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 701725 of 1,291

Dam NameHeight (ft)YearHazardCondition
Lancaster Mill Pond Dam

Worcester County

26SignificantFair
Lambs Pond Dam

Worcester County

6SignificantSatisfactory
Lamberton Brook Dam

Worcester County

261965SignificantSatisfactory
Lake Wyola Dam

Franklin County

12HighFair
Lake Williams Dam

Middlesex County

111882HighFair
Lake Wickaboag Dam

Worcester County

72000LowSatisfactory
Lake Whittemore Dam

Worcester County

18HighSatisfactory
Lake Watatic Dam

Worcester County

201955HighFair
Lake Warner Dam

Hampshire County

171918LowSatisfactory
Lake Wampanoag Dam

Worcester County

22HighFair
Lake Shirley Dam

Worcester County

211852HighSatisfactory
Lake Samoset Dam

Worcester County

24HighSatisfactory
Lake Rohunta Dam

Worcester County

241943LowSatisfactory
Lake Ripple Dam

Worcester County

151982SignificantSatisfactory
Lake Rico Dam

Bristol County

271972SignificantFair
Lake Pentucket Dam East

Essex County

81808SignificantFair
Lake Noquochoke Upper Dike

Bristol County

8LowPoor
Lake Noquochoke Upper Dam

Bristol County

11LowPoor
Lake Monomonac Dam

Worcester County

16HighFair
Lake Mirimichi Dam

Norfolk County

111925SignificantFair
Lake Mattawa South Dam

Franklin County

101893SignificantPoor
Lake Mattawa North Dam

Franklin County

151893SignificantPoor
Lake Maspenock Dam

Worcester County

181901HighFair
Lake Lashaway Dam

Worcester County

231926SignificantFair
Lake Holbrook Dam

Norfolk County

101920SignificantPoor
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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.