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 151–175 of 278
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Martin Dunham Reservoir Dam Rensselaer County | 59 | 1913 | High | Poor |
| Mason Farm Pond Dam Columbia County | 15 | 1965 | Significant | Poor |
| Mckinley Mall Retention Pond Dam Erie County | 25 | 1985 | High | Poor |
| Melody Lake Dam Cortland County | 26 | 1902 | High | Poor |
| Melzingah Dam Dutchess County | 51 | 1924 | High | Poor |
| Mill Brook Site 2 Dam Chenango County | 87 | 1986 | High | Poor |
| Milligan & Higgins Dam Fulton County | 12 | 1907 | Significant | Poor |
| Mill Pond Dam Rensselaer County | 12 | 1918 | High | Poor |
| Mine Lake Orange County | 22 | 1845 | Significant | Poor |
| Minkel Dam Westchester County | 18 | 1929 | High | Poor |
| Mirror Lake Dam Herkimer County | 25 | — | High | Poor |
| Mud Lock C&S Canal Dam Cayuga County | 20 | 1912 | High | Poor |
| Murphy Foundation Dam Schoharie County | 18 | — | Significant | Poor |
| Murray Hill Estates Dam Westchester County | 20 | 1979 | Significant | Poor |
| Nanticoke Creek Site 7b Dam Tioga County | 44 | 1970 | High | Poor |
| New Hope Saw Mill Dam Cayuga County | 19 | 1850 | Significant | Poor |
| Newkirk Pond Dam Fulton County | 15 | — | Significant | Poor |
| New Rochelle Reservoir #1 Dam Westchester County | 30 | 1894 | High | Poor |
| Norwich Reservoir #1 Dam Chenango County | 47 | 1881 | High | Poor |
| Norwich Reservoir #2 Dam Chenango County | 56 | 1890 | High | Poor |
| Norwich Ymca Recreation Pond Dam Chenango County | 39 | 1970 | Significant | Poor |
| Old Forge Reservoir Dam Herkimer County | 18 | 1905 | Significant | Poor |
| Onderdonk Lake Dam Albany County | 11 | 1928 | Significant | Poor |
| Oneida City Reservoir Dam Oneida County | 50 | 1926 | High | Poor |
| Onteora Pond Dam Greene County | 18 | 1924 | Significant | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.