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 51–75 of 107
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Lake Ashburton Reservoir and Storage Tanks Baltimore City County | 40 | 1910 | High | Not Rated |
| Lake Elkhorn Howard County | 26 | 1974 | High | Satisfactory |
| Lake Frank Montgomery County | 78 | 1967 | High | Fair |
| Lake Helene Dam Montgomery County | 27 | 1950 | High | Satisfactory |
| Lake Largo Town Center Dam (Kings Way) Prince George's County | 27 | 1973 | High | Poor |
| Lake Linganore Frederick County | 63 | 1972 | High | Unsatisfactory |
| Lake Montebello Baltimore City County | 30 | 1880 | High | Fair |
| Lake Needwood Montgomery County | 65 | 1965 | High | Fair |
| Lake Roland Dam Baltimore County | 42 | 1861 | High | Fair |
| Lake Serene (Edgewater Drive) Harford County | 29 | 1971 | High | Fair |
| Lake Walker Dam - Pond 1 (Montgomery Village Avenue) Montgomery County | 35 | 1966 | High | Satisfactory |
| Lake Whetstone Dam (Montgomery Village Avenue) Montgomery County | 36 | 1966 | High | Poor |
| Laurel Lakes No 1 (Lower) Prince George's County | 21 | 1986 | High | Poor |
| Liberty Dam Baltimore County | 175 | 1953 | High | Unsatisfactory |
| Little Seneca Dam Montgomery County | 99 | 1984 | High | Fair |
| Little Youghiogheny Site 1 Garrett County | 36 | 1964 | High | Fair |
| Little Youghiogheny Site 2 Garrett County | 35 | 1962 | High | Fair |
| Little Youghiogheny Site 3 Garrett County | 35 | 1965 | High | Fair |
| Little Youghiogheny Site 5 Garrett County | 45 | 1968 | High | Fair |
| Little Youghiogheny Site 6 (Broadford) Garrett County | 60 | 1971 | High | Fair |
| Little Youghiogheny Site 7 Garrett County | 45 | 1960 | High | Fair |
| Loch Raven Dam Baltimore County | 130 | 1923 | High | Satisfactory |
| Lonaconing Reservoir Allegany County | 20 | 1895 | High | Poor |
| Lower Lake Royer Washington County | 19 | 1898 | High | Fair |
| Mays Chapel Reservoir Baltimore County | 20 | 1965 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.