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
- Indian Pond 175 ft
- Wyman 155 ft
- Gulf Island 99 ft
- Ripogenus 83 ft
- Skelton 75 ft
High Hazard Dams
- Indian Pond High
- Wyman High
- Gulf Island High
- Ripogenus High
- Skelton High
Poor Condition Dams
- Libby BrookUnsatisfactory
- WoodlandPoor
- Bryant PondUnsatisfactory
- Old FallsPoor
- Wilson StreamPoor
All Dams in Maine
Showing 151–175 of 429
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Otter Dam Washington County | 11 | 1964 | Low | Fair |
| Otis Franklin County | 19 | 1898 | Low | Satisfactory |
| Orono Penobscot County | 15 | 1917 | Low | Satisfactory |
| Orland Village Hancock County | 15 | 1930 | Low | Not Rated |
| Oakland Kennebec County | 14 | 1901 | Low | Satisfactory |
| Number One Pond York County | 14 | 1912 | Low | Fair |
| Norway Hydro Oxford County | 19 | 1935 | Low | Satisfactory |
| North Vassalboro Kennebec County | 15 | 1900 | Low | Not Rated |
| North Pond Oxford County | 11 | 1890 | Low | Not Rated |
| Nicatous Stream Hancock County | 8 | 1974 | Low | Not Rated |
| New River Channel Dam Cumberland County | 13 | 1911 | Low | Satisfactory |
| New Pond Lincoln County | 21 | 1992 | Low | Fair |
| Nesowadnehunk Piscataquis County | 12 | 1930 | Low | Not Rated |
| Nequasett Lake Sagadahoc County | 12 | 1920 | Low | Satisfactory |
| Nadeau Pond Dam Aroostook County | 14 | 2007 | Low | Not Rated |
| Mulligan Bog Somerset County | 14 | 1960 | Low | Not Rated |
| Montsweag Lincoln County | 18 | 1941 | Low | Not Rated |
| Monson Pond Aroostook County | 16 | 1925 | Low | Not Rated |
| Milo Piscataquis County | 8 | 1881 | Low | Satisfactory |
| Mill Stream Somerset County | 27 | 1900 | Low | Not Rated |
| Mill Pond Lpp Penobscot County | 18 | 1917 | Low | Not Rated |
| Mill Pond Kennebec County | 16 | 1915 | Low | Not Rated |
| Mill Pond Kennebec County | 14 | 1850 | Low | Not Rated |
| Mill Pond Cumberland County | 18 | 1890 | Low | Not Rated |
| Mill Pond Oxford County | 25 | 1850 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.