SCS Mill Creek Site-18
Key Takeaway
SCS Mill Creek Site-18 is classified as high hazard in Oklahoma. It was completed in 1969 and is 57 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 | 31 ft (taller than 63% in OK) |
| Dam Length | 1,100 ft |
| Dam Type | Earth |
| Max Storage | 377 acre-ft |
| Normal Storage | 65 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 4,641 cfs |
| Year Completed | 1969 (57 years old) |
| NID ID | OK02004 |
Safety Information
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?
Ownership
JOHNSTON COUNTY CONSERVATION DISTRICT
State Government
Nearby Dams
SCS-Mill Creek Site-17
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Low Hazard 30 ftSCS-Mill Creek Site-15
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Low Hazard 48 ftSCS-Pennington Creek Site-3
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Low Hazard 40 ftSCS-Pennington Creek Site-2
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Low Hazard 30 ftSCS-Mill Creek Site-16
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Low Hazard 23 ftTxi Storage Pond # 2
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Low Hazard 28 ftFrequently Asked Questions
What is the hazard classification of SCS Mill Creek Site-18?
SCS Mill Creek Site-18 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 SCS Mill Creek Site-18?
SCS Mill Creek Site-18 is owned by JOHNSTON COUNTY CONSERVATION DISTRICT (State Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was SCS Mill Creek Site-18 built?
SCS Mill Creek Site-18 was completed in 1969, making it 57 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 SCS Mill Creek Site-18?
SCS Mill Creek Site-18 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 SCS Mill Creek Site-18?
SCS Mill Creek Site-18 has a dam height of 31 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 SCS Mill Creek Site-18 last inspected?
SCS Mill Creek Site-18 was last inspected on December 1, 2011. Inspection dates indicate when a formal review occurred, not the results of that inspection.