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 951–975 of 1,291
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Rockwell Pond Dam Worcester County | 20 | 1900 | High | Fair |
| Rocky Hill Pond Dam Hampshire County | 26 | 1924 | Low | Poor |
| Rocky Pond Road Dam Worcester County | 7 | 1950 | Low | Poor |
| Rood Hill Road Ponds Dam Berkshire County | 9 | — | High | Not Rated |
| Rose Brook Lower Dam Plymouth County | 15 | 1930 | Significant | Fair |
| Rosemary Lake Dam Norfolk County | 12 | 1830 | High | Satisfactory |
| Round Meadow Pond Dam Worcester County | 11 | 1951 | Significant | Fair |
| Round Pond Dam Berkshire County | 19 | 1963 | Low | Satisfactory |
| Route 25 No. 1 Dam Plymouth County | 16 | 1964 | High | Satisfactory |
| Route One Pond West Dam Norfolk County | 11 | — | Low | Unsatisfactory |
| Rudd Pond Dam and Dike Berkshire County | 12 | 1920 | Low | Satisfactory |
| Ruggles Pond Dam Franklin County | 9 | 2007 | Significant | Fair |
| Rumford River Dam Bristol County | 9 | — | Significant | Fair |
| Russell Hampden County | 30 | 1905 | Low | Satisfactory |
| Russell Harrington Mill Pond Dam Worcester County | 20 | 1917 | Significant | Satisfactory |
| Russell Mill Pond Plymouth County | 25 | 1898 | Low | Satisfactory |
| Russell Mill Pond Dam Middlesex County | 18 | 1954 | Significant | Satisfactory |
| Russell Pond Dam Plymouth County | 10 | — | Significant | Satisfactory |
| Russell Pond Dam Plymouth County | 16 | — | High | Unsatisfactory |
| Russell Pond Dam Hampden County | 10 | — | Significant | Fair |
| Russells Mill Pond Dam Bristol County | 8 | — | Significant | Fair |
| Sabrina Lake North Dam Norfolk County | 6 | — | Significant | Not Rated |
| Sabrina Lake South Dam Norfolk County | 7 | — | Significant | Fair |
| Sabrina Lake West Dike Norfolk County | 12 | 1870 | High | Unsatisfactory |
| Saint Yues Bog Dam Plymouth County | 8 | 1941 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.