Maryland Dams
425 dams tracked by the National Inventory of Dams
Total Dams
425
High Hazard
107
25.2%
Poor / Unsatisfactory
92
Average Age
60 yrs
Hazard Classification
Condition Assessment
Federal
14
State
45
Local
166
Private
192
Tallest Dams
- Jennings Randolph Dam296 ft
- Savage River Dam184 ft
- Liberty Dam175 ft
- Prettyboy Dam155 ft
- T. Howard Duckett Dam139 ft
High Hazard Dams
Poor Condition Dams
- Liberty DamUnsatisfactory
- Druid Hill Lake Reservoir and Storage TanksPoor
- Rocky Gap DamPoor
- Piney Run DamUnsatisfactory
- Warner Gap Hollow DamUnsatisfactory
All Dams in Maryland
Showing 26–50 of 71
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Parker Farms Dam Prince George's County | 32 | 1978 | Low | Poor |
| Oliver Company (Lower Pond) Washington County | 18 | 1957 | Significant | Poor |
| New Mark Commons Community Lake Montgomery County | 15 | 1966 | Significant | Poor |
| New Bald Eagle Road Swm Prince George's County | 44 | 2006 | High | Poor |
| Midland-Gilmore Reservoir Allegany County | 19 | 1903 | High | Poor |
| Md Route 104 Swm Pond (Sha Bmp 130077) Howard County | 17 | 1990 | Significant | Poor |
| Mc Allister Pond No. 1 Charles County | 22 | 1967 | Low | Poor |
| Martindale Pond Harford County | 20 | 1975 | Significant | Poor |
| Long Hollow Dam Washington County | 25 | 1940 | Low | Poor |
| Lonaconing Reservoir Allegany County | 20 | 1895 | High | Poor |
| Little Bennett Golf Course Montgomery County | 22 | 1992 | Low | Poor |
| Ledford Pond Dam St. Mary's County | 30 | 1975 | Significant | Poor |
| Laurel Lakes No 1 (Lower) Prince George's County | 21 | 1986 | High | Poor |
| Lake Whetstone Dam (Montgomery Village Avenue) Montgomery County | 36 | 1966 | High | Poor |
| Lake Louise Garrett County | 21 | 1930 | Significant | Poor |
| Lake Largo Town Center Dam (Kings Way) Prince George's County | 27 | 1973 | High | Poor |
| Lake Jenkins Washington County | 35 | 1936 | Low | Poor |
| Lake Arbor (Lake Arbor Way) Prince George's County | 38 | 1971 | High | Poor |
| Lake Allen Dam Anne Arundel County | 11 | 1947 | Low | Poor |
| Jones Lake Dam Kent County | 13 | 1930 | Low | Poor |
| Jessup Park Dam Howard County | 15 | 2010 | Significant | Poor |
| Henson Creek Flood Control Dam #17 Prince George's County | 22 | 1992 | High | Poor |
| Hanson Oaks Swm (Bmp Structure 1558-002) Prince George's County | 20 | 1900 | High | Poor |
| Guilford Road Dam Howard County | — | — | Significant | Poor |
| Greenspring East Swm Pond No. 3 (Stream Crossing Road) Baltimore County | 34 | 1995 | Low | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.