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 126–150 of 288
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Jones Pond Dam Worcester County | 11 | 1930 | Low | Poor |
| Kelleher Dam Plymouth County | 15 | 1945 | Low | Poor |
| Kings Pond Dam Bristol County | 13 | 1871 | Significant | Poor |
| Lake Boon Dam Middlesex County | 10 | 1847 | Significant | Poor |
| Lake Holbrook Dam Norfolk County | 10 | 1920 | Significant | Poor |
| Lake Mattawa North Dam Franklin County | 15 | 1893 | Significant | Poor |
| Lake Mattawa South Dam Franklin County | 10 | 1893 | Significant | Poor |
| Lake Noquochoke Upper Dam Bristol County | 11 | — | Low | Poor |
| Lake Noquochoke Upper Dike Bristol County | 8 | — | Low | Poor |
| Little Galilee Pond Dam Hampshire County | 15 | — | Low | Poor |
| Longmeadow Country Club Dam Hampden County | 18 | 1890 | Significant | Poor |
| Lower Artichoke Reservoir Dam Essex County | 10 | 1920 | Low | Poor |
| Lower Bemis Pond Dam Hampden County | 33 | 1862 | Significant | Poor |
| Lower Gore Pond Dam Worcester County | 20 | — | Significant | Poor |
| Lower Sibley Pond Dam Worcester County | 14 | — | Significant | Poor |
| Lower Spectacle Pond Dam Berkshire County | 11 | — | Low | Poor |
| Lumbert Pond Dam Barnstable County | 11 | — | Significant | Poor |
| Main Street Dam Middlesex County | 18 | 1882 | High | Poor |
| Manchester Pond Reservoir East Dike Bristol County | 12 | 1963 | High | Poor |
| Manchester Pond Reservoir South Dike Bristol County | 16 | 1963 | High | Poor |
| Mashpee River Fishway Dam Barnstable County | 12 | — | Significant | Poor |
| Mason Road Dam Middlesex County | 11 | 1870 | Low | Poor |
| Mckinstry Pond Dam Worcester County | 7 | — | Significant | Poor |
| Mcleod Pond Dam Franklin County | 11 | — | Low | Poor |
| Mechanics Pond Dike Bristol County | 10 | 1997 | Significant | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.