Twelve Mile Creek Watershed Site 27
Key Takeaway
Twelve Mile Creek Watershed Site 27 is classified as low hazard in Iowa. It was completed in 1986 and is 40 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 31 ft (taller than 53.8% in IA) |
| Dam Length | 550 ft |
| Dam Type | Earth |
| Max Storage | 293 acre-ft |
| Normal Storage | 55 acre-ft |
| Surface Area | 10 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1986 (40 years old) |
| NID ID | IA02324 |
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 23
Union, IA
Low Hazard 33 ftTwelve Mile Creek Watershed Site 35-2
Union, IA
Low Hazard 30 ftTwelve Mile Creek Watershed Site 18
Union, IA
Low Hazard 36 ftTwelve Mile Creek Watershed Site D-35
Union, IA
Low Hazard 38 ftRidinger Dam
Union, IA
Low Hazard 27 ftTwelve Mile Creek Watershed Site 36
Union, IA
Low Hazard 31 ftHoughton Dam
Union, IA
Low Hazard 25 ftEast Fork Grand River Watershed Site A-53
Union, IA
Low Hazard 23 ftFrequently Asked Questions
What is the hazard classification of Twelve Mile Creek Watershed Site 27?
Twelve Mile Creek Watershed Site 27 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 27?
Twelve Mile Creek Watershed Site 27 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 27 built?
Twelve Mile Creek Watershed Site 27 was completed in 1986, making it 40 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 27?
Twelve Mile Creek Watershed Site 27 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 27?
Twelve Mile Creek Watershed Site 27 has a dam height of 31 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.