In stewarding our natural resources, we can’t be too cautious about protecting the aquatic life in our rivers and streams.Thousands of manmade dams and stream diversions have seriously degraded and obstructed the natural habitat of our native fisheries. Author Emily Clegg offers five case studies to show how precast concrete box culverts are restoring essential connectivity for aquatic life in the Great Lakes Basin by eliminating manmade obstructions. Read More