College Corner Subwatershed Site 3-1 Reservoir Report
Last Updated: December 14, 2025
College Corner Subwatershed Site 3-1, located in Woodbury, Iowa, is a crucial water resource managed by the local government for purposes including fire protection, stock, small fish pond maintenance, and flood risk reduction.
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Summary
This earth dam, completed in 1968, stands at a height of 33 feet and spans a length of 630 feet, with a maximum storage capacity of 69 acre-feet. Situated on TR- WOLF CREEK in the MISSOURI RIVER city area, this site plays a vital role in water management for the region.
Managed by the USDA NRCS and regulated by the Iowa DNR, the dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. With a drainage area of 0.29 square miles and a surface area of 2 acres, this site serves as a critical component in the overall water infrastructure of the region. Despite its moderate risk level, the dam at College Corner Subwatershed Site 3-1 remains an essential asset for water resource and climate enthusiasts alike, highlighting the importance of sustainable water management practices in the face of changing environmental conditions.
As a part of the Omaha District, this site stands as a testament to the collaborative efforts between federal and state agencies in ensuring the safety and functionality of water infrastructure. With its primary purpose of fire protection and flood risk reduction, College Corner Subwatershed Site 3-1 serves as a key example of how strategic dam construction can address multiple water management needs while also mitigating potential risks for nearby communities. For those passionate about water resource management and climate resilience, this site offers valuable insights into the intersection of infrastructure development, environmental protection, and community safety.
Year Completed |
1968 |
Dam Length |
630 |
Dam Height |
33 |
River Or Stream |
TR- WOLF CREEK |
Primary Dam Type |
Earth |
Surface Area |
2 |
Drainage Area |
0.29 |
Nid Storage |
69 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
33 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
West Fork Ditch At Hornick
|
80cfs |
Maple River At Mapleton
|
323cfs |
Little Sioux River At Correctionville
|
327cfs |
Monona-Harrison Ditch Near Turin
|
158cfs |
Little Sioux River Near Turin
|
1040cfs |
Missouri River At Decatur
|
14900cfs |
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.
College Corner Subwatershed Site 3-1