3-23-26 Plan Commission Packet

TRIO DESIGNLANDSURVEYING CIV INGILENGINEER Zoning District SummaryTown of GeneseeA-5 (Current Zoning)-Lot Size = 5 acre (217,800 sf)-Lot Width = 300' (average)-Setback = 50' - Offsets = 30' Proposed Variance/WaiverTown of Genesee- Request the Town Plan Commission & Board waive 375-52.E. requirement fora lot depth to width ratio of 2.5 to 1. Conservation Easement - Lots 1 - 7A portion of Lots 1 - 7 are subject to a Conservation Easement recorded by separatedocument. The purpose of this easement is to preserve and protect in perpetuity theconservation values of the easement area. Building Area and Setback Requirements:·Per Town zoning requirements the minimum front setback for a proposed structure is 50'.The minimum side yard and rear yard offset is 30'.·Primary residential buildings are intended to be restricted to the "Primary Building" frontsetback linework (depth varies), and the Town zoning side and rear offsets as detailedabove. This is intended to preserve the conservancy efforts of the proposed development. Engineers | Architects | Planners | Scientists Short Elliott Hendrickson Inc., N19 W24133 Riverwood Drive, Suite 160, Waukesha, WI 53188 -1172 262.646.6855 | 888.908.8166 fax | sehinc.com SEH is 100% employee -owned | Affirmative Action –Equal Opportunity Employer MEMORANDUM TO: Mark Lyons - Town Planner FROM: Mark Mickelson, PE (Lic. Wi) DATE: March 18, 2026 RE: Davies Farm Preliminary Civil Plans SEH No. 133785 14.00 Dear Mark Please see below for my comments on the provided Davies Farm Preliminary Civil Plan, dated 03/02/2026: My list is fairly short for the Civil Plans review. Some comments parallel Leif Hauge's: • There is no storm sewer sizing calculations or design information. This is a challenging site with utilizing curb and gutter on pretty steep slopes. How are they going to get a 100 yr storm into inlets and storm sewer in Court "A" into the Basin 1B just north of USH 18? All inlets will need to be analyzed to understand gutter spread and ponding at low points and bypassing on sloped inlets. The use of vane grates on sloped inlets will likely be needed and called out. • The intersection of Court A and USH 18 is quite steep and no sag point provided. As shown, there is likely a considerable amount of drainage that will sheet flow across USH 18. This is a steep road along a wooded, north facing hillside. While this may be a WDOT permit review item, this should be worked out with them quickly as it will impact the Court A design. Please provide any correspondence from the WDOT from any previous reviews to substantiate the current design and geometry. • They show a 60 ft tree Preservation Easement on the south lot line of Lot 2 of the future CSM, and a Conservation Easement on Lot 1, but show a considerable amount of grading within the easements. • I would like to see more detail on the Court A-Court A intersection. I would recommend a full crown be provided for the east-west segment of the cul-de-sac to help prevent sheet flow from occurring across the intersection. This is still a preliminary submittal without the detailed storm sewer information, but there is enough here to help the Plan Commission review. My comments are all items that should be able to be resolved. Sincerely, Mark Mickelson, PE Town Engineer Memorandum March 18, 2026 Page 2 MM