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 226–250 of 356
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Niskayuna Pond Dam Berkshire County | 25 | — | Low | Fair |
| Norcross Pond No. 2 Dam Hampden County | 19 | — | Low | Poor |
| Norcross Pond No. 3 Dam Hampden County | 16 | — | Low | Poor |
| North Harwich Reservoir Dam Barnstable County | 8 | 1880 | Low | Fair |
| North Village Pond Worcester County | 13 | 1914 | Low | Satisfactory |
| Ocean Spray Dam Plymouth County | 13 | — | Low | Not Rated |
| Old Shepard Pond Dam Worcester County | 7 | — | Low | Fair |
| Orrs Pond Dam Bristol County | 18 | 1906 | Low | Fair |
| Ortolani No. 2 Dam Plymouth County | 13 | 1900 | Low | Not Rated |
| Ortolani Reservoir No. 3 Dam Plymouth County | 13 | 1910 | Low | Fair |
| Otter River Dam Worcester County | 10 | 1946 | Low | Poor |
| Paint Shop Pond Dam Norfolk County | 12 | 2002 | Low | Satisfactory |
| Paradise Lake Dam Hampden County | 8 | 1930 | Low | Satisfactory |
| Patrill Hollow Pond Dam Worcester County | 11 | — | Low | Unsatisfactory |
| Pelton Reservoir Dam Berkshire County | 16 | 1954 | Low | Fair |
| Peppers Mill Pond Dam Hampshire County | 7 | 1953 | Low | Fair |
| Pikes Pond Dam Worcester County | 10 | 1999 | Low | Fair |
| Pilchs No. 3 Dam Hampshire County | 15 | 1948 | Low | Fair |
| Pine Brook Dam Worcester County | 7 | 1950 | Low | Fair |
| Plimpton Pond Dam Norfolk County | 19 | 1925 | Low | Poor |
| Plow Shop Pond Dam Middlesex County | 7 | 1856 | Low | Poor |
| Pond At West Road Dam Middlesex County | 20 | — | Low | Unsatisfactory |
| Powder Mill Worcester County | 10 | 1908 | Low | Satisfactory |
| Pud'S Pond Dam Norfolk County | 12 | 1800 | Low | Poor |
| Putnam Pond Dam Worcester County | 12 | — | Low | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.