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 201–225 of 544
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Hillside Lake Dam Dutchess County | 9 | 1934 | Significant | Poor |
| Holcomb Pond Dam Sullivan County | 10 | 1933 | Significant | Not Rated |
| Hollowbrook Dam Westchester County | 15 | 1920 | Significant | Poor |
| Holmes Mill Dam Dutchess County | 9 | — | Significant | Not Rated |
| Hoosac School Dam Rensselaer County | 25 | 1950 | Significant | Unsatisfactory |
| Hope Lake Dam Cortland County | 30 | 1998 | Significant | Not Rated |
| Horseshoe Lake Dam Genesee County | 20 | 1953 | Significant | Not Rated |
| Horseshoe Pond Dam Essex County | 16 | — | Significant | Not Rated |
| Howard Jeffrey Dam Chenango County | 19 | 1963 | Significant | Satisfactory |
| Howard Lafever Dam Delaware County | 17 | 1976 | Significant | Poor |
| Howard La Fever Dam #1 Delaware County | 25 | 1979 | Significant | Not Rated |
| Howlands Lake Dam Westchester County | 18 | 1895 | Significant | Poor |
| H T Vogel Pond Dam Columbia County | 17 | 1966 | Significant | Satisfactory |
| Hudson Falls Saratoga County | 17 | 1996 | Significant | Satisfactory |
| Humphrey Pond Dam Wyoming County | 29 | — | Significant | Not Rated |
| Ibm Corp Technical Institute Dam Westchester County | 21 | 1985 | Significant | Not Rated |
| Ibm Edcenter Dam A Rockland County | 26 | 1989 | Significant | Not Rated |
| Ibm Pond #1 Dam Tioga County | 17 | 1958 | Significant | Not Rated |
| Indian Kill Reservoir Dam Orange County | 23 | 1958 | Significant | Fair |
| Indian Lake Power & Light CO Dam Hamilton County | 19 | 1929 | Significant | Poor |
| Ireland Vly Dam Saratoga County | 29 | 1931 | Significant | Poor |
| Iroquois St. Lawrence County | 72 | 1958 | Significant | Satisfactory |
| Ischua Creek Watershed Dam #3 Cattaraugus County | 38 | 1966 | Significant | Satisfactory |
| Jackson Pond Dam Chenango County | 15 | 1941 | Significant | Satisfactory |
| James Vance Wildlife Dam Chenango County | 13 | 1972 | Significant | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.