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Home My WebLink AboutApplication APPLICANT 8/22/2022SPRINGFIELD • ' ' • ' • 225 FIFTH STREET DEVELOPMENT AND PUBLIC WORKS SPRINGFIELD GON SPRINGFIELD, OR 97477 PHONE, 541.726.3753 FAX, 541.736.1027 www.spnngfield-orgov NOTICE OF INCOMPLETE APPLICATION Date of Letter: Planning Applicafion: Much 10, 2022, Accessory Dwelling Unit Type 8 1 1-22-000037-TYP2 639 19" Street, Springfield OR 97477 Applicant:/Property Owner: David Cole P.O.Box 70142 Springfield, OR 97475 Request: An application for Accessory Dwelling Unit approval was submitted to the Springfield Planning Division on February 8, 2022 for the construction of an Accessory Dwelling Unit. The site is at 639 190 Street, Springfield Oregon (Map and Tax Lot 17-03-36-12-12600). Status of the Application: The application is incomplete and requires additional information for review. The Springfield Development Code requires that submittal requirements of SDC 5.4-105 be fully met prior to application acceptance for review. The items listed below are needed to make the application complete for review: 1. All utility lines must be shown must be shown on the plan including distances from existing and proposed structures. Alt easements associated with these lines must be shown on the plan. The apphcanf is showing anew lateral to connect to the 6" sewer line to the east of the proposed ADD location. This is a lateral connection to provide service to existing homes to the north of 639 191 Street and cannot be used for connection. The applicant shall show the ADU being connected to one ofthe existing laterals to the 15" hunk line running east to west. The applicant shall provide a stormwater plan to accommodate runoff on the site. There is no existing piped public system with direct connection to this property. The public system consists ofweepholes to the street and the nearest inlet to the underground storm system is approximately 130' and this gutter capacity is shared with all other existing homes in the neighborhood. The gutter has limited capacity and any additional runoff from this lot is required to be mitigated on site as much as possible for all new impervious area on site. The applicant must provide a small site study drainage report that includes onsite mitigation measures, usually done through infiltration. The type of onsite stormwater management system will need to meet the requirements of that type of facility for size, construction and vegetation per the City of Eugene Stormwater Management Manual. If infiltration is not possible on this lot due to soil conditions this will need to be verified by an onsite infiltration test as defined in the Eugene Stormwater Management Manual. For questions on stormwater requirements please contact Clayton McEachem at 541-736-1036 or CmceachemOsorinefield-or.eov. the following items are not required for review of the Accessory Dwelling Unit application for planning but were of note from the Building Division for the upcoming building permit. Preparing these may save time during the building permit review: • The soils on this site are Hydric and will require a Geotechnical report prior to fust inspections. • Energy measures identified on Page 3 of the plans are out-of-date and reference the 2017 ORSC. A current version of the energy measures for 2021 ORSC needs to be submitted with plans. NI 101.1.2 • Whole-hguse ventilation system needs to be reflected on the plans. R3034, M1505.4 If you have any questions, please contact me at 726-2301 or (miller@springfreld-or.gov. S' aerely, ` , Liz Miller Planner, 19th 5T. 19 N CiR y W 21 � qg Q) —4 NORTH DAVID COLE °`°w L STORM WATER FLAN 1,12I122 BUILDING OE81CsN SPRINGFIELD, OR —WO151— 1 1 SIM FORM:. 2014 (Simplified Approach for Stormwater Management) Application David Cole Building Permit If Address 639 14th St Springfield, OR Residential/Commercial Tax Lot tt 17-03-36-12-12600 IOme Gael NRCS Soil Type or Measured Inflltraiton Rate Type 32 -Coburg -urban land complex Facility Sizing far Water Quality Flow Control and Flood Control """ Only for use in TvDe A & B Soils Surface. Facilities Impervious Area Managed Facility Sizing Faclity Surface Area Total Proposed New or Replaced Impervious Surface Area 884 Box ImperviousArea Reduction - StormwaterPlanter sf x Permeable Pavements sf Sand Filter sf x Eca-Raaf sf Sum of Total Contained Planter sf Impervious Area Managed 684 Box Tree Credit sf (Box 4 must be equ al or greater than Box 3) Total Impervious Area Reduction Overflow tog utter lw lel >0 Box 2 Total Impervious Area Requiring Stormwater Managemment 884 Box )11.1-Boi 2) Facility Sizing for Water Quality OnN Subsurface Infiltration Surface Facilities Impervious Area Managed Sizing Factor Faclity Surface Area Rain Garden sf x 0.05 =. Stormwater Planter sf x 0.03 = Swale 884 sf x 0.06 = 53.04 Vegetated Filter Strip sf x 0.2 = Sand Filter sf x 0.03 = Facility Sizing for Water Quality and Flow Control Surface Facilities Impervious Area Managed Sizing Factor Faclity Surface Area Rain Garden sf x 0.11 = Stormwater Planter sf x 0.07 = ' Sand Filter sf x 0.07 = Facility Sizing far Water Quality Flow Control and Flood Control """ Only for use in TvDe A & B Soils Surface. Facilities Impervious Area Managed Sizing Factor Faclity Surface Area Rain Garden at x 013 - StormwaterPlanter sf x 0.11 = Sand Filter sf x 0.11 = Sum of Total Impervious Area Managed 684 Box Point of Discharge lcheck ane) (Box 4 must be equ al or greater than Box 3) Overflow tog utter lw lel Overflow to public storm drain pip. rain Overflow to Open Drainage Subsurface Infiltration 1703 3612 12,600 63g I% Stream '77177 � SYZn T N 5 EWE[ LATERAL Qa✓J Cole Ro. 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