The Mill Picayune Watershed Site P-79-3 in Shelby County, Iowa, is a local government-owned Earth dam completed in 1993 for fire protection, stock, and small fish pond purposes.
Wind
Humidity
This dam spans 905 feet in length, with a height of 33 feet and a storage capacity of 344 acre-feet. Situated on the TR- Picayune Creek, this structure covers a drainage area of 1.32 square miles and has a spillway type classified as uncontrolled.
Managed by the USDA NRCS and regulated by the Iowa DNR, this low-hazard dam has a moderate risk assessment rating of 3. Although the condition assessment is not rated, the dam has not been inspected recently, and emergency action plans and inundation maps are not currently prepared. Despite these shortcomings, the Mill Picayune Watershed Site P-79-3 serves its intended purposes effectively and contributes to flood risk reduction in the area. For water resource and climate enthusiasts, this site offers an intriguing case study in dam infrastructure management and the importance of regular inspection and maintenance protocols.
Year Completed |
1993 |
Dam Length |
905 |
Dam Height |
33 |
River Or Stream |
TR- PICAYUNE CREEK |
Primary Dam Type |
Earth |
Surface Area |
11.5 |
Drainage Area |
1.32 |
Nid Storage |
344 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
33 |
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 |