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HomeMy WebLinkAboutPacket, Pre PLANNER 5/12/2021Pre -Submittal Meeting Development and Public Works Department Reem 61 PRE -SUBMITTAL MEETING DATE: Friday, May 21, 2021 11:00 a.m. - 12:00 a.m. DPW /^....L......nee Room 616 1. Pre -Submittal (Subdivision Tentative)#811-21-000107-PRE 811-21-000108-PROJ Vern Benson Assessor's Map: 17-02-33-41 TL: 1704 Address: 5642 A Street Existing Use: single family dwelling Applicant has submitted plans for a 5 -lot residential subdivision Planner: Andy Limbird Meeting: Friday, May 21, 202111:00 — 12:00 via MS Teams SITE T1 VICINITY MAP 811 -21 -000107 -PRE Pre -Submittal Meeting 17-02-33-41 TL 1704 5642 A Street Vern Benson City of Springfield Development & Public Works 225 Fifth Street Springfield, OR 97477 Land Division Tentative Plan Partition, Subdivision SPRINGFIELD w 0#/ PApplication Type (Applicant: check artition Tentative Pre -Submittal: Subdivision Tentative Pre -Submittal: I® Partition Tentative Submittal: Subdivision Tentative Submittal: ❑ Required Project Information (Applicant., complete this section) Applicant Name: Vern Benson Phone: 541-688-8977 Company: Fax: Address: Applicant's Rep.: Eric Favreau Phone: 541-556-4425 Company: Favreau Engineering Fax: Address: 2206 Country Haven Dr, Eugene 97408 Property Owner: Vern Benson Phone: 541-688-8977 Company: Fax: Address: ASSESSOR'S MAP NO: 17-02-33-41 TAX LOT NOS : 01704 Property Address: 5642 A St Size of Property: 0.64 Acres © Square Feet ❑ Proposed Name of Subdivision: 5 Doves Description of If you are filling in this form by hand, please attach your proposal description to this application. Proposal: 5 lot sin le family subdivision with common driveway Existing Use: Single family dwelling # of Lots/Parcels: 5 Total acreage of parcels/ allowable density, 0.64 Proposed # Dwell Units 5 Si natures: Please sign and print your name and date in the appropriate Required Project Information (City Intake Staff., Associated Applications: box on the nexta e. complete this section) Signs: Pre -Sub Case No.: Date: Reviewed by: Case No.: Date: Reviewed by: Application Fee: $ Technical Fee: $ Posta a Fee: $ TOTAL FEES: $ PROJECT NUMBER: Revised 1/7/14 kl 1 of 10 225 FIFTH STREET SPRINGFIELD, OR 97477 PHONE: 541.726.3753 FAX. 541.736.1021 www.spnngfield-orgov December 6, 2013 REQUIRED STORMWATER SCOPING SHEET USE POLICY: In October 2003, Springfield Public Works released a trial "stonnwater scoping sheet," provided to help engineers and developers meet stormwater requirements in the Springfield Development Code (SDC) and Engineering Design Standards and Procedures Manual (EDSPM). After a five month trial period, it became apparent that users of the scoping sheet submitted much more complete applications than non-users. An added bonus was a decrease in the overall review time spent on the applications, resulting in quicker notice of decisions. As a result of the benefits of the scoping sheets, the City has decided to make their use a mandatory process. Current city policy is that the use of stormwater scoping sheets is required for all applications which require development review. All applications submitted to the City shall provide a copy of a completed stormwater scoping sheet with the application packet. Attached with this letter is the latest version of the scoping sheet, which reflects changes requested by the development community. PLEASE NOTE: SUBMITTED APPLICATIONS WILL NOW BE REQUIRED TO SUBMIT A COMPLETED STORMWATER SCOPING SHEET, STORMWATER STUDY AND PLANS IN CONFORMANCE WITH THE SCOPE REQUIREMENTS U 17 rrrrr 31b4LCeI91 ri7 V,P"IN N:1 1.) Obtain scoping sheet from application packet, city website, or other location. 2.) Fill out project information (top half of front sheet) prior to commencement of work on stormwater study. (Note: Do not sign scoping sheet until it is received from the City with requirements checked.) 3.) Mail, fax, or email all pages to: City of Springfield, Development and Public Works Dept., Attu: Clayton McEachem. 4.) Receive completed scoping sheet (filled out by the City) indicating minimum requirements for a complete stormwater study. 