fire department apparatus access roadways are required to be a minimum of 20-feet wide fully paved, with 25-feet inside and 45-feet outside turning radius. Fire access roadways shall be constructed to support a 30-ton vehicle with 75-psi point loading. Access is required within 150-feet of all points on the buildings. Applicant is showing a proposed 16-foot-wide shared access that does not meet minimum fire code requirements. They can apply for a variance to provide approved fire sprinkler systems in both homes if they desire, they have not made this known to the fire department and have not expressed it in this plan. If fire sprinkler systems are provided in each home, the department would approve a variance from 20-feet to 16-feet wide access road. Technical Services: (Contact: Amanda Askren, 425-430-7369, aaskren@rentonwa.gov) 1. None Community Services: (Contact: Leslie Betlach, 425-430-6619, lbetlach@rentonwa.gov) 1. Parks Impact fee applies. Police: (Contact: Cyndie Parks, 425-430-7521, cparks@rentonwa.gov) 1. None Building: (Contact: Rob Shuey, 425-430-7235, rshuey@rentonwa.gov) 1. None DocuSign Envelope ID: 12C60CAF-B0E5-4C9F-B07F-927519CCDB4B DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT M E M O R A N D U M DATE: May 17, 2021 TO: Jill Ding, Senior Planner FROM: Nathan Janders, Civil Engineer II SUBJECT: Hardy Short Plat 857 Field Ave NE LUA21-000169 I have reviewed the application for the Hardy Short Plat located at 857 Filed Ave NE and have the following comments: EXISTING CONDITIONS The site is approximately 15,130 square feet in size and is rectangular in shape. The site currently contains a single family home and outbuilding. The site is fronted by Field Ave NE to the East with private property to the West, South and North. WATER: The proposed development is within King County Water District 90’s water service area. SEWER: The proposed development is within the City’s sewer service area. There is an existing 8 -inch gravity wastewater main Field Ave NE (record drawing S-371301), located south of the proposed site, conveying wastewater south. The existing home is not connected to the City sewer system. STORM: There is an existing 12-inch public stormwater main on the west side of Field Ave NE (record DWG R-265604) conveying runoff north. There is no existing on site stormwater conveyance system. STREETS: The proposed development fronts Field Ave NE along the east property line. Field Ave NE is classified as a Residential Access street. Existing right-of-way (ROW) width, according to the King County Assessor Map, is 60 feet. There is an existing rolled curb with approximate 5-foot sidewalk along the property frontage. DocuSign Envelope ID: 12C60CAF-B0E5-4C9F-B07F-927519CCDB4B Hardy Short Plat– LUA21-000169 Page 2 of 7 May 17, 2021 WATER COMMENTS 1. Water service is provided by King County Water District 90. 2. Applicant shall obtain a water availability certificate from the District and provide it with the civil construction permit submittal. 3. Review of the water plans will be conducted by King County Water District 90 and the Renton Regional Fire Authority. 4. Plans approved by King County Water District 90 shall be routed to the City for final review prior to permit issuance. SEWER COMMENTS 1. A minimum 8-inch sewer main extension will be required to extend from the existing 8-inch main in Field Ave NE (manhole facility ID: MH6323) to the northernmost property line. Sewer main extensions shall be in accordance with RMC 4-6-040. 2. Individual sewer stubs from the sewer main and an individual side sewer serving lots 1 and 2 shall be provided. All new sewer stubs shall conform to the standards in RMC 4-6-040 and City of Renton Standard Details. a. Proposal indicates a single sewer stub that appears to service both lots. Individual stubs and side sewers shall be provided for lots 1 and 2. A stub serving lot 2 may be installed in a joint trench with the stub for Lot 1 either in Tract A or along lot 2’s frontage with Field Ave NE. 3. The site is served by a private on-site-septic system. The septic system shall be abandoned in accordance with King County Department of Health regulations and the Renton Municipal Code. 4. 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. Current fees can be found in the 2021 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 current sewer fee for is $3,450.00 per 1-inch meter. b. Final determination of applicable fees will be made after the water meter size has been determined. c. The full fee schedule can be found at: https://edocs.rentonwa.gov/Documents/DocView.aspx?id=8373700&dbid=1&repo=CityofRenton 5. The East Renton Interceptor Special Assessment District (SAD) is applicable on the project. The SAD has reached its maximum assessment and is $316.80 per lot. Fees are due at the time of construction permit issuance. 