Munson Wrp Dam Reservoir Report

Last Updated: December 7, 2025

Munson Wrp Dam, located in Estherville, Iowa, is a state-owned structure designed by Iowa DNR for the primary purpose of creating a Fish and Wildlife Pond.


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Summary

Completed in 2011, this Earth-type dam stands at a height of 11 feet and spans a length of 2390 feet. The dam has a storage capacity of 115 acre-feet, with a normal storage level of 41 acre-feet, serving a drainage area of 0.77 square miles.

Situated along the TR-Drainage Ditch 23, Munson Wrp Dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. The dam features a spillway width of 30 feet and does not have any outlet gates. With a maximum discharge capacity of 100 cubic feet per second, this dam plays a crucial role in managing water resources and supporting the local ecosystem. Despite not being federally owned or funded, Munson Wrp Dam is regulated, permitted, inspected, and enforced by the Iowa Department of Natural Resources.

Water resource and climate enthusiasts can appreciate the significance of Munson Wrp Dam in maintaining a sustainable environment for fish and wildlife in Dickinson County, Iowa. The dam's construction and operation align with state regulations and guidelines, ensuring the safety and efficiency of the structure for years to come. As a key component in the local water management system, Munson Wrp Dam showcases the importance of responsible dam infrastructure in preserving natural habitats and supporting ecological diversity in the region.

Year Completed

2011

Dam Length

2390

Dam Height

11

River Or Stream

TR-Drainage Ditch 23

Primary Dam Type

Earth

Surface Area

18

Drainage Area

0.77

Nid Storage

115

Outlet Gates

None

Hazard Potential

Low

Foundations

Soil

Nid Height

11
       
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.