Maine Dams

582 dams tracked by the National Inventory of Dams

Total Dams

582

High Hazard

75

12.9%

Poor / Unsatisfactory

80

Average Age

111 yrs

Hazard Classification

High75 (12.9%)
Significant77 (13.2%)
Low429 (73.7%)

Condition Assessment

Satisfactory166 (28.5%)
Fair72 (12.4%)
Poor / Unsatisfactory80 (13.7%)
Not Rated264 (45.4%)

Federal

24

State

49

Local

155

Private

280

Tallest Dams

High Hazard Dams

Poor Condition Dams

All Dams in Maine

Showing 2650 of 75

Dam NameHeight (ft)YearHazardCondition
North Gorham

Cumberland County

281901HighSatisfactory
North Auburn

Androscoggin County

121964HighUnsatisfactory
New Mills

Kennebec County

221885HighFair
New Dam

York County

451910HighFair
Moxie

Somerset County

191925HighFair
Mount Zircon

Oxford County

701914HighFair
Mill Street

York County

201910HighFair
Millinocket Lake

Penobscot County

201910HighSatisfactory
Middle Dam

Oxford County

221883HighFair
Messalonskee Lake

Kennebec County

141992HighSatisfactory
Megunticook West

Knox County

141900HighPoor
Megunticook East

Knox County

181900HighPoor
Mcdonough Brook

Oxford County

191973HighFair
Mattaceunk

Penobscot County

451939HighSatisfactory
Mantle Lake

Aroostook County

161971HighFair
Lower West Bay Pond

Hancock County

121920HighPoor
Libby Brook

Aroostook County

531965HighUnsatisfactory
Lake Auburn

Androscoggin County

171946HighUnsatisfactory
Josephine

Aroostook County

311967HighUnsatisfactory
Indian Pond

Somerset County

1751955HighSatisfactory
Hydro-Kennebec (Old Canal Gatehouse)

Kennebec County

281989HighSatisfactory
Howard Pond

Oxford County

141800HighPoor
Hanson Brook

Aroostook County

451966HighFair
Gulf Island

Androscoggin County

991926HighSatisfactory
Grand Lake (Matagamon)

Penobscot County

251941HighPoor
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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.