40Total Dams
21High Hazard
9Significant
Dam Safety in Butler County, Pennsylvania
Butler County has 40 dams tracked in the National Inventory of Dams. Of these, 21 are classified as high hazard — meaning failure would probably cause loss of human life. Another 9 carry a significant hazard classification. Currently, 3 dams have a condition assessment of poor or unsatisfactory.
The average dam in Butler County is 59 years old. The most common purpose is recreation. The tallest dam is Fawn Mine #91 Refuse Impoundment at 120 ft.
Explore more: Oldest dams in Pennsylvania · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Fawn Mine #91 Refuse Impoundment | High | Fair | 120 | Other | |
| Sludge Bed No 6 | High | Fair | 88 | Other | 1983 |
| Indspec No 3 | High | Fair | 59 | Grade Stabilization | 1975 |
| Sawmill Run | High | Fair | 58 | Grade Stabilization | 1968 |
| Moraine State Park | High | Satisfactory | 55 | Recreation | 1968 |
| Merriman | High | Fair | 40 | Recreation | 1966 |
| Thorn Run | High | Satisfactory | 40 | Water Supply | 1903 |
| Lake Oneida | High | Satisfactory | 38 | Water Supply | 1918 |
| Evans City Waterworks No 1 | High | Fair | 38 | Water Supply | 1954 |
| Sludge Bed No 5 | High | Fair | 37 | Other | 1983 |
| Butler Hunt Club | High | Not assessed | 33 | Fish and Wildlife Pond | 1968 |
| Sludge Bed No 4 | High | Fair | 30 | Other | 1984 |
| Glade Run | High | Satisfactory | 29 | Recreation | 1955 |
| Indspec No 2 | High | Satisfactory | 27 | Grade Stabilization | 1950 |
| Lake Saxony | High | Fair | 26 | Irrigation | 1958 |
| Lakeland Country Estates Green Lake | High | Fair | 25 | Recreation | |
| Hull Plan Lake | High | Poor | 25 | Recreation | |
| Glades | High | Satisfactory | 24 | Recreation | 1974 |
| Sonneborn (witco) Reservoir | High | Poor | 23 | Grade Stabilization | 1951 |
| Sherwood Oaks Lake | High | Fair | 16 | Recreation | 1981 |
| Treesdale Impoundment #1 | High | Fair | 15 | Recreation | |
| Kelly Farm | Significant | Unsatisfactory | 30 | Other | |
| Conway Sportsman's Club Upper | Significant | Not assessed | 21 | Recreation | 1917 |
| Walden Pond | Significant | Not assessed | 18 | Other | |
| Manor Creek Farms | Significant | Not assessed | 18 | Flood Risk Reduction | |
| Camp Trees | Significant | Not assessed | 17 | Recreation | |
| Blue Ridge Det | Significant | Not assessed | 16 | Flood Risk Reduction | 1990 |
| Lakevue Estates | Significant | Not assessed | 15 | Other | |
| Laurelwood | Significant | Not assessed | 14 | Flood Risk Reduction | 1993 |
| Seven Fields Regional Sw Det | Significant | Not assessed | 14 | Flood Risk Reduction | 1999 |
| Schneider 2 | Low | Not assessed | 32 | Fish and Wildlife Pond | 1980 |
| Amerikohl Management | Low | Not assessed | 29 | Other | 1983 |
| Lukavick | Low | Not assessed | 27 | Recreation | 1969 |
| Hidden Valley | Low | Not assessed | 27 | Recreation | 1974 |
| Johnston | Low | Not assessed | 26 | Recreation | 1978 |
| Boldy | Low | Not assessed | 25 | Fish and Wildlife Pond | 1967 |
| Orchard Course No. 3 Impoundment | Low | Not assessed | 20 | Irrigation | 1925 |
| Greisinger | Low | Not assessed | 19 | Recreation | 1956 |
| Orchard Course No. 2 Impoundment | Low | Not assessed | 16 | Flood Risk Reduction | 1994 |
| Madison Heights | Low | Not assessed | 12 | Recreation | 2005 |