5.) Include four (4) copies of complete scoping sheet (signed by engineer at the bottom of page 2), stormwater study and plans that comply with the minimum required scope with submittal of application packet. The scoping sheet shall be included as an attachment, inside the front cover of the stormwater study. Stormwater scoping sheets can be found with all application packets (City website and the DPW front counter) as well as on the Engineering and Construction Resources webpage located at: httv://www.springfield- or.gov/DPW/EnginmringmdConstructionResources.htm under the Public Improvement Permit Projects Forms section. Thank you in advance for working with the City of Springfield with this new process. Sincerely, Clayton McEachern, PE City of Springfield, Development and Public Works Email: cmeeachem@springfieldor.gov Phone: (541) 736 —1036 Fax: (541) 736-1021 DEVELOPMENT AND PUBLIC WORKS SPRINGFIELD 225 FIFTH STREET OREGON SPRINGFIELD, OR 97477 PHONE: 541.726.3753 FAX: 541.726.1021 www.spdrygfiald­or.gov STORMWATER MANAGEMENT SYSTEM SCOPE OF WORK ----------- — (Area below this b'sefdled out by Applicant) __— (Please return to Clayton MEachern @ City ofSprtngiiield Development and Public Works, Fan # 736-1021, Phone # 736-1036), enwd:cnae�lern@sprirtglleldor.gov Project Name: Applicant: Assessors Parcel #: Date: Land Use(s): Phone #: Project Size (Acres): Fax #: Approx. Impervious Area: Email: Project Description (Include a copy of Assessor's map): Drainage Proposal (Public connection(s), discharge location(s), etc. Attach additional sheet(s) if necessary: Proposed Stormwater Best Management Practices: (Area below this line /'died outby the City andReturned m the Aaabeand (At a nurumuan, all boxes checked by the City on the front and backoftlus sheet shall be subnutted or on application to be coaWletefor subnuttal, afthough other requirements n be recess Drainage Study Type (EDSPM Section 4.03.2): (Note, UH may be substituted for Rational Method) ❑ Small Site Study—(use Rational Method for calculations) ❑ Mid -Level Development Study— (use Unit Hydrograph Method for calculations) ❑ Full Drainage Development Study— (use Unit Hydrograph Method for calculations) Environmental Considerations: ❑ Wellhead Zone: ❑ Wedand/Riparian: ❑ Soil Type: Downstream Analysis: ❑ N/A ❑ Flow line for starting water surface elevation: ❑ Design HGL to use for starting water surface elevation: ❑ Manhole/Junction to take analysis to: ❑ Hillside Development: ❑ Floodway/Floodplain: ❑ Other Jurisdictions Return to Clayton McEachem @ City of Springfield, email: cmceachem@springfeAd-or,gov, FAX., (541) 736-1021 COMPLETE STUDY ITEMS r Baredupon the tnfor nation provided on tie front ofdds sheet, the follou>ing represents a ndndnnou of uvh w it merkdfor on application to be complete for subnddal with respect to drainage; however, this list should not be used in lieu ofde Sprirgtield Development Cork (SDC) or the City's Engineering Design A3mma1. Connpltance with these requirements does not constitute site appromol, Adebooml site specific information nary be required Note: Upon scoping sheet subndttal, ensure completedfornu has been signed in the spare provickel below: Interim Design Standards/Water Quality (EDSPM Chapter 3 Req'd N/A ❑ ❑ All non -building rooftop (NBR) impervious surfaces shall be pre-treated (e. g. multi-chambered catchbasin w/oil filtration media) for stonmvater quality. Additionally, aminimum of 50% of the NBR impervious surface shall be treated by vegetated methods. ❑ ❑ Where required, vegetative stommwater design shall be consistent with design standards (EDSPM Section 3.02), set forth in Chapter 2 of the Eugene Stormrmer Management Manual. ❑ ❑ For new NBR impervious area less than 15,000 square feet, a simplified design approach may be followed as specified by the Eugene Stomrmvater Management Manual (Sec2A.1). ❑ ❑ If a stormrmer treatment Swale is proposed, submit calculations/specifications for sizing, velocity, flow, side slopes, bottom slope, and seed mix consistent with City of Springfield