Twelve Mile Creek Watershed Site 23
Key Takeaway
Twelve Mile Creek Watershed Site 23 is classified as low hazard in Iowa. It was completed in 1988 and is 38 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 33 ft (taller than 63.3% in IA) |
| Dam Length | 125 ft |
| Dam Type | Earth |
| Max Storage | 183 acre-ft |
| Normal Storage | 55 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1988 (38 years old) |
| NID ID | IA02491 |
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
Union County SWCD
Local Government
Nearby Dams
Twelve Mile Creek Watershed Site 18
Union, IA
Low Hazard 36 ftTwelve Mile Creek Watershed Site 27
Union, IA
Low Hazard 31 ftHoughton Dam
Union, IA
Low Hazard 25 ftTwelve Mile Creek Watershed Site 35-2
Union, IA
Low Hazard 30 ftEast Fork Grand River Watershed Site A-53
Union, IA
Low Hazard 23 ftEast Fork Grand River Watershed Site A-54
Union, IA
Low Hazard 26 ftMc Guire Dam
Union, IA
Low Hazard 29 ftTwelve Mile Creek Watershed Site D-35
Union, IA
Low Hazard 38 ftFrequently Asked Questions
What is the hazard classification of Twelve Mile Creek Watershed Site 23?
Twelve Mile Creek Watershed Site 23 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 Twelve Mile Creek Watershed Site 23?
Twelve Mile Creek Watershed Site 23 is owned by Union County SWCD (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Twelve Mile Creek Watershed Site 23 built?
Twelve Mile Creek Watershed Site 23 was completed in 1988, making it 38 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 Twelve Mile Creek Watershed Site 23?
Twelve Mile Creek Watershed Site 23 serves the following purposes: Fire Protection, Stock, Or Small Fish Pond, Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Twelve Mile Creek Watershed Site 23?
Twelve Mile Creek Watershed Site 23 has a dam height of 33 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.