6. The Honey Creek Special Assessment District (SAD) is applicable on the project. The SAD does not accrue interest and is assessed at $250.00 per lot. Fees are due at the time of construction permit issuance. STORM DRAINAGE COMMENTS 1. A geotechnical report dated January 6, 2021, completed by Cobalt Geosciences, was provided with the Land Use Application. The report discusses the soil and groundwater characteristics of the site and provides recommendations for project design and construction. Geotechnical recommendations presented in this report do not support the use of infiltration. DocuSign Envelope ID: 12C60CAF-B0E5-4C9F-B07F-927519CCDB4B Hardy Short Plat– LUA21-000169 Page 3 of 7 May 17, 2021 2. Core Design, with the Land Use Application, submitted a Preliminary Drainage Plan and Technical Information Report (TIR), dated March 10, 2021. Based on the City of Renton’s flow control map, the site falls within the Flow Control Duration Standard- Matching Forested and is within the Lower Cedar River Drainage Basin. The report is based on a Full drainage review and Core Requirements 1 thru 9 and the six Special Requirements have been discussed in the Technical Information Report. a. Offsite Analysis, RSWDM Core Requirement #2: All proposed projects must submit an offsite analysis report that assesses potential offsite drainage and water quality impacts associated with development of the project site. The preliminary TIR submittal includes a Level 1 Downstream Analysis. b. Flow Control, RSWDM Core Requirement #3: Any proposed detention and/or water quality vault shall be designed in accordance with the RSWDM that is current at the time of civil construction permit application. The project proposes a public detention vault within an easement on lot 1. i. See core requirement #6, the facility should be private. ii. The civil plans and the basin area appear to indicate a bypass area, however, the basin map includes non-target impervious surface. If a mitigation trade is being proposed applicant shall demonstrate compliance with section 1.2.3.2.G. Non-target impervious surfaces may bypass the facility as described in section 1.2.3.2.F. c. Conveyance, RSWDM Core Requirement #4: All new conveyance systems constructed as part of the project must be sized to RSWDM standards for the total tributary area (onsite and offsite) that the storm systems serve. The proposal indicates that an analysis will be addressed during final design. i. A conveyance capacity analysis shall be provided as part of the TIR included with the Civil Construction Permit application. d. Construction Stormwater Pollution Prevention, Core Requirement #5: The proposal indicates that a plan will be addressed during final design. i. A CSWPP plan shall be provided as part of the TIR and construction plans included with the Civil Construction Permit application. e. Maintenance and Operations, Core Requirement #6: The proposal indicates that a maintenance and operation manual will be addressed during final design. i. The proposed construction plans identify a public stormwater facility. Based on the information included in the preliminary submittal the facility meets the definition of Drainage Facilities to be Maintained by Private Parties in section 1.2.6 and should therefore be considered private. A declaration of covenant and grant of easement for the facility and conveyance system will be required for a private system. f. Water Quality, RSWDM Core Requirement #8: All projects that add more than 5,000 square feet of pollution generating impervious surface that is not fully dispersed and less than 0.75 acre of pollution generating pervious surface that is not fully dispersed require water quality. The proposal claims a surface area exemption and therefore does not provide water quality. i. The proposal identifies 6,191 SF of rooftop and 3,201 SF of shared/private driveways which exceeds the exemption criteria and would require basic water quality treatment. In order for rooftops to not be considered pollution generating a Leachable Metals covenant shall be included with the Civil Construction Permit. DocuSign Envelope ID: 12C60CAF-B0E5-4C9F-B07F-927519CCDB4B Hardy Short Plat– LUA21-000169 Page 4 of 7 May 17, 2021 g. Onsite BMPs, RSWDM Core Requirement #9: Appropriate on-site BMPs will be required to help mitigate the new runoff created by this development. The proposal discusses the feasibility of each BMP as listed in section 1.2.9.2.1 Small Lot BMP requirements. i. Each BMP feasibility shall be explicitly assessed with specific infeasibility criteria cited where not feasible. ii. Applicant may be able to obtain facility sizing credits for core requirement #3 based on review and implementation of BMP’s per section 1.2.9.4 of the RSWDM. 