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 126–150 of 425
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Ppg Rubble Dam Allegany County | 11 | 1950 | Undetermined | Not Rated |
| Powellville Dam Wicomico County | 9 | 1940 | Low | Fair |
| Potomac River Dam #4 Washington County | 20 | 1869 | Significant | Not Available |
| Potomac Dam No. 5 Washington County | 20 | 1830 | Significant | Not Available |
| Poolesville Public Golf Course Montgomery County | 25 | 1953 | Low | Satisfactory |
| Pocomoke City Sewage Lagoon No. 2 (South Pond) Worcester County | 10 | 1972 | Low | Satisfactory |
| Pocomoke City Sewage Lagoon No.1 (North Pond) Worcester County | 10 | 1972 | Low | Satisfactory |
| Plumgar I Regional Swm Dam Montgomery County | 24 | 1989 | Low | Not Rated |
| Pleasant Hills Swm Dam (Gentlebrook Road) Baltimore County | 17 | 1988 | Low | Not Rated |
| Platter Farm Pond Garrett County | 25 | 1968 | Low | Fair |
| Piney Run Dam Carroll County | 73 | 1974 | High | Unsatisfactory |
| Pikesville Reservoir Storage Tanks Baltimore County | 22 | 2007 | High | Satisfactory |
| Piedmont Water Supply Intake Dam Garrett County | 8 | 1911 | Low | Not Rated |
| Perrywood (Water Fowl Way) Prince George's County | 19 | 2003 | Low | Fair |
| Perrywood (Manor House Drive) Prince George's County | 16 | 1984 | High | Fair |
| Perryville Water Supply Cecil County | 15 | 1900 | Significant | Poor |
| Penn East Business Park Dam Prince George's County | 26 | 2001 | Low | Fair |
| Pecks Branch Dam (Ashburton) Baltimore City County | 59 | 1956 | High | Satisfactory |
| Park Retreat Swm Pond Anne Arundel County | 20 | 2013 | Low | Not Rated |
| Parker Pond (N. Shumaker Drive) Wicomico County | 11 | 1956 | Low | Fair |
| Parker Farms Dam Prince George's County | 32 | 1978 | Low | Poor |
| Panagopulos Farm Pond Cecil County | 20 | 1974 | Low | Not Rated |
| Painters Mill Levee Baltimore County | 14 | 1989 | Significant | Satisfactory |
| Owings Farm Pond Queen Anne's County | 16 | 1967 | Significant | Fair |
| Oliver Company (Lower Pond) Washington County | 18 | 1957 | Significant | Poor |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.