Why is sedimentation a problem for waterways?

Sediment loading is recognized as one of the greatest threats to the Rivanna River and the Chesapeake Bay; sediment carries pollutants that have bonded to it into waterways, suspends in the water column and blocks sunlight from aiding in the growth of aquatic vegetation, clogs the gills of fish (sometimes suffocating them) and eventually destroys aquatic habitat in stream beds when it settles.

Show All Answers

1. What is stormwater, and why is it important?
2. Where does stormwater go after it enters storm drains?
3. What are impervious surfaces, and how do they affect stormwater?
4. Why is sedimentation a problem for waterways?
5. What is green stormwater infrastructure?
6. What is a watershed?