West Douglas Watershed Site K-2 Reservoir Report

Last Updated: December 13, 2025

West Douglas Watershed Site K-2 is a crucial earth dam located in Villisca, Iowa, with a primary purpose of providing fire protection, stock, or small fish pond, as well as flood risk reduction.


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Summary

Built in 1968 by the USDA NRCS, this dam stands at a height of 31 feet and has a length of 409 feet, with a storage capacity of 38 acre-feet. Situated on the TR-Middle Nodaway river, this site is regulated by the Iowa DNR and is inspected, permitted, and enforced by state authorities.

With a low hazard potential and a moderate risk assessment, West Douglas Watershed Site K-2 plays a significant role in managing water resources in Adams County, Iowa. Its surface area of 3 acres and drainage area of 0.1 square miles contribute to its functionality in flood risk reduction. Despite its age, the dam's condition is not rated, suggesting a need for further assessment to ensure its long-term effectiveness in protecting the surrounding area from potential water-related disasters.

As a key component in the local water infrastructure, West Douglas Watershed Site K-2 serves as a vital resource for the community. With its strategic location and purposeful design, this dam plays a crucial role in water management, flood control, and environmental protection in the region. For water resource and climate enthusiasts, this site offers a fascinating case study in sustainable water infrastructure development and management practices.

Year Completed

1968

Dam Length

409

Dam Height

31

River Or Stream

TR-MIDDLE NODAWAY

Primary Dam Type

Earth

Surface Area

3

Drainage Area

0.1

Nid Storage

38

Hazard Potential

Low

Foundations

Soil

Nid Height

31
       
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.