Oliver Company (lower Pond)
Oliver Company (lower Pond) is an earth dam located in Washington County, Maryland, built in 1957. It carries a Significant hazard potential classification and has a poor condition assessment.
About Oliver Company (lower Pond)
The primary purpose of Oliver Company (lower Pond) is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Mangum, Jeffrey & Sheila (private). It impounds the Offstream-dry Run near Dry Run.
The dam stands 18 feet tall and stretches 1,060 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 12 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1957, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 12/17/2024.
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Location
| State | Maryland |
| County | Washington |
| Nearest City | Dry Run |
| River/Stream | Offstream-dry Run |
| Coordinates | 39.71987, -77.89635 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 14 ft |
| Dam Length | 1,060 ft |
| Year Completed | 1957 (69 years old) |
Storage & Hydraulics
| NID Storage | 12 acre-ft |
| Max Storage | 12 acre-ft |
| Normal Storage | 7 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 50 cfs |
| Spillway Type | None |
Ownership & Safety
| Purpose | Recreation |
| Owner | Mangum, Jeffrey & Sheila |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 12/17/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MD00188 |
| Federal ID | MD00188 |
| More Info | State Dam Safety Program |