West Peak Quarry Dam #1 Reservoir Report

Last Updated: December 5, 2025

West Peak Quarry Dam #1, located in Iron County, Missouri, is a privately owned rockfill dam designed by Shannon and Wilson Co.


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Summary

It was completed in 2001 and serves primarily for tailings storage. The dam is situated on a tributary of Big Creek and has a height of 90 feet, with a storage capacity of 2500 acre-feet.

This dam has a high hazard potential and is regulated by the Dam and Reservoir Safety Program in Missouri. It has undergone inspections, with the last assessment conducted in July 2015, reporting a satisfactory condition. While the dam has a moderate risk rating, it lacks some emergency preparedness features such as an Emergency Action Plan (EAP) and updated contact information.

Despite its satisfactory condition, the West Peak Quarry Dam #1 poses a potential risk due to its high hazard classification. It is vital for the dam's owners to prioritize the implementation of risk management measures and update emergency preparedness protocols to ensure the safety of the surrounding area in case of any unforeseen events. For water resource and climate enthusiasts, monitoring and maintaining the integrity of this dam is crucial to mitigate any potential risks associated with its operation.

Year Completed

2001

Dam Length

500

Dam Height

90

River Or Stream

TRIB. BIG CREEK

Primary Dam Type

Rockfill

Surface Area

25

Drainage Area

30

Nid Storage

2500

Structural Height

90

Outlet Gates

None

Hazard Potential

High

Foundations

Rock

Nid Height

90
       
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.