King #3 Reservoir Report

Last Updated: December 5, 2025

King #3, also known as Twin Lakes #1, is a private dam located in Mesa, Colorado, with a primary purpose of recreation.


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Summary

Built in 1940, this earth dam stands at a height of 30 feet and has a length of 443 feet, providing a storage capacity of 91 acre-feet. The dam overlooks the North East Creek-TR river or stream, and is regulated by the Colorado Division of Water Resources.

Despite its low hazard potential and fair condition assessment, King #3 poses a high risk due to its location and design. With a maximum discharge of 3800 cubic feet per second, the dam's spillway, although not specified, has a width of 110 feet. The dam's outlet gates consist of slide (sluice gate) and uncontrolled mechanisms, and it has undergone inspections every 6 years, with the last assessment completed in September 2016.

For water resource and climate enthusiasts, King #3 offers a glimpse into the intricate world of dam infrastructure and regulation. Its blend of historical significance, recreational purpose, and risk factors make it a compelling case study in the management of water resources and the importance of maintaining critical infrastructure for the safety and enjoyment of communities.

Year Completed

1940

Dam Length

443

Dam Height

30

River Or Stream

NORTH EAST CREEK-TR

Primary Dam Type

Earth

Surface Area

6

Hydraulic Height

30

Nid Storage

91

Structural Height

32

Outlet Gates

Slide (sluice gate), Uncontrolled

Hazard Potential

Low

Foundations

Rock, Soil

Nid Height

32
       
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.