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 376–400 of 425
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Tower Oaks Montgomery County | 25 | 1999 | Low | Satisfactory |
| Town Mall Swm Pond Carroll County | 12 | 1985 | Significant | Poor |
| Towson Reservoir Storage Tanks Baltimore County | 40 | 2013 | High | Satisfactory |
| Tuckahoe State Park Dam (Crouse Mill Road) Queen Anne's County | 14 | 1975 | Low | Fair |
| Turkey Branch Levee (Asset 17673,17674 and 17675) Montgomery County | 12 | 1975 | Significant | Poor |
| Twin Lakes Upper Pond (Hoile Lane) Calvert County | 15 | 1970 | Significant | Satisfactory |
| Umbc Central Campus Dam Baltimore County | 10 | 1975 | Significant | Satisfactory |
| Umbc Dam Baltimore County | 38 | 1976 | High | Satisfactory |
| Umstc Lower Dam (Curie Drive) Prince George's County | 38 | 2001 | Significant | Fair |
| Unicorn Branch Dam Queen Anne's County | 13 | 1964 | Significant | Fair |
| Upper Lake Royer Washington County | 12 | 1898 | Low | Fair |
| Upper Potomac Industrial Park Levee Allegany County | 8 | 2005 | High | Fair |
| Urbana Frederick County | 25 | 1963 | Low | Satisfactory |
| Urieville Dam (Augustine Herman Hwy) Kent County | 17 | 1955 | Low | Fair |
| Valley Mall Expansion Swm Dam Washington County | 19 | 1987 | Low | Not Rated |
| Van Dusen Road Prince George's County | 24 | 1979 | Significant | Poor |
| Velvet Hills South Swm Dam Baltimore County | 15 | 1987 | Significant | Fair |
| Victoria Station Community Lake Calvert County | 27 | 1986 | High | Fair |
| Victory Farms Montgomery County | 30 | 1973 | Low | Not Rated |
| Village of Scots Fancy Swm Pond (Starmount Lane) Harford County | 27 | 1991 | Significant | Fair |
| Vista Business Park Washington County | 13 | 2020 | High | Satisfactory |
| Volvo Hagerstown Swm Washington County | 10 | 1961 | Significant | Poor |
| Waiting Springs Swm Pond Howard County | 12 | 1971 | Significant | Satisfactory |
| Warfield Range Dam (Hunters Way) Howard County | 20 | 1980 | Significant | Satisfactory |
| Warner Gap Hollow Dam Washington County | 65 | 1902 | High | Unsatisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.