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 1176–1200 of 1,291
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Breeds Pond Dike No. 12 Essex County | 12 | 1914 | High | Fair |
| Breeds Pond Dike No. 11 Essex County | 12 | 1914 | High | Fair |
| Breeds Pond Dike No. 10 Essex County | 5 | 1914 | High | Fair |
| Breckwood Pond Dam Hampden County | 20 | 1934 | Significant | Poor |
| Brass Mill Pond Dam Hampshire County | 20 | — | Low | Poor |
| Braintree Dam Norfolk County | 37 | 1888 | High | Fair |
| Brackett Pond Dam No. 1 and No. 2 Essex County | 13 | 1930 | Significant | Poor |
| Boys & Girls Camp No. 3 Dam Plymouth County | 9 | — | Significant | Satisfactory |
| Boys & Girls Camp No. 1 Dam Plymouth County | 16 | — | Significant | Satisfactory |
| Box Pond Dam Norfolk County | 10 | 1800 | Low | Unsatisfactory |
| Bowen'S Pond Dam Franklin County | 10 | — | Low | Poor |
| Bourn Hadley Pond Dam Worcester County | 9 | 1940 | Low | Poor |
| Bound Brook Pond Dam Plymouth County | 7 | 1969 | Low | Fair |
| Bound Brook Dam Norfolk County | 11 | 1999 | Significant | Satisfactory |
| Boulder Hill Pond Dam Hampden County | 16 | — | Significant | Satisfactory |
| Borderland State Park Dam No. 2 Norfolk County | 14 | 1940 | Low | Unsatisfactory |
| Borden Brook Reservoir Dam Hampden County | 77 | 1909 | High | Satisfactory |
| Bondsville Upper Dam Hampshire County | 22 | 1880 | Significant | Satisfactory |
| Bondsville Lower Dam Hampshire County | 17 | 1975 | Significant | Fair |
| Bolivar Pond Dam Norfolk County | 13 | 2006 | Significant | Satisfactory |
| Bog Pond Dam Berkshire County | 14 | 1937 | Low | Fair |
| Bogastow Pond Dam Norfolk County | 13 | 1900 | Low | Poor |
| Blue Hills Reservoir Dam Norfolk County | 36 | 1950 | High | Satisfactory |
| Bloods Pond Dam Middlesex County | 12 | — | Significant | Fair |
| Blood Pond Dam Plymouth County | 11 | 1930 | Significant | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.