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 76–100 of 136
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Linden Chapel Road Swm Dam Howard County | 16 | 1989 | Significant | Satisfactory |
| Ledford Pond Dam St. Mary's County | 30 | 1975 | Significant | Poor |
| Laurel Lumber Dam Howard County | 14 | 2007 | Significant | Satisfactory |
| Lake Waterford Dam Anne Arundel County | 18 | 1925 | Significant | Satisfactory |
| Lake Ridge Community Pond Dam (Alta Drive) Calvert County | 28 | 1969 | Significant | Fair |
| Lake Placid Dam (Edison Park Drive) Montgomery County | 26 | 1963 | Significant | Satisfactory |
| Lake of The Pines (Tarnans Branch Crossing) Anne Arundel County | 22 | 1981 | Significant | Fair |
| Lake Nirvana Dam (Main Street) Montgomery County | 29 | 1967 | Significant | Satisfactory |
| Lake Merle Dam Frederick County | 44 | 1971 | Significant | Satisfactory |
| Lake Louise Garrett County | 21 | 1930 | Significant | Poor |
| Lake Karylbrook Community Pond (Karen Drive) Calvert County | 30 | 1990 | Significant | Fair |
| Johnsons Pond Wicomico County | 23 | 1936 | Significant | Fair |
| Johns Hopkins Bayview Campus Swm Pond Baltimore City County | 20 | 2004 | Significant | Fair |
| Jessup Prison Dam Anne Arundel County | 31 | 1982 | Significant | Fair |
| Jessup Park Dam Howard County | 15 | 2010 | Significant | Poor |
| Jennifer Road Swm Route 50 and Route 2 (Sha Bmp 020259) Anne Arundel County | 47 | 1985 | Significant | Not Rated |
| Hunters Run Swm Dam Harford County | 24 | 1996 | Significant | Satisfactory |
| Holly Hills Section 4 Swm Pond 1 Frederick County | 26 | 2001 | Significant | Satisfactory |
| Hobbits Glen Golf Course Dam Howard County | 22 | 1966 | Significant | Satisfactory |
| Heritage Glen Dam Prince George's County | 12 | 2004 | Significant | Satisfactory |
| Hall Creek Dam Cecil County | 11 | 1930 | Significant | Unsatisfactory |
| Gunners Lake (Wisteria Drive) Montgomery County | 28 | 1985 | Significant | Satisfactory |
| Guilford Road Dam Howard County | — | — | Significant | Poor |
| Greenspring Quarry Dam Baltimore County | 16 | 2007 | Significant | Fair |
| Grande View Farms Community Pond Harford County | 22 | 1969 | Significant | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.