Meredith Reservoir Report

Last Updated: December 5, 2025

Meredith is a privately owned irrigation dam located in Monarch, Wyoming, on the Slater Creek offstream.


°F

°F

mph

Wind

%

Humidity

Summary

Completed in 1912, this earth dam stands at a height of 29 feet, with a hydraulic height of 24 feet and a length of 510 feet. It has a storage capacity of 104 acre-feet, with a normal storage level of 74 acre-feet. The dam is primarily used for irrigation purposes and is regulated by the Wyoming State Engineer's Office.

Despite being classified as having a low hazard potential and fair condition assessment, Meredith poses a moderate risk level according to the data. The dam features an uncontrolled spillway with a width of 30 feet and a single outlet valve. Inspections are conducted every 5 years, with the last assessment taking place in September 2021. The dam is situated in Congressional District 00, Wyoming, represented by Liz Cheney (R).

Water resource and climate enthusiasts will find Meredith to be a historic and functional piece of infrastructure that plays a crucial role in the local irrigation system. Its location in Sheridan County, Wyoming, highlights the importance of sustainable water management practices in a region where water resources are essential for agricultural activities. The data provided offers insight into the dam's design and operational aspects, shedding light on its significance within the broader context of water resource management in the area.

Year Completed

1912

Dam Length

510

Dam Height

29

River Or Stream

SLATER CK OFFSTREAM

Primary Dam Type

Earth

Surface Area

7

Hydraulic Height

24

Nid Storage

104

Structural Height

29

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

29
       
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.