or Eugene's Stomrmvater Management Manual. ❑ Water Quality calculations as required in Section 3.03.1 of the EDSPM. All building rooftop mounted equipment, or other fluid containing equipment located outside of the building, shall be provided with secondary containment or weather resistant enclosure. ❑ n Design of Stoma Systems (EDSPM Section 4.04). ❑ ❑ Flow lines, slopes, rim elevations, pipe type and sizes clearly indicated on the plan set ❑ ❑ Minimum pipe cover shall be 15 inches for reinforced pipe and 36 inches for plain concrete and plastic pipe materials, or proper engineering calculations shall be provided when less. The cover shall be sufficient to support an 50,000 lb load without failure of the pipe structure. ❑ ❑ Manning's "n" values for pipes shall be consistent with Table 4-1 of the EDSP. All stoma pipes shall be designed to Other/Miscethmeous ❑ Drainage study prepared by a Professional Civil Engineer licensed in the state of Oregon. Existing and proposed contours, located at one foot interval. Include spot elevations and site grades showing how site ❑ A complete drainage study, as required in EDSPM Section 4.03.1, including a hydrological study map. drains. ❑ Calculations showing system capacity for a 2 -year stoma event and overflow effects of a 25 -year stoma event Private stommwater easements shall be clearly depicted on plans when private stommater flows from one property to The time of concentration (Tc) shall be determined using a 10 minute start time for developed basins. Review ofDownstream System EDSPM Section 4.03A.0 ❑ A downstream drainage analysis as described in EDSPM Section 4.03A.C. On-site drainage shall be governed by the Oregon Plumbing Specialty Code (OPSC). ❑ ❑ Elevations of the HGL and flow lines for both city and private systems where applicable. ❑ n Design of Stoma Systems (EDSPM Section 4.04). ❑ ❑ Flow lines, slopes, rim elevations, pipe type and sizes clearly indicated on the plan set ❑ ❑ Minimum pipe cover shall be 15 inches for reinforced pipe and 36 inches for plain concrete and plastic pipe materials, or proper engineering calculations shall be provided when less. The cover shall be sufficient to support an 50,000 lb load without failure of the pipe structure. ❑ ❑ Manning's "n" values for pipes shall be consistent with Table 4-1 of the EDSP. All stoma pipes shall be designed to Other/Miscethmeous ❑ Existing and proposed contours, located at one foot interval. Include spot elevations and site grades showing how site drains. ❑ Private stommwater easements shall be clearly depicted on plans when private stommater flows from one property to another. ❑ Drywells shall not receive runoff from any surface w/o being treated by one or more BMPs, with the exception of residential building roofs (EDSP Section 3.03A A). Additional provisions apply to this as required by the DEQ. Refer to thewebsite: him/Avww.deo.state.or.ushvo/uic/uic.htm for more infomuation. ❑ Detention ponds shall be designed to limit runoff to pre -development rates for the 2 through 25 -year storm events. *Thisform simU be inchukd m nn Nhuhmen5 inside the frontcover, ofthe stormnsder shady. * IAWORTANT..- ENGINEER PLEASE READ BEEOWAND SIGN' As the engineer of record, I hereby certify the above required items are complete and included with the submitted stommater study and plan set. Signature Date Form Version 5: June 2015 Famau Engineering FUR E U 2206 Eugene, R 97408 (541) 556-4425 5 DOVES SUBDIVISION May 4, 2021 Assessor's Map: 17-02-33-41 Tax Lot 1704 Applicants: Vern Benson 940 Hwy. 99 North Eugene, OR 97402 Applicant's Representative: Favreau Engineering, LLC 2206 Country Haven Dr. Eugene, OR 97408 541-556-4425 Attn: Enc Favreau LAND USE REQUEST The applicant proposes to divide the subject 0.64 -acre property to create 5lots and to provide all necessary infrastructure to support the development. The proposed residential use and density (7.8 net dwelling units/acre) are consistentwith the existing Low Density Residential (LDR) zoning and the City's standards for development in the LDR zoning district, where a maximum of 10 dwelling units/acre is permitted. Duplex dwellings may be permitted only on corner lots in the LDR district, so no duplexes are permitted. The proposal does not include any public street construction. SITE AND SURROUNDING CHARACTERISTICS The site is within an established Springfield residential neighborhood. The property is located on the north side of A Street between 56' St. and 5r S. The northern, easterly and westerly property lines of the proposed subdivision abut residential neighborhoods. The mapped soil series is #32 -Coburg - Urban Land Complex. 