2024-XX-XX-SkandiaDesignDRAFT.pdf.crdownload

This LiDAR Cross Section Conceptual Design document from the Minnesota Department of Natural Resources (DNR) details the existing and proposed channel specifications for the Skandia Wildlife Management Area Stream and Wetland Restoration project in Mower County. The existing channel measurements include a channel/valley length of approximately 2,124 feet with a sinuosity of 1, a channel/floodplain area of 60.9 square feet, and a flood-flow volume of 129,351.6 cubic feet. The proposed channel design specifies a channel length of 3,367 feet, floodplain length of 2,366 feet, increased sinuosity of 1.42, channel/floodplain area of 94 square feet, and an enhanced flood-flow volume of 222,404 cubic feet, representing a 72% increase in flood capacity.

The document outlines road modification options including road abandonment, installation of a new culvert that matches restored channel dimensions and slope, and the addition of floodplain culverts to reduce flood-flow shear. The document notes that all numbers are preliminary based on conceptual design and will require further modeling. The presentation appears to contain 21 slides, with the final slides focusing on the conceptual design summary and road modifications.