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 401425 of 582

Dam NameHeight (ft)YearHazardCondition
Hackett Mills

Androscoggin County

81986LowSatisfactory
Gun Point Ice Pond

Cumberland County

91900LowFair
Gulf Island

Androscoggin County

991926HighSatisfactory
Guilford

Piscataquis County

121963LowNot Rated
Gristmill Pond

Penobscot County

151978LowUnsatisfactory
Green Lake

Hancock County

81911LowSatisfactory
Great Works Stream

Penobscot County

81963LowNot Rated
Great Works Pond

Washington County

131900LowNot Rated
Great Pond

Kennebec County

141900LowFair
Great Moose Lake

Somerset County

161924SignificantSatisfactory
Grassy Pond

Knox County

111962LowNot Rated
Grand Lake (Matagamon)

Penobscot County

251941HighPoor
Grand Falls Canal Headworks

Washington County

301915HighNot Rated
Graham Lake Flood Control

Hancock County

581994HighSatisfactory
Graham Lake Dam

Hancock County

431924HighSatisfactory
Gordon's Pond

Piscataquis County

401965SignificantNot Rated
Goodwins Mills

York County

121890LowNot Rated
Gold Brook

Somerset County

101949LowNot Rated
Gilman Stream

Somerset County

171911LowPoor
Gilman Mill

Penobscot County

151963LowNot Rated
Gilman Falls

Penobscot County

81906LowSatisfactory
Garland Pond Dike

Penobscot County

81905LowPoor
Garland Pond

Penobscot County

151905LowFair
Gardner Brook

Oxford County

211986LowNot Rated
Gambo

Cumberland County

241911LowSatisfactory
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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.