5.12-125 Tentative Plan Criteria The Director shall approve or approve with conditions a Tentative Plan application upon determining that all applicable criteria have been satisfied. If conditions cannot be attached to satisfy the approval criteria, the Director shall deny the application. In the case of Partitions that involve the donation of land to a public agency, the Director maywaive any approval criteria upon determining the particular criterion can be addressed as part of a future development application. A The request conforms to the provisions of this Code pertaining to lot/parcel size and dimensions. Page 1 of 4 Favreau Engineering Count FUR E U 2206 Eugene, R 97408 (541) 556-4425 Response: The proposed lots fronting the east -west streets meet the 4,500 sq. ff. minimum lot size and the 45 -foot street frontage requirements established by SDC. Lot 1 shall take access via an existing driveway to A Street. Lots 2 — 5 shall share a common driveway off of A Street. B. The zoning is consistent with the Metro Plan diagram and/or applicable Refinement Plan diagram, Plan District map, and Conceptual Development Plan. Response: The property is zoned Low Density Residential (LDR). The Metro Plan diagram for the subject property is LDR. C. Capacity requirements of public and private facilities, including but not limited to, water and electricity; sanitary sewer and stormwater management facilities; and streets and traffic safety controls shall not be exceeded and the public improvements shall be available to serve the site at the time of development, unless otherwise provided for by this Code and other applicable regulations. The Public Works Director or a utility provider shall determine capacity issues. Response: a. Water: The proposed development is within the Springfield city limits and will receive water service from the Springfield Utility Board (SUB). There is an existing 8" waterline in A Street. b. Wastewater: There is an existing 8" wastewater line in A St. which will service the entire subdivision. c. Storm Drain: There is an existing storm drain ditch on the north side of A Street. The proposed common driveway will have a treatment swale on the west side and overflow into the existing drainage ditch on the north side of St. Each lot will provide a soakage trench to accommodate all new structures. The soakage trenches will be designed at the time of building permit. d. Streets: No street improvements to A Street are proposed at this time. D. The proposed land division shall comply with all applicable public and private design and construction standards contained in this Code and other applicable regulations. Response: See Response to part C. E. Physical features, including, but not limited to: steep slopes with unstable soil or geologic conditions; areas with susceptibility of flooding; significant clusters of trees and shrubs; watercourses shown on the WQLW Map and their associated riparian areas; other riparian areas and wetlands specified in Section 4.3-117; rock outcroppings; open spaces; and areas of historic and/or archaeological significance, as may be specified in Section 3.3-900 or ORS 97.740-760, 358.905555 and 390.235-240, shall be protected as specified in this Code or in State or Federal law. Page 2 of 4 Famau Engineering FUR E U 2206 Eugene, R 97408 (541) 556-4425 Response: The Metro Area General Plan, Water Quality Limited Watercourse Map, State Designated Wetlands Map, Hydric Soils Map, Wellhead Protection Zone Map, FEMA Maps, and the list of Historic landmark sites have been