Coralville Regional Detention Basin
Key Takeaway
Coralville Regional Detention Basin is classified as high hazard in Iowa. It was completed in 2001 and is 25 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 | 23 ft (taller than 13.3% in IA) |
| Dam Length | 952 ft |
| Dam Type | Earth |
| Max Storage | 137 acre-ft |
| Normal Storage | 83 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 2001 (25 years old) |
| NID ID | IA03397 |
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
City of Coralville
Local Government
Nearby Dams
North Ridge Park Dam
Johnson, IA
Low Hazard 20 ftRolling Hills Dam
Johnson, IA
Significant Hazard 20 ftValley View Heights Dam
Johnson, IA
Low Hazard 29 ftBrown Deer Golf Course Dam
Johnson, IA
Significant Hazard 46 ftCoralville Milldam
Johnson, IA
Low Hazard 13 ftDovetail Estates Dam
Johnson, IA
Significant Hazard 23 ftProgress Park Dam
Johnson, IA
Significant Hazard 23 ftOaknoll Dam
Johnson, IA
High Hazard 25 ftFrequently Asked Questions
What is the hazard classification of Coralville Regional Detention Basin?
Coralville Regional Detention Basin 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 Coralville Regional Detention Basin?
Coralville Regional Detention Basin is owned by City of Coralville (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Coralville Regional Detention Basin built?
Coralville Regional Detention Basin was completed in 2001, making it 25 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 Coralville Regional Detention Basin?
Coralville Regional Detention Basin 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 Coralville Regional Detention Basin?
Coralville Regional Detention Basin 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 Coralville Regional Detention Basin last inspected?
Coralville Regional Detention Basin was last inspected on June 30, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.