Windy Hill Subwatershed Site 2-1 in Woodbury, Iowa, is a dam constructed in 1975 by the USDA NRCS for fire protection, stock, small fish pond, and flood risk reduction purposes.
Wind
Humidity
This earth dam stands at a height of 39 feet and has a length of 600 feet, creating a water storage capacity of 100 acre-feet. The dam covers a surface area of 5.8 acres and serves a drainage area of 0.49 square miles, with a spillway type classified as uncontrolled.
Managed by the local government with state regulation and inspection, the Windy Hill Subwatershed Site 2-1 is deemed to have low hazard potential and moderate risk. Located in Rolly Springs near the TR-West Fork Little Sioux River, this site plays a crucial role in water resource management and environmental conservation efforts in the region. With a focus on safety and efficient water utilization, this dam serves as a valuable asset for the community while contributing to the overall resilience of the area in the face of climate challenges.
Year Completed |
1975 |
Dam Length |
600 |
Dam Height |
39 |
River Or Stream |
TR-WEST FORK LITTLE SIOUX |
Primary Dam Type |
Earth |
Surface Area |
5.8 |
Drainage Area |
0.49 |
Nid Storage |
100 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
39 |
West Fork Ditch At Hornick
|
80cfs |
Little Sioux River At Correctionville
|
327cfs |
Missouri River At Sioux City
|
13700cfs |
Floyd River At James
|
187cfs |
Omaha Cr At Homer
|
45cfs |
Maple River At Mapleton
|
323cfs |