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Delaware Department of Transportation

Stormwater Management


A "watershed" is an area that ultimately drains to a particular watercourse or body of water. Everyone lives in a watershed. It's a way of dividing up the land, not by roads or counties, but by topography.

Delaware is divided into four large watersheds, indicated by the four colors in the map below. These watersheds are further divided into 45 smaller sub-watersheds, which drain into creeks and streams. The individual watershed areas shown on this map drain to the respective identified watercourses.

Just about everything we do at home, school, work or play affects the watershed we live in. Every time we flush a toilet, sprinkle fertilizer on our lawns, build new houses, or widen a highway, we impact the waterways around us for generations to come.

Remember, clean water begins with YOU!

Delaware's Watersheds
Piedmont Drainage
  1. Naamans Creek
  2. Shellpot Creek
  3. Brandywine Creek
  4. Red Clay Creek
  5. White Clay Creek
  6. Christina River
Delaware Bay Drainage
  1. Delaware River
  2. Army Creek
  3. Red Lion Creek
  4. Dragon Run Creek
  5. C & D Canal East
  6. Appoquinimink River
  7. Blackbird Creek
  8. Delaware Bay
  9. Smyrna River
  10. Leipsic River
  11. Little Creek
  12. St. Jones River
  13. Murderkill River
  14. Mispillion River
  15. Cedar Creek
  16. Broadkill River
Chesapeake Bay Drainage
  1. Elk Creek
  2. Perch Creek
  3. C & D Canal West
  4. Bohemia Creek
  5. Sassafras River
  6. Chester River
  7. Choptank River
  8. Marshyhope Creek
  9. Nanticoke River
  10. Gum Branch
  11. Gravelly Branch
  12. Deep Creek
  13. Broad Creek
  14. Wicomico
  15. Pokomoke River
Inland Bays/Atlantic Ocean
  1. Lewes/Rehoboth Canal
  2. Rehoboth Bay
  3. Indian River
  4. Iron Branch
  5. Indian River Bay
  6. Buntings Branch
  7. Assawoman Bay
  8. Little Assawoman

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