Evergreen

Evergreen is an earth dam located in Jefferson County, Colorado, built in 1927. It carries a High hazard potential classification and has a fair condition assessment.

About Evergreen

The primary purpose of Evergreen is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Evergreen Metropolitan District (lighthart, Dave) (public utility). It impounds the Bear Creek near Evergreen.

The dam stands 50 feet tall and stretches 380 feet across, creates a reservoir covering 40 acres, has a maximum storage capacity of 800 acre-feet, and collects water from a drainage area of 101 square miles. Completed in 1927, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 11/16/2022.

At 50 feet, this dam is taller than 93% of dams nationwide.

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 HazardFair ConditionEmergency Action Plan: Yes

Location

StateColorado
CountyJefferson
Nearest CityEvergreen
River/StreamBear Creek
Coordinates39.63180, -105.32300

Physical Characteristics

Dam TypeEarth