2. There is a 2021 system Development Charge of $2,100 per new single family residence. SDC fees are payable at construction permit issuance. a. A credit will be applied if the existing house is demoed. TRANSPORTATION/STREET COMMENTS 1. Frontage improvements are required for all new construction with valuation in excess of $150,000. The proposed development fronts Field Ave NE along the east property line. a. Field Ave NE is classified as a Residential Access street. Per the King County Assessors Map, existing right-of-way (ROW) is 60 feet. Per RMC 4-6-060 complete street standards, a Residential Access street requires a minimum ROW width of 53 feet that includes a paved roadway width of 26-feet, a 0.5-foot curb, an 8-foot landscape strip, a 5-foot sidewalk, street trees and storm drainage improvements. To meet the City’s Complete Street Standards and to retain the existing curb line, ROW dedication of approximately 3 feet is required pending final survey. i. The proposal identifies a 3 foot dedication, however, proposed plans show that 3-feet of dedication is more than what is necessary to install the required improvements. Dedication for ROW improvements only needs to extend to the back of sidewalk; applicant should verify dedication requirement with survey. 2. Street lighting improvements are not required for projects consisting of two (2) to four (4) units for residential. a. Based on information provided in application it is exempt from street lighting upgrades. 3. Shared driveways are allowed for access up to 4 lots provided at least one of the four (4) lots abuts a public right-of-way with at least fifty (50) linear feet of frontage and the subject lots are not created by a subdivision of ten (10) or more lots. Refer to the shared driveway requirements as outlined in RMC 4-6-060J. Shared driveways shall be within a tract; the width of the tract and paved surface shall be a minimum of sixteen feet (16'); the Fire Department may require the tract and paved surface to be up to twenty feet (20') wide. If a shared driveway abuts properties that are not part of the subdivision, an eight foot (8') wide landscaped strip shall be provided between the shared driveway and neighboring properties. a. Proposal indicates a 29 foot wide tract which is acceptable. 4. Paving and trench restoration within the City of Renton right of way shall comply with the City’s Restoration and Overlay requirements. 5. The 2021 Transportation Impact Fee per single family dwelling is $10,861.69. The transportation impact fee that is current at the time of building permit application will be levied, payable at building permit issue. A credit for the existing home will be applied. GENERAL COMMENTS DocuSign Envelope ID: 12C60CAF-B0E5-4C9F-B07F-927519CCDB4B Hardy Short Plat– LUA21-000169 Page 5 of 7 May 17, 2021 1. The fees listed are for 2021. The fees that are current at the time of the respective permit issuance will be levied. Please see the City of Renton website for the current fee schedule. 2. All civil plans shall conform to the current City of Renton survey and drafting standards. Current drafting standards can be found on the City of Renton website. 3. A separate plan submittal will be required for a construction permit for utility work and street improvements. All plans shall be prepared by a licensed Civil Engineer in the State of Washington. 4. Please see the City of Renton website for the Construction Permit Application and Construction Permit Process and Submittal Requirements. Please contact the City to schedule a construction permit intake meeting. 5. All utility lines (i.e. electrical, phone, and cable services, etc.) serving the proposed development must be underground in accordance with RMC 4-6-090. The construction of these franchise utilities must be inspected and approved by a City of Renton inspector. 6. Retaining walls that are 4’ or taller from bottom of footing and stormwater detention vaults will require a separate building permit. Structural calculations and plans prepared by a licensed engineer will be required as part of the building permit review. 7. Paving and trench restoration within the City of Renton right of way shall comply with the City’s Trench Restoration and Street Overlay Requirements. 8. Adequate separation between utilities as well as other features shall be provided in accordance with code requirements. a. 7-feet minimum horizontal and 1-foot vertical separation between storm and other utilities is required with the exception of water lines which require 10- feet horizontal and 1.5-feet 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. DocuSign Envelope ID: 12C60CAF-B0E5-4C9F-B07F-927519CCDB4B