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 176–200 of 288
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Heywood Reservoir Dam Worcester County | 28 | 1926 | Significant | Poor |
| Hewitt Pond Dam Bristol County | 7 | — | Low | Poor |
| Heald Pond Dam Middlesex County | 8 | 1900 | Low | Poor |
| Hayes Pond Dam Worcester County | 12 | — | Significant | Poor |
| Hayden Pond Dam Plymouth County | 12 | 1900 | Low | Poor |
| Haskins Pond Dam Franklin County | 15 | 1820 | Significant | Poor |
| Haskell Pond Dam Essex County | 43 | 1903 | High | Poor |
| Hardwick Pond Dam Hampshire County | 8 | — | Significant | Poor |
| Harding Pond Dam Plymouth County | 9 | — | Significant | Poor |
| Hales Pond Dam Norfolk County | 20 | — | Low | Poor |
| Grist Mill Dam Middlesex County | 10 | — | Low | Poor |
| Greenes Pond Dam Worcester County | 13 | 1925 | Significant | Poor |
| Gore Pond Dam Worcester County | 6 | — | Significant | Poor |
| Goodfellow Pond Dam Worcester County | 24 | 1920 | Low | Poor |
| Glue Factory Pond West Dam Norfolk County | 10 | — | Significant | Poor |
| Gleason Pond Dam Berkshire County | 10 | 1890 | Low | Poor |
| Gilder Pond Dam Berkshire County | 17 | 1960 | Low | Poor |
| George Street Pond Dam Norfolk County | 15 | — | Significant | Poor |
| Garnet Lake Dam Berkshire County | 14 | 1964 | Low | Poor |
| French Pond Dam Bristol County | 12 | 1760 | Significant | Poor |
| Freeman Bog Dam Plymouth County | 12 | 1900 | Low | Poor |
| Framingham Reservoir No. 2 Dam Middlesex County | 27 | 1878 | High | Poor |
| Fort Meadow Reservoir Dam Middlesex County | 26 | 1848 | High | Poor |
| Forge Pond Dike Hampshire County | 11 | 1978 | Significant | Poor |
| Forge Pond Dam Hampshire County | 14 | — | Significant | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.