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Ms. Katie Larsen <br />09/03/2025 <br />Page 6 <br />WSB (9/3/2025) Provide detail and describe directionally boring sanitary <br />main and penetrating existing structure <br />3.The sanitary sewer segment between MH-117 and MH-116 should be 8” PVC SDR <br />26 <br />a.All other sanitary sewer main should be 8” PVC SDR 35 <br />b.The minimum required slope is 0.40% <br />WSB (9/3/2025) Complete <br />4.Update all details C7.X/X shown on the plans <br />5.WSB (9/3/2025) Complete <br />6.Install 8" future sanitary sewer plug to the north of MH-113 <br />WSB (9/3/2025) Complete <br />7.WSB (9/3/2025) Provide both the directional bore length and the total pipe length <br />8.WSB (9/3/2025) Sanitary sewer directly under existing storm sewer structure <br />a.Show boring pit locations <br />b.How will storm sewer be protected during construction <br />•Transportation <br />The proposed roadway is consistent with the original Watermark preliminary plat. The <br />work in this development includes extending Osakis Street, proposed to be 32’ wide from <br />back-of-curb to back-of-curb, and installing a temporary cul de sac on the north end. The <br />termination of the curb will need to be further discussed with Public Works/Engineering. <br />Trails and sidewalks <br />A sidewalk is proposed along the west side of the road consistent with the original <br />Watermark preliminary plat. The termination point of the sidewalk will need to be further <br />discussed with Public Works/Engineering. <br />Comments: <br />1.Show the restoration limits as a result of the proposed sanitary sewer connection <br />(full-width) <br />WSB (9/3/2025) Complete <br />2.Include type 3 barricades and future thru street sign at the north end of the temporary <br />cul de sac <br />a.Provide protection for the temporary hydrant <br />WSB (9/3/2025) Complete <br />3.Further discussions of extending the existing bituminous trail or grading for a future <br />th <br />trail along the east side of CSAH 54 (20 Avenue) are needed <br />WSB (9/3/2025) Complete <br />thth <br />4.Utilize current street as-builts/plans for Watermark 5 and 6 Additions <br />WSB (9/3/2025) Complete <br />Erickson Property Development - Engineering Review <br /> <br />