Orient Lake Dam
Key Takeaway
Orient Lake Dam is classified as significant hazard in Iowa. It was completed in 1969 and is 57 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 23 ft (taller than 13.3% in IA) |
| Dam Length | 867 ft |
| Dam Type | Earth |
| Max Storage | 398 acre-ft |
| Normal Storage | 135 acre-ft |
| Surface Area | 23 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1969 (57 years old) |
| NID ID | IA00033 |
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
City of Orient
Local Government
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Low Hazard 20 ftFrequently Asked Questions
What is the hazard classification of Orient Lake Dam?
Orient Lake 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 Orient Lake Dam?
Orient Lake Dam is owned by City of Orient (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Orient Lake Dam built?
Orient Lake Dam 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 Orient Lake Dam?
Orient Lake Dam serves the following purposes: Water Supply, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Orient Lake Dam?
Orient Lake Dam has a dam height of 23 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 Orient Lake Dam last inspected?
Orient Lake Dam was last inspected on June 27, 2017. Inspection dates indicate when a formal review occurred, not the results of that inspection.