Dams in Allegheny County, Pennsylvania
44Total Dams
16High Hazard
23Significant
Dam Safety in Allegheny County, Pennsylvania
Allegheny County has 44 dams tracked in the National Inventory of Dams. Of these, 16 are classified as high hazard — meaning failure would probably cause loss of human life. Another 23 carry a significant hazard classification.
The average dam in Allegheny County is 59 years old. The most common purpose is recreation. The tallest dam is Harmar Refuse Bank at 410 ft.
Explore more: Oldest dams in Pennsylvania · Tallest dams · High risk dams · Largest reservoirs
| Dam | Hazard | Condition | Height (ft) | Purpose | Year |
|---|---|---|---|---|---|
| Harmar Refuse Bank | High | Satisfactory | 410 | Other | 1957 |
| 14-north Impoundment | High | Satisfactory | 42 | Other | |
| Midfield Sedimentation Pond | High | Satisfactory | 40 | Flood Risk Reduction | 1988 |
| Lanpher | High | Satisfactory | 38 | Water Supply | 1915 |
| Pine Creek (north Park Lake) | High | Fair | 33 | Recreation | 1936 |
| Butlers Lake | High | Satisfactory | 30 | Recreation | 1941 |
| Wittmer Road Detention | High | Satisfactory | 25 | Flood Risk Reduction | 1990 |
| Northmont Farms Basin #1 | High | Satisfactory | 24 | Flood Risk Reduction | 1986 |
| Upper West Deer Lake | High | Satisfactory | 24 | Recreation | |
| Orchard Park Meadows Retention Bas | High | Fair | 21 | Flood Risk Reduction | 1989 |
| Walden Woods | High | Satisfactory | 17 | Flood Risk Reduction | 2000 |
| Lower West Deer Lake | High | Satisfactory | 16 | Recreation | |
| Middle West Deer | High | Satisfactory | 16 | Recreation | |
| Lake Steuben | High | Fair | 14 | Recreation | |
| Pngc Reservoir No 6 | High | Satisfactory | 11 | Irrigation | |
| Panther Hollow Lake | High | Not Rated | 0 | Flood Risk Reduction | |
| Taxiway "e" Detention Basin | Significant | Satisfactory | 84 | Flood Risk Reduction | 1996 |
| Allegheny River Lock And Dam 2 | Significant | Not Available | 58 | Navigation | 1934 |
| Montour Heights Country Club | Significant | Satisfactory | 54 | Recreation | 1987 |
| Breckenridge Detention | Significant | Satisfactory | 49 | Flood Risk Reduction | |
| Dashields Locks And Dam | Significant | Not Available | 44 | Navigation | 1929 |
| C.w. Bill Young Lock And Dam | Significant | Not Available | 36 | Navigation | 1934 |
| Duncan Ave West Flood Control | Significant | Satisfactory | 34 | Flood Risk Reduction | |
| Braddock Locks And Dam | Significant | Not Available | 33 | Navigation | 1905 |
| Lakemont Farms No 1 | Significant | Satisfactory | 30 | Recreation | |
| Lake Macleod | Significant | Fair | 30 | Recreation | |
| Emsworth Locks And Dams | Significant | Not Available | 25 | Navigation | 1938 |
| Pine Hollow Detention | Significant | Satisfactory | 22 | Flood Risk Reduction | 1999 |
| Lakemont Farms No 2 | Significant | Satisfactory | 20 | Recreation | |
| Huntington Woods Retention Pond | Significant | Satisfactory | 20 | Flood Risk Reduction | 1988 |
| Campbells Pond | Significant | Satisfactory | 19 | Recreation | 1946 |
| Thorn Hill Park Detention Basin | Significant | Fair | 18 | Flood Risk Reduction | 1987 |
| Laroche College Detention Basin #1 | Significant | Satisfactory | 18 | Flood Risk Reduction | 1988 |
| Slade | Significant | Satisfactory | 17 | Recreation | |
| Laroche College Detention Basin #2 | Significant | Satisfactory | 17 | Flood Risk Reduction | 1992 |
| Village At Pine | Significant | Satisfactory | 15 | Flood Risk Reduction | 1979 |
| Sutula/stroud | Significant | Satisfactory | 13 | Recreation | |
| Rock Airport | Significant | Fair | 11 | Recreation | |
| Pittsburgh Cut Flower | Significant | Satisfactory | 0 | Recreation | |
| Russelton Slurry Pond No 3 | Low | Satisfactory | 153 | Other | 1967 |
| Spring Valley Lake | Low | Fair | 43 | Recreation | 1964 |
| Harmar Storage Pond No 4 | Low | Satisfactory | 39 | Other | 1980 |
| Hanger Service Road Det Basin | Low | Satisfactory | 28 | Flood Risk Reduction | 1992 |
| Marshall Lake | Low | Fair | 14 | Recreation |