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 1701–1725 of 1,871
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Unionville St. Lawrence County | 20 | 1907 | Low | Satisfactory |
| Upper Beaver Falls Lewis County | 27 | 1937 | High | Satisfactory |
| Upper Brine Reservoir Dam Cortland County | 65 | 1963 | Low | Not Rated |
| Upper Candor Dam Tioga County | 7 | 1920 | Low | Satisfactory |
| Upper Earlville Reservoir Dam Madison County | 20 | 1936 | Significant | Not Rated |
| Upper Fulton Lock & Dam 2 Oswego County | 13 | 1927 | Significant | Fair |
| Upper Greenwich Washington County | 14 | 1918 | Low | Satisfactory |
| Upper Lake Dam Suffolk County | 8 | 1932 | Low | Not Rated |
| Upper Larchmont Road Dam Chemung County | 25 | 2005 | High | Poor |
| Upper Lounsbury Pond Dam Westchester County | 15 | — | Significant | Not Rated |
| Upper & Lower Lakes Dam #1 St. Lawrence County | 12 | 1970 | Low | Not Rated |
| Upper Massapequa Lake Dam Nassau County | 11 | 1900 | Significant | Poor |
| Upper Mechanicville Saratoga County | 19 | 1882 | Significant | Satisfactory |
| Upper North Channel Dam Jefferson County | 24 | 1948 | Significant | Not Rated |
| Upper (North) Wiccopee Dam Putnam County | 34 | 1939 | High | Not Rated |
| Upper Perch River Dam Jefferson County | 7 | 1957 | Low | Not Rated |
| Upper Teakettle Spout Lake Dam Putnam County | 11 | 1950 | Significant | Poor |
| Upper Warwick Dam Orange County | 40 | 1912 | Low | Fair |
| Upper Wee-Wah Lake Dam Orange County | 20 | 1895 | Low | Not Rated |
| U S Gypsum Reservoir Dam Genesee County | 20 | 1927 | Significant | Not Rated |
| Utica Harbor Dam Oneida County | 24 | 1912 | Low | Not Rated |
| Utica Reservoir #2 Dam Oneida County | 25 | 1868 | High | Not Rated |
| Utica Reservoir #4 Dam Oneida County | 55 | 1886 | High | Not Rated |
| Utica Reservoir #5 Dam Oneida County | 34 | 1896 | High | Poor |
| Valencia Lane Dam Saratoga County | 15 | 1964 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.