Seneca State Park Dam (Seneca Creek Road)
Maryland — Montgomery County — Long Draught Branch
Location
| State | Maryland |
| County | Montgomery |
| River | Long Draught Branch |
| Coordinates | 39.14390, -77.25790 |
Physical Characteristics
| NID Height | 64 ft |
| Dam Height | 64 ft |
| Dam Length | 580 ft |
| NID Storage | 2,792 acre-ft |
| Max Storage | 2,792 acre-ft |
| Surface Area | 90 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Poor |
| EAP Status | No |
| Last Inspection | December 19, 2024 |
| Inspection Frequency | — |
Dam Information
| Year Completed | 1975 |
| Primary Purpose | Recreation |
| Dam Type | Earth |
| Owner Type | State |
| Owner | MD DNR-Public Lands, Engineering & Constr-Southern |
| Other Name | Clopper Lake;Long Draught Lake |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.