Masonville Dmcf
Masonville Dmcf is an earth dam located in Baltimore City, Maryland. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Masonville Dmcf
The primary purpose of Masonville Dmcf is tailings. Tailings dams contain waste material from mining operations — typically a slurry of finely ground rock left over after valuable minerals have been extracted. These structures require ongoing monitoring because tailings can contain heavy metals and other contaminants. The dam is owned by Mdot Maryland Port Administration (state). It impounds the Patapsco River-os near Brooklyn Park.
The dam stands 18 feet tall and stretches 8,400 feet across, creates a reservoir covering 100 acres, has a maximum storage capacity of 4,000 acre-feet, and collects water from a drainage area of 0 square miles.
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 11/12/2024.
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Location
| State | Maryland |
| County | Baltimore City |
| Nearest City | Brooklyn Park |
| River/Stream | Patapsco River-os |
| Coordinates | 39.25203, -76.58699 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 18 ft |
| Dam Height | 18 ft |
| Dam Length | 8,400 ft |
Storage & Hydraulics
| NID Storage | 4,000 acre-ft |
| Max Storage | 4,000 acre-ft |
| Normal Storage | 3,500 acre-ft |
| Surface Area | 100 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Tailings |
| Owner | MDOT Maryland Port Administration |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/12/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | MD00594 |
| Federal ID | MD00594 |
| More Info | State Dam Safety Program |