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 251–275 of 288
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Upper Sibley Pond Dam Worcester County | 12 | — | Significant | Poor |
| Upper Tucker Pond East Dam Worcester County | 16 | — | Significant | Poor |
| Upper Tucker Pond South Dam Worcester County | 22 | — | Significant | Poor |
| Upper Van Horn Reservoir Dam Hampden County | 31 | 1848 | Significant | Poor |
| Victory Lane Dam Middlesex County | 16 | — | Significant | Poor |
| Vinica Pond Dam Hampden County | 13 | — | Low | Poor |
| Waite Pond Dam Worcester County | 11 | — | Significant | Poor |
| Walker Pond Dam Worcester County | 10 | 1957 | Low | Poor |
| Wallace Pond Dam Worcester County | 11 | — | Significant | Poor |
| Wallis Pond Dam Worcester County | 16 | — | Low | Poor |
| Warren Reservoir Dam Bristol County | 13 | 1883 | Low | Poor |
| Waseeka Sanctuary Dam Middlesex County | 12 | 1965 | Low | Poor |
| Watson Pond Dam Berkshire County | 10 | — | Low | Poor |
| Weld Pond Dam Norfolk County | 15 | 1870 | High | Poor |
| West Medway Dam Norfolk County | 11 | 1850 | Low | Poor |
| Weston'S Dam Middlesex County | 15 | 1970 | Low | Poor |
| West Parish Filter No. 2 Dam Hampden County | 30 | 1910 | Significant | Poor |
| West River Pond Dam Worcester County | 15 | 1920 | Significant | Poor |
| Wetmore Pond Dam Worcester County | 16 | — | Significant | Poor |
| Wetstone Tobacco Company No. 3 Dam Hampden County | 7 | 1955 | Low | Poor |
| Wheelwright Pond Dam Worcester County | 17 | — | Low | Poor |
| Whitehall Pond Dam Worcester County | 22 | — | Significant | Poor |
| Whitehall Upper Pond Dam Middlesex County | 10 | — | Significant | Poor |
| White Island Pond Dam Plymouth County | 11 | — | Significant | Poor |
| Whitin Pond Dam Worcester County | 14 | 1900 | Significant | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.