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 326–350 of 544
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Mt Morris Power Dam Livingston County | 30 | 1916 | Significant | Not Rated |
| Murphy Foundation Dam Schoharie County | 18 | — | Significant | Poor |
| Murray Hill Estates Dam Westchester County | 20 | 1979 | Significant | Poor |
| Muscoot Dam Westchester County | 57 | 1906 | Significant | Not Rated |
| Nassau Lake Dam Rensselaer County | 10 | 1792 | Significant | Not Rated |
| Nathaniel Cole Park Dam Broome County | 46 | 1973 | Significant | Not Rated |
| Naylor Dam Madison County | 20 | 1974 | Significant | Not Rated |
| Newark Reservoir # 2 Dam Ontario County | 28 | 1919 | Significant | Not Rated |
| Newark Reservoir Dam #1 Ontario County | 21 | 1919 | Significant | Not Rated |
| Newfane Dam Niagara County | 14 | 1912 | Significant | Fair |
| New Hope Saw Mill Dam Cayuga County | 19 | 1850 | Significant | Poor |
| Newkirk Pond Dam Fulton County | 15 | — | Significant | Poor |
| Newport Herkimer County | 12 | 1912 | Significant | Satisfactory |
| Niagara Mohawk Power Dam St. Lawrence County | 11 | 1916 | Significant | Not Rated |
| Nimrod Lake Dam Sullivan County | 12 | — | Significant | Not Rated |
| North Division Street Dam Cayuga County | 32 | 1865 | Significant | Not Rated |
| Norwich Ymca Recreation Pond Dam Chenango County | 39 | 1970 | Significant | Poor |
| Oatka Creek Dam Genesee County | 15 | 1934 | Significant | Not Rated |
| Odgen Heights Dam Monroe County | 8 | — | Significant | Not Rated |
| Old Forge Reservoir Dam Herkimer County | 18 | 1905 | Significant | Poor |
| Olmstedville Pond Dam Essex County | 10 | 1934 | Significant | Not Rated |
| Onderdonk Lake Dam Albany County | 11 | 1928 | Significant | Poor |
| Oneida #8 Pond Dam #3 Oneida County | 19 | 1961 | Significant | Not Rated |
| Onteora Pond Dam Greene County | 18 | 1924 | Significant | Poor |
| Orchard Lake Dam Sullivan County | 16 | 1870 | Significant | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.