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 401–425 of 1,291
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Gaston Pond Dam Worcester County | 14 | 1915 | Significant | Unsatisfactory |
| Gates Pond Dam Worcester County | 21 | 1915 | Low | Fair |
| Gauco Pond Dam Worcester County | 28 | 1975 | Low | Unsatisfactory |
| Gavins Pond Dam Norfolk County | 10 | — | Significant | Fair |
| George H. Nichols Multipurpose Dam Worcester County | 20 | 1969 | High | Satisfactory |
| George Street Pond Dam Norfolk County | 15 | — | Significant | Poor |
| Gilboa Pond Dam Worcester County | 14 | — | Low | Satisfactory |
| Gilder Pond Dam Berkshire County | 17 | 1960 | Low | Poor |
| Gleason Pond Dam Berkshire County | 10 | 1890 | Low | Poor |
| Glen Charles Pond Dam Plymouth County | 19 | — | Significant | Satisfactory |
| Glendale Berkshire County | 30 | 1906 | Low | Satisfactory |
| Glen Echo Lake Dam Worcester County | 30 | 1956 | High | Satisfactory |
| Glue Factory Pond West Dam Norfolk County | 10 | — | Significant | Poor |
| Golden Field Pond Dam Plymouth County | 8 | 1900 | Low | Not Rated |
| Goldthwaite Brook Dam No. 1 Essex County | 8 | — | Low | Fair |
| Goldthwaite Brook Dam No. 2 Essex County | 8 | — | Low | Fair |
| Goodfellow Pond Dam Worcester County | 24 | 1920 | Low | Poor |
| Goose Cove North Dam Essex County | 35 | 1963 | High | Fair |
| Goose Cove Northwest Dike Essex County | 44 | 1963 | High | Fair |
| Goose Cove Reservoir South Dam Essex County | 17 | 1963 | High | Fair |
| Goose Cove Southwest Dike Essex County | 9 | 1963 | High | Fair |
| Goose Pond Dam Berkshire County | 28 | 1840 | High | Satisfactory |
| Gore Pond Dam Worcester County | 6 | — | Significant | Poor |
| Government Mill Dam Berkshire County | 22 | 1901 | Significant | Satisfactory |
| Grandin Reservoir Dam Franklin County | 37 | 1935 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.