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 |
|---|---|---|---|---|---|---|---|
| Pa-486 | Pennsylvania | Washington | 86 | High | Satisfactory | 1979 | Flood Risk Reduction |
| Two Mile Run | Pennsylvania | Venango | 85 | High | Fair | 1971 | Flood Risk Reduction |
| Lake Pahagaco | Pennsylvania | York | 85 | High | Fair | 1956 | Recreation |
| Laurel Run Reservoir | Pennsylvania | Elk | 84 | High | Poor | 1970 | Water Supply |
| Hinckston | Pennsylvania | Cambria | 84 | High | Poor | 1905 | Water Supply |
| Lake Gordon | Pennsylvania | Bedford | 84 | High | Fair | 1913 | Water Supply |
| Taxiway "E" Detention Basin | Pennsylvania | Allegheny | 84 | Significant | Satisfactory | 1996 | Flood Risk Reduction |
| Maple Creek #3 Slurry Pond #2 | Pennsylvania | Washington | 83 | High | Satisfactory | - | Other |
| York Indian Rock Dam | Pennsylvania | York | 83 | High | Not Available | 1942 | Flood Risk Reduction |
| Bear Gap No 2 | Pennsylvania | Columbia | 83 | High | Fair | 1923 | Water Supply |
| Cross Creek (Pa-661) | Pennsylvania | Washington | 82 | High | Satisfactory | 1979 | Flood Risk Reduction |
| Lake Rene | Pennsylvania | Clearfield | 82 | High | Fair | 1955 | Recreation |
| Lehigh Coal & Navigation CO - #14 Plant | Pennsylvania | Schuylkill | 80 | Significant | Not Available | - | Tailings |
| Ashland Reservoir | Pennsylvania | Schuylkill | 80 | High | Poor | 1926 | Water Supply |
| Mill Service No 6 | Pennsylvania | Westmoreland | 80 | High | Satisfactory | 1986 | Other |
| Labelle Slurry Pond No 2 | Pennsylvania | Fayette | 80 | Significant | Not Rated | - | Other |
| 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 |
| Taylor Pond (Pa-446) | Pennsylvania | Pike | 76 | High | Fair | 1963 | Flood Risk Reduction |
| Enlow Fork (Pa-648) | Pennsylvania | Washington | 76 | High | Satisfactory | 1987 | Flood Risk Reduction |
| Springton (Geist) | Pennsylvania | Delaware | 75 | High | Fair | 1931 | Water Supply |
| Mill Service No 5 | Pennsylvania | Westmoreland | 75 | Low | Not Rated | 1976 | Other |
| Lawrence Baker Sheppard | Pennsylvania | York | 75 | High | Satisfactory | 1965 | Water Supply |
| Pine Run | Pennsylvania | Schuylkill | 75 | High | Satisfactory | 1933 | Water Supply |
| Ft Charles Young | Pennsylvania | Venango | 75 | Low | Not Rated | - | Recreation |
| Gravel Lick | Pennsylvania | Clearfield | 75 | High | Fair | 1974 | Recreation |
| 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 |
| Antietam | Pennsylvania | Adams | 70 | High | Fair | 1953 | Water Supply |
| Briar Creek (Pa 498) | Pennsylvania | Columbia | 70 | High | Fair | 1987 | Flood Risk Reduction |
| Lackawanna | Pennsylvania | Lackawanna | 69 | High | Fair | 1971 | Recreation |
| Wilsonville | Pennsylvania | Pike | 68 | High | Satisfactory | 1926 | Hydroelectric |
| Shenango Dam | Pennsylvania | Mercer | 68 | High | Not Available | 1965 | Flood Risk Reduction |
| Bailey No 5 West Saddle | Pennsylvania | Greene | 68 | High | Satisfactory | - | Other |
| Kauffman Reservoir | Pennsylvania | Schuylkill | 68 | High | Satisfactory | 1896 | Water Supply |
| Bradford City No 5 | Pennsylvania | McKean | 68 | High | Poor | 1957 | Water Supply |
| Brownell Reservoir | Pennsylvania | Lackawanna | 67 | High | Fair | 1908 | Water Supply |
| Harmon Creek (Pa-484) | Pennsylvania | Washington | 67 | High | Satisfactory | 1971 | Flood Risk Reduction |
| Bailey Mine Area No. 3 Saddle A | Pennsylvania | Greene | 67 | High | Satisfactory | 2014 | Other |
| Tipton | Pennsylvania | Blair | 66 | High | Fair | 1924 | Water Supply |
| Kelsey Creek (Pa-600) | Pennsylvania | Tioga | 66 | High | Satisfactory | 1967 | Flood Risk Reduction |
| Pa-480 | Pennsylvania | Washington | 66 | High | Satisfactory | 1979 | Flood Risk Reduction |
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.