Columbia Gateway Dam
Maryland — Howard County — Dorsey Run-TR
Location
| State | Maryland |
| County | Howard |
| River | Dorsey Run-TR |
| Coordinates | 39.17050, -76.80940 |
Physical Characteristics
| NID Height | 36 ft |
| Dam Height | 36 ft |
| Dam Length | 1,600 ft |
| NID Storage | 313 acre-ft |
| Max Storage | 313 acre-ft |
| Surface Area | 9 acres |
Safety Classification
| Hazard Potential | High |
| Condition Assessment | Fair |
| EAP Status | Yes |
| Last Inspection | May 2, 2024 |
| Inspection Frequency | — |
Dam Information
| Year Completed | 1972 |
| Primary Purpose | Flood Risk Reduction |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | Howard Research & Development Corporation |
| Other Name | General Electric Appliance Park East (Geape) Basin No. 3;General Electric Retention Pond |
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.