Miramonte Reservoir Report

Last Updated: December 9, 2025

Miramonte, located in the picturesque San Miguel County of Colorado, is a state-regulated earth dam on the West Naturita Creek.


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Summary

Built in 1978 for recreation purposes, this 87-foot tall structure provides essential fish and wildlife pond resources while offering a serene setting for outdoor enthusiasts. With a normal storage capacity of 6,851 acre-feet and a maximum discharge of 1,800 cubic feet per second, Miramonte covers a surface area of 410 acres and serves as a vital asset for water resource management in the region.

Despite its fair condition assessment and high hazard potential, Miramonte remains a popular destination for water and climate enthusiasts seeking nature-based recreational activities. The dam's uncontrolled spillway, slide gates, and rock foundations contribute to its structural integrity and operational efficiency. With a drainage area of 36 square miles, Miramonte plays a crucial role in maintaining water quality and supporting the local ecosystem through its sustainable management practices. As a state-regulated facility under the jurisdiction of the Department of Water Resources (DWR), Miramonte undergoes regular inspections and enforcement measures to ensure public safety and environmental protection.

In the event of an emergency, Miramonte's risk assessment categorizes it as moderate, with a designated emergency action plan (EAP) prepared to guide response efforts. While the dam's risk management measures and inundation maps are still in development, its compliance with inspection protocols and regulatory standards reflect a commitment to safeguarding the surrounding community and natural resources. Miramonte stands as a testament to responsible water resource stewardship, blending recreational opportunities with sustainable infrastructure design to support the diverse needs of both humans and wildlife in the region.

Year Completed

1978

Dam Length

620

Dam Height

87

River Or Stream

WEST NATURITA CREEK

Primary Dam Type

Earth

Surface Area

410

Hydraulic Height

87

Drainage Area

36

Nid Storage

11620

Structural Height

87

Outlet Gates

Slide (sluice gate), Uncontrolled

Hazard Potential

High

Foundations

Rock

Nid Height

87
       
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.
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Area Campgrounds