Weber Creek Subwatershed Site M-11136 Reservoir Report
Last Updated: December 14, 2025
Located in Woodbury County, Iowa, the Weber Creek Subwatershed Site M-11136 is a key water resource managed by the local government and regulated by the Iowa Department of Natural Resources.
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Summary
Constructed in 1955 by the USDA NRCS, this earth dam serves multiple purposes including fire protection, stock maintenance, and small fish pond management, as well as flood risk reduction for the surrounding area. With a dam height of 27 feet and a storage capacity of 43 acre-feet, the site covers a surface area of 1.9 acres and drains a 1.65 square mile watershed.
Despite being classified with a low hazard potential and a moderate risk assessment, the condition of the dam at Weber Creek Subwatershed Site M-11136 is currently not rated. This site, located along TR-Wolf Creek near the Missouri River, lacks recent inspection data and emergency preparedness measures. While the dam has a spillway for uncontrolled overflow, its overall risk management measures and guidelines compliance remain unclear. As an essential structure for both water management and environmental protection, further assessment and upkeep of the Weber Creek Subwatershed Site M-11136 are crucial for ensuring its continued effectiveness and safety in the face of potential climate challenges.
Year Completed |
1955 |
Dam Length |
300 |
Dam Height |
27 |
River Or Stream |
TR-WOLF CREEK |
Primary Dam Type |
Earth |
Surface Area |
1.9 |
Drainage Area |
1.65 |
Nid Storage |
43 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
27 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
West Fork Ditch At Hornick
|
80cfs |
Maple River At Mapleton
|
323cfs |
Monona-Harrison Ditch Near Turin
|
158cfs |
Little Sioux River Near Turin
|
1040cfs |
Little Sioux River At Correctionville
|
327cfs |
Missouri River At Decatur
|
15500cfs |
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.
Weber Creek Subwatershed Site M-11136