New York Dams
1,871 dams tracked by the National Inventory of Dams
Total Dams
1,871
High Hazard
419
22.4%
Poor / Unsatisfactory
289
Average Age
89 yrs
Hazard Classification
High419 (22.4%)
Significant544 (29.1%)
Low901 (48.2%)
Condition Assessment
Satisfactory348 (18.6%)
Fair98 (5.2%)
Poor / Unsatisfactory289 (15.4%)
Not Rated1,136 (60.7%)
Federal
26
State
281
Local
506
Private
785
Tallest Dams
- Mount Morris Dam249 ft
- Ashokan Dam213 ft
- Downsville Dam204 ft
- Merriman Dam195 ft
- Neversink Reservoir Dam190 ft
High Hazard Dams
- Mount Morris DamHigh
- Ashokan DamHigh
- Downsville DamHigh
- Merriman DamHigh
- Neversink Reservoir DamHigh
Poor Condition Dams
- Inghams DamPoor
- Toronto Unsatisfactory
- Mill Brook Site 2 DamPoor
- Sidney Reservoir #5 DamPoor
- 60 Foot DamPoor
All Dams in New York
Showing 1426–1450 of 1,871
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Doyle Wildlife Pond Dam Essex County | 20 | 1969 | Low | Not Rated |
| Downsville Dam Delaware County | 204 | 1954 | High | Satisfactory |
| Dover Greens Dam Dutchess County | 60 | 1918 | High | Fair |
| Doubletree Subdivision Dam Onondaga County | 28 | 1991 | Significant | Poor |
| Dormans Pond Dam Orange County | 9 | 1912 | Significant | Not Rated |
| Doodletown Dam Rockland County | 34 | 1976 | Significant | Poor |
| Dolph Pond Dam Washington County | 12 | 1934 | Low | Not Rated |
| Dolgeville Herkimer County | 20 | 1897 | Low | Satisfactory |
| D Mill At Ticonderoga Dam Essex County | 20 | 1981 | Significant | Not Rated |
| Dixie Lake Dam Sullivan County | 10 | 1930 | Low | Not Rated |
| Diverting Reservoir Dam Putnam County | 54 | 1911 | High | Satisfactory |
| Dippikill Pond Dam Warren County | 11 | 1991 | Low | Not Rated |
| Dieterich Dam #3 Dutchess County | 14 | 1910 | Significant | Not Rated |
| Dieterich Dam #2 Dutchess County | 14 | 1910 | Significant | Poor |
| Dieterich Dam #1 Dutchess County | 23 | 1900 | Significant | Poor |
| Dickinson Dam Franklin County | 20 | — | Low | Not Rated |
| Dickerson Pond Dam Westchester County | 15 | 1922 | Significant | Poor |
| Diamond Mills Paper Company Dam Ulster County | 35 | 1929 | High | Satisfactory |
| Diamond Lake Dam Orange County | 11 | 1956 | Low | Not Rated |
| Diamond Island Diversion Dam Jefferson County | 13 | 1914 | Low | Not Rated |
| Diachishin Lake Dam Ulster County | 25 | 1962 | Low | Not Rated |
| Dexter South Channel Dam Jefferson County | 22 | 1925 | Low | Satisfactory |
| Dexter North Channel Dam Jefferson County | 14 | 1925 | Low | Fair |
| Dexter Middle Channel Dam Jefferson County | 18 | 1925 | Low | Satisfactory |
| Dewey Blackwell Recreation Pond Dam Otsego County | 11 | 1967 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.