Massachusetts Dams

1,291 dams tracked by the National Inventory of Dams

Total Dams

1,291

High Hazard

319

24.7%

Poor / Unsatisfactory

336

Average Age

112 yrs

Hazard Classification

High319 (24.7%)
Significant616 (47.7%)
Low356 (27.6%)

Condition Assessment

Satisfactory441 (34.2%)
Fair464 (35.9%)
Poor / Unsatisfactory336 (26.0%)
Not Rated50 (3.9%)

Federal

15

State

211

Local

585

Private

451

All Dams in Massachusetts

Showing 576600 of 1,291

Dam NameHeight (ft)YearHazardCondition
Lake Pentucket Dam East

Essex County

81808SignificantFair
Lake Rico Dam

Bristol County

271972SignificantFair
Lake Ripple Dam

Worcester County

151982SignificantSatisfactory
Lake Rohunta Dam

Worcester County

241943LowSatisfactory
Lake Samoset Dam

Worcester County

24HighSatisfactory
Lake Shirley Dam

Worcester County

211852HighSatisfactory
Lake Wampanoag Dam

Worcester County

22HighFair
Lake Warner Dam

Hampshire County

171918LowSatisfactory
Lake Watatic Dam

Worcester County

201955HighFair
Lake Whittemore Dam

Worcester County

18HighSatisfactory
Lake Wickaboag Dam

Worcester County

72000LowSatisfactory
Lake Williams Dam

Middlesex County

111882HighFair
Lake Wyola Dam

Franklin County

12HighFair
Lamberton Brook Dam

Worcester County

261965SignificantSatisfactory
Lambs Pond Dam

Worcester County

6SignificantSatisfactory
Lancaster Mill Pond Dam

Worcester County

26SignificantFair
Lancelot Lake Dam

Berkshire County

161967HighSatisfactory
Langwater Pond Dam

Bristol County

11SignificantFair
Larner Pond Dam

Worcester County

201830SignificantFair
Laurel Lake Dam

Berkshire County

12HighSatisfactory
Laurel Lake Dam

Franklin County

9LowFair
Lawrence Reservoir Dam

Essex County

281875LowSatisfactory
Leach Pond Dam

Bristol County

7LowUnsatisfactory
Leahey (Upper) Reservoir Dam and Dike

Berkshire County

571965HighSatisfactory
Leaping Well Reservoir Dam

Hampshire County

291890HighSatisfactory
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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.