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 101–125 of 127
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Glenmar Pond 2 Dam Howard County | 3 | 1984 | Significant | Satisfactory |
| Gerwig Lane Swm Howard County | — | 1980 | High | Satisfactory |
| Germantown Estates Regional Facility Swm Dam (Steeple Road) Montgomery County | 22 | 1995 | Low | Satisfactory |
| Fullerton Reservoir Tanks Baltimore County | 15 | 2020 | High | Satisfactory |
| Frederick Research Park Lot 4 Swm Pond Frederick County | 18 | 1988 | Low | Satisfactory |
| Falls Road Golf Course Montgomery County | 25 | 1990 | High | Satisfactory |
| Don Pleasants Dam Allegany County | 50 | 1977 | Significant | Satisfactory |
| Diversified Lane Pond Dam Howard County | 8 | 1992 | Significant | Satisfactory |
| Damazo Pond Frederick County | 22 | 1975 | Low | Satisfactory |
| Crofton Farms Regional Swm Pond Anne Arundel County | 15 | 1998 | Low | Satisfactory |
| Crabbs Branch Swm Facility (Redland Road) Montgomery County | 27 | 1983 | High | Satisfactory |
| Cox Creek Dmcf Anne Arundel County | 36 | 1960 | High | Satisfactory |
| Conowingo Cecil County | 94 | 1928 | High | Satisfactory |
| Collington Facility 9 Dam (Dunwood Crossing Dr) Prince George's County | 21 | 1990 | High | Satisfactory |
| Cherry Hill Park Dam Prince George's County | 13 | 1986 | Significant | Satisfactory |
| Chenoweth Farm Pond Baltimore County | 24 | 1990 | Low | Satisfactory |
| Chartwell Country Club Dam Anne Arundel County | 22 | 2010 | Significant | Satisfactory |
| Chadswood Swm Pond (Cross Laurel Drive) Montgomery County | 20 | 1981 | Significant | Satisfactory |
| Centennial Park Dam Howard County | 42 | 1985 | High | Satisfactory |
| Cecil Sand and Gravel Pond 7 Cecil County | 24 | 2017 | Significant | Satisfactory |
| Brighton West Swm Pond Montgomery County | 16 | 1975 | Low | Satisfactory |
| Brighton Montgomery County | 82 | 1943 | High | Satisfactory |
| Boxers Rest Farm Pond Queen Anne's County | 8 | 1975 | Low | Satisfactory |
| Blairs Valley Dam Washington County | 34 | 1968 | High | Satisfactory |
| Ashton Community Pond Dam Montgomery County | 22 | 1959 | Significant | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.