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
High107 (25.2%)
Significant136 (32.0%)
Low181 (42.6%)
Condition Assessment
Satisfactory127 (29.9%)
Fair143 (33.6%)
Poor / Unsatisfactory92 (21.6%)
Not Rated63 (14.8%)
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 76–100 of 143
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Little Deer Creek Site 3 Harford County | 45 | 1962 | Significant | Fair |
| Little Deer Creek Site 2a (Mcknight/Rutledge) Harford County | 44 | 1962 | Significant | Fair |
| Little Deer Creek Site 1 Harford County | 45 | 1958 | Significant | Fair |
| Leonard Pond Wicomico County | 11 | 1914 | Low | Fair |
| Lake Serene (Edgewater Drive) Harford County | 29 | 1971 | High | Fair |
| Lake Roland Dam Baltimore County | 42 | 1861 | High | Fair |
| Lake Ridge Community Pond Dam (Alta Drive) Calvert County | 28 | 1969 | Significant | Fair |
| Lake of The Pines (Tarnans Branch Crossing) Anne Arundel County | 22 | 1981 | Significant | Fair |
| Lake Needwood Montgomery County | 65 | 1965 | High | Fair |
| Lake Montebello Baltimore City County | 30 | 1880 | High | Fair |
| Lake Karylbrook Community Pond (Karen Drive) Calvert County | 30 | 1990 | Significant | Fair |
| Lake Jennifer Frederick County | 15 | 1963 | Low | Fair |
| Lake Frank Montgomery County | 78 | 1967 | High | Fair |
| Kurt Sherman Dam (Upper Pond) Washington County | 28 | 1957 | High | Fair |
| Johnsons Pond Wicomico County | 23 | 1936 | Significant | Fair |
| Johns Hopkins Bayview Campus Swm Pond Baltimore City County | 20 | 2004 | Significant | Fair |
| Jessup Prison Dam Anne Arundel County | 31 | 1982 | Significant | Fair |
| Indian Creek Site 3 Prince George's County | 28 | 1983 | High | Fair |
| Indian Creek Site 2 Prince George's County | 22 | 1983 | High | Fair |
| Hunting Creek Dam Frederick County | 79 | 1969 | High | Fair |
| Holton Pond Dam St. Mary's County | 13 | 1958 | Low | Fair |
| Heritage Harbour (Mastline Drive) Anne Arundel County | 34 | 1974 | Low | Fair |
| Hagerstown Municipal Pwr Plant Dam Washington County | 10 | 1950 | Low | Fair |
| Greenspring Quarry Dam Baltimore County | 16 | 2007 | Significant | Fair |
| Glen Elyn Upper Dam Harford County | 19 | 1975 | Significant | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.