consulted and with the exception noted below, there are no features needing to be protected or preserved on this site. If any artifacts are found during construction, there are state laws that could apply; ORS 97.740, ORS 358.905, ORS 390.235. If human remains are discovered during construction, it is a Class "C" felony to proceed under ORS 97.740. The site is relatively level and does not contain any waterways. Criterion 6 is met. Physical features, including but not limited to significant clusters of trees and shrubs, watercourses shown on the WQLW Map and their associated riparian areas, wetlands, rock outcroppings, and historic features have been evaluated and protected as required by this Code. F. Parking areas and ingress -egress points have been designed to: facilitate vehicular traffic, bicycle and pedestrian safety to avoid congestion; provide connectivity within the development area and to adjacent residential areas, transit stops, neighborhood activity centers, and commercial, industrial and public areas; minimize driveways on arterial and collector streets as specified in this Code or other applicable regulations and comply with the ODOT access management standards for State highways. Response: The applicant proposes to construct a common driveway as described in section C above. G. Development of any remainder of the property under the same ownership can be accomplished as specified in this Code. Response: There is no other adjoining property underthe same ownership that can be developed. H. Adjacent land can be developed or is provided access that will allow its development as specified in this Code. Response: Approval of the proposed subdivision will not impede development of adjacent land. I. Where the Partition of property that is outside of the city limits but within the City's urbanizable area and no concurrent annexation application is submitted, the standards specified below shall also apply. Response: This does not apply Page 3 of 4 FUR E U 2206 CoUntaWn Or ugenery R 97408 (541) 556-4425 Page 4 of 4 Famau Engineering FUR E U 2206 Eugene, R 97408 (541) 556-4425 5 Doves Subdivision Pre -Application Questions 1. Does the City see any issues with the proposed layout? 2. We are proposing to construct a grassy swale with an overflow, into the existing ditch along A St to treat the common driveway. Any issues? 3. We would like to defer the improvements along A St via irrevocable petition. Is this acceptable? Page 1 of 1 Favreau Engineering 6 Country Haven Dr FURS U �a Eugene, OR 97409 (541) 556-4425 5 DOVES SUBDIVISION DRAINAGE STUDY May 7, 2021 The subject site is identified on County Assessors Maps as 17-02-33-41 TL 01704. It is located on the north side of A St between 561h and 57th St. A mobile home currently sits in the northeast corner of the site and is proposed to remain. The site is relatively flat and portions of the site drain to the south into an existing open channel on the north side of A St. The existing channel contains culverts at driveway crossings. The common driveway will be directed to a proposed filtration rain garden. The proposed rain garden has been sized per the City of Eugene Stormwater SIM form (see attached) and the design is shown on the plans. All lots will provide individual treatment of stormwater runoff. The sizing of these facilities will be determined during the building permit process. CONCLUSION Based on the attached calculations, the proposed drainage system has been sized appropriately. PRop ' AG 1 N E °�ss�0 2 ir C SO �° P rz,z° J F�Rra; tt/a/a SIM FORM: 2014 (Simplified Approach for Stormwater Management) Application 5 Doves Subdivision Building Permit# Address 5642 A St Springfield, OR 97478 Residential/ mmercial Tax Lot# 17-02-33-41-01704 Icrckoel NRCS Soil Type or Measured Infikraiton Rate C Facility Sizine for Water Ouality and Flow Control Surface Facilities Facility Sizing Sizing Factor Faclity Surface Area Total Proposed New or Replaced Impervious Surface Area sf 2315 Box 1 Impervious Area Reduction sf x 0.07 = Permeable Pavements sf sf x 0.07 = Eco -Roof sf Quality, Flow Control and