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 526–550 of 616
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Cochichewick River Dam Essex County | 13 | 1820 | Significant | Unsatisfactory |
| Cocassett Lake Dam Norfolk County | 16 | 1813 | Significant | Fair |
| Coachlace Pond Dam Worcester County | 13 | 1846 | Significant | Fair |
| Clock Tower Dam Middlesex County | 20 | 1890 | Significant | Satisfactory |
| Clark Reservoir Dam Worcester County | 16 | 1920 | Significant | Poor |
| City Mills Pond Dam Norfolk County | 19 | 1935 | Significant | Poor |
| Cheshire Reservoir Dam Berkshire County | 14 | 1870 | Significant | Fair |
| Chartpak Dam Hampshire County | 31 | — | Significant | Satisfactory |
| Chaffin Pond Dam Worcester County | 10 | 1894 | Significant | Poor |
| Center Pond Dam Berkshire County | 9 | — | Significant | Satisfactory |
| Cedar Swamp Pond Dam Worcester County | 8 | 1939 | Significant | Fair |
| Cedar Street Dam Middlesex County | 12 | — | Significant | Fair |
| Cedar Pond Dam Worcester County | 9 | 1876 | Significant | Fair |
| Cedar Meadow Pond Dam Worcester County | 15 | 1924 | Significant | Fair |
| Carver'S Pond Dam Plymouth County | 6 | — | Significant | Poor |
| Carter Pond Dam Worcester County | 9 | 1924 | Significant | Satisfactory |
| Carpenter Reservoir Dam Worcester County | 32 | 1888 | Significant | Satisfactory |
| Carpenter Pond Dam Worcester County | 8 | — | Significant | Poor |
| Carpenter Pond Dam Norfolk County | 15 | 1888 | Significant | Poor |
| Carding Mill Pond Dam Middlesex County | 17 | 1930 | Significant | Fair |
| Caprons Pond Dam, Canal and Gates Worcester County | 17 | — | Significant | Fair |
| Canoe River Campground Dam Bristol County | 10 | — | Significant | Satisfactory |
| Calkins Pond Upper Dam Hampden County | 25 | — | Significant | Fair |
| Calkins Pond Dam Hampden County | 14 | 1961 | Significant | Satisfactory |
| Cabot Pond Dam Bristol County | 9 | — | Significant | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.