Bellamy Reservoir

Bellamy Reservoir is a 333-acre (135 ha)[1] impoundment located in Strafford County in eastern New Hampshire, United States, in the town of Madbury. An eastern arm of the lake extends a short distance into Dover. The reservoir serves as the primary water supply for the city of Portsmouth, New Hampshire. Its outlet is the Bellamy River, a tributary of Great Bay, a tidal estuary connected to the Atlantic Ocean by the Piscataqua River. The dam was built in 1960 to supply water to Portsmouth and the Pease Air Force base.[2]

Bellamy Reservoir
Bellamy Reservoir dam in Madbury
Bellamy Reservoir Show map of New Hampshire Bellamy Reservoir Show map of the United States
Location	Strafford County, New Hampshire
Coordinates	43°11′17″N 70°57′13″W
Type	Reservoir
Primary inflows	Bellamy River Mallego Brook
Primary outflows	Bellamy River
Basin countries	United States
Max. length	3.2 mi (5.1 km)
Max. width	0.5 mi (0.8 km)
Surface area	333 acres (135 ha)
Average depth	10 ft (3.0 m)
Max. depth	30 ft (9.1 m)
Surface elevation	125 ft (38 m)
Settlements	Madbury

The reservoir is classified as a warmwater fishery, with observed species including largemouth bass, chain pickerel, horned pout, and black crappie.[1]