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 1526–1550 of 1,871
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Sleepy Hollow Country Club Dam Westchester County | 15 | 1965 | Significant | Not Rated |
| Sleepy Hollow Dam Greene County | 83 | 1972 | High | Satisfactory |
| Slippery Corners Dam Oswego County | 9 | 1959 | Low | Not Rated |
| Sluice Gate E-6 Parking Lot Dam Saratoga County | 33 | 1918 | High | Satisfactory |
| Sly Pond Dam Washington County | 14 | 1896 | Significant | Satisfactory |
| Smeallie Dam Montgomery County | 10 | 1974 | Significant | Poor |
| Smith Brook Lower Dam Lewis County | 8 | 1937 | Low | Not Rated |
| Smithline Wrp Dam St. Lawrence County | 11 | 1998 | Low | Not Rated |
| Smith Pond Dam Rensselaer County | 12 | 1939 | Low | Not Rated |
| Smith Pond Dam Chenango County | 11 | — | Low | Not Rated |
| Smiths Mills Reservoir Dam Chautauqua County | 19 | 1906 | Significant | Not Rated |
| Snooks Ice Pond Dam Onondaga County | 15 | 1850 | Low | Not Rated |
| Snow Bird Lake Dam Oneida County | 18 | 1967 | Low | Not Rated |
| Snow Making Pond Dam Ulster County | 36 | 1975 | Low | Not Rated |
| Sodom Dam Putnam County | 78 | 1892 | High | Satisfactory |
| Soft Maple Dike No. 3 Lewis County | 30 | 1926 | Low | Satisfactory |
| Solon Pond Dam Cortland County | 12 | 1903 | Low | Not Rated |
| South Channel Jefferson County | 12 | 1924 | Low | Satisfactory |
| South Colton St. Lawrence County | 42 | 1954 | High | Satisfactory |
| Southeast Reservoir Dam Monroe County | 25 | 1972 | Significant | Not Rated |
| South Edwards St. Lawrence County | 53 | 1914 | Significant | Satisfactory |
| Southern Hills Detention Pond Dam Monroe County | 14 | 1988 | Significant | Poor |
| South Hill Pond Dam Tompkins County | 20 | — | Significant | Satisfactory |
| South Lake Dam Herkimer County | 30 | 1901 | Low | Not Rated |
| South Lake Dam Greene County | 15 | 1973 | Significant | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.