Browse Dams
1,492 dams in the National Inventory of Dams.
National Inventory of Dams
Browse 1,492 dams from the NID database. Each record includes dam name, location, physical dimensions, hazard potential classification, condition assessment, purpose, owner information, and emergency action plan status. Use the filters below to search by state, hazard level, condition, or keyword.
| Name | State | County | Height (ft) | Hazard | Condition | Year | Purpose |
|---|---|---|---|---|---|---|---|
| Still Creek | Pennsylvania | Schuylkill | 86 | High | Satisfactory | 1935 | Water Supply |
| Lake Pahagaco | Pennsylvania | York | 85 | High | Fair | 1956 | Recreation |
| Two Mile Run | Pennsylvania | Venango | 85 | High | Fair | 1971 | Flood Risk Reduction |
| Laurel Run Reservoir | Pennsylvania | Elk | 84 | High | Poor | 1970 | Water Supply |
| Taxiway "E" Detention Basin | Pennsylvania | Allegheny | 84 | Significant | Satisfactory | 1996 | Flood Risk Reduction |
| Lake Gordon | Pennsylvania | Bedford | 84 | High | Fair | 1913 | Water Supply |
| Hinckston | Pennsylvania | Cambria | 84 | High | Poor | 1905 | Water Supply |
| Bear Gap No 2 | Pennsylvania | Columbia | 83 | High | Fair | 1923 | Water Supply |
| York Indian Rock Dam | Pennsylvania | York | 83 | High | Not Available | 1942 | Flood Risk Reduction |
| Maple Creek #3 Slurry Pond #2 | Pennsylvania | Washington | 83 | High | Satisfactory | - | Other |
| Cross Creek (Pa-661) | Pennsylvania | Washington | 82 | High | Satisfactory | 1979 | Flood Risk Reduction |
| Lake Rene | Pennsylvania | Clearfield | 82 | High | Fair | 1955 | Recreation |
| Labelle Slurry Pond No 2 | Pennsylvania | Fayette | 80 | Significant | Not Rated | - | Other |
| Mill Service No 6 | Pennsylvania | Westmoreland | 80 | High | Satisfactory | 1986 | Other |
| Ashland Reservoir | Pennsylvania | Schuylkill | 80 | High | Poor | 1926 | Water Supply |
| Lehigh Coal & Navigation CO - #14 Plant | Pennsylvania | Schuylkill | 80 | Significant | Not Available | - | Tailings |
| Pa-485 | Pennsylvania | Washington | 78 | High | Satisfactory | 1977 | Flood Risk Reduction |
| Stillwater Dam | Pennsylvania | Susquehanna | 77 | High | Not Available | 1960 | Flood Risk Reduction |
| Hamilton Lake (Pa-602) | Pennsylvania | Tioga | 76 | High | Fair | 1967 | Flood Risk Reduction |
| Enlow Fork (Pa-648) | Pennsylvania | Washington | 76 | High | Satisfactory | 1987 | Flood Risk Reduction |
| Taylor Pond (Pa-446) | Pennsylvania | Pike | 76 | High | Fair | 1963 | Flood Risk Reduction |
| Ft Charles Young | Pennsylvania | Venango | 75 | Low | Not Rated | - | Recreation |
| Gravel Lick | Pennsylvania | Clearfield | 75 | High | Fair | 1974 | Recreation |
| Springton (Geist) | Pennsylvania | Delaware | 75 | High | Fair | 1931 | Water Supply |
| Pine Run | Pennsylvania | Schuylkill | 75 | High | Satisfactory | 1933 | Water Supply |
| Lawrence Baker Sheppard | Pennsylvania | York | 75 | High | Satisfactory | 1965 | Water Supply |
| Mill Service No 5 | Pennsylvania | Westmoreland | 75 | Low | Not Rated | 1976 | Other |
| Safe Harbor | Pennsylvania | Lancaster | 75 | Significant | Satisfactory | 1930 | Hydroelectric |
| Pa-483 | Pennsylvania | Washington | 74 | High | Satisfactory | 1973 | Flood Risk Reduction |
| Mill Creek | Pennsylvania | Luzerne | 74 | High | Fair | 1898 | Water Supply |
| Frank E Heller | Pennsylvania | Lycoming | 73 | High | Poor | 1975 | Water Supply |
| Wolf Creek Reservoir | Pennsylvania | Schuylkill | 73 | High | Fair | 1909 | Water Supply |
| Montgomery | Pennsylvania | Clearfield | 71 | High | Poor | 1960 | Water Supply |
| Pond No 1 | Pennsylvania | Chester | 71 | Low | Fair | 1970 | Tailings |
| Indian Lake | Pennsylvania | Somerset | 71 | High | Satisfactory | 1964 | Recreation |
| Bear Gap No 6 | Pennsylvania | Columbia | 70 | High | Satisfactory | 1915 | Water Supply |
| Briar Creek (Pa 498) | Pennsylvania | Columbia | 70 | High | Fair | 1987 | Flood Risk Reduction |
| Antietam | Pennsylvania | Adams | 70 | High | Fair | 1953 | Water Supply |
| Lackawanna | Pennsylvania | Lackawanna | 69 | High | Fair | 1971 | Recreation |
| Shenango Dam | Pennsylvania | Mercer | 68 | High | Not Available | 1965 | Flood Risk Reduction |
| Bradford City No 5 | Pennsylvania | McKean | 68 | High | Poor | 1957 | Water Supply |
| Kauffman Reservoir | Pennsylvania | Schuylkill | 68 | High | Satisfactory | 1896 | Water Supply |
| Wilsonville | Pennsylvania | Pike | 68 | High | Satisfactory | 1926 | Hydroelectric |
| Bailey No 5 West Saddle | Pennsylvania | Greene | 68 | High | Satisfactory | - | Other |
| Bailey Mine Area No. 3 Saddle A | Pennsylvania | Greene | 67 | High | Satisfactory | 2014 | Other |
| Brownell Reservoir | Pennsylvania | Lackawanna | 67 | High | Fair | 1908 | Water Supply |
| Harmon Creek (Pa-484) | Pennsylvania | Washington | 67 | High | Satisfactory | 1971 | Flood Risk Reduction |
| Pa-480 | Pennsylvania | Washington | 66 | High | Satisfactory | 1979 | Flood Risk Reduction |
| Kelsey Creek (Pa-600) | Pennsylvania | Tioga | 66 | High | Satisfactory | 1967 | Flood Risk Reduction |
| Tipton | Pennsylvania | Blair | 66 | High | Fair | 1924 | Water Supply |
Frequently Asked Questions
Hazard potential is based on the consequences of dam failure, not the condition of the dam. High hazard means loss of human life is probable. Significant means economic and environmental losses are expected but no probable loss of life. Low means minimal losses are expected. The classification considers downstream population, infrastructure, and environmental resources.
Condition ratings reflect the physical state of the dam based on periodic inspections. Satisfactory means no deficiencies found. Fair means minor issues exist but no immediate action needed. Poor means safety deficiencies require remedial action. Unsatisfactory means the dam is unsafe and immediate corrective action is required.
Yes. Use the search field above to find dams by name. You can also combine the search with state, hazard, and condition filters to narrow your results. Each dam record links to a detail page with complete information.