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 319
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Bird Pond Dam Norfolk County | 19 | 1800 | High | Poor |
| Black Brook Pl-566 Flood Control Dam Hampden County | 60 | 1971 | High | Satisfactory |
| Blue Hills Reservoir Dam Norfolk County | 36 | 1950 | High | Satisfactory |
| Borden Brook Reservoir Dam Hampden County | 77 | 1909 | High | Satisfactory |
| 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 |
| Brick City Mill Pond Dam Worcester County | 23 | — | High | Unsatisfactory |
| Brierly Pond Dike Worcester County | 8 | — | High | Poor |
| Brookline Reservoir Dam Norfolk County | 19 | 1848 | High | Satisfactory |
| Buckley Dunton Lake Dam Berkshire County | 22 | 1965 | High | Satisfactory |
| Buffumville Dam Worcester County | 66 | 1958 | High | Not Available |
| Cambridge Reservoir Dam Middlesex County | 31 | 1897 | High | Satisfactory |
| Centennial Dam Norfolk County | 23 | — | High | Fair |
| Central Street Dam Middlesex County | 34 | 1659 | High | Fair |
| Charles River Dam At South Natick Middlesex County | 14 | — | High | Poor |
| Chartley Pond Dam Bristol County | 12 | 1696 | High | Fair |
| Cherry Valley Dam Hampden County | 41 | 1877 | High | Fair |
| Chestnut Hill Reservoir Dam Suffolk County | 19 | 1870 | High | Satisfactory |
| Chicopee Reservoir Dam Hampden County | 47 | 1927 | High | Fair |
| Chimney Pond Dam Worcester County | 18 | — | High | Unsatisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.