Pony Creek Watershed Site 30, located in Mills County, Iowa, is a flood risk reduction structure designed by the USDA NRCS in 1964.
Wind
Humidity
This earth dam stands at 49 feet tall and spans 639 feet, providing a storage capacity of 528 acre-feet and serving a drainage area of 2.5 square miles along the TR-Pony Creek. The dam's primary purpose is flood risk reduction, with additional benefits including fire protection, stock, or small fish pond support.
Managed by the Iowa Department of Natural Resources, Pony Creek Watershed Site 30 is regulated, permitted, inspected, and enforced by state authorities. The dam's condition was assessed as satisfactory during the last inspection in July 2016, with a significant hazard potential and a moderate risk level. Despite its uncontrolled spillway type and limited discharge capacity, the structure's risk management measures and emergency action plan status are currently unspecified.
With a location in Pacific Junction and oversight by local government, Pony Creek Watershed Site 30 is a critical infrastructure contributing to water resource management in the area. Enthusiasts interested in water conservation, climate resilience, and flood control efforts can appreciate the significance of this dam in protecting the community and surrounding environment from potential water-related hazards.
Year Completed |
1964 |
Dam Length |
639 |
Dam Height |
49 |
River Or Stream |
TR-PONY CREEK |
Primary Dam Type |
Earth |
Surface Area |
19.3 |
Drainage Area |
2.5 |
Nid Storage |
528 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
49 |
Missouri River At Omaha
|
17500cfs |
West Nishnabotna River At Randolph
|
508cfs |
Weeping Water Creek At Union
|
20cfs |
Platte R At Louisville Ne
|
4750cfs |
Big Papillion Cr
|
38cfs |
Missouri River At Nebraska City
|
23700cfs |
| Location | Reservations | Toilets |
|---|---|---|
Pony Creek Co Park
|
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Glenwood Lake Park
|
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FAMCamp
|
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Offutt AFB Military
|
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Haworth City Park - Bellevue
|
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Camp Wakonda
|