Spinners Reservoir Report

Last Updated: December 5, 2025

Spinners is a private water resource located in Sanpete County, Utah, along the North Fork of Muddy Creek.


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Summary

Managed by the Utah Division of Water Rights, this recreational dam was completed in 1978 and stands at a structural height of 57 feet, with a hydraulic height of 52 feet. With a storage capacity of 865 acre-feet, Spinners serves as a vital water source for the surrounding area, providing both recreational opportunities and water management functions.

The dam's hazard potential is classified as significant, highlighting the importance of regular inspections and maintenance. The last inspection was conducted in August 2019, with a frequency of every 2 years. While the condition assessment is currently not rated, the dam's emergency action plan status and risk management measures are unclear. Nevertheless, Spinners remains a key infrastructure for water storage and recreation in the region, contributing to the overall water resource management efforts in Utah.

As climate change continues to impact water resources, the proper regulation and maintenance of dams like Spinners are crucial for ensuring water availability and safety. With its strategic location and significant storage capacity, Spinners plays a vital role in managing water flow and supporting recreational activities along the North Fork of Muddy Creek. As water resource enthusiasts, it is essential to stay informed about the condition and management of such key infrastructures to address the challenges posed by a changing climate.

Year Completed

1978

Dam Length

1355

River Or Stream

NORTH FORK OF MUDDY CREEK

Primary Dam Type

Earth

Hydraulic Height

52

Drainage Area

1.2

Nid Storage

865

Structural Height

57

Hazard Potential

Significant

Nid Height

57
       
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.