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Ms. Katie Larsen <br />09/04/2025 <br />Page 2 <br />a.Provide what the need is for having the floor elevations as high as they are <br />proposed for the buildings. <br />•Grading <br />The Wilkinson Waters Development includes site grading for the townhomes, apartments, <br />and retail space as well as the connecting roads, driveways, and parking areas. <br />Comments: <br />1.Site should be designed to better match existing grades. Lowering the site <br />approximately 5 feet from what is proposed. The applicant should consider an <br />underground subsurface drainage system. <br />ISG Response (7/14/2025) Further testing is being conducted on site to determine <br />the groundwater elevations. Grading will be updated per results of these tests. <br />WSB Response/Comment (9/4/2025) In process <br />2.Provide EOF elevations, locations and routes for all low points in the paved and <br />greenspaces. <br />ISG Response (6/9/2025) – EOF elevations have been added to the Grading Plan. <br />WSB Response (6/20/2025) – EOF elevations are in compliance with freeboard <br />requirements. <br />ISG Response (7/14/2025)ISG Response: EOF elevations have been added to the <br />Grading Plan. <br />WSB Response/Comment (9/4/2025) Additional EOFs are still required for low <br />points in the roadway and greenspaces. Note impact of downstream EOFs being higher <br />than upstream EOFs. <br />3.Retaining walls exceeding 4’ in height shall require a plan prepared by a Minnesota <br />licensed structural engineer submitted for review and approval by the Building Official <br />prior to permit issuance <br />a.Provide top and bottom of wall elevations at beginning and end of wall, at <br />point of maximum height, and at points along the length of wall to adequately <br />describe the retaining wall and to display final grading accurately. <br />b.Retaining walls are not allowed in easements or public rights-of-way <br />c.Provide fences for safety as required <br />ISG Response (7/14/2025)Noted, safety fence has been added to all walls over 4’ of <br />height <br />WSB Response/Comment (9/4/2025) Additional instances required on plans <br />4.Show all high and break points <br />ISG Response (7/14/2025)Updated spot elevations to callout high points and break <br />points <br />WSB Response/Comment (9/4/2025) Additional instances required on plans <br />5.Label all inlet elevations <br />ISG Response (7/14/2025)All inlet elevations at structures have been added to the <br />plans <br />WSB Response/Comment (9/4/2025) Additional instances required on plans <br />6.Provide slopes across parking areas and along curbs <br />Wilkinson Waters Development - Engineering Review <br /> <br />