Intermountain Power Bottom Ash Basins Reservoir Report
Last Updated: December 5, 2025
Intermountain Power Bottom Ash Basins in Utah is a privately owned facility regulated by the Utah Division of Water Rights.
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Summary
Completed in 1983, these Earth-type basins have a structural height of 46 feet and a storage capacity of 3000 acre-feet. Located in Millard County, near the city of Delta, they are associated with the Sevier River and fall under the jurisdiction of the Sacramento District.
Despite being categorized as having a low hazard potential, the condition of Intermountain Power Bottom Ash Basins is not currently rated. The last inspection took place in May 2019, with a scheduled inspection frequency of 5 years. While the Emergency Action Plan status and risk assessment information are not provided, the facility meets state permitting, inspection, and enforcement requirements, ensuring compliance with water resource regulations and standards. For enthusiasts interested in water resource management and climate impacts, these basins offer a glimpse into the infrastructure and regulatory oversight of water storage and management systems in Utah.
Year Completed |
1983 |
River Or Stream |
SEVIER RIVER - OFFSTREAM |
Primary Dam Type |
Earth |
Nid Storage |
3000 |
Structural Height |
46 |
Hazard Potential |
Low |
Nid Height |
46 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Sevier River Near Lynndyl
|
24cfs |
Sevier River Near Juab
|
0cfs |
Vernon Creek Near Vernon
|
1cfs |
Currant Creek Near Mona
|
8cfs |
Salt Creek At Nephi
|
4cfs |
Faust Creek Near Vernon
|
0cfs |
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Intermountain Power Bottom Ash Basins