Total Station Reservoir Report

Nearby: Ring Anna

Last Updated: December 13, 2025

Total Station is a private-owned structure located in Johnson, Wyoming, along the Cornerstone Draw river.


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Summary

Built in 2007 by designer Hugh Lowham, this Earth dam serves as a Fish and Wildlife Pond with a storage capacity of 53.6 acre-feet. With a height of 33 feet and a length of 655 feet, Total Station provides fire protection and water for livestock, while also supporting small fish populations.

Despite its low hazard potential, Total Station is in poor condition and requires attention to ensure its continued functionality. The dam has a moderate risk assessment rating and has been inspected every five years, with the last assessment taking place in October 2017. Its spillway type is uncontrolled, with a width of 40 feet, and it is equipped with one valve outlet gate.

Given its importance for wildlife and water storage, efforts should be made to improve Total Station's condition and mitigate any potential risks associated with its operation. Regular inspections and maintenance are essential to ensure the safety and effectiveness of this vital water resource infrastructure in Wyoming.

Year Completed

2007

Dam Length

655

Dam Height

33

River Or Stream

CORNERSTONE DRAW

Primary Dam Type

Earth

Surface Area

3.78

Hydraulic Height

28

Drainage Area

0.05

Nid Storage

53.6

Structural Height

33

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

33
       
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.