Mill Picayune Watershed Site P-47-4 Reservoir Report
Last Updated: December 13, 2025
Mill Picayune Watershed Site P-47-4 is a vital water resource located in Woodbine, Iowa, within the Shelby County region.
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Summary
Managed by the local government, this site was designed by the USDA NRCS and completed in 1978 for purposes including fire protection, stock, small fish pond, and flood risk reduction. The dam at this site is classified as an Earth dam, with a height of 47 feet and a length of 700 feet, providing a storage capacity of 313 acre-feet.
With a low hazard potential and a moderate risk assessment rating, Mill Picayune Watershed Site P-47-4 plays a crucial role in water management and conservation efforts in the area. The dam serves as a key infrastructure for maintaining water levels, particularly during times of flooding and for fire protection purposes. The site is regulated and inspected by the Iowa Department of Natural Resources, ensuring that it meets safety and environmental standards for the community.
Overall, Mill Picayune Watershed Site P-47-4 serves as a valuable asset for water resource and climate enthusiasts, showcasing the importance of proper infrastructure for sustainable water management. With its strategic location and design, this site contributes to the overall resilience of the region against potential water-related hazards and supports various ecological functions. Its construction and maintenance reflect a collaborative effort between local government agencies and the USDA NRCS to safeguard water resources for current and future generations.
Year Completed |
1978 |
Dam Length |
700 |
Dam Height |
47 |
River Or Stream |
TR-PICAYUNE |
Primary Dam Type |
Earth |
Surface Area |
10 |
Drainage Area |
1.58 |
Nid Storage |
313 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
47 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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 |
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Mill Picayune Watershed Site P-47-4