Deep Creek #2 Reservoir Report

Last Updated: December 5, 2025

Deep Creek #2 is a privately owned irrigation dam located in Mesa County, Colorado.


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Summary

Built in 1906, this Earth type dam stands at a height of 31 feet and spans 600 feet in length, with a storage capacity of 658 acre-feet. The dam is situated on Kannah Creek-TR, serving as a vital resource for agricultural water supply in the region.

Despite being regulated and inspected by the Colorado Department of Water Resources, Deep Creek #2 poses a significant hazard potential and has been assessed to be in fair condition as of August 2019. With a high risk rating of 2, the dam lacks a spillway and relies on slide gates for outlet control. The emergency action plan for the dam is currently not up to date, highlighting the need for improved risk management measures to mitigate potential dangers.

Water resource and climate enthusiasts should take note of Deep Creek #2 as a key irrigation infrastructure in the area, providing essential water storage for agricultural purposes. With its historical significance dating back over a century, the dam's condition and risk assessment underscore the importance of proactive maintenance and emergency preparedness to safeguard the surrounding communities and water resources in the event of a potential failure.

Year Completed

1906

Dam Length

600

Dam Height

31

River Or Stream

KANNAH CREEK-TR

Primary Dam Type

Earth

Surface Area

66

Hydraulic Height

31

Nid Storage

658

Structural Height

31

Outlet Gates

Slide (sluice gate), Uncontrolled

Hazard Potential

Significant

Foundations

Rock, Soil

Nid Height

31
       
Seasonal Comparison

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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.