2024-XX-XX-SkandiaDesignDRAFT.pdf

This is a design document from the Minnesota Department of Natural Resources (DNR) for the Skandia Wildlife Management Area Stream and Wetland Restoration project. The document contains detailed technical specifications, cross-sectional diagrams, LiDAR data, and aerial imagery showing plans for restoring a stream channel and associated wetlands. The existing channel has a length of 2,124 feet with a sinuosity of 1.0, while the proposed restored channel would be 3,367 feet long with increased sinuosity of 1.42. The project includes creating a floodplain 2,366 feet in length.

The proposed design would increase the channel/floodplain area from 60.9 ft² to 94 ft² and increase flood-flow volume capacity by 72% from 129,351.6 ft³ to 222,404 ft³. The document includes options for road modifications including abandonment, installation of a new culvert matching restored channel dimensions and slope, and installation of floodplain culverts to reduce flood-flow shear. The design includes detailed topographic cross-sections, reference channel surveys, and photographic documentation of existing site conditions showing wetland areas, stream channels, and culvert locations within the project area.