Klum Lake Dam Reservoir Report

Last Updated: December 13, 2025

Located in Port Louisa, Iowa, Klum Lake Dam is a state-owned structure designed by Ducks Unlimited with a primary purpose of serving as a Fish and Wildlife Pond.


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Summary

Completed in 1980, this earth dam stands at a height of 9 feet and stretches 400 feet in length, with a storage capacity of 1468 acre-feet and a normal storage of 946 acre-feet. The dam, situated along the TR-Mississippi River, is State-regulated and inspected, ensuring its safety and compliance with regulatory standards set by the Iowa Department of Natural Resources.

Despite its low hazard potential, Klum Lake Dam poses a moderate risk level of 3 due to its location and potential impact in the event of a failure. The spillway, with a width of 30 feet, is uncontrolled, allowing for a maximum discharge of 50 cubic feet per second. With a surface area of 250 acres and draining an area of 0.62 square miles, the dam serves as a vital resource for habitat conservation and water management in the region. Water resource and climate enthusiasts will appreciate the importance of Klum Lake Dam in supporting the local ecosystem and maintaining water quality in the area.

Year Completed

1980

Dam Length

400

Dam Height

9

River Or Stream

TR-Mississippe River

Primary Dam Type

Earth

Surface Area

250

Hydraulic Height

9

Drainage Area

0.62

Nid Storage

1468

Structural Height

9

Hazard Potential

Low

Foundations

Soil

Nid Height

9
       
Seasonal Comparison

Weather Forecast

Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.