Pavement and Other Hardened Surfaces in the Bay Watershed

This aerial image (below) shows the locations of roads, roofs, parking lots, and other developed surfaces in the Chesapeake Bay watershed that rain cannot penetrate.

Researchers have concluded that when two to 10 percent of a stream or river's drainage area is covered in hardened surfaces, fish and amphibians begin to disappear.

There are local streams in the Bay region whose aquatic life is at risk because their watersheds are at least four to nine percent covered. See three examples.

For more ideas, see "12 Things You Can Do to Clean Up Your Rivers, Streams, and the Chesapeake Bay."

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The 2018 State of the Bay Report makes it clear that the Bay needs our support now more than ever. Your donation helps the Chesapeake Bay Foundation maintain our momentum toward a restored Bay, rivers, and streams for today and generations to come.

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