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A ditch is proposed to be constructed to connect the south edge of West Vadnais Lake <br />with a proposed outlet structure approximately 150 feet to the south of the lake. The ditch <br />would be constructed with a bottom elevation of 881.9 (1988 datum), which is 0.8 feet <br />below the OHW of West Vadnais Lake. The width of the ditch at its bottom would be <br />four feet and it would be constructed with 1:5 side slopes. The entire ditch would become <br />an extension of-West Vadnais Lake and would become DNR protected water. The 1400 <br />square feet of ditch excavation that would be on existing upland is proposed to <br />compensate for the 620 square feet of ditch excavation in fringe wetland under WCA, in <br />slight excess of the 2:1 requirement. No replacement is required by the DNR for the <br />approximately 100 square feet of excavation for the ditch within the OHW of West <br />Vadnais Lake. <br />Adequate hydrology to maintain this ditch section as wetland would be provided by its <br />connection with West Vadnais Lake and by the function of the ditch as an outflow <br />channel for the lake. The ditch bottom will be amended with hydric soils from the <br />excavation where necessary. The bottom and side slopes of the ditch would be seeded <br />with BWSR Mix No. 2, Wet Prairie Mix. <br />