Dams in Penobscot County, Maine
67Total Dams
8High Hazard
7Significant
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Dolby | High | Satisfactory | 66 | Hydroelectric | 1906 |
| Mattaceunk | High | Satisfactory | 45 | Hydroelectric | 1939 |
| North Twin | High | Satisfactory | 35 | Hydroelectric | 1934 |
| Stone Dam | High | Satisfactory | 27 | Hydroelectric | 1900 |
| Grand Lake (matagamon) | High | Poor | 25 | Hydroelectric | 1941 |
| Millinocket Lake | High | Satisfactory | 20 | Hydroelectric | 1910 |
| Wassookeag Lake | High | Satisfactory | 14 | Flood Risk Reduction | 1914 |
| Stone Dam - Dike 8 | High | Satisfactory | 9 | Hydroelectric | 1900 |
| Malletts Mill | Significant | Poor | 16 | Fire Protection, Stock, Or Small Fish Pond | 1836 |
| North Twin - Dike 3 | Significant | Satisfactory | 15 | Hydroelectric | 1934 |
| North Twin - Dike 4 | Significant | Satisfactory | 11 | Hydroelectric | 1934 |
| North Twin - Dike 2 | Significant | Satisfactory | 11 | Hydroelectric | 1934 |
| North Twin - Dike 5 | Significant | Satisfactory | 11 | Hydroelectric | 1934 |
| North Twin - Dike 1 | Significant | Satisfactory | 11 | Hydroelectric | 1934 |
| Swetts Pond | Significant | Poor | 6 | Flood Risk Reduction | 1946 |
| Pond Farm | Low | Fair | 40 | Recreation | 1920 |
| West Enfield | Low | Satisfactory | 39 | Hydroelectric | 1988 |
| Medway | Low | Satisfactory | 35 | Hydroelectric | 1922 |
| Milford | Low | Satisfactory | 34 | Hydroelectric | 1906 |
| Lowell Tannery | Low | Satisfactory | 27 | Hydroelectric | 1987 |
| East Millinocket | Low | Satisfactory | 26 | Hydroelectric | 1907 |
| Stillwater | Low | Satisfactory | 25 | Hydroelectric | 1902 |
| Rocky Bottom | Low | Not Rated | 20 | Hydroelectric | 1965 |
| Mattanawcook Pond | Low | Poor | 19 | Flood Risk Reduction | 1918 |
| Folsom Pond | Low | Poor | 18 | Flood Risk Reduction | 1918 |
| Mill Pond Lpp | Low | Not Rated | 18 | Flood Risk Reduction | 1917 |
| Howland | Low | Not Rated | 17 | Hydroelectric | 1916 |
| Village | Low | Not Rated | 16 | Hydroelectric | 1826 |
| Whitney Irrigation Pond | Low | Poor | 16 | Irrigation | 1950 |
| Sebasticook | Low | Satisfactory | 15 | Hydroelectric | 1988 |
| Garland Pond | Low | Fair | 15 | Fire Protection, Stock, Or Small Fish Pond | 1905 |
| Gristmill Pond | Low | Unsatisfactory | 15 | Hydroelectric | 1978 |
| Run Around | Low | Satisfactory | 15 | Hydroelectric | 1894 |
| Gilman Mill | Low | Not Rated | 15 | Hydroelectric | 1963 |
| Orono | Low | Satisfactory | 15 | Hydroelectric | 1917 |
| Brewer Lake | Low | Not Rated | 14 | Water Supply | 1900 |
| Long Pond | Low | Not Rated | 14 | Hydroelectric | 1949 |
| Spragues Mill | Low | Poor | 14 | Recreation | 1955 |
| Cold Stream Pond | Low | Fair | 13 | Fish and Wildlife Pond | 1890 |
| Sam Ayers Deadwater Outlet Dam | Low | Not Rated | 13 | Fish and Wildlife Pond | 2002 |
| Stanhope Mill #2 Lower | Low | Not Rated | 13 | Hydroelectric | 1827 |
| Lowell Lake | Low | Poor | 12 | Other | 1900 |
| French Stream | Low | Not Rated | 12 | Recreation | 1850 |
| Cambolasse Pond | Low | Not Rated | 12 | Recreation | 1950 |
| Lovley's Dam | Low | Not Rated | 12 | Recreation | 1974 |
| Long Pond | Low | Not Rated | 12 | 1915 | |
| Stump Pond | Low | Poor | 12 | Hydroelectric | 1936 |
| Plymouth | Low | Not Rated | 11 | Other | 1920 |
| Puffers Pond | Low | Satisfactory | 10 | Recreation | 1810 |
| Upper | Low | Poor | 10 | Hydroelectric | 1900 |
| Eskutassis Pond | Low | Poor | 10 | Other | 1860 |
| Dwinal Pond | Low | Not Rated | 10 | Recreation | 1947 |
| Stone Dam - Dike 3 | Low | Satisfactory | 10 | Hydroelectric | 1900 |
| Stone Dam - Dike 1 | Low | Satisfactory | 10 | Hydroelectric | 1900 |
| Stone Dam - Dike 2 | Low | Satisfactory | 10 | Hydroelectric | 1900 |
| Upper Stetson Stream | Low | Not Rated | 10 | Recreation | 1853 |
| Stone Dam - Dike 7 | Low | Satisfactory | 9 | Hydroelectric | 1900 |
| Stone Dam - Dike 4 | Low | Satisfactory | 9 | Hydroelectric | 1900 |
| Stone Dam - Dike 6 | Low | Satisfactory | 9 | Hydroelectric | 1900 |
| Stone Dam - Dike 5 | Low | Satisfactory | 9 | Hydroelectric | 1900 |
| Eddington-holbrook | Low | Not Rated | 8 | Recreation | 1802 |
| Garland Pond Dike | Low | Poor | 8 | Recreation | 1905 |
| Sawtelle Deadwater | Low | Not Rated | 8 | Hydroelectric | 1880 |
| Great Works Stream | Low | Not Rated | 8 | Other | 1963 |
| Gilman Falls | Low | Satisfactory | 8 | Hydroelectric | 1906 |
| Pushaw Lake | Low | Not Rated | 8 | Other | 1920 |
| Leonards Mill | Low | Not Rated | 7 | Hydroelectric | 1796 |