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 601–616 of 616
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Whitin Pond Dam Worcester County | 14 | 1900 | Significant | Poor |
| Whitmore Pond Dam Franklin County | 16 | 1967 | Significant | Poor |
| Whitney Pond Dam Worcester County | 18 | — | Significant | Poor |
| Wildwood Lake Dam Worcester County | 23 | 1963 | Significant | Fair |
| Willow Mill Dam Berkshire County | 24 | 1872 | Significant | Satisfactory |
| Wilson Corne Mill Dam Middlesex County | 12 | 1675 | Significant | Satisfactory |
| Windle Pond Dam Worcester County | 10 | — | Significant | Poor |
| Winnetuxet Road Pond Dam Plymouth County | 12 | — | Significant | Fair |
| Woodbury Pond Dam Worcester County | 20 | 1900 | Significant | Poor |
| Woods Pond Dam Plymouth County | 7 | — | Significant | Fair |
| Woods Pond Dam Berkshire County | 18 | 1989 | Significant | Satisfactory |
| Woodwards Mill Dam Middlesex County | 15 | — | Significant | Satisfactory |
| Worcester Diversion Levee System Worcester County | 20 | 1960 | Significant | Satisfactory |
| Yokum Pond Dam Berkshire County | 9 | — | Significant | Poor |
| York Lake Dam Berkshire County | 23 | 1934 | Significant | Poor |
| Zero Manufacturing Company Dam Hampden County | 18 | — | Significant | Fair |
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.