John Hall Dam
Key Takeaway
John Hall Dam is classified as low hazard in Missouri. It was completed in 1972 and is 54 years old. Its primary use is flood risk reduction.
Physical Details
| Dam Height | 20 ft (taller than 7.1% in MO) |
| Dam Type | Earth |
| Max Storage | 54 acre-ft |
| Normal Storage | 33 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 210 sq mi |
| Year Completed | 1972 (54 years old) |
| NID ID | MO10507 |
Safety Information
No probable loss of human life and low economic/environmental losses expected.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
JOHN HALL
Private
Nearby Dams
Marion Mendenhall
Holt, MO
Low Hazard 20 ftGeorge Fogg Dam
Holt, MO
Low Hazard 29 ftTrena Bomar Dam
Holt, MO
Low Hazard 20 ftLimpp, Earl Lake Dam
Holt, MO
High Hazard 26 ftDuane Luna Dam
Holt, MO
Low Hazard 31 ftGillis Lake Dam
Holt, MO
Low Hazard 30 ftTenney-Hall Dam -Mononame 27 Dam
Holt, MO
High Hazard 19 ftGordan Lake Dam
Holt, MO
High Hazard 31 ftFrequently Asked Questions
What is the hazard classification of John Hall Dam?
John Hall Dam is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates John Hall Dam?
John Hall Dam is owned by JOHN HALL (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was John Hall Dam built?
John Hall Dam was completed in 1972, making it 54 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 John Hall Dam?
John Hall Dam 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 John Hall Dam?
John Hall Dam has a dam height of 20 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.