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 544
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Mine Lake Orange County | 22 | 1845 | Significant | Poor |
| Mill Pond Dam Columbia County | 10 | 1890 | Significant | Not Rated |
| Milligan & Higgins Dam Fulton County | 12 | 1907 | Significant | Poor |
| Mill C Clinton County | 43 | 1922 | Significant | Satisfactory |
| Middleport Waste Weir Dam Niagara County | 17 | 1918 | Significant | Not Rated |
| Middle Greenwich Dam Washington County | 10 | 1902 | Significant | Not Rated |
| Merriewold Lake Dam Orange County | 50 | 1953 | Significant | Not Rated |
| Merriewold Lake Dam Sullivan County | 10 | 1914 | Significant | Not Rated |
| Memorial Recreation Pond Dam Franklin County | 19 | 1946 | Significant | Not Rated |
| Medway Dam Greene County | 30 | 1967 | Significant | Not Rated |
| Medina Aqueduct Dam Orleans County | 21 | 1967 | Significant | Not Rated |
| Mechanicville Rensselaer County | 26 | 1900 | Significant | Satisfactory |
| M C Whatmore Lake Dam Westchester County | 17 | 1964 | Significant | Not Rated |
| Mcdole Mill Pond Dam Orange County | 7 | — | Significant | Not Rated |
| Mayer Pond Dam Dutchess County | 20 | 1967 | Significant | Fair |
| Maybees Waste Weir Dam Niagara County | 21 | 1918 | Significant | Not Rated |
| Mason Farm Pond Dam Columbia County | 15 | 1965 | Significant | Poor |
| Martlings Pond Dam Richmond County | 25 | — | Significant | Fair |
| Martin Lake Dam (Right) Orange County | 12 | 1929 | Significant | Not Rated |
| Martin Lake Dam (Left) Orange County | 12 | 1929 | Significant | Not Rated |
| Marlborough Water District Dam & Dike Ulster County | 23 | 1964 | Significant | Not Rated |
| Mallory Dam Oswego County | 6 | 1909 | Significant | Not Rated |
| Makely Pond Dam Schoharie County | 12 | — | Significant | Not Rated |
| Maiden Lane Detention Pond Dam Monroe County | 13 | 1983 | Significant | Not Rated |
| Macghee Dam Dutchess County | 10 | 1953 | Significant | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.