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 1626–1650 of 1,871
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Swinging Bridge Sullivan County | 135 | 1930 | High | Fair |
| Taconic Acres INC Rec Pond Dam Columbia County | 17 | 1971 | Low | Not Rated |
| Talcville St. Lawrence County | 13 | 1987 | Low | Satisfactory |
| Tamarack Pond Dam Orange County | 12 | — | Significant | Poor |
| Tamarack Swamp Dam Dutchess County | 14 | 1959 | Low | Not Rated |
| Tanglewood Lake Dam Delaware County | — | 1980 | Significant | Poor |
| Tank Pond Dam Chenango County | 9 | — | Low | Not Rated |
| Tannenbaum Reservoir Dam Cattaraugus County | 31 | 2006 | High | Satisfactory |
| 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 |
| Tarrytown Waterworks Dam Westchester County | 18 | 1897 | High | Poor |
| Taylor Pond Dam Clinton County | 31 | 1924 | High | Satisfactory |
| Taylorville - North Dam Lewis County | 24 | 1914 | Significant | Satisfactory |
| T Bertram Anderson Dam Delaware County | 16 | 1973 | Low | Not Rated |
| Teatown Lake Dam Westchester County | 10 | 1928 | Significant | Poor |
| Teelins Pond Dam Oneida County | 30 | 1917 | Low | Not Rated |
| Ten Mile River Boy Scout Camp Dam Sullivan County | 9 | — | Undetermined | Not Rated |
| Tennanah Lake Dam Sullivan County | 17 | 1914 | Significant | Not Rated |
| Texaco Research Center Dam Dutchess County | 22 | 1860 | High | Satisfactory |
| Texas Hollow Wildlife Marsh Dam Schuyler County | 9 | 1962 | Low | Not Rated |
| Thendara Dam Herkimer County | 12 | 1980 | Low | Not Rated |
| Theresa Jefferson County | 40 | 1929 | Low | Satisfactory |
| Third Reservoir Spillway and Dam Rockland County | 25 | 1946 | Significant | Poor |
| Thomas J Kelaher Dam Delaware County | 16 | 1961 | Significant | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.