Deiber & Shook Dam Reservoir Report
Last Updated: December 13, 2025
The Deiber & Shook Dam, located in Crawford County, Iowa, was completed in 1971 and serves multiple purposes including fire protection and providing water for stock or small fish ponds.
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Summary
Designed by the USDA NRCS, this private dam is regulated by the Iowa DNR and has a low hazard potential. With a height of 31 feet and a length of 450 feet, the dam has a storage capacity of 54 acre-feet and covers a surface area of 3 acres.
Situated on the TR-WILLOW CREEK, the Deiber & Shook Dam plays a crucial role in managing water resources in the area, with a drainage area of 0.24 square miles. While the dam's spillway is uncontrolled, its risk assessment is classified as moderate. Although the dam's condition has not been rated, it is inspected, permitted, and regulated by the state, ensuring its ongoing safety and functionality. For water resource and climate enthusiasts, this dam represents a vital piece of infrastructure that contributes to the local ecosystem and supports various water-related activities.
Overall, the Deiber & Shook Dam stands as a testament to effective water resource management in Iowa. With its strategic location, multiple purposes, and regulated status, this dam plays a key role in maintaining water levels, protecting against fire, and providing essential resources for livestock and fish. As a privately owned structure with state oversight, it exemplifies the importance of collaboration between government agencies and private entities in safeguarding water resources and adapting to climate challenges.
Year Completed |
1971 |
Dam Length |
450 |
Dam Height |
31 |
River Or Stream |
TR-WILLOW CREEK |
Primary Dam Type |
Earth |
Surface Area |
3 |
Drainage Area |
0.24 |
Nid Storage |
54 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
31 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Maple River At Mapleton
|
323cfs |
Little Sioux River Near Turin
|
1040cfs |
Soldier River At Pisgah
|
112cfs |
Monona-Harrison Ditch Near Turin
|
158cfs |
Boyer River At Logan
|
417cfs |
North Raccoon River Near Sac City
|
312cfs |
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.
Deiber & Shook Dam