Culvert Length and Interior Lighting Impacts to Topeka Shiner Passage
The Minnesota Department of Transportation has released a report that summarizes recommendations for light mitigation in order to facilitate fish passage through box culverts. Culverts can deter fish passage due to insufficient water depth and sunlight blockage. This report focuses on warm water species, specifically the endangered Topeka Shiner.
This Summary Last Modified On: 12/11/2017