Klopping Dam Reservoir Report
Last Updated: December 13, 2025
Located in Jasper County, Iowa, Klopping Dam is a private earth dam designed by the USDA NRCS and completed in 1961.
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Summary
With a height of 31 feet and a length of 341 feet, the dam serves multiple purposes including fire protection, stock containment, and as a small fish pond, showcasing its versatility in water resource management. The dam has a normal storage capacity of 32 acre-feet and is situated on TR-BENJAMIN CREEK, providing essential water resources for the surrounding area.
Managed by the Iowa Department of Natural Resources (DNR) and with low hazard potential, Klopping Dam has a moderate risk assessment rating. Despite not being rated for its condition, regular inspections by the state ensure its safety and functionality in providing water resources for the local community. With its primary purpose being fire protection, the dam plays a crucial role in safeguarding the area from potential disasters while also serving as a resource for agricultural activities and recreational purposes.
Despite its age, Klopping Dam continues to fulfill its intended purposes efficiently, with a storage capacity of 51 acre-feet and a surface area of 3 acres. While the dam lacks an emergency action plan and condition assessment, its low hazard potential and moderate risk assessment make it a reliable water resource infrastructure in the region. With the support of the Natural Resources Conservation Service and state regulatory agencies, Klopping Dam remains a vital asset for water management and climate resilience efforts in the area.
Year Completed |
1961 |
Dam Length |
341 |
Dam Height |
31 |
River Or Stream |
TR-BENJAMIN CREEK |
Primary Dam Type |
Earth |
Surface Area |
3 |
Drainage Area |
0.15 |
Nid Storage |
51 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
31 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
South Skunk River At Colfax
|
211cfs |
Indian Creek Near Mingo
|
79cfs |
Timber Creek Near Marshalltown
|
37cfs |
Iowa River At Marshalltown
|
1040cfs |
Des Moines River Near Pella
|
2080cfs |
Fourmile Creek At Des Moines
|
22cfs |
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Mariposa Co Park
|
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Kellogg RV Park
|
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Rock Creek State Park
|
Klopping Dam