Wagner Dam Reservoir Report
Last Updated: December 14, 2025
Wagner Dam, located in Louisa County, Iowa, is a privately owned structure designed by NRCS and completed in 1998.
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Summary
This earth dam, with a height of 25 feet and a length of 458 feet, serves primarily for fire protection and as a small fish pond. The dam has a storage capacity of 56 acre-feet, with a normal storage level of 33 acre-feet and a surface area of 5.1 acres. Despite its low hazard potential and moderate risk assessment, the dam is not currently rated for its condition.
Operated by the private owner, Wagner Dam is regulated by the Iowa Department of Natural Resources, with state jurisdiction, permitting, inspection, and enforcement in place to ensure its safety and compliance with regulations. The dam is situated on TR-Short Creek and serves as a vital resource for water storage and management in the area, contributing to the overall ecosystem health. With its uncontrolled spillway type and low hazard potential, Wagner Dam plays a crucial role in providing fire protection and supporting local fish populations.
Year Completed |
1998 |
Dam Length |
458 |
Dam Height |
25 |
River Or Stream |
TR- SHORT CREEK |
Primary Dam Type |
Earth |
Surface Area |
5.1 |
Drainage Area |
0.14 |
Nid Storage |
56 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
Seasonal Comparison
Weather Forecast
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.
Wagner Dam