Bwi Pond B12
Bwi Pond B12 is an earth dam located in Anne Arundel County, Maryland, built in 1995. It carries a Significant hazard potential classification and has a poor condition assessment.
About Bwi Pond B12
The primary purpose of Bwi Pond B12 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 Bwi (state). It impounds the Sawmill Creek-tr near Glen Burnie.
The dam stands 21 feet tall and stretches 835 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 81 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1995, the structure is 31 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. An emergency action plan is in place for this dam. The most recent inspection on record was 07/09/2024.
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Location
| State | Maryland |
| County | Anne Arundel |
| Nearest City | Glen Burnie |
| River/Stream | Sawmill Creek-tr |
| Coordinates | 39.17860, -76.65330 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 21 ft |
| Dam Height | 21 ft |
| Dam Length | 835 ft |
| Year Completed | 1995 (31 years old) |
Storage & Hydraulics
| NID Storage | 81 acre-ft |
| Max Storage | 81 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 1,249 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | BWI |
| Owner Type | State |
| Hazard Classification | Significant |
| Condition Assessment | Poor |
| Last Inspection | 07/09/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MD00561 |
| Federal ID | MD00561 |
| More Info | State Dam Safety Program |