| Atkisson Dam | Harford, MD | 3.1 miles | SE |
| Edgewater Village Dam | Harford, MD | 6.6 miles | SE |
| Campus Hills Pond Dam | Harford, MD | 7 miles | NE |
| Priestford Hills Dam | Harford, MD | 8.1 miles | NE |
| Loch Raven Dam | Baltimore, MD | 9.8 miles | SW |
| Briar Ridge Farm Pond Dam | Harford, MD | 10.1 miles | NW |
| Little Deer Creek Watershed Site Number 1 Dam | Harford, MD | 10.4 miles | NW |
| Little Deer Creek Watershed Site Number 3 Dam | Harford, MD | 11 miles | NW |
| Rock Ridge Pond Dam | Harford, MD | 11.4 miles | NE |
| Broad Creek Dam | Harford, MD | 14.5 miles | NE |
| Conowingo Dam | Cecil, MD | 15.7 miles | NE |
| Montebello Waste Water Lake Dam | Baltimore (city), MD | 15.7 miles | SW |
| Lake Montebello Dam | Baltimore (city), MD | 16 miles | SW |
| Lake Roland Dam | Baltimore (city), MD | 16.2 miles | SW |
| Guilford Reservoir Dam | Baltimore (city), MD | 16.4 miles | SW |
| Rock Run Dam | York, PA | 18.7 miles | NE |
| Prettyboy Dam | Baltimore, MD | 18.9 miles | NW |
| Prettyboy Dam | Baltimore, MD | 18.9 miles | NW |
| Druid Hill Lake Dam | Baltimore (city), MD | 19.1 miles | SW |
| Octoraro Lakes Dam | Cecil, MD | 19.4 miles | NE |
| Stancills Inc Settling Pond Dam | Cecil, MD | 19.4 miles | NE |
| Pecks Branch Dam | Baltimore (city), MD | 19.7 miles | SW |
| Lake Ashburton Dam | Baltimore (city), MD | 19.7 miles | SW |
| Pikesville Reservoir Dam | Baltimore, MD | 20.1 miles | SW |
| Mason-Dixon Sand and Gravel Company of Pennsylvania Dam | Cecil, MD | 20.1 miles | NE |
| Mason Dixon Original Settling Pond Dam | Cecil, MD | 20.5 miles | NE |
| Mason-Dixon Settling Pond Number One Dam | Cecil, MD | 20.8 miles | NE |
| Watts Farm Pond Dam | Kent, MD | 20.9 miles | SE |
| Mason-Dixon Settling Pond Number Two Dam | Cecil, MD | 21.1 miles | NE |
| Mason-Dixon Settling Pond Number Three Dam | Cecil, MD | 21.1 miles | NE |
| Mason-Dixon Settling Pond Number Four Dam | Cecil, MD | 21.1 miles | NE |
| Mason-Dixon Settling Pond Number Five Dam | Cecil, MD | 21.1 miles | NE |
| Grove Point Disposal Area Dam | Cecil, MD | 21.2 miles | SE |
| Fairlee Lake Dam | Kent, MD | 21.2 miles | SE |
| Mason-Dixon Settling Pond Number Six Dam | Cecil, MD | 21.3 miles | NE |
| Rising Sun Waste Water Lagoon Dam | Cecil, MD | 21.5 miles | NE |
| Pearce Creek Disposal Area Dam | Cecil, MD | 22.1 miles | SE |
| Holtwood Dam | Lancaster, PA | 22.5 miles | NE |
| Elgin Farm Pond Dam | Kent, MD | 23.1 miles | SE |
| Carpenter Farm Pond Dam | Kent, MD | 23.8 miles | SE |
| Clear Spring Water Reservoir Dam | Baltimore, MD | 24.1 miles | SW |
| Panagopulos Farm Pond Dam | Cecil, MD | 24.2 miles | SE |
| Muddy Run Recreation Dam | Lancaster, PA | 24.2 miles | NE |
| Morgan Creek Branch Dam | Kent, MD | 24.3 miles | SE |
| Saint Pauls Millpond Dam | Kent, MD | 24.8 miles | SE |
| Black and Decker Stormwater Pond Dam | Carroll, MD | 25.3 miles | NW |
| Union Dam | Baltimore, MD | 25.5 miles | SW |
| Black and Decker Manufacturing Company Dam | Carroll, MD | 25.6 miles | NW |
| Union Dam | Howard, MD | 25.6 miles | SW |
| Chestertown Stablization Pond Number Two Dam | Kent, MD | 26.5 miles | SE |
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