Big Four Mine Dam

Washington County, Missouri (near FLETCHER)

River/Stream: TRIB-CALICO CREEK

High Hazard

Failure would likely cause loss of life

Key Facts

Dam Type
Other
Height
73 ft
Dam Length
1,200 ft
Reservoir Storage
1,980 acre-ft
Year Completed
1978
Primary Purpose
Tailings
Owner Type
Private
Max Discharge
245 cfs

Condition Assessment

SatisfactoryLast inspected: 2021-10-28

Hazard Classification: High — This describes the potential consequences of dam failure, not the likelihood of failure.

Condition Assessment: Satisfactory — This describes the current physical condition of the dam based on the most recent inspection.

Location

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Quick Stats

NID ID
MO30729
State
Missouri (MO)
Coordinates
38.15493, -90.77007
Age
48 years

Nearby Dams

External Resources

Data sourced from the National Inventory of Dams (NID). Information may not reflect the most current status of this dam. Hazard classification reflects potential consequences of failure, not the likelihood of failure or the current condition.