Jim Merrigan Structure Dam
Key Takeaway
Jim Merrigan Structure Dam is classified as low hazard in Missouri. It was completed in 1973 and is 53 years old. Its primary use is grade stabilization.
Physical Details
| Dam Height | 20 ft (taller than 7.1% in MO) |
| Dam Length | 600 ft |
| Dam Type | Earth |
| Max Storage | 123 acre-ft |
| Normal Storage | 73 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 166 sq mi |
| Max Discharge | 400 cfs |
| Year Completed | 1973 (53 years old) |
| NID ID | MO50403 |
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
JAMES MERRIGAN
Private
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Low Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Jim Merrigan Structure Dam?
Jim Merrigan Structure 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 Jim Merrigan Structure Dam?
Jim Merrigan Structure Dam is owned by JAMES MERRIGAN (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Jim Merrigan Structure Dam built?
Jim Merrigan Structure Dam was completed in 1973, making it 53 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 Jim Merrigan Structure Dam?
Jim Merrigan Structure Dam serves the following purposes: Grade Stabilization. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Jim Merrigan Structure Dam?
Jim Merrigan Structure 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.