County Line Dam
Key Takeaway
County Line Dam is classified as low hazard in South Dakota. It was completed in 1945 and is 81 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 26 ft (taller than 65.2% in SD) |
| Dam Length | 950 ft |
| Dam Type | Earth |
| Max Storage | 780 acre-ft |
| Normal Storage | 660 acre-ft |
| Max Discharge | 1,890 cfs |
| Year Completed | 1945 (81 years old) |
| NID ID | SD01215 |
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
A.J. BARTA RANCH
Private
Nearby Dams
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Low Hazard 19 ftSouth Dam
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Low Hazard 25 ftHay Canyon Dam
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Low Hazard 18 ftThompson Ranch Dam
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Low Hazard 22 ftWilson Ranch Dam
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Low Hazard 24 ftBockert
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Low Hazard 23 ftEbersoll Dam
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Low Hazard 21 ftFrequently Asked Questions
What is the hazard classification of County Line Dam?
County Line 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 County Line Dam?
County Line Dam is owned by A.J. BARTA RANCH (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was County Line Dam built?
County Line Dam was completed in 1945, making it 81 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 County Line Dam?
County Line Dam serves the following purposes: Fire Protection, Stock, Or Small Fish Pond. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is County Line Dam?
County Line Dam has a dam height of 26 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.