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 1076–1100 of 1,871
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Jennings Pond Dam Tompkins County | 17 | 1986 | High | Fair |
| Jeffrey Kramer Pond Dam Chenango County | 24 | 1981 | Low | Not Rated |
| Jayne Desisti Wildlife Dam Tioga County | 8 | 1958 | Low | Not Rated |
| Jaquins Pond Dam Chautauqua County | 8 | 1958 | Low | Not Rated |
| Jamesville Water District Dam Onondaga County | 35 | 1927 | Low | Not Rated |
| Jamesville Reservoir Dam Onondaga County | 53 | 1874 | High | Poor |
| James Vance Wildlife Dam Chenango County | 13 | 1972 | Significant | Not Rated |
| James Traver Wildlife Marsh Dam Dutchess County | 7 | 1952 | Low | Not Rated |
| James Thompson Rensselaer County | 19 | 1927 | Low | Satisfactory |
| James Hughey Dam Cattaraugus County | 10 | 1964 | Low | Not Rated |
| Jacob Miller Pond Dam Sullivan County | 8 | 1988 | Low | Not Rated |
| Jackson Summit Reservoir Dam Fulton County | 27 | 1934 | High | Satisfactory |
| Jackson Pond Dam Chenango County | 15 | 1941 | Significant | Satisfactory |
| Jack's Holding On Hill Pond 5 Dam Dutchess County | 20 | 2016 | Low | Not Rated |
| Ivars Pauksis Dam Delaware County | 17 | 1976 | Low | Not Rated |
| I Scott Watkins Dam Ulster County | 10 | 1983 | Low | Not Rated |
| Ischua Creek Watershed Dam #6a Cattaraugus County | 63 | 1971 | High | Satisfactory |
| Ischua Creek Watershed Dam #5 Cattaraugus County | 54 | 1961 | High | Satisfactory |
| Ischua Creek Watershed Dam #4 Cattaraugus County | 51 | 1961 | High | Satisfactory |
| Ischua Creek Watershed Dam #3 Cattaraugus County | 38 | 1966 | Significant | Satisfactory |
| Ischua Creek Watershed Dam #2 Cattaraugus County | 42 | 1961 | High | Satisfactory |
| Ischua Creek Watershed Dam #1 Cattaraugus County | 27 | 1964 | High | Satisfactory |
| Irvington Water Works Dam Westchester County | 20 | 1900 | High | Satisfactory |
| Iroquois National Refuge Dam Site #7 Orleans County | 11 | 1967 | Low | Not Rated |
| Iroquois National Refuge Dam Site #6 Orleans County | 7 | 1966 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.