Robinson Reservoir Report

Last Updated: December 4, 2025

Robinson, also known as Robinson Lake Dam, is a privately owned structure located in Redcliff, Colorado.


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Summary

Built in 1936, this Earth dam serves the primary purpose of managing tailings and stands at a height of 110 feet, with a hydraulic height of 80 feet. The dam has a storage capacity of 3648 acre-feet and a surface area of 80 acres, with a controlled spillway width of 42 feet.

With a high hazard potential and a very high risk assessment rating, Robinson Dam is regulated by the Colorado Division of Water Resources. Despite its age, the dam is in satisfactory condition as of the last assessment in July 2020. It has undergone modifications in 1956 and 1981 for structural and mechanical improvements, ensuring its continued safety and functionality for the surrounding area and the East Fork Eagle River-Tr stream.

In the event of an emergency, an Emergency Action Plan (EAP) has been prepared, last revised in December 2017. The dam has one uncontrolled and one valve outlet gate, with an inspection frequency of one year to ensure its ongoing safety and compliance with regulatory standards. Robinson Dam plays a crucial role in water resource management in the area, highlighting the importance of maintaining and monitoring such critical infrastructure in the face of evolving climate challenges.

Years Modified

1956 - Structural, 1981 - Mechanical

Year Completed

1936

Dam Length

1455

Dam Height

103

River Or Stream

EAST FORK EAGLE RIVER-TR

Primary Dam Type

Earth

Surface Area

80

Hydraulic Height

80

Drainage Area

1

Nid Storage

3648

Structural Height

110

Outlet Gates

Uncontrolled - 1, Valve - 1

Hazard Potential

High

Foundations

Rock, Soil

Nid Height

110
       
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.