Three Mile Creek Watershed Site 33
Key Takeaway
Three Mile Creek Watershed Site 33 is classified as low hazard in Iowa. It was completed in 1976 and is 50 years old. Its primary use is fire protection.
Physical Details
| Dam Height | 36 ft (taller than 74.2% in IA) |
| Dam Length | 510 ft |
| Dam Type | Earth |
| Max Storage | 185 acre-ft |
| Normal Storage | 119 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1976 (50 years old) |
| NID ID | IA01748 |
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
Union County Roadgrade Dam 29-73-29
Union, IA
Low Hazard 39 ftThree Mile Creek Watershed Site 36
Union, IA
Low Hazard 35 ftThree Mile Reservoir Dam
Union, IA
Significant Hazard 63 ftThree Mile Creek Watershed Site 29
Union, IA
Low Hazard 33 ftThree Mile Creek Watershed Site 14-G
Union, IA
Low Hazard 31 ftThree Mile Creek Watershed Site 14-M
Union, IA
Low Hazard 25 ftThree Mile Creek Watershed Site 14-G-1
Union, IA
Low Hazard 27 ftThree Mile Lake Sediment Dam
Union, IA
Low Hazard 26 ftFrequently Asked Questions
What is the hazard classification of Three Mile Creek Watershed Site 33?
Three Mile Creek Watershed Site 33 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 Three Mile Creek Watershed Site 33?
Three Mile Creek Watershed Site 33 is owned by Union County SWCD (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Three Mile Creek Watershed Site 33 built?
Three Mile Creek Watershed Site 33 was completed in 1976, making it 50 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 Three Mile Creek Watershed Site 33?
Three Mile Creek Watershed Site 33 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 Three Mile Creek Watershed Site 33?
Three Mile Creek Watershed Site 33 has a dam height of 36 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.