Guilford Reservoir Storage Tanks

Offstream-Stoney Run· Baltimore City, Maryland· Built 1893· Other· 35 ft tall
High Hazard Water Supply Local Government

Key Takeaway

Guilford Reservoir Storage Tanks is classified as high hazard in Maryland. It was completed in 1893 and is 133 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 35 ft (taller than 80.1% in MD)
Dam Length2,375 ft
Dam TypeOther
Max Storage134 acre-ft
Normal Storage104 acre-ft
Surface Area7 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1893 (133 years old)
Year Modified2018
NID IDMD00106

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: December 8, 2021
State Regulated: Yes
Regulatory Agency: MD Dam Safety

Ownership

Baltimore City DPW Reservoir Section

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Guilford Reservoir Storage Tanks?

Guilford Reservoir Storage Tanks is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Guilford Reservoir Storage Tanks?

Guilford Reservoir Storage Tanks is owned by Baltimore City DPW Reservoir Section (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Guilford Reservoir Storage Tanks built?

Guilford Reservoir Storage Tanks was completed in 1893, making it 133 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Guilford Reservoir Storage Tanks?

Guilford Reservoir Storage Tanks serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Guilford Reservoir Storage Tanks?

Guilford Reservoir Storage Tanks has a dam height of 35 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

When was Guilford Reservoir Storage Tanks last inspected?

Guilford Reservoir Storage Tanks was last inspected on December 8, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.