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 626–650 of 901
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| North Pond Dam Essex County | 15 | 1913 | Low | Not Rated |
| Northumberland Dam Washington County | 16 | 1870 | Low | Not Rated |
| Northville Reservoir Dam Fulton County | 40 | 1929 | Low | Not Rated |
| Northville Water Supply Dam Hamilton County | 25 | 1940 | Low | Not Rated |
| North Woods Dam #2 Ulster County | 18 | 1984 | Low | Not Rated |
| Nunda Water Supply Dam Livingston County | 26 | 1962 | Low | Not Rated |
| Nye Farm Pond Dam Madison County | 21 | — | Low | Not Rated |
| Nys Atomic Development Dam #1 Cattaraugus County | 95 | 1963 | Low | Not Rated |
| Nys Atomic Development Dam #2 Cattaraugus County | 45 | 1963 | Low | Not Rated |
| Oakley Swamp Wildlife Pond Dam Tioga County | 8 | 1952 | Low | Not Rated |
| Oakridge Land & Property Corp Dam Westchester County | 10 | 1981 | Low | Not Rated |
| Oatka Creek Dam Genesee County | 12 | — | Low | Not Rated |
| O'Dell Marsh Dam Erie County | 7 | 1954 | Low | Not Rated |
| Old Brodhead Lake Dam Sullivan County | 33 | 2005 | Low | Not Rated |
| Old Fly Wildlife Dam Onondaga County | 9 | 1958 | Low | Not Rated |
| Oneida #7 Pond #1 Dam & Dike Oneida County | 11 | 1958 | Low | Not Rated |
| Oquaga Lake Dam Broome County | 7 | — | Low | Not Rated |
| Orchard Park Reservoir Dam Erie County | 22 | 1933 | Low | Not Rated |
| Otis Young Dam Cortland County | 14 | 1974 | Low | Not Rated |
| Otsego Lake Dam Otsego County | 11 | 1900 | Low | Not Rated |
| Otter Lake Dam Oneida County | 8 | 1880 | Low | Not Rated |
| Owego Contracting Company Dam Tioga County | 22 | 1974 | Low | Not Rated |
| Pack Forest Lake Dam Warren County | 10 | — | Low | Not Rated |
| Palmer Falls Warren County | 37 | 1913 | Low | Satisfactory |
| Palmer Lake Dam Essex County | 35 | 1920 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.