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HomeMy WebLinkAboutApplication APPLICANT 5/26/2022City of Springfield Development & Public Works 225 Fifth Street Springfield, OR 97477 Development Issues Meeting (DIM) ISPRINQFIEID Required Project information (Applicant: Prospective Applicant Name: Matt McLaughlin complete this section) Phone: 541-484-2046 Company: NW Dental Partners Fax: Address: Prospective Applicant's Rep.: Anthony J. Favreau Phone: 541-683-7648 Company: The Favreau Group, LLC Fax: Address: 3750 Norwich Ave., Eugene, OR 97408 Property Owner: Same as applicant Phone: Company: Fax: Address: ASSESSOR'S MAP NO: 17-03-36-21 TAX LOT NOS :8800 Property Address: 1645 H St. Size of Property: 0.2 Acres 0 Square Feet Description of if you are oiling In this form by hand, please attach your proposal description to this application. Proposal- PArkinq lot for adjacent dental building Existing Use: Single Family Residence # of Lots Parcels: 1 Av . Lot Parcel Size: 8,586 sf Densi : du/acre Prospective I/ , Applicant: (L� Date: Signature Print Required Project Information (City Zntake Staff. complete this section) Case No.: `6ll -2-2- 0D0136-'pft.E Date: 5 7.6 7-z� Reviewed b Application Fee: l0'+6 'r' Technical Fee: 0 Posta a Fee: 0 TOTAL FEES: $ PROJECT NUMBER: Revised 5/21/13 KL I of 3 May 25, 2022 Assessor's Map: 17-03-36-21 Tax Lots 8800 DIM Questions Applicant: Matt McLaughlin Applicant's Representative: The Favreau Group 3750 Norwich Ave. Eugene, OR 97408 541-683-7048 Attn: Anthony Favreau 1. This is an employee parking lot. Do we need to provide an ADA space? 2. The stormwater facility has been sized for flow control. Is this correct? 3. Are there any other issues from the City's perspective? Stormwater Surface FiltrationAnfiltration Facility Sizing Spreadsheet 24 Hour Storm, NRCS Type 1 A Rainfall Distribution City of Eugene Name: Oakmont Dental Date: 5/25/2022 Address: NHSt. Permit Number: Permit Total Square Footage of Drainage Area= Sorinafield. OR Rio Cutlet Catchment ID: Parkina Lot rr: Anthony J. Favreau TY: The Favreau Group Complete this form for each drainage catchment in the project site that is to be sized per the Presumptive Approach. Provide a distinctive Catchment ID for each facility coordinated with the site basin map to correlate the appmpdate calculations with the facility. The maximum drainage catchment to be modeled per the Presumptive Approach is 1 acre (43,560 SF) =or infiltration facilities in Class A or B soils where no infiltration testing has been per romed use an infiltration rate of 0.5 in/hr. For all facilities use a maximum soil infiltration rate of 2.5 in/hr for lommi/growing medium. rome'Ym' from the dmpdown loxes below next to the design standards requirements for this facility. Pollution Reduction (PR)Yes Flow Control (FC)j Yes Destination(DT) No 'Anim'iivationkciiiry rnM1xrhgeenae rxmr1l1Vh,,m meetdvsmoton rsqui2meme Total Square Footage Impervious Area= 6670 sgfl Total Square Footage Pervious Area= 2020 sqN Impervious Area CN=l 98 Flow Control Pervious Area CN=l 135 Total Square Footage of Drainage Area= 8690 511 Time of Concentration Post Development=min Weighted Average CN=l 95 Pre�Development CN= 85 Time of Concentration Pre�Development= min Tested Soil Infiltration Rate= Iirtlhr(Soo role 4) Destination Design=®iNhr Design Soil Infiltration Ratej Whr Soil Infiltration Rate R uirement Rainfall De h Desi nStorm Stoma P011otlonlVuIlon 1.4inches Water Flow Control 3.6 inches Flood Control Destination I 3.6 inches Flood Control Facility Facility Side Slop( Max. Ponding Depth in Stormwater Facility= Depth of Growing Medium (So 5/25/2022-5:06 PM Facility Surface Facility Surface Pern Facility Bottom Facility Bottom Pern Ratio of Facility Area to Basin Vc Pollution Reduction-Calculation Results Peak Flow Rate to Stormwater Facility = 0.051 cfs Pik Facility Overflow Rate= 0.000 cfs Total Runoff Volume to Stormwater Facility 884 cf Total Overflow Volume= 0 cf Max. Depth of Stormwater in Facility= 5.4 in Drawdown Time= 3S hours Yes Facility Sizing Meets Pollution Reduction Standards? VES Meets Requirementoi No Facility Flooding? VES Meets Requirement for Maximum of 18 Hour Drawdown Time? Flow Control-Calculation Results Peak Flow Rate to Stormwater Facility = 0.174 cfs Peak Facility Overflow Rate= 0.110 cfs Total Runoff Volume to Stormwater Facility= 2193 cf Total Overflow Volume= 1022 cf Peak Off -Site Flow Rate Max. Depth of Stormwater in Facility= 18.0 in Filtration Facility Underdrain= 0.008 cfs Drawdown Time= 18.5 hours Pr vekmment Runoff Data Peak Flow Rate = 0.113 cfs Total Runoff Volume =1 1523 cf =Facility Sizing Meets Flow Control Standards? VES Meets Requirement for Post Development offsite flow less or equal to Pre-Development Flow? El VES Meets Requirement for Maximum of 18 Hour Drawdown Time? Destination-Calculation Results Peak Flow Rate to Stormwater Facility = N/A cfs Peak Facility Overflow Rate= N/A cfs Total Runoff Volume to Stormwater Facility= N/A cf Total Overflow Volume= N/A cf Max. Depth of Stormwater in Facility- N/A in Drawdown Time= N/A lours N/A Facility Sizing Meets Destination Standards? N/A Meets Requirement of No Facility Flooding? L.2LAJMftts Requirement for Maximum of 30 hour Drawdown Time? 5/25/2022-5:06 PM