Pueblo Reservoir Near Pueblo Reservoir Report

Last Updated: December 5, 2025

Pueblo Reservoir is a man-made lake located near Pueblo, Colorado.


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Summary

It was created in the 1970s by constructing a dam across the Arkansas River. The reservoir has a capacity of 357,000 acre-feet and is an important source of water for the surrounding region. Its hydrology is primarily fed by the Arkansas River, with additional contributions from local snowpack and surface flows. The reservoir serves as a crucial water source for agricultural and recreational uses. It is also home to a variety of fish species, which are popular among anglers. The area around the reservoir is also used for hiking, camping, and other outdoor activities. Overall, Pueblo Reservoir plays a vital role in the water supply and outdoor recreation opportunities in the region.

Reservoir Details

Storage 24hr Change 0.19%
Percent of Normal 123%
Minimum 23,190.0 acre-ft
1975-01-14
Maximum 295,485.0 acre-ft
1985-02-12
Average 156,685 acre-ft
Nid_Height 250
Hydraulic_Height 194
Primary_Dam_Type Buttress
Drainage_Area 4686
Years_Modified 2000 - Foundation, 2000 - Structural
Year_Completed 1975
Dam_Height 200
Structural_Height 250
River_Or_Stream ARKANSAS RIVER
Surface_Area 5671
Hazard_Potential High
Nid_Storage 489116
Dam_Length 10230
       
Seasonal Comparison
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Pool Elevation Levels

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.