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 1026–1050 of 1,871
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Lock E-16 Dam At Rocky Rift Herkimer County | 6 | 1926 | Significant | Not Rated |
| Lock E-17 Dam At Little Falls Herkimer County | 60 | 1982 | Significant | Not Rated |
| Lock E-18 Dam Herkimer Herkimer County | 6 | 1915 | Significant | Not Rated |
| Lock E-3 Spillway Bypass Dam Saratoga County | 18 | 1918 | High | Satisfactory |
| Lock E-4 Embankment Dam Saratoga County | 34 | 1915 | High | Poor |
| Lock E-5 Spillway Dam Saratoga County | 26 | 1918 | High | Satisfactory |
| Lock E8 Scotia Schenectady County | 14 | 1910 | Low | Not Rated |
| Lock E9 Rotterdam Junction Schenectady County | 15 | 1910 | Low | Not Rated |
| Long Lake Park Dam Hamilton County | 13 | 1934 | Low | Not Rated |
| Long Marsh Dam Genesee County | 11 | 1964 | Low | Not Rated |
| Long Pond Dam Westchester County | 40 | 1936 | Significant | Poor |
| Long Pond Dam Chenango County | 17 | 1900 | High | Poor |
| Long Pond Dam Oswego County | 14 | 1937 | Low | Not Rated |
| Long Pond Dam Rensselaer County | 9 | 1918 | High | Satisfactory |
| Long Sault St. Lawrence County | 132 | 1958 | High | Satisfactory |
| Looking Glass Pond Dam Schoharie County | 11 | — | Undetermined | Not Rated |
| Loon Lake Dam Warren County | 15 | 1941 | High | Poor |
| Lost Lake Dam & Dike Putnam County | 10 | 1977 | Low | Not Rated |
| Lotus Lake Dam Suffolk County | 6 | 1980 | Significant | Poor |
| Loudonville Reservoir Dam Albany County | 18 | 1936 | High | Satisfactory |
| Loughberry Lake Dam Saratoga County | 30 | — | High | Poor |
| Louis Dunckel Dam Chenango County | 21 | 1963 | Low | Not Rated |
| Lounsbury Pond Dam Westchester County | 15 | 1919 | Significant | Not Rated |
| Lower Ausable Lake Dam Essex County | 10 | 1912 | Significant | Satisfactory |
| Lower Chia Lin Dam Dutchess County | 18 | 1950 | Significant | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.