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 301–325 of 1,871
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Spruce Lake Dam Westchester County | 20 | — | Low | Not Rated |
| Spruce Lake Dam Herkimer County | 18 | 1897 | Significant | Poor |
| Springville Dam Erie County | 40 | 1922 | High | Fair |
| Spring Marsh Dam Orleans County | 8 | 1969 | Low | Not Rated |
| Spring Lake Dam Westchester County | 20 | 1895 | Significant | Poor |
| Spring Lake Dam Delaware County | 8 | 1920 | Low | Not Rated |
| Spillway E-2 Bypass Dam Saratoga County | 15 | 1918 | High | Satisfactory |
| Spier Falls Warren County | 146 | 1903 | High | Satisfactory |
| Sphagnum Pond Dam Orange County | 15 | 1930 | Significant | Poor |
| Spencers Lake Dam Tioga County | 30 | 1977 | Significant | Poor |
| Spencerport Waste Weir Dam Monroe County | 17 | 1918 | High | Not Rated |
| Spencer Lake Dam Tioga County | 7 | 1908 | Low | Not Rated |
| Speery & Stramba Wildlife Dam Cortland County | 14 | 1956 | Low | Not Rated |
| Sparkle Lake Dam Westchester County | 10 | 1940 | High | Satisfactory |
| South Wind Lake Dam Sullivan County | 8 | 1960 | Low | Not Rated |
| South Westchester Detention Basin Dam Westchester County | 7 | 1978 | Significant | Poor |
| South Side Dam Otsego County | 10 | 1907 | Low | Not Rated |
| South Pond Dam Nassau County | 13 | 1903 | Low | Not Rated |
| South Lake Dam (Upper) Putnam County | 12 | 1921 | Significant | Poor |
| South Lake Dam (Middle) Putnam County | 12 | 1921 | Significant | Poor |
| South Lake Dam (Lower) Putnam County | 12 | 1921 | Significant | Poor |
| South Lake Dam Greene County | 15 | 1973 | Significant | Not Rated |
| South Lake Dam Herkimer County | 30 | 1901 | Low | Not Rated |
| South Hill Pond Dam Tompkins County | 20 | — | Significant | Satisfactory |
| Southern Hills Detention Pond Dam Monroe County | 14 | 1988 | Significant | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.