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 26–50 of 143
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Shores of Calvert Lower Dam Calvert County | 15 | 1972 | Low | Fair |
| Shellman Farm Dam Kent County | 10 | 1979 | Low | Fair |
| Seneca Meadows Swm Dam (Seneca Meadows Pkwy) Montgomery County | 17 | 1994 | Low | Fair |
| Scull Farm Pond Caroline County | 22 | 1974 | Low | Fair |
| Sassafras Mill Dam Kent County | 10 | 1934 | Significant | Fair |
| Saefern Dam Anne Arundel County | 26 | 1967 | Low | Fair |
| Roland Run Levee Baltimore County | 15 | 1982 | High | Fair |
| Roeder Farm Pond Allegany County | 12 | 1974 | Low | Fair |
| Roberts Field Basin 1 (North Woods Trail At Boxwood) Carroll County | 25 | 1992 | Significant | Fair |
| Riva Trace Community Pond Anne Arundel County | 15 | 1985 | Significant | Fair |
| Riley Mill Pond Kent County | 14 | 1950 | Low | Fair |
| Richard Smith Dam Kent County | 9 | 1970 | Low | Fair |
| Rewastico Pond (Athol Road) Wicomico County | 10 | 1911 | Low | Fair |
| Queensberry Drive Swm Pond Calvert County | 19 | 2001 | Significant | Fair |
| Queensberry Drive Playground Dam Calvert County | 28 | 1981 | Significant | Fair |
| Queen Annes Village Swm Pond No. 1 Baltimore County | 20 | 2007 | Significant | Fair |
| Priestford Hills Harford County | 24 | 1974 | Low | Fair |
| Prettyboy Dam Baltimore County | 155 | 1936 | High | Fair |
| Powellville Dam Wicomico County | 9 | 1940 | Low | Fair |
| Platter Farm Pond Garrett County | 25 | 1968 | Low | Fair |
| Perrywood (Water Fowl Way) Prince George's County | 19 | 2003 | Low | Fair |
| Perrywood (Manor House Drive) Prince George's County | 16 | 1984 | High | Fair |
| Penn East Business Park Dam Prince George's County | 26 | 2001 | Low | Fair |
| Parker Pond (N. Shumaker Drive) Wicomico County | 11 | 1956 | Low | Fair |
| Owings Farm Pond Queen Anne's County | 16 | 1967 | Significant | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.