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 126–136 of 136
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Calvert Gateway Calvert County | 16 | 2000 | Significant | Fair |
| Bwi Pond B12 Anne Arundel County | 21 | 1995 | Significant | Poor |
| Burnt Mills Dam Montgomery County | 23 | 1930 | Significant | Fair |
| Burba Lake Dam Anne Arundel County | 16 | 1927 | Significant | Unsatisfactory |
| Breton Bay Golf and Country Club Dam St. Mary's County | 45 | 1970 | Significant | Unsatisfactory |
| Bobcat Pond Allegany County | 13 | 2016 | Significant | Poor |
| Banneker Regional Pond Baltimore County | 15 | 2006 | Significant | Not Rated |
| Aspen Lake Carroll County | — | — | Significant | Unsatisfactory |
| Ashton Community Pond Dam Montgomery County | 22 | 1959 | Significant | Satisfactory |
| Annapolis Reservoir Anne Arundel County | 15 | 1920 | Significant | Fair |
| Amtrak Railroad Culvert 100.18 Baltimore City County | 24 | 1888 | Significant | Fair |
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.