Mt. Pleasant - Pleasant Creek (Upper) Reservoir Report

Last Updated: December 5, 2025

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Summary

Pleasant - Pleasant Creek (Upper) is a local government-owned dam located in Sanpete, Utah, with a primary purpose of flood risk reduction. Designed by the USDA NRCS, this earth dam has a hydraulic height of 10 feet and a structural height of 20 feet, spanning a length of 2100 feet across Pleasant Creek. With a drainage area of 16.1 square miles, this dam plays a crucial role in managing water flow and protecting the surrounding area from potential flooding.

Managed by the Utah Division of Water Rights, Mt. Pleasant - Pleasant Creek (Upper) is regulated, permitted, inspected, and enforced by state agencies to ensure its safe operation. Despite being rated as having a significant hazard potential, the condition assessment of this dam is currently not rated. The last inspection took place in June 2020, with inspections conducted every 3 years to maintain the dam's integrity and safety standards. As a key flood risk reduction infrastructure in the region, this dam serves an essential role in water resource management and climate resilience efforts in the area.

For water resource and climate enthusiasts, Mt. Pleasant - Pleasant Creek (Upper) presents an intriguing case study of local government-led flood risk reduction efforts in Utah. With its strategic location on Pleasant Creek and its significant hazard potential, this earth dam underscores the importance of proactive dam maintenance and regulatory oversight to safeguard communities from potential water-related disasters. As climate change continues to impact hydrological patterns, dams like Mt. Pleasant - Pleasant Creek (Upper) will play a crucial role in adapting to and mitigating the risks associated with extreme weather events, making it a fascinating subject for those interested in water resource management and climate resilience.

Dam Length

2100

River Or Stream

PLEASANT CREEK

Primary Dam Type

Earth

Hydraulic Height

10

Drainage Area

16.1

Structural Height

20

Hazard Potential

Significant

Nid Height

20
       
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.