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 1151–1175 of 1,871
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Mill Pond Dam Orange County | 17 | 1783 | Low | Not Rated |
| Mill Pond Dam Rensselaer County | 12 | 1918 | High | Poor |
| Mill Pond Dam Nassau County | 18 | 1983 | Low | Not Rated |
| Mill Pond Dam Essex County | 18 | 1978 | Low | Not Rated |
| Mill Pond Dam Suffolk County | 11 | 1920 | Low | Not Rated |
| Mill River Dam Westchester County | 100 | 1966 | High | Satisfactory |
| Mills Mills Dam Allegany County | 12 | 1930 | Low | Not Rated |
| Mill Street Dam Cayuga County | 25 | 1800 | High | Satisfactory |
| Mine Lake Orange County | 22 | 1845 | Significant | Poor |
| Minerva Lake Dam Essex County | 20 | 1931 | Low | Not Rated |
| Minetto Lock & Dam 5 Oswego County | 23 | 1915 | High | Fair |
| Minkel Dam Westchester County | 18 | 1929 | High | Poor |
| Minton Dam Chautauqua County | 45 | 1936 | Low | Not Rated |
| Mirror Lake Dam Herkimer County | 25 | — | High | Poor |
| Mirror Lake Dam Washington County | 18 | 1991 | Low | Not Rated |
| Moe Pond Dam Otsego County | 19 | 1935 | Significant | Satisfactory |
| Mogisca Lake Dam Sullivan County | 36 | 1976 | Significant | Not Rated |
| Mohawk Papers - East Dam Saratoga County | 7 | 1962 | Low | Satisfactory |
| Mohr Dam Erie County | 31 | 2000 | Low | Not Rated |
| Mongaup Sullivan County | 45 | 1925 | High | Fair |
| Monhagen Lake Dam Orange County | 12 | 1867 | Significant | Fair |
| Monhagen Lake Dike Orange County | 20 | 1867 | High | Fair |
| Monroe Recreation Lake Dam Orange County | 14 | 1936 | Low | Not Rated |
| Monroe Reservoir Dam Orange County | 8 | — | Low | Not Rated |
| Monte Shields Farm Pond Dam Cattaraugus County | 15 | 1955 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.