Keyser Wetland Dam Reservoir Report
Nearby: Garst Supply Dam Garst Dam
Last Updated: December 13, 2025
Keyser Wetland Dam, located in Carroll County, Iowa, was completed in 1995 by the NRCS and is owned by the local government.
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Summary
The dam, with a height of 7 feet and a length of 95 feet, serves primarily for other purposes and is classified as an Earth dam with a soil foundation. It is situated on TR-Willow Creek and has a storage capacity of 88 acre-feet, with a normal storage level of 33 acre-feet and a surface area of 150 acres.
Although the dam has a low hazard potential, its risk assessment is rated as moderate. The dam is regulated, permitted, inspected, and enforced by the Iowa Department of Natural Resources. The spillway type is uncontrolled, and there are no outlet gates or associated structures. The dam's condition assessment is currently not rated, with no information available on emergency action plans or inundation maps. Despite its low hazard potential, the dam's risk management measures and risk characterization summary are not specified in the data provided.
Year Completed |
1995 |
Dam Length |
95 |
Dam Height |
7 |
River Or Stream |
TR- WILLOW CREEK |
Primary Dam Type |
Earth |
Surface Area |
150 |
Drainage Area |
0.13 |
Nid Storage |
88 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
7 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
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.
Keyser Wetland Dam