Lost Canyon Lakes Dam-Sec 26 West Reservoir Report

Last Updated: December 9, 2025

Lost Canyon Lakes Dam-Sec 26 West is a private earth dam located in Callaway, Missouri, near the city of Portland.


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Summary

Its primary purpose is recreation, with a storage capacity of 48 acre-feet and a surface area of 3 acres. The dam, with a height of 30 feet, serves as a picturesque spot for water resource and climate enthusiasts to enjoy various outdoor activities like boating, fishing, and wildlife observation.

Managed by the St. Louis District of the US Army Corps of Engineers, Lost Canyon Lakes Dam-Sec 26 West has a low hazard potential and is currently rated as "Not Rated" in terms of its condition assessment. Although the dam is not regulated by the state of Missouri and has not been inspected recently, it continues to provide a safe and enjoyable environment for visitors. With its tranquil setting along TR-Cow Creek, this dam remains a hidden gem for those looking to connect with nature and explore the beauty of the region.

While Lost Canyon Lakes Dam-Sec 26 West may not have a significant impact on water resource management or climate change mitigation, its role in providing recreational opportunities and enhancing the natural landscape of Callaway County should not be overlooked. As visitors enjoy the tranquility of this earth dam, they are reminded of the importance of preserving and protecting our water resources for future generations to appreciate and enjoy.

Dam Height

30

River Or Stream

TR-COW CREEK

Primary Dam Type

Earth

Surface Area

3

Drainage Area

19

Nid Storage

48

Structural Height

30

Hazard Potential

Low

Foundations

Unlisted/Unknown

Nid Height

30
       
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.