Mill Picayune Watershed Site P-4-1 in Harrison County, Iowa, is a local government-owned earth dam completed in 1994 by the USDA NRCS.
Wind
Humidity
This dam, located in Woodbine, serves multiple purposes including fire protection, stock watering, small fish pond management, and flood risk reduction. With a height of 29 feet and a storage capacity of 125 acre-feet, the dam covers a surface area of 7.8 acres and drains a watershed area of 0.47 square miles along the TR- Picayune Creek.
Managed by the Iowa Department of Natural Resources, the dam has a low hazard potential and a moderate risk assessment score of 3. With uncontrolled spillways and no outlet gates, the dam's condition is currently not rated, but it undergoes state-regulated inspections, permitting, and enforcement. Situated in the Rock Island District with Congressman Steve King as the representative, this dam plays a crucial role in water resource management and climate resilience efforts in the region, highlighting the importance of sustainable infrastructure for safeguarding communities and ecosystems against natural disasters and water scarcity challenges.
Year Completed |
1994 |
Dam Length |
550 |
Dam Height |
29 |
River Or Stream |
TR- PICAYUNE CREEK |
Primary Dam Type |
Earth |
Surface Area |
7.8 |
Drainage Area |
0.47 |
Nid Storage |
125 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
29 |
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 |