Flood Control "' Only for use in Type A & B Soils Contained Planter sf Surface Facilities Impervious Area Managed Tree Credit sf Rain Garden sf x 0.13 = Stormwater Planter sf Total Impervious Area Reduction Sand Filter >Box 2 Total Impervious Area Requiring Stormwater Managemment Box (eox 1-eox 2) Facility Sizine for Water Quality Only Surface Facilities Impervious Area Managed Sizing Factor Faclity Surface Area Rain Garden 2315 sf x 0.05 = 116 Stormwater Planter sf x 0.03 = Swale sf x 0.06 = Vegetated Filter Strip sf x 0.2 = Sand Filter sf x 0.03 = Facility Sizine for Water Ouality 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 for Water Quality, Flow Control and Flood Control "' Only for use in Type A & B Soils Surface Facilities Impervious Area Managed Sizing Factor Faclity Surface Area Rain Garden sf x 0.13 = Stormwater Planter sf x 0.11 = Sand Filter sf x 0.11 = Sum of Total Impervious Area Managed 2315 Box (Box 4 must be equal or greater than Box 3) Point of Discharge (check one) Overflow to gutter (weephole) Overflow to public storm drain pipe Overflow to Open Drainage X Subsurface Infiltration 2014 SIM FORM: Tree Credit and Rainwater Harvesting Worksheet See "Tree Credits" section for more information regarding the use of Reesto meet StorrowMer Impervious Area Reduction. New Evergreen Trees To receive Impervious Area Reduction Credit, new evergreen trees must be planted within 25 feet of the new or replaced impervious surfaces. New trees cannot be credited against rooftop areas. Minimum tree height (at the time of planting) to receive credit is 6 feet Enter number of new evergreen trees that meet qualification requirements in Box A H Bo%A Multiply Box A by 200 and enter result in Box B Box B New Deciduous Trees To receive Impervious Area Reduction Credit new large deciduous trees must be planted within 25 feet of the newer replaced impervious surfaces and new small deciduous trees must be plants! within 10 feet of new or replaced impervious Surfaces. New trees cannot be credited against rooftop areas. Minimum tree caliper (at the time of planting) to receive credit is 2 inches. Enter number of new deciduous trees that meet qualification requirements in Box C Box C Multiply Box C by 100 and enter result in Box D Box D Existing Tree Canopy To receive Impervious Area Reduction Credit existing large tree carppies must be within 25 feet and existing small tree canopies must be within 10 feet of ground level impervious surfaces (cannot be credit against roof top surfaces). Existing tree campy credited towards Impervious Area Reduction must be preserved during and after construction throughout the life of the development. Minimum tree caliper to receive credit is 4 inches. No credit will be given to existing tree canopy located within environmental conservation areas. Enter square footage of existing tree canopy that meet qualification requirements in Box E. F—]BoxE Multiply Box Eby 0.5 and enter result in Box F. JBox F Total Tree Credit Add Boxes B, D and F and enter the result in Box G Box G Multiply Box I of Form SIM by 0.1 and enter the result in Box H. Enter the lesser of Box G and H in Box 1. mals Is the amount to be entered as "nee Credits on Form SIM.) SIM FORM 2014 Instructions 1. Enter square footage (sf) of total impervious area being developed into BOX 1. 2. Enter square footage(sf) for impervious area reduction techniques. 3. Enter sum of the impervious area reduction techniques into BOX 2. 4. Subtract BOX 2 from BOX 1 to find BOX 3, the amount of impervious area that requires stormwater management. 5. Select appropriate stormwater management facilities. 6. Enter the square footage of impervious area managed that will flow into each facility type. 7. Multiply each impervious area managed by the corresponding sizing factor. Enterthis area as the facility surface area, This is the size of faclity required to manage runoff 9. Where selecting facilities that will overflow, select the point of discharge location. 10. Enterthe sum of the total of all the impervious area managed into BOX 4. BOX 4 must be greaerthan or equal to BOX 3.