Twelve Mile Creek Watershed Site 36
Key Takeaway
Twelve Mile Creek Watershed Site 36 is classified as low hazard in Iowa. It was completed in 2003 and is 23 years old. Its primary use is grade stabilization.
Physical Details
| Dam Height | 31 ft (taller than 53.8% in IA) |
| Dam Length | 550 ft |
| Dam Type | Earth |
| Max Storage | 215 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 8 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 2003 (23 years old) |
| NID ID | IA03506 |
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 D-35
Union, IA
Low Hazard 38 ftTwelve Mile Creek Watershed Site 40-1
Union, IA
Low Hazard 33 ftTwelve Mile Creek Watershed Site D-41-A-5
Union, IA
Low Hazard 36 ftTwelve Mile Creek Watershed Site 35-2
Union, IA
Low Hazard 30 ftTwelve Mile Creek Watershed Site D-41a4
Union, IA
Low Hazard 32 ftHayes Cattle Company Dam
Union, IA
Low Hazard 29 ftTwelvemile Creek Watershed Site D-41-A2
Union, IA
Low Hazard 38 ftTwelve Mile Creek Watershed Site D-41-A-3
Union, IA
Low Hazard 33 ftFrequently Asked Questions
What is the hazard classification of Twelve Mile Creek Watershed Site 36?
Twelve Mile Creek Watershed Site 36 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 36?
Twelve Mile Creek Watershed Site 36 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 36 built?
Twelve Mile Creek Watershed Site 36 was completed in 2003, making it 23 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 36?
Twelve Mile Creek Watershed Site 36 serves the following purposes: Grade Stabilization. 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 36?
Twelve Mile Creek Watershed Site 36 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.