Mill Picayune Watershed Site P-3, located in Shelby, Iowa, is a critical earth dam structure completed in 1993 with a primary purpose of flood risk reduction.
Wind
Humidity
This watershed site is regulated by the Iowa Department of Natural Resources and is designed by the USDA NRCS. With a dam height of 43 feet and a storage capacity of 428 acre-feet, the site covers a surface area of 8.6 acres and serves a drainage area of 3.91 square miles along the Picayune Creek.
Despite its low hazard potential, the risk assessment for Mill Picayune Watershed Site P-3 indicates a moderate level of risk (3). The condition assessment is marked as "Not Rated," suggesting a need for further evaluation. The site does not have an Emergency Action Plan (EAP) prepared, and the inspection frequency and maintenance measures are not specified. Overall, this site serves as a crucial infrastructure for flood control in the area, highlighting the importance of monitoring and ensuring its integrity for the protection of the surrounding community and environment.
Year Completed |
1993 |
Dam Length |
580 |
Dam Height |
43 |
River Or Stream |
PICAYUNE CREEK |
Primary Dam Type |
Earth |
Surface Area |
8.6 |
Drainage Area |
3.91 |
Nid Storage |
428 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
43 |
Boyer River At Logan
|
417cfs |
Soldier River At Pisgah
|
112cfs |
Little Sioux River Near Turin
|
1040cfs |
Monona-Harrison Ditch Near Turin
|
158cfs |
West Nishnabotna River At Hancock
|
154cfs |
Maple River At Mapleton
|
323cfs |