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 |
|---|---|---|---|---|---|---|---|
| Penallen | Pennsylvania | Montgomery | 12 | Significant | Fair | 1982 | Flood Risk Reduction |
| Lake Ellyn | Pennsylvania | Wayne | 12 | High | Satisfactory | 1914 | Recreation |
| Lakeside Pond | Pennsylvania | Susquehanna | 12 | Low | Fair | 1840 | Recreation |
| Country Bend | Pennsylvania | Bucks | 12 | Significant | Fair | 1986 | Flood Risk Reduction |
| Bayly Pond | Pennsylvania | Wayne | 12 | Low | Poor | 1961 | Recreation |
| Sunset Lake | Pennsylvania | Columbia | 12 | Low | Not Rated | - | Other |
| Madison Heights | Pennsylvania | Butler | 12 | Low | Not Rated | 2005 | Recreation |
| Rinehart | Pennsylvania | Montgomery | 12 | Significant | Satisfactory | 1988 | Recreation |
| Culbertson | Pennsylvania | Venango | 12 | Low | Not Rated | - | Other |
| Howell Pond | Pennsylvania | Wayne | 12 | Low | Fair | - | Other |
| Makefield Glen Detention B | Pennsylvania | Bucks | 12 | Significant | Poor | 1988 | Flood Risk Reduction |
| Golf Ridge Lower | Pennsylvania | Montgomery | 12 | High | Fair | 1996 | Recreation |
| No 5 | Pennsylvania | Northumberland | 12 | Low | Not Rated | 1896 | Recreation |
| Beaver Run | Pennsylvania | Pike | 12 | Low | Fair | 1956 | Recreation |
| Mink Pond | Pennsylvania | Pike | 12 | High | Satisfactory | 1919 | Recreation |
| Mill Creek | Pennsylvania | Bradford | 12 | High | Fair | 1954 | Recreation |
| Larsen Lake | Pennsylvania | Wayne | 12 | High | Poor | 1910 | Recreation |
| Ciccotti | Pennsylvania | Bradford | 12 | Significant | Fair | 1968 | Recreation |
| Blue Giant Meadow | Pennsylvania | Luzerne | 12 | Significant | Satisfactory | 1912 | Recreation |
| Deerfield Lake | Pennsylvania | Wayne | 12 | High | Fair | 1971 | Recreation |
| Lake Watawga | Pennsylvania | Wayne | 12 | Significant | Poor | 1907 | Recreation |
| Paradise Lake No. 2 | Pennsylvania | Fayette | 12 | Significant | Poor | 1973 | Recreation |
| Monroe Lake | Pennsylvania | Monroe | 12 | High | Fair | 1926 | Recreation |
| K-Section | Pennsylvania | Adams | 12 | Significant | Fair | 1970 | Recreation |
| Acre Pond | Pennsylvania | Susquehanna | 12 | High | Satisfactory | 1825 | Recreation |
| Lake Jamie | Pennsylvania | Monroe | 12 | High | Satisfactory | 1956 | Recreation |
| Lake Caroline | Pennsylvania | Bucks | 12 | Low | Fair | 1953 | Recreation |
| Forest Lake | Pennsylvania | Susquehanna | 12 | Significant | Satisfactory | 1842 | Recreation |
| Lake Quinn | Pennsylvania | Wayne | 12 | High | Poor | 1946 | Recreation |
| Rolling Greens (Bethlehem Twp Det) | Pennsylvania | Northampton | 12 | High | Satisfactory | 1986 | Flood Risk Reduction |
| Eagle Lake | Pennsylvania | Lackawanna | 12 | High | Satisfactory | 1895 | Recreation |
| Siegel Marsh | Pennsylvania | Erie | 12 | Significant | Not Rated | 1958 | Recreation |
| Moosic Lakes | Pennsylvania | Lackawanna | 12 | Significant | Poor | - | Recreation |
| Douglas Pond | Pennsylvania | Wayne | 12 | Low | Fair | 1964 | Recreation |
| Harkins Pond | Pennsylvania | Luzerne | 12 | High | Satisfactory | - | Recreation |
| Little Keen Pond | Pennsylvania | Wayne | 12 | Significant | Fair | 1902 | Recreation |
| Norristown (Swede Street) | Pennsylvania | Montgomery | 12 | Low | Satisfactory | 1800 | Recreation |
| Locust Lake | Pennsylvania | Monroe | 12 | High | Satisfactory | - | Recreation |
| Somerset Lakes Basin No 2 | Pennsylvania | Chester | 12 | Significant | Fair | 1991 | Flood Risk Reduction |
| Pa-106 | Pennsylvania | Crawford | 12 | Low | Not Rated | 1978 | Recreation |
| Four Seasons Lake | Pennsylvania | Susquehanna | 12 | Significant | Poor | - | Recreation |
| West Whiteland Business Park | Pennsylvania | Chester | 12 | Significant | Poor | - | Flood Risk Reduction |
| Mountaintop Lake #2 | Pennsylvania | Monroe | 12 | High | Fair | 1993 | Recreation |
| Lower Birchwood Lake | Pennsylvania | Pike | 12 | High | Satisfactory | 1960 | Recreation |
| Werrys Lake | Pennsylvania | Monroe | 12 | Low | Fair | 1929 | Recreation |
| Cumberland No. 2 Sediment Pond. | Pennsylvania | Greene | 12 | Significant | Satisfactory | 2003 | Other |
| Muddy Run East Dike | Pennsylvania | Lancaster | 12 | Low | Satisfactory | 1967 | Hydroelectric |
| Moon Lake | Pennsylvania | Schuylkill | 12 | High | Poor | - | Recreation |
| Crystal Lake Dam 2 | Pennsylvania | Luzerne | 12 | High | Satisfactory | 1888 | Water Supply |
| Deer Lake | Pennsylvania | Schuylkill | 12 | High | Poor | 1925 | Recreation |
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.