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 276–300 of 419
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| New Croton Reservoir Dam Westchester County | 174 | 1906 | High | Not Rated |
| New Rochelle Reservoir #1 Dam Westchester County | 30 | 1894 | High | Poor |
| New Rochelle Reservoir #3 Dam Westchester County | 30 | 1908 | High | Satisfactory |
| Newton Falls Upper St. Lawrence County | 50 | 1927 | High | Satisfactory |
| Newtown Hoffman Site 12e Dam Chemung County | 71 | 1989 | High | Satisfactory |
| Newtown Hoffman Site 18 Dam Chemung County | 71 | 1978 | High | Fair |
| Newtown Hoffman Site 1 Dam Chemung County | 46 | 1976 | High | Satisfactory |
| Newtown Hoffman Site 3a Dam Chemung County | 53 | 1976 | High | Satisfactory |
| Newtown Hoffman Site 5a Dam Chemung County | 52 | 1999 | High | Satisfactory |
| Norfolk Dam St. Lawrence County | 29 | 1965 | High | Not Rated |
| Normanskill Albany County | 39 | 1916 | High | Fair |
| North Lake Dam Westchester County | 32 | 1936 | High | Satisfactory |
| Norwich Reservoir #1 Dam Chenango County | 47 | 1881 | High | Poor |
| Norwich Reservoir #2 Dam Chenango County | 56 | 1890 | High | Poor |
| Norwood St. Lawrence County | 24 | 1928 | High | Fair |
| Nuclear Lake Dam Dutchess County | 24 | 1936 | High | Not Available |
| Oak Orchard Creek Dam Orleans County | 90 | 1917 | High | Satisfactory |
| Ogdensburg St. Lawrence County | 12 | 1910 | High | Satisfactory |
| Oneida City Reservoir Dam Oneida County | 50 | 1926 | High | Poor |
| Oneida Water Supply Dam Madison County | 18 | 1925 | High | Fair |
| Onondaga Dam Onondaga County | 67 | 1949 | High | Satisfactory |
| Ontario Parks Dam Ontario County | 20 | 1966 | High | Not Rated |
| Oquaga Creek State Park Dam Broome County | 54 | 1976 | High | Poor |
| Otisco Lake Dam Onondaga County | 18 | 1956 | High | Satisfactory |
| Palmers Pond Dam Broome County | 17 | 1982 | High | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.