Dams in Cattaraugus County, New York
40Total Dams
12High Hazard
14Significant
Dam Safety in Cattaraugus County, New York
Cattaraugus County has 40 dams tracked in the National Inventory of Dams. Of these, 12 are classified as high hazard — meaning failure would probably cause loss of human life. Another 14 carry a significant hazard classification. Currently, 2 dams have a condition assessment of poor or unsatisfactory.
The average dam in Cattaraugus County is 64 years old. The most common purpose is recreation. The tallest dam is Nys Atomic Development Dam #1 at 95 ft.
Explore more: Oldest dams in New York · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Conewango Creek Site 19 Dam | High | Fair | 65 | Flood Risk Reduction | 1971 |
| Ischua Creek Watershed Dam #6a | High | Fair | 63 | Recreation | 1971 |
| Ischua Creek Watershed Dam #5 | High | Fair | 54 | Flood Risk Reduction | 1961 |
| Ischua Creek Watershed Dam #4 | High | Fair | 51 | Flood Risk Reduction | 1961 |
| Conewango Creek Site 16 Dam | High | Fair | 51 | Flood Risk Reduction | 1964 |
| Conewango Creek Site 1 Dam | High | Fair | 48 | Flood Risk Reduction | 1969 |
| Conewango Creek Site 16a Dam | High | Fair | 42 | Flood Risk Reduction | 1970 |
| Ischua Creek Watershed Dam #2 | High | Satisfactory | 42 | Flood Risk Reduction | 1961 |
| Holimont Upper Reservoir Dam | High | Satisfactory | 35 | Other | 2003 |
| Tannenbaum Reservoir Dam | High | Satisfactory | 31 | Other | 2006 |
| Ischua Creek Watershed Dam #1 | High | Fair | 27 | Flood Risk Reduction | 1964 |
| Harwood Lake Dam | High | Fair | 22 | Recreation | 1963 |
| Quaker Run Dam | Significant | Satisfactory | 59 | Recreation | 1930 |
| Conewango Creek Site 13 Dam | Significant | Not Rated | 39 | Flood Risk Reduction | 1982 |
| Ischua Creek Watershed Dam #3 | Significant | Satisfactory | 38 | Flood Risk Reduction | 1966 |
| Camp Chautauqua Pond Dam | Significant | Not Rated | 36 | Recreation | 1965 |
| Rotary Lake Dam | Significant | Not Rated | 26 | Recreation | |
| Red House Lake Dam | Significant | Not Rated | 26 | Recreation | 1929 |
| Edgar Ploetz Recreational Pond Dam | Significant | Poor | 22 | Recreation | 1969 |
| Rainbow Lake Dam | Significant | Not Rated | 22 | Other | 1964 |
| Efner Davis Pond Dam | Significant | Poor | 21 | Recreation | 1961 |
| Sunset Saddle Dam | Significant | Not Rated | 20 | Other | |
| Richard Weishan Pond Dam | Significant | Not Rated | 16 | Recreation | 1961 |
| William O Nannen Pond Dam | Significant | Fair | 15 | Recreation | 1964 |
| Cabic Pond Dam | Significant | Not Rated | 15 | Fish and Wildlife Pond | 1964 |
| Lime Lake Outlet Dam | Significant | Not Rated | 12 | Recreation | 1850 |
| Nys Atomic Development Dam #1 | Low | Not Rated | 95 | Water Supply | 1963 |
| Camp Lakeland Pond Dam | Low | Not Rated | 47 | Recreation | 1964 |
| Nys Atomic Development Dam #2 | Low | Not Rated | 45 | Water Supply | 1963 |
| Science Lake Dam | Low | Not Rated | 28 | Recreation | 1925 |
| Alpine Heights Pond Dam | Low | Not Rated | 20 | Recreation | 1975 |
| Vee Pond Dam | Low | Not Rated | 16 | Other | 1947 |
| Monte Shields Farm Pond Dam | Low | Not Rated | 15 | Flood Risk Reduction | 1955 |
| Stuart Klahn Dam | Low | Not Rated | 14 | Other | 1952 |
| Lyle Harwood Recreational Pond Dam | Low | Not Rated | 13 | Recreation | 1967 |
| Cattaraugus County Sportsmans Dam #1 | Low | Not Rated | 12 | Recreation | 1966 |
| James Hughey Dam | Low | Not Rated | 10 | Recreation | 1964 |
| Bentley Wildlife Marsh Dam | Low | Not Rated | 10 | Fish and Wildlife Pond | 2001 |
| H Tigler Wildlife Dam | Low | Not Rated | 7 | Other | |
| Lyle Underwood W L Pond #2 Dam & Dike | Low | Not Rated | 7 | Other | 1954 |