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 101125 of 664

Dam NameHeight (ft)YearHazardCondition
Stevens Mill

Merrimack County

221930SignificantSatisfactory
Steels Pond

Hillsborough County

141909SignificantSatisfactory
Star Lake Dam

Sullivan County

71920LowSatisfactory
Stark Pond Dam

Merrimack County

121760LowSatisfactory
Squam Lake

Grafton County

171856HighSatisfactory
Sportsman Pond Dam

Cheshire County

151910LowSatisfactory
Spoonwood Pond Dam

Cheshire County

121855LowNot Rated
Spoons Pond Dam

Cheshire County

201966LowPoor
Spofford Lake Dam

Cheshire County

111919SignificantSatisfactory
Spectacle Pond Dam

Grafton County

71915HighSatisfactory
Spaulding Pond Dam

Strafford County

191899LowSatisfactory
South Milton

Strafford County

151893LowSatisfactory
South Mill Pond Dam

Rockingham County

141983LowSatisfactory
South Berwick

Strafford County

181923LowSatisfactory
Souhegan Site 8 South Dike

Hillsborough County

91977LowSatisfactory
Souhegan Site 8 Dam

Hillsborough County

251977HighSatisfactory
Souhegan Site 8 Cemetery Dike

Hillsborough County

161977LowSatisfactory
Souhegan Site 14 Dam

Hillsborough County

281836HighFair
Souhegan River Site 35 Dam

Hillsborough County

301965HighFair
Souhegan River Site 33 Dam

Hillsborough County

211971HighFair
Souhegan River Site 28 Dam

Hillsborough County

291964HighSatisfactory
Souhegan River Site 26 Dam

Hillsborough County

791965HighFair
Souhegan River Site 25b Dam

Hillsborough County

741967HighFair
Souhegan River Site 19 Dam

Hillsborough County

361962HighFair
Souhegan River Site 15 Dam

Hillsborough County

131963SignificantFair
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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.