Three Mile Creek Watershed Site 42 in Union, Iowa, is a water resource managed by the local government with oversight from the Iowa DNR.
Wind
Humidity
This site, designed by USDA NRCS, serves multiple purposes including flood risk reduction. The primary dam type is earth with a height of 35 feet and a length of 504 feet, completed in 1970 to store a maximum of 91 acre-feet of water for a drainage area of 0.12 square miles.
Located in Talmage along TR-Three Mile Creek, this low hazard potential dam has a moderate risk assessment rating. While not currently rated for condition assessment, the site has not been subject to inspection or maintenance updates. Despite these challenges, the watershed site provides crucial flood mitigation and water storage capabilities for the surrounding area. For water resource and climate enthusiasts, Three Mile Creek Watershed Site 42 offers a unique case study in local government water management and the challenges of maintaining aging infrastructure in the face of changing climate conditions.
Year Completed |
1970 |
Dam Length |
504 |
Dam Height |
35 |
River Or Stream |
TR-THREE MILE CREEK |
Primary Dam Type |
Earth |
Surface Area |
6.6 |
Drainage Area |
0.12 |
Nid Storage |
91 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
35 |
Raccoon River At Van Meter
|
1640cfs |
South Raccoon River At Redfield
|
268cfs |
Raccoon River Near West Des Moines
|
1300cfs |
East Fork 102 River At Bedford
|
1cfs |
Thompson River At Davis City
|
22cfs |
North River Near Norwalk
|
48cfs |