Dugger Reservoir Report

Last Updated: December 5, 2025

Dugger, located in Delta, Colorado, is a vital water supply infrastructure owned and regulated by the local government.


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Summary

This earth dam on the Oak Creek-TR river serves the primary purpose of irrigation and water supply, with a maximum storage capacity of 297 acre-feet. Built in 1947, the dam stands at a height of 25 feet, with a structural height of 31 feet, ensuring a steady water supply for the region.

Despite its age, Dugger remains in fair condition with low hazard potential, as indicated by a recent inspection in June 2020. The dam features a slide and uncontrolled gates for water release, with no spillway in place. Although the risk assessment labels the infrastructure as high risk, measures are likely in place to mitigate any potential dangers. The dam's location and design play a crucial role in managing the water resources effectively in the area.

For water resource and climate enthusiasts, Dugger represents a historical landmark in water management, showcasing the importance of maintaining and regulating such structures for sustainable water supply. As climate change continues to impact water availability, understanding and managing dams like Dugger are essential for ensuring water security for communities in Colorado. The coordination between local government agencies and the Department of Water Resources in regulating and inspecting Dugger highlights the collaborative efforts needed to safeguard critical water infrastructure in the face of evolving environmental challenges.

Year Completed

1947

Dam Length

1127

Dam Height

25

River Or Stream

OAK CREEK-TR

Primary Dam Type

Earth

Surface Area

17

Hydraulic Height

26

Nid Storage

297

Structural Height

31

Outlet Gates

Slide (sluice gate), Uncontrolled

Hazard Potential

Low

Foundations

Soil

Nid Height

31
       
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.