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DEPARTMENT OF Metropolitan District <br />Waters Edge Building <br />TRANSPORTATION 1500 County Road B2 West <br />Roseville, MN 55113 <br />August 23, 2024 <br />Jennifer Green <br />Senior Administrative Assistant <br />City of Elk River <br />13065 Orono Parkway <br />Elk River, MN 55330 <br />SUBJECT: MnDOT Review #S24-033 <br />Cornerstone KIA-Elk River <br />SE Quad US 10 & 171 st Avenue NW <br />Elk River, Sherburne County <br />Dear Ms. Green: <br />Thank you for the opportunity to review the plans for Cornerstone KIA-Elk River. MnDOT has <br />reviewed the documents and has the following comments: <br />Right -of -Way: <br />Please label the MnDOT Right -of -Way line. <br />Questions about this comment should be sent to Chinou Vue, MnDOT Right -of -Way Manager at <br />Chinou.Vuegstate.mn.us or 651-234-7570. <br />Water Resources: <br />A MnDOT Drainage permit will be required to ensure that current drainage rates to MnDOT right- <br />of-way will not be increased. The permit applicant shall demonstrate that off -site run-off coming to <br />MnDOT drainage system and/or right-of-way will not increase as a result of the proposed project. <br />The drainage permit application, including the information below, should be submitted online to: <br />https://olpa.dot.state.mn.us/OLPA/. Upload a copy of this letter when applying for any permits. <br />The following information must be submitted with the drainage permit application: <br />1) A grading plan showing existing and proposed contours. <br />2) Drainage area maps for the proposed project showing existing and proposed drainage <br />areas. Any off -site areas that drain to the project area should also be included in the drainage area <br />maps. The direction of flow for each drainage area must be indicated by arrows. <br />3) Drainage computations for pre and post construction conditions during the 2, 10, and 100 year <br />rain events. <br />4) Time of concentration calculations. <br />4) An electronic copy of any computer modeling used for the drainage computations. <br />5) See also the attached Drainage Permits Checklist for more information. <br />An equal opportunity employer <br />MnDOT Metropolitan District, Waters Edge Building, 1500 County Road B2 West, Roseville, MN 55113 <br />Page 128 of 381 <br />