Greenbriar Dam
Key Takeaway
Greenbriar Dam is classified as significant hazard in Iowa. It was completed in 1972 and is 54 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 52 ft (taller than 96.6% in IA) |
| Dam Length | 650 ft |
| Dam Type | Earth |
| Max Storage | 440 acre-ft |
| Normal Storage | 245 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1972 (54 years old) |
| Year Modified | 1981 |
| NID ID | IA00296 |
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
Greenbrier Estate Lot Owners Assn
Private
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What is the hazard classification of Greenbriar Dam?
Greenbriar Dam 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 Greenbriar Dam?
Greenbriar Dam is owned by Greenbrier Estate Lot Owners Assn (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Greenbriar Dam built?
Greenbriar Dam was completed in 1972, making it 54 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 Greenbriar Dam?
Greenbriar Dam serves the following purposes: Other, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Greenbriar Dam?
Greenbriar Dam has a dam height of 52 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 Greenbriar Dam last inspected?
Greenbriar Dam was last inspected on June 12, 2019. Inspection dates indicate when a formal review occurred, not the results of that inspection.