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 276–288 of 288
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Bates Power Reservoir Dam Worcester County | 9 | 1846 | Significant | Poor |
| Barrowsville Pond Dam Bristol County | 14 | 1920 | Significant | Poor |
| Barre Reservoir Dam & Dike Worcester County | 15 | — | High | Poor |
| Baldwin Water Supply Dam Worcester County | 9 | — | Significant | Poor |
| Balch Pond Dike Middlesex County | 3 | — | Significant | Poor |
| Balch Pond Dam Middlesex County | 12 | — | Significant | Poor |
| Bailey Pond Dam Essex County | 15 | 1912 | Significant | Poor |
| Assawompset Pond Dam Plymouth County | 7 | 1894 | Low | Poor |
| Assabet River Dam Middlesex County | 15 | 1924 | Low | Poor |
| Artichoke River Dam Essex County | 15 | 1950 | Low | Poor |
| Arnold Pond Dam Worcester County | 14 | 1900 | Low | Poor |
| Arnold Dam Berkshire County | 21 | 1954 | Significant | Poor |
| Adams Pond Dam Worcester County | 8 | 2014 | Significant | Poor |
PreviousPage 12 of 12
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.