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 1201–1225 of 1,871
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Headquarters Pond Dam Cayuga County | 10 | — | Low | Not Rated |
| Hayes Dam Otsego County | 19 | 1974 | Low | Not Rated |
| Hawkinsville Dam Oneida County | 18 | 1915 | Low | Not Rated |
| Hawkins Pond Dam Broome County | 17 | 1976 | Low | Not Rated |
| Hathaway Pond Dam Delaware County | 18 | 1800 | Low | Not Rated |
| Hatch Lake Dam Madison County | 11 | 1836 | Low | Not Rated |
| Hastings Power Dam Rensselaer County | 22 | 1920 | Significant | Poor |
| Harwood Lake Dam Cattaraugus County | 22 | 1963 | High | Not Rated |
| Harvey Pond Dam Tioga County | 22 | 2002 | Significant | Poor |
| Hartwood Club Dam Sullivan County | 8 | 1870 | Low | Not Rated |
| Hartwick Reservoir Dam Otsego County | 23 | 1924 | Significant | Poor |
| Harry Yates Farm Pond Dam Erie County | 13 | 1950 | Low | Not Rated |
| Harry Brown Wildlife Dam Madison County | 8 | 1954 | Low | Not Rated |
| Harrower Pond Dam Montgomery County | 25 | 1870 | High | Poor |
| Harrower Lower Dam Montgomery County | 8 | 1898 | Significant | Not Rated |
| Harrisville Lewis County | 25 | 1905 | Low | Satisfactory |
| Harrison Spillway Dam Wayne County | 16 | 1918 | High | Not Rated |
| Harrison Dam Orange County | 15 | — | Significant | Not Rated |
| Harrisburg Lake Dam Warren County | 10 | 1918 | Low | Not Rated |
| Harold Toppel Dam Columbia County | 17 | 1973 | Significant | Poor |
| Harold Nye Pond Dam Madison County | 28 | — | Low | Not Rated |
| Harmony Lake Dam Dutchess County | 16 | 1931 | Significant | Not Rated |
| Hannibal Dam Oswego County | 10 | 1907 | Significant | Fair |
| Hannawa St. Lawrence County | 34 | 1902 | Low | Satisfactory |
| Hanes & Bontecou Marsh Dam Dutchess County | 7 | 1956 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.