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 107
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Gerwig Lane Swm Howard County | — | 1980 | High | Satisfactory |
| Fullerton Reservoir Tanks Baltimore County | 15 | 2020 | High | Satisfactory |
| Frostburg Reservoir Garrett County | 46 | 1990 | High | Poor |
| Fishing Creek Dam Frederick County | 58 | 1925 | High | Unsatisfactory |
| Fedex Field Pond No. 1 Prince George's County | 35 | 1997 | High | Fair |
| Falls Road Golf Course Montgomery County | 25 | 1990 | High | Satisfactory |
| Fairfield East Dam Montgomery County | 18 | 2004 | High | Fair |
| Emmitsburg Dam Frederick County | 30 | 1950 | High | Fair |
| Dry Run Detention Dam and Culvert Allegany County | 16 | 1949 | High | Poor |
| Druid Hill Lake Reservoir and Storage Tanks Baltimore City County | 118 | 1871 | High | Poor |
| Deep Creek Dam Garrett County | 85 | 1925 | High | Fair |
| Crabbs Branch Swm Facility (Redland Road) Montgomery County | 27 | 1983 | High | Satisfactory |
| Cox Creek Dmcf Anne Arundel County | 36 | 1960 | High | Satisfactory |
| Coulbourn Mill Dam (South Division Street) Wicomico County | 12 | 1947 | High | Poor |
| Cosca Regional Park Dam Prince George's County | 28 | 1970 | High | Fair |
| Contee Main Settling Pond Prince George's County | 41 | 1973 | High | Unsatisfactory |
| Conowingo Cecil County | 94 | 1928 | High | Satisfactory |
| Columbia Gateway Dam Howard County | 36 | 1972 | High | Fair |
| Collington Facility 9 Dam (Dunwood Crossing Dr) Prince George's County | 21 | 1990 | High | Satisfactory |
| Chesapeake Ranch Estates Dam (Chisolm Trail) Calvert County | 46 | 1965 | High | Fair |
| Centennial Park Dam Howard County | 42 | 1985 | High | Satisfactory |
| Catonsville Community Park Regional Swm Pond Dam (Ba-359) Baltimore County | 21 | 1985 | High | Fair |
| Cash Lake Dam Prince George's County | 20 | 1939 | High | Fair |
| Broad Creek Dam Harford County | 36 | 1948 | High | Fair |
| Brighton Montgomery County | 82 | 1943 | High | Satisfactory |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.