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Name: Corrin Wendell Date: November 19, 2022 Page: 3 H:\LTCANADA_CI_MN\0N1126113\1_Corres\B_From Others\Edgerton Development\2022-09-21 Preliminary Plans\Review Memo.docx Plan/Profile – Street (C2.1) • Provide 25’ radii (minimum) at intersection with Edgerton Street • Provide curb and gutter to Edgerton Street and terminate with beaver tails at end-radius. • Curb and gutter should be style B618 from Edgerton Street through the proposed roadway radius to approximately station 1+50 and should taper to style surmountable prior to the first driveway. Plan/Profile – San & Water (C2.2) • Sanitary MH #2 will require an inside drop and 5’ diameter manhole. A standard detail can be provided for inclusion in the plans. • Watermain should be 8” diameter. Plan/Profile – Sanitary Sewer (C2.3) • No comments Plan/Profile – Sanitary Sewer (C2.4) • Is 4’ sump on storm MH #2 required by watershed for pretreatment? If not, I would suggest removing the sump; it is in a location that cannot be accessed for cleaning. • The sump on storm MH #5 is also inaccessible for routine cleaning. Provide a storm sump manhole just north of CBMH #6 that can be accessed from a parked vactor truck in the roadway. Assume 20’ of horizontal reach from centerline of a vactor truck. • Flow velocity and erosion is a concern at the flared end entering the iron enhanced filtration basin. Provide high-velocity protection in lieu of typical riprap (flexamat or similar) • Include 50’ of perforated draintile out of each catch basin to drain the subgrade Detail Plates • Provide a detail for the retaining wall within Outlot A. Include approximate geogrid dimensions, railing type, and guardrail information. SWPPP • Provide a plan-view depicition of the erosion control devices and temporary/final stabilization methods. Sincerely, Bolton & Menk, Inc. Eric Seaburg, PE Little Canada City Engineer