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 926–950 of 1,291
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Red Brook Road Dam Barnstable County | 8 | 1930 | Significant | Poor |
| Red Dam Worcester County | 15 | — | High | Satisfactory |
| Red Dam Norfolk County | 10 | 1920 | Significant | Poor |
| Reed Mill Pond Dam Plymouth County | 10 | — | Significant | Fair |
| Reservoir No. 4 Dam Worcester County | 30 | 1965 | Significant | Satisfactory |
| Reservoir No. 5 Dam Worcester County | 31 | 1900 | Low | Satisfactory |
| Reservoir No. 6 Dam Worcester County | 16 | 1905 | Low | Fair |
| Reservoir Pond Dam Norfolk County | 11 | — | Significant | Satisfactory |
| Revere Street Dam Norfolk County | 12 | 1774 | Significant | Satisfactory |
| Rice City Pond Dam Worcester County | 25 | 1880 | High | Fair |
| Riceville Pond Dam Worcester County | 13 | 1950 | Low | Fair |
| Richard Clapp Dam Franklin County | 11 | 1955 | Significant | Fair |
| Richards Reservoir Upper Dam Franklin County | 9 | — | Low | Fair |
| Richmond Pond Dam Berkshire County | 14 | — | Significant | Poor |
| Ridgely Pond Dam Worcester County | 12 | — | Significant | Fair |
| Riiska Brook Dam Berkshire County | 19 | 1952 | High | Poor |
| Riley Pond Dam Worcester County | 8 | — | Significant | Fair |
| Rising Paper Company Dam Berkshire County | 38 | — | Significant | Satisfactory |
| Riverdale Mills Worcester County | 10 | 1957 | Low | Satisfactory |
| Rivulet Village Pond Dam Worcester County | 16 | — | High | Fair |
| Roberts Meadow Lower Reservoir Dam Hampshire County | 23 | 1875 | High | Fair |
| Robin Hood Lake Dam Berkshire County | 17 | 2013 | Significant | Satisfactory |
| Robinson Pond Dam Bristol County | 12 | 1999 | Significant | Fair |
| Robinson Pond Dam Worcester County | 15 | 1838 | Significant | Poor |
| Rochdale Pond Dam Worcester County | 20 | — | High | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.