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Rehoboth Bay Watershed in Delaware

Picture of Rehoboth Bay Watershed

              Rehoboth Bay Watershed

Watershed Description

Picture of Rehoboth Bay

Rehoboth Bay looking west from Tower Road

Rehoboth Bay is the northernmost Inland Bay.  The town of Dewey Beach is located on the northeast end of the bay.

Watershed Area:  53,109 acres (21,492 hectares)

Location:  Eastern Sussex County in southeastern Delaware between Lewes-Rehoboth Canal on the north and Indian River Bay on the south.

Flow Direction:  Generally south towards Indian River Bay and the Atlantic Ocean.  Some flow goes through the Lewes-Rehoboth Canal.

Characteristics:  Agricultural and semi-rural watershed with flat terrain.

Major Vegetation Communities/Land Covers


Agricultural field is the #1 land cover in Rehoboth Bay watershed.  Water surface as Estuarine Coastal Polyhaline Water constitutes the #2 land cover.  Cultivated lawn and its associate impervious surface ranks #3 and #5.  Northeastern Coastal Plain Mixed Oak/Heath Forest is the only “natural community” to the make the list at #4.

Rehoboth Bay Watershed Vegetation Community/Land Covers (Top 5 for 2007)
Vegetation Community/Land Cover Acres Hectares
Agricultural Field 11,609.00 4,698.00
Estuarine Coastal Polyhaline Water 9,861.00 3,990.00
Cultivated Lawn 9,603.00 3,886.00
Northeastern Coastal Plain Mixed Oak/Heath Forest 4,740.00 1,918.00
Impervious Surface 3,790.00 1,534.00

*The table above is subject to change with more watershed mapping.

Managed Lands


Links of Interest


Vegetation Community/Land Cover Maps Available


One vegetation community/land cover map based on 2007 aerial imagery is available in .pdf format.  The map is in the process of completion and is provided “as is” for informational purposes.  Email for shapefile requests.