Brown Mud Lake No. 4
Key Takeaway
Brown Mud Lake No. 4 is classified as significant hazard in Arkansas. It was completed in 1975 and is 51 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 62 ft (taller than 90.1% in AR) |
| Dam Length | 2,550 ft |
| Dam Type | Earth |
| Max Storage | 1.7K acre-ft |
| Normal Storage | 1.4K acre-ft |
| Surface Area | 57 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 264 cfs |
| Year Completed | 1975 (51 years old) |
| NID ID | AR01550 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
ALCOA
Private
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High Hazard 15 ftOld Brown Mud Lake Dam
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High Hazard 47 ftFrequently Asked Questions
What is the hazard classification of Brown Mud Lake No. 4?
Brown Mud Lake No. 4 is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Brown Mud Lake No. 4?
Brown Mud Lake No. 4 is owned by ALCOA (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Brown Mud Lake No. 4 built?
Brown Mud Lake No. 4 was completed in 1975, making it 51 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 Brown Mud Lake No. 4?
Brown Mud Lake No. 4 serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Brown Mud Lake No. 4?
Brown Mud Lake No. 4 has a dam height of 62 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 Brown Mud Lake No. 4 last inspected?
Brown Mud Lake No. 4 was last inspected on June 29, 2016. Inspection dates indicate when a formal review occurred, not the results of that inspection.