The Mill Picayune Watershed Site M-22-1 in Shelby, Iowa is a vital earth dam constructed in 1978 by the USDA NRCS with a primary purpose of fire protection, stock, and small fish pond management.
Wind
Humidity
This dam stands at a height of 34 feet and spans a length of 550 feet, providing a storage capacity of 233 acre-feet and covering a surface area of 11 acres. The watershed site is regulated by the Iowa DNR and falls under state jurisdiction for permitting, inspection, and enforcement, ensuring its functionality for flood risk reduction in the region.
Located along the TR-Mill Creek, this dam has a low hazard potential and is rated as not assessed in terms of condition. Despite being classified as having a moderate risk level, the Mill Picayune Watershed Site M-22-1 serves as a crucial infrastructure for water resource management in the area. With a drainage area of 0.63 square miles, this dam plays a key role in maintaining water levels and controlling flood risks, contributing to the overall resilience of the local ecosystem and community. Climate and water resource enthusiasts can appreciate the importance of this structure in safeguarding the environment and supporting sustainable development in the region.
Year Completed |
1978 |
Dam Length |
550 |
Dam Height |
34 |
River Or Stream |
TR-MILL CREEK |
Primary Dam Type |
Earth |
Surface Area |
11 |
Drainage Area |
0.63 |
Nid Storage |
233 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
34 |
Boyer River At Logan
|
417cfs |
Soldier River At Pisgah
|
112cfs |
Little Sioux River Near Turin
|
1040cfs |
Monona-Harrison Ditch Near Turin
|
158cfs |
Maple River At Mapleton
|
323cfs |
West Nishnabotna River At Hancock
|
154cfs |