Hancock Sewage Lagoon
Hancock Sewage Lagoon is an earth dam located in Washington County, Maryland, built in 1963. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Hancock Sewage Lagoon
Hancock Sewage Lagoon is a dam in Washington, Maryland. The dam is owned by Town Of Hancock (local government). It impounds the Offstream-tonoloway Creek near Hancock.
The dam stands 8 feet tall and stretches 2,000 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 115 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1963, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 10/31/2024.
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Location
| State | Maryland |
| County | Washington |
| Nearest City | Hancock |
| River/Stream | Offstream-tonoloway Creek |
| Coordinates | 39.70500, -78.15500 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 2,000 ft |
| Year Completed | 1963 (63 years old) |
Storage & Hydraulics
| NID Storage | 115 acre-ft |
| Max Storage | 115 acre-ft |
| Normal Storage | 38 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 340 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | Town of Hancock |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/31/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MD00096 |
| Federal ID | MD00096 |
| More Info | State Dam Safety Program |