New Hampshire Dams

664 dams tracked by the National Inventory of Dams

Total Dams

664

High Hazard

162

24.4%

Poor / Unsatisfactory

152

Average Age

100 yrs

Hazard Classification

High162 (24.4%)
Significant185 (27.9%)
Low300 (45.2%)

Condition Assessment

Satisfactory267 (40.2%)
Fair169 (25.5%)
Poor / Unsatisfactory152 (22.9%)
Not Rated76 (11.4%)

Federal

22

State

170

Local

195

Private

261

All Dams in New Hampshire

Showing 151175 of 664

Dam NameHeight (ft)YearHazardCondition
Davison Wildlife Pond Dam

Sullivan County

231968LowSatisfactory
Dead River Dam 1

Coos County

471970HighFair
Dead River Dike

Coos County

141970LowFair
Deep Hole Pond Dam

Rockingham County

151974LowFair
Deering Reservoir Dam

Hillsborough County

251940HighSatisfactory
Deer Meadow Pond Dam

Merrimack County

151938LowFair
Deer Pond Dam

Rockingham County

121963LowFair
Dells Pond Outlet Dam

Grafton County

201935HighPoor
Derry Waste Lagoon Dam

Rockingham County

211978SignificantSatisfactory
Dickerman Pond Dam

Belknap County

201930SignificantPoor
Dimond Pond Dam

Rockingham County

121880UndeterminedNot Rated
Dodge Falls

Grafton County

181905LowSatisfactory
Dodge Pond Dam

Grafton County

131936LowSatisfactory
Dole Marsh Dam

Rockingham County

81977LowSatisfactory
Dole Reservoir Dam

Sullivan County

431913HighFair
Dole Reservoir Dike

Sullivan County

111913SignificantFair
Dorrs Pond Dam

Hillsborough County

91934HighPoor
Dorr Woolen Sewage Lagoon Dam

Sullivan County

201982SignificantFair
Downing Pond Dam

Strafford County

151921LowFair
Dream Lake Dam

Hillsborough County

91966UndeterminedNot Rated
Drew Lake South Weir

Hillsborough County

12LowNot Rated
Dube Pond Dam

Merrimack County

81966SignificantPoor
Dudley Pond Dam

Hillsborough County

13LowPoor
Dunklee Pond Dam

Hillsborough County

91986LowFair
Durham Reservoir Dam

Strafford County

171930HighSatisfactory
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.