Guilford Reservoir Storage Tanks
Guilford Reservoir Storage Tanks is an other dam located in Baltimore City, Maryland, built in 1893. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Guilford Reservoir Storage Tanks
The primary purpose of Guilford Reservoir Storage Tanks is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Baltimore City Dpw Reservoir Section (local government). It impounds the Offstream-stoney Run near Baltimore City.
The dam stands 35 feet tall and stretches 2,375 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 134 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1893, the structure is over a century old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 11/21/2024.
At 35 feet, this dam is taller than 82% of dams nationwide.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Maryland dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Maryland |
| County | Baltimore City |
| Nearest City | Baltimore City |
| River/Stream | Offstream-stoney Run |
| Coordinates | 39.34500, -76.61670 |
Physical Characteristics
| Dam Type | Other |
| NID Height | 35 ft |
| Dam Height | 35 ft |
| Dam Length | 2,375 ft |
| Year Completed | 1893 (133 years old) |
Storage & Hydraulics
| NID Storage | 134 acre-ft |
| Max Storage | 134 acre-ft |
| Normal Storage | 104 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Baltimore City DPW Reservoir Section |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 11/21/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | MD00106 |
| Federal ID | MD00106 |
| More Info | State Dam Safety Program |