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 451–475 of 544
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Stephen Blodgett Pond Dam Dutchess County | 17 | 1953 | Significant | Poor |
| Stewarts Landing Dam Fulton County | 40 | 1923 | Significant | Not Rated |
| Stony Point Dam Rockland County | 16 | 1900 | Significant | Not Rated |
| Stump Pond Dam Sullivan County | 6 | 1888 | Significant | Not Rated |
| Stuts Dam Orange County | 10 | — | Significant | Not Rated |
| Stuyvesant Falls Columbia County | 13 | 1900 | Significant | Satisfactory |
| Sullivan Park Detention Dam Steuben County | 16 | 1982 | Significant | Not Rated |
| Summit Lake Dam Schoharie County | 14 | 1920 | Significant | Not Rated |
| Summit Lake Dam and Dike Westchester County | 15 | 1992 | Significant | Poor |
| Sunrise Lake Dam Sullivan County | 26 | 1965 | Significant | Not Rated |
| Sunset Saddle Dam Cattaraugus County | 20 | — | Significant | Not Rated |
| Swan Lake Dam Sullivan County | 31 | 1894 | Significant | Fair |
| Tamarack Pond Dam Orange County | 12 | — | Significant | Poor |
| Tanglewood Lake Dam Delaware County | — | 1980 | Significant | Poor |
| Tannersville Reservoir #3 Dam Greene County | 17 | 1957 | Significant | Poor |
| Tannery - Dam "A" Jefferson County | 14 | 1914 | Significant | Satisfactory |
| Tanzman Lake Dam Sullivan County | 17 | 1950 | Significant | Not Rated |
| Taylorville - North Dam Lewis County | 24 | 1914 | Significant | Satisfactory |
| Teatown Lake Dam Westchester County | 10 | 1928 | Significant | Poor |
| Tennanah Lake Dam Sullivan County | 17 | 1914 | Significant | Not Rated |
| Third Reservoir Spillway and Dam Rockland County | 25 | 1946 | Significant | Poor |
| Thomas J Kelaher Dam Delaware County | 16 | 1961 | Significant | Satisfactory |
| Tivoli Lake Spillway Rockland County | 5 | 1908 | Significant | Not Rated |
| Tomkins Cove Dam Rockland County | 8 | 1915 | Significant | Poor |
| Town of Mt. Pleasant Water District #1 Dam Westchester County | 35 | 1915 | Significant | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.