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 151162 of 162

Dam NameHeight (ft)YearHazardCondition
Baker River Site 8 Dam

Grafton County

631967HighSatisfactory
Baker River Site 6a Dam

Grafton County

681975HighPoor
Baker River Site 5 Dam

Grafton County

531967HighPoor
Baker River Site 2 Dam

Grafton County

681965HighFair
Baker River Site 11 Dam

Grafton County

241971HighPoor
Baker River Site 11a Dam

Grafton County

241971HighSatisfactory
Babbidge Reservoir Dam

Cheshire County

381931HighSatisfactory
Ashuelot Pond Dam

Sullivan County

131872HighPoor
Arlington Mills Res Wheeler Dam

Rockingham County

541922HighSatisfactory
Amoskeag

Hillsborough County

291921HighFair
Alton Power Dam

Belknap County

161923HighPoor
Abeniki Lake Dam

Coos County

401900HighSatisfactory
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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.