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
Tallest Dams
- Cobble Mountain Reservoir Dam245 ft
- Quabbin Winsor Dam170 ft
- Littleville Dam164 ft
- Bear Swamp - North Dike 155 ft
- Knightville Dam150 ft
High Hazard Dams
Poor Condition Dams
All Dams in Massachusetts
Showing 26–50 of 464
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Berkshire Trout Pond Berkshire County | 9 | 1946 | Low | Fair |
| Bethune Pond Dam Essex County | 15 | — | Significant | Fair |
| Bickford Pond Dam Worcester County | 51 | 1971 | High | Fair |
| Birch Pond Dam Essex County | 25 | 1873 | High | Fair |
| Blackstone River Saranac Dam At Canal Street Worcester County | 13 | 1910 | Low | Fair |
| Bloods Pond Dam Middlesex County | 12 | — | Significant | Fair |
| Bog Pond Dam Berkshire County | 14 | 1937 | Low | Fair |
| Bondsville Lower Dam Hampshire County | 17 | 1975 | Significant | Fair |
| Bound Brook Pond Dam Plymouth County | 7 | 1969 | Low | Fair |
| Braintree Dam Norfolk County | 37 | 1888 | High | Fair |
| Breeds Pond Dike No. 10 Essex County | 5 | 1914 | High | Fair |
| Breeds Pond Dike No. 11 Essex County | 12 | 1914 | High | Fair |
| Breeds Pond Dike No. 12 Essex County | 12 | 1914 | High | Fair |
| Breeds Pond Dike No. 8 Essex County | 10 | 1914 | High | Fair |
| Breeds Pond Lantern Rock Dike No. 4 Essex County | 30 | 1914 | High | Fair |
| Breeds Pond Outlet Dam No. 5 Essex County | 44 | 1870 | High | Fair |
| Briggs Reservoir Dam No. 1 Plymouth County | 13 | 1917 | Low | Fair |
| Brockton Reservoir Dam Norfolk County | 17 | 1885 | Significant | Fair |
| Brookside Mill Dam Middlesex County | 16 | 1862 | Significant | Fair |
| Brooks Pond Dam Worcester County | 16 | 1939 | Low | Fair |
| Brown Pond Dam Worcester County | 16 | 1900 | Low | Fair |
| Buck Hill Conservation Dam Worcester County | 15 | 1969 | Significant | Fair |
| Bucks Pond Dam Worcester County | 10 | — | Significant | Fair |
| Bull Brook Reservoir Dam Essex County | 11 | 1988 | Low | Fair |
| Burncoat Pond Dam Worcester County | 16 | — | Significant | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.