Connecticut Dams
1,225 dams tracked by the National Inventory of Dams
Total Dams
1,225
High Hazard
236
19.3%
Poor / Unsatisfactory
126
Average Age
115 yrs
Hazard Classification
High236 (19.3%)
Significant936 (76.4%)
Low53 (4.3%)
Condition Assessment
Satisfactory474 (38.7%)
Fair254 (20.7%)
Poor / Unsatisfactory126 (10.3%)
Not Rated371 (30.3%)
Federal
9
State
169
Local
254
Private
697
Tallest Dams
- Colebrook River Dam223 ft
- Mad River Flood Control Dam178 ft
- Nepaug Dam156 ft
- Shepaug 138 ft
- Saville Dam137 ft
High Hazard Dams
- Colebrook River DamHigh
- Mad River Flood Control DamHigh
- Nepaug DamHigh
- Shepaug High
- Saville DamHigh
Poor Condition Dams
All Dams in Connecticut
Showing 401–425 of 1,225
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Pine Meadows Park Pond Pond Dam New London County | 22 | 1959 | Low | Not Rated |
| Pine Acres Lake Dam Windham County | 9 | 1880 | Significant | Satisfactory |
| Pierce'S Detention Dam New Haven County | 8 | — | Significant | Fair |
| Picketts Pond Dam New Haven County | 3 | 1963 | Significant | Fair |
| Pickerel Lake Dam Middlesex County | 17 | 1870 | Significant | Poor |
| Pewter Pond Dam Litchfield County | 9 | — | Significant | Poor |
| Perry Pond Dam New London County | 5 | — | Significant | Not Rated |
| Perry Pond Dam Fairfield County | 15 | — | Significant | Fair |
| Pequabuck River Dam Litchfield County | 10 | — | Significant | Not Rated |
| Pepper Lake Dam Fairfield County | 12 | — | Significant | Not Rated |
| Pemberwick Dam Fairfield County | 44 | 1867 | High | Fair |
| Peck'S Meadow Pond Dam Middlesex County | 8 | 1880 | Significant | Fair |
| Peck Pond Dam Windham County | 16 | 1930 | Significant | Poor |
| Peck Pond Dam Litchfield County | 8 | — | Low | Not Rated |
| Peat Swamp Reservoir Dam New Haven County | 41 | 1925 | High | Poor |
| Pearson Pond Dam Middlesex County | 5 | — | Significant | Not Rated |
| Pearl Lake Dam Tolland County | 10 | — | Significant | Not Rated |
| Pattaconk Reservoir Dam Middlesex County | 23 | 1932 | High | Fair |
| Pattaconk Dam #3 Middlesex County | 13 | — | Significant | Satisfactory |
| Pataguanset Lake Dam New London County | 12 | 1942 | High | Fair |
| Partridge Hallow Dam Hartford County | 15 | — | Significant | Fair |
| Parks Pond Dam #2 Fairfield County | 11 | — | Significant | Satisfactory |
| Park Pond Dam Fairfield County | 5 | — | Significant | Not Rated |
| Park Pond Dam Litchfield County | 20 | — | High | Satisfactory |
| Parkins Pond Upper Dam Litchfield County | 4 | — | Significant | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.