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 1–25 of 425
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| York Building Products Pond No. 7 Dam Cecil County | 30 | 1971 | Low | Satisfactory |
| York Building Products Pond No. 6 Cecil County | 30 | 1971 | Low | Satisfactory |
| York Building Products Pond No. 5 Cecil County | 44 | 1971 | Low | Satisfactory |
| York Bldg Products Settling Pond 9 Cecil County | 43 | 1988 | Significant | Satisfactory |
| York Bldg Products Settling Pond 13 Cecil County | 45 | 2016 | Significant | Satisfactory |
| York Bldg Products Settling Pond 12 Cecil County | 70 | 2004 | Significant | Satisfactory |
| York Bldg Products Settling Pond 11 Cecil County | 51 | 1999 | Significant | Fair |
| York Bldg Products Settling Pond 10 Cecil County | 48 | 1991 | Significant | Fair |
| Wyndemere Swm Pond Howard County | 13 | 1995 | Significant | Satisfactory |
| Wye Mills Dam Queen Anne's County | 20 | 1682 | Significant | Fair |
| Woodmark Community Pond Howard County | 12 | 1968 | Significant | Unsatisfactory |
| Woodlawn Railroad Embankment On Basin Run Cecil County | 40 | 1940 | High | Poor |
| Windgate Swm Dam 3 (Burtons Cove Way) Anne Arundel County | 23 | 1994 | Significant | Satisfactory |
| Willson Water Treatment Plant Levee Washington County | 30 | 1927 | Significant | Fair |
| Williston Mill Dam (Md 617 Old Harmony Road) Caroline County | 18 | 1936 | Low | Satisfactory |
| Wildewood Dam On St Marys River St. Mary's County | 10 | 1989 | Low | Not Rated |
| Wildewood Community Dam St. Mary's County | 30 | 1989 | Low | Not Rated |
| Wilde Lake Dam Howard County | 28 | 1967 | Significant | Satisfactory |
| Wheaton Regional Park Dam Montgomery County | 24 | 1962 | Significant | Fair |
| Wheaton Branch Storm Water Management Montgomery County | 27 | 1979 | High | Poor |
| Westlake Village Lake 3 Charles County | 11 | 1984 | Low | Fair |
| West Farm Regional Swm Pond Montgomery County | 25 | 1987 | Significant | Satisfactory |
| Western Maryland 4h Center Garrett County | 22 | 1937 | Low | Poor |
| Watts Farm Pond Kent County | 16 | 1977 | Low | Fair |
| Waterfront Greens Community Pond Garrett County | 29 | 1986 | Low | 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.