Assessing the Need for Floodplain Culverts Based on Geomorphology

This work will provide useful, Minnesota-specific guidance for floodplain culverts including a decision tool for benefits and avoided costs/negative impacts, and an addendum to the Minnesota Guide for Stream Connectivity and Aquatic Organism Passage Through Culverts. Researchers will examine how floodplain culverts can aid in passing flood flows and maintaining sediment transport processes, determine where floodplain culverts have the most benefit and should be considered, and identify and quantify the potential benefits of floodplain culverts as a function of site characteristics and culvert design.