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 626–650 of 936
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Gravel Pit Pond Dam Fairfield County | 1 | — | Significant | Not Rated |
| Grannis Pond Dam Hartford County | 9 | — | Significant | Satisfactory |
| Graniss Pond Dam New Haven County | 6 | 1900 | Significant | Not Rated |
| Goulds Pond Dam New Haven County | 10 | — | Significant | Not Rated |
| Gould Manor Park Dam Fairfield County | 8 | — | Significant | Not Rated |
| Gorton Pond Dam New London County | 8 | 1860 | Significant | Fair |
| Goodwin Pond Dam Litchfield County | 21 | — | Significant | Poor |
| Goodman Upper Pond Dam New Haven County | 6 | — | Significant | Not Rated |
| Godfrey Pond Dam Fairfield County | 11 | 1783 | Significant | Fair |
| Globe Hollow Reservoir Dam Hartford County | 40 | 1906 | Significant | Fair |
| Glenville Pond Dam Tolland County | 19 | 1842 | Significant | Fair |
| G J Keefe Dam Litchfield County | 3 | — | Significant | Not Rated |
| Gills Pond Dam Hartford County | 17 | — | Significant | Not Rated |
| Gillette Castle Goldfish Pond Dam Middlesex County | 4 | — | Significant | Not Rated |
| Gillette Castle Dam Middlesex County | 4 | — | Significant | Poor |
| Gillette Castle Bridge Pond Dam Middlesex County | 5 | — | Significant | Not Rated |
| Geo Pond Dam Hartford County | — | — | Significant | Not Rated |
| Gaylord Pond Dam Litchfield County | 12 | 1900 | Significant | Satisfactory |
| Gay City Pond Dam Tolland County | 10 | — | Significant | Satisfactory |
| Gay Cemetery Pond Dam New London County | 19 | 1920 | Significant | Poor |
| Gates Pond Middlesex County | — | — | Significant | Not Rated |
| Gasek Farms Detention Basin Tolland County | — | 2002 | Significant | Not Rated |
| Gardner Lake Dam New London County | 10 | 1900 | Significant | Satisfactory |
| Gallup Pond Dam New London County | 11 | 1910 | Significant | Fair |
| Gale Pond Dam Hartford County | 10 | 1930 | Significant | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.