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 351–375 of 419
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Sodom Dam Putnam County | 78 | 1892 | High | Satisfactory |
| South Colton St. Lawrence County | 42 | 1954 | High | Satisfactory |
| Sparkle Lake Dam Westchester County | 10 | 1940 | High | Satisfactory |
| Spencerport Waste Weir Dam Monroe County | 17 | 1918 | High | Not Rated |
| Spier Falls Warren County | 146 | 1903 | High | Satisfactory |
| Spillway E-2 Bypass Dam Saratoga County | 15 | 1918 | High | Satisfactory |
| Springville Dam Erie County | 40 | 1922 | High | Fair |
| Sterling Forest Lake Dam Orange County | 30 | 1953 | High | Satisfactory |
| Stewarts Bridge Saratoga County | 113 | 1952 | High | Satisfactory |
| Still Lake Dam Westchester County | 16 | 1930 | High | Poor |
| Stillwater - North Dam Herkimer County | 55 | 1924 | High | Satisfactory |
| Stillwell Orange County | 62 | 1948 | High | Unsatisfactory |
| St Josephs Lake Dam Sullivan County | 22 | 1905 | High | Satisfactory |
| Stump Pond Dam Cortland County | 15 | 1928 | High | Poor |
| Sturgeon Pool Dam Ulster County | 109 | 1922 | High | Satisfactory |
| Summit Street Lake Dam Columbia County | 28 | 1914 | High | Satisfactory |
| Swan Lake Dam Westchester County | 34 | 1933 | High | Poor |
| Swinging Bridge Sullivan County | 135 | 1930 | High | Fair |
| Tannenbaum Reservoir Dam Cattaraugus County | 31 | 2006 | High | Satisfactory |
| Tarrytown Waterworks Dam Westchester County | 18 | 1897 | High | Poor |
| Taylor Pond Dam Clinton County | 31 | 1924 | High | Satisfactory |
| Texaco Research Center Dam Dutchess County | 22 | 1860 | High | Satisfactory |
| Thorne Dam Dutchess County | 38 | 1905 | High | Fair |
| Tillson Lake Dam Ulster County | 39 | 1930 | High | Poor |
| Titicus Dam Westchester County | 109 | 1895 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.