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 |
|---|---|---|---|---|
| Cloppers Mill West Pond F (Cricket Hill Drive) Montgomery County | 26 | 1996 | Significant | Fair |
| Columbia Gateway Dam Howard County | 36 | 1972 | High | Fair |
| Cosca Regional Park Dam Prince George's County | 28 | 1970 | High | Fair |
| Cove Point Lng Main Dam Calvert County | 78 | 1974 | Significant | Fair |
| Cove Point Lng Secondary Dam Calvert County | 38 | 1974 | Significant | Fair |
| Cranberry Branch Dam Carroll County | 32 | 1957 | Significant | Fair |
| Daniels Dam Baltimore County | 27 | 1833 | Low | Fair |
| Deep Creek Dam Garrett County | 85 | 1925 | High | Fair |
| Eden Mill Dam Harford County | 18 | 1917 | Significant | Fair |
| Elgin Farm Pond Kent County | 14 | 1965 | Low | Fair |
| Emmitsburg Dam Frederick County | 30 | 1950 | High | Fair |
| Fairfield East Dam Montgomery County | 18 | 2004 | High | Fair |
| Fedex Field Pond No. 1 Prince George's County | 35 | 1997 | High | Fair |
| Ferry Landing Woods Pond Calvert County | 22 | 1981 | Low | Fair |
| Foreman Branch Dam Queen Anne's County | 7 | 1955 | Low | Fair |
| Gateway Village Pond Howard County | 19 | 1988 | Significant | Fair |
| Gbmc Pond Baltimore County | 13 | 1993 | Significant | Fair |
| Glen Elyn Lower Dam (Forest Glen Drive) Harford County | 22 | 1975 | Significant | Fair |
| Glen Elyn Upper Dam Harford County | 19 | 1975 | Significant | Fair |
| Greenspring Quarry Dam Baltimore County | 16 | 2007 | Significant | Fair |
| Hagerstown Municipal Pwr Plant Dam Washington County | 10 | 1950 | Low | Fair |
| Heritage Harbour (Mastline Drive) Anne Arundel County | 34 | 1974 | Low | Fair |
| Holton Pond Dam St. Mary's County | 13 | 1958 | Low | Fair |
| Hunting Creek Dam Frederick County | 79 | 1969 | High | Fair |
| Indian Creek Site 2 Prince George's County | 22 | 1983 | High | Fair |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.