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HomeMy WebLinkAboutEX18_C_AdvisoryNotes_v1DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT Page 1 of 2 LUA22-000xxx 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 p rocess for the land use action. Planning: (Contact: Andrew Van Gordon, 425-430-7286,avangordon@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 will be required to submit a Final Stream Mitigation Report and Maintenance and Monitoring proposal. In addition, the applicant will be required to comply with all the code requirements of RMC 4-3-050 Critical Areas. This includes, but is not limited to, placing the critical area within a Native Growth Protection Easement, providing fencing and signage, and providing the City with a site restoration surety device and, later, a maintenance and monitoring surety device. 6. 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. 7. 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. 8. This permit 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: Nathan Janders, 425-430-7382,njanders@rentonwa.gov ) 1. See Attached Development Engineering Memo dated April 10, 2023. Fire Authority: ADVISORY NOTES TO APPLICANT Page 2 of 2 LUA22-000xxx (Contact: Corey Thomas, 425-276-9582, cthomas@rentonrfa.org) 1. 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 Soos Creek Water District. A water availability certificate is required to be obtained from them. A minimum of one new fire hydrant will be required to be installed. 2. The fire impact fees are currently applicable at the rate of $829.77 per single family unit. Credit will be granted for the removal of the one existing home. 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. The proposed looped roadway is adequate for fire apparatus turnaround purposes. Maximum grade is 15 percent. 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 Morris, 425-430-7521, cmorris@rentonwa.gov) 1. None Building: (Contact: Rob Shuey, 425-430-7290, rshuey@rentonwa.gov) 1. Recommendations of the geotechnical report must be followed as a condition of building permits. DEPARTMENT OF COMMUNITY AND ECONOMIC DEVELOPMENT M E M O R A N D U M DATE: April 10, 2023 TO: Andrew Van-Gordon, Senior Planner FROM: Nathan Janders, Civil Engineer III SUBJECT: Castro Short Plat 12727 SE Petrovitsky Road LUA22-000053 I have reviewed the application for the Castro Short Plat located at 12727 SE Petrovitsky Road and have the following comments: EXISTING CONDITIONS The site is comprised of an existing parcel (0739000085), is approximately 48,787 square feet in size and is generally rectangular in shape. The site currently is vacant with a structure on it. The site is fronted by SE Petrovitsky Road to the north, 128th Ave SE to the east, SE 176th St to the south and private property to the west. WATER: The proposed development is within Soos Creek Water and Sewer District water service area. SEWER: The proposed development is within Soos Creek Water and Sewer District sewer service area. STORM: The site is generally sloped from the east to the west. There is an existing 12-inch public stormwater main on the south side of SE Petrovitsky Road (no record drawing available). There is no existing on site stormwater conveyance system. STREETS: The proposed development fronts SE Petrovitsky Road along the north property line. SE Petrovitsky Road is classified as a 5-lane Principal Arterial street. Existing right-of-way (ROW) width, according to the King County Assessor Map, is 84 feet. Street frontage along this portion of SE Petrovitsky Road consists of a curb, gutter and approximate 8 foot sidewalk. The proposed development fronts 128th Ave SE along the eastern property line. 128th Ave SE is classified as a residential access street. Existing ROW width, according to the King County Assessor Map is approximately 25 feet. Street frontage along this portion of 128th Ave SE consists of a curb, approximate 5 foot walk and plantings at the back of walk. The proposed development fronts SE 176th St along the southern property line. SE 176th St is classified as a residential access street. Existing ROW width, according to the King County Assessors Map, is 30 feet. This portion of SE 176th St is currently unimproved and contains natural vegetation and trees. Castro Short Plat– LUA22-000053 Page 2 of 7 March 7, 2022 WATER COMMENTS 1. Water service is provided by Soos Creek Water and Sewer District. 2. Applicant shall obtain a water availability certificate from the District and provide it with the civil construction permit submittal. a. A water availability certificate was provided with the land use application. 3. Review of the water plans will be conducted by Soos Creek Water and Sewer District and the Renton Regional Fire Authority. 4. Plans approved by Soos Creek Water and Sewer District shall be routed to the City for final review prior to permit issuance. SEWER COMMENTS 1. Sewer service is provided by Soos Creek Water and Sewer District. 2. Applicant shall obtain a water availability certificate from the District and provide it with the civil construction permit submittal. a. A sewer availability certificate was provided with the land use application. 3. Review of the sewer plans will be conducted by Soos Creek Water and Sewer District. 4. Plans approved by Soos Creek Water and Sewer District shall be routed to the City for final review prior to permit issuance. STORM DRAINAGE COMMENTS 1. A geotechnical report dated April 15, 2019, completed by Geospectrum Consultants, Inc., 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 support the use of limited infiltration on every lot except lot 4. 2. Beyler Consulting, with the Land Use Application, submitted a Preliminary Drainage Plan and Technical Information Report (TIR), dated March 9, 2023. 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 Soos Creek 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. i. The TIR submit with the civil construction permit shall provide an evaluation of a Type 4 downstream drainage problem. 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 detention facility to meet the flow control requirement. i. The proposed conceptual detention facility is a vault made from pre-cast sections. Applicant shall revise the TIR and construction plans submit with the civil construction permit application to demonstrate how the proposed facility Castro Short Plat– LUA22-000053 Page 3 of 7 March 7, 2022 complies with chapter 5 of the RSWDM; in particular, section 5.1.3.1 for bottom slope and access. ii. The detention facility shall be contained within Tract B and shall be a minimum 5 feet from the tract lines. iii. WWHM modeling included with the preliminary TIR depicts an area of bypass, however, a bypass area is not discussed within the TIR. The TIR submit with the civil construction permit application shall provide a map delineating the bypass area and shall demonstrate compliance with section 1.2.3.2.E of the RSWDM. 