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 226–250 of 348
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Harrisville Lewis County | 25 | 1905 | Low | Satisfactory |
| Hannawa St. Lawrence County | 34 | 1902 | Low | Satisfactory |
| Hadlock Pond Dam Washington County | 29 | 1896 | High | Satisfactory |
| Groveville Dutchess County | 52 | 1875 | High | Satisfactory |
| Green Lake Dam Erie County | 37 | 1909 | High | Satisfactory |
| Grassy Sprain Reservoir Dam Westchester County | 40 | 1876 | High | Satisfactory |
| Granby Oswego County | 15 | 1926 | Significant | Satisfactory |
| Gouverneur St. Lawrence County | 7 | 1925 | Significant | Satisfactory |
| Gouldtown - Mill 5 East Channel Lewis County | 10 | 1991 | Low | Satisfactory |
| Glenwood Lake Dam Orleans County | 31 | 1903 | High | Satisfactory |
| Glens Falls Warren County | 16 | 1916 | Significant | Satisfactory |
| Glenn Lake Dam Chenango County | 43 | 1965 | High | Satisfactory |
| Glenmere Lake Dam Orange County | 24 | 1880 | High | Satisfactory |
| Glencliff Road Detention Basin Dam Onondaga County | 13 | 1977 | Significant | Satisfactory |
| Gilboa Dam Schoharie County | 183 | 1926 | High | Satisfactory |
| Galway Lake Dam Saratoga County | 30 | 1982 | High | Satisfactory |
| Furnace Brook Lake Dam Westchester County | 24 | 1913 | High | Satisfactory |
| Fresh Air Fund Dam #2 Dutchess County | 47 | 1966 | High | Satisfactory |
| Fresh Air Fund Dam #1 Dutchess County | 45 | 1951 | High | Satisfactory |
| Franklin Falls Franklin County | 45 | 1906 | Low | Satisfactory |
| Fowler #7 - Dam No. 1 St. Lawrence County | 25 | 1928 | Low | Satisfactory |
| Fort Miller Washington County | 7 | 1984 | Low | Satisfactory |
| Forestport Oneida County | 27 | 1904 | High | Satisfactory |
| Forest Lake Dam Westchester County | 12 | 1996 | High | Satisfactory |
| Flat Rock St. Lawrence County | 72 | 1925 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.