Robinson

Robinson is an earth dam located in Eagle County, Colorado, built in 1936. It carries a High hazard potential classification and has a satisfactory condition assessment.

About Robinson

The primary purpose of Robinson is tailings. Tailings dams contain waste material from mining operations — typically a slurry of finely ground rock left over after valuable minerals have been extracted. These structures require ongoing monitoring because tailings can contain heavy metals and other contaminants. The dam is owned by Climax Molybdenum Co (richards, Tim) (private). It impounds the East Fork Eagle River-tr near Redcliff.

The dam stands 110 feet tall and stretches 1,455 feet across, creates a reservoir covering 80 acres, has a maximum storage capacity of 3,648 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1936, the structure is well-established, with more than 75 years of service.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 08/09/2022.

At 110 feet, this dam is taller than 98% of all dams in the United States.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Colorado dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateColorado
CountyEagle
Nearest CityRedcliff
River/StreamEast Fork Eagle River-tr
Coordinates39.39640, -106.22279

Physical Characteristics

Dam TypeEarth
NID Height110 ft
Dam Height103 ft
Dam Length1,455 ft
Year Completed1936 (90 years old)

Storage & Hydraulics

NID Storage3,648 acre-ft
Max Storage3,648 acre-ft
Normal Storage3,317 acre-ft
Surface Area80 acres
Drainage Area1 sq mi
Max Discharge1,094 cfs
Spillway TypeControlled

Ownership & Safety

PurposeTailings
OwnerCLIMAX MOLYBDENUM CO (RICHARDS, TIM)
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection08/09/2022
Emergency Action PlanYes

Identifiers

NID IDCO00671
Federal IDCO00671
More InfoState Dam Safety Program

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