Town Mall Swm Pond
Town Mall Swm Pond is an earth dam located in Carroll County, Maryland, built in 1985. It carries a Significant hazard potential classification and has a poor condition assessment.
About Town Mall Swm Pond
The primary purpose of Town Mall Swm Pond is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Cranberry Mall Properties Llc (private). It impounds the Offstream-longwell Run near Westminster.
The dam stands 12 feet tall and stretches 500 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 32 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1985, the structure is 41 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 11/18/2022.
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Location
| State | Maryland |
| County | Carroll |
| Nearest City | Westminster |
| River/Stream | Offstream-longwell Run |
| Coordinates | 39.58141, -76.98339 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 500 ft |
| Year Completed | 1985 (41 years old) |
Storage & Hydraulics
| NID Storage | 32 acre-ft |
| Max Storage | 32 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 296 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Cranberry Mall Properties LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 11/18/2022 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MD00507 |
| Federal ID | MD00507 |
| More Info | State Dam Safety Program |