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 system and capacity analysis shall be provided with the TIR submit at time of civil construction permit application. d. Construction Stormwater Pollution Prevention, Core Requirement #5: The proposal includes a preliminary CSWPP plan. e. Maintenance and Operations, Core Requirement #6: The proposal includes a preliminary maintenance and operation manual. f. Water Quality, RSWDM Core Requirement #8: All projects that add more than 5,000 square feet of pollution generating impervious surface (PGIS) 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 TIR indicates that all PGIS surfaces will be treated with Contech Stormfilter Catch Basins. i. The proposed Contech Stormfilter Catch Basins with ZPG media are conceptually acceptable. 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. 2. There is a 2023 system Development Charge of $2,300 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 SE Petrovitsky Road along the north property line, 128th Ave SE along the west property line, SE 176th St along the south property line, and private property along all other sides. a. The proposed project fronts SE Petrovitsky Road along the North property line. SE Petrovitsky Road is classified as a 5-lane Principal Arterial street with an existing ROW of approximately 84-feet per the King County Assessors Map. Per RMC 4-6-060, the minimum ROW width for a 5-lane Principal Arterial street is 103-feet that includes a 66- foot paved road (33 feet from centerline), a 0.5-foot curb, an 8-foot planting strip, an 8 foot sidewalk, a 2-foot clear space at the back of walk, street trees and storm drainage improvements. Approximately 9.5 feet of dedication will be required. Castro Short Plat– LUA22-000053 Page 4 of 7 March 7, 2022 i. However, staff has reviewed this portion of SE Petrovitsky Road and determined that the existing curb-curb width is acceptable. Therefore improvements, from the back of existing curb, shall include an 8-foot planting strip, an 8 foot sidewalk, a 2 foot clear space at the back of walk, street trees and storm drainage improvements. Approximately 2.5 feet of dedication is required pending final survey. A modification is required to be submit with the land use application. 1. The proposal includes a modification for, and depicts the above listed improvements. Staff has reviewed the modification and recommends approval. 2. The proposal should be updated to depict the required dedication. b. The proposed project fronts 128th Ave SE along the east property line. 128th Ave SE is classified as a Residential Access street with an existing ROW of approximately 50 feet per the King County Assessor Map. Per RMC 4-6-060, the minimum right-of-way width for a Residential Access street is 53 feet that includes a 26 foot paved road (13 feet from centerline), a 0.5 foot curb, an 8 foot planting strip, a 5 foot sidewalk, street trees and storm drainage improvements. Dedication may be required and will be determined by final survey. i. The proposal depicts retaining the existing curbline along 128th Ave SE. ii. The proposal should be updated to depict the required dedication. c. The proposed project fronts an unimproved portion of SE 176th St along the southern property line. SE 176th St is classified as a Residential Access street with an existing ROW of approximately 50 feet per the King County Assessor Map. Per RMC 4-6-060, the minimum right-of-way width for a Residential Access street is 53 feet that includes a 26 foot paved road (13 feet from centerline), a 0.5 foot curb, an 8 foot planting strip, a 5 foot sidewalk, street trees and storm drainage improvements. i. However, as there is not an existing roadway a minimum half street shall be installed including a 20-foot paved road, a 0.5 foot curb, an 8-foot planting strip, a 5-foot sidewalk, street trees and storm drainage improvements. The established curbline along the north side of SE 176th St immediately to the east shall be maintained provided at least 13 feet of pavement is provided from the curbline to the ROW centerline. Dedication of approximately 11.5 feet will be required. ii. The proposal depicts the above listed improvements. iii. The proposal should be updated to depict the required dedication. d. The proposed project includes a half public street extending from SE 176th St north along the properties western property line. The proposed half street depicts a 35 foot ROW that includes a 20 foot paved road, a 0.5 foot curb, an 8 foot planting strip, a 5 foot sidewalk, street trees and storm drainage improvements. i. The proposed offsite grading easement shall be recorded with a copy sent to the City’s development engineering plan reviewer prior to civil construction permit issuance. e. On and off-site ADA ramps (including pushbuttons), curbing, sidewalk and parking lot improvements will be reviewed in conjunction with the civil construction permit and will require a grading plan consisting of spot elevations and slopes showing that ADA and City specifications are being met. Existing facilities found to be out of compliance will have to be upgraded to meet current ADA and City specifications. 2. Street lighting improvements are not required for projects consisting of less than four (4) homes. 3. Refer to City code 4-4-080 regarding driveway regulations. Castro Short Plat– LUA22-000053 Page 5 of 7 March 7, 2022 a. A minimum separation of 5 feet is required between driveway and the property line. b. Maximum driveway slopes shall not exceed 15%. Driveways exceeding 8% shall provide slotted drains. c. The maximum width of single loaded garage driveway shall not exceed nine feet (9') and double-loaded garage driveway shall not exceed sixteen feet (16'). 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 2023 Transportation Impact Fee per single family dwelling is $12,208.54. The transportation impact fee that is current at the time of building permit application will be levied, payable at building permit issuance. A credit for the existing home will be applied. GENERAL COMMENTS 1. The fees listed are for 2023. 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.