Windy Hill Subwatershed Site 5-1, located in Woodbury County, Iowa, is a vital water resource managed by the local government for fire protection, livestock, and small fish pond purposes.
Wind
Humidity
This earth dam, completed in 1975, stands at 36 feet high and spans 650 feet in length, with a storage capacity of 81 acre-feet. Situated along the TR-Little Sioux River-W Fork, this dam plays a crucial role in flood risk reduction for the surrounding area.
Managed by the USDA NRCS and regulated by the Iowa DNR, this dam is inspected, permitted, and enforced by state authorities to ensure its structural integrity and functionality. With a low hazard potential and a moderate risk assessment rating, Windy Hill Subwatershed Site 5-1 is a key component of the local water management infrastructure, providing both environmental and public safety benefits. Despite not being currently rated for condition assessment, this dam remains a critical asset in the region's water resource and climate resilience efforts.
Year Completed |
1975 |
Dam Length |
650 |
Dam Height |
36 |
River Or Stream |
TR-LITTLE SIOUX RIVER-W FORK |
Primary Dam Type |
Earth |
Surface Area |
5 |
Drainage Area |
0.23 |
Nid Storage |
81 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
36 |
West Fork Ditch At Hornick
|
80cfs |
Floyd River At James
|
187cfs |
Missouri River At Sioux City
|
15100cfs |
Little Sioux River At Correctionville
|
327cfs |
Omaha Cr At Homer
|
45cfs |
Maple River At Mapleton
|
323cfs |