E.Br So Fk Blackwater E-24

TR-E.BR.SO.FK.BLACKWATER· Johnson, Missouri· Built 1954· Earth· 24 ft tall
High Hazard Flood Risk Reduction Local Government

Key Takeaway

E.Br So Fk Blackwater E-24 is classified as high hazard in Missouri. It was completed in 1954 and is 72 years old. Its primary use is flood risk reduction. 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 24 ft (taller than 20.3% in MO)
Dam Length790 ft
Dam TypeEarth
Max Storage121 acre-ft
Normal Storage57 acre-ft
Surface Area5 acres
Drainage Area262 sq mi
Max Discharge233 cfs
Year Completed1954 (72 years old)
NID IDMO50228

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
State Regulated: No

Ownership

JOHNSON CO SCD

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of E.Br So Fk Blackwater E-24?

E.Br So Fk Blackwater E-24 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 E.Br So Fk Blackwater E-24?

E.Br So Fk Blackwater E-24 is owned by JOHNSON CO SCD (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was E.Br So Fk Blackwater E-24 built?

E.Br So Fk Blackwater E-24 was completed in 1954, making it 72 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 E.Br So Fk Blackwater E-24?

E.Br So Fk Blackwater E-24 serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is E.Br So Fk Blackwater E-24?

E.Br So Fk Blackwater E-24 has a dam height of 24 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.

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.