A lot of trash accumulates along Bay Area highways and freeways. Rain and wind can drive that trash into the Bay or into storm drains that empty into the Bay. Trash pollution blights views of the Bay, inhibits Bay recreation, and harms the Bay’s wildlife.
The California Department of Transportation, or Caltrans, is responsible for preventing trash pollution on streets from getting into the Bay (and waterways all around the state). But Caltrans is not doing enough to clean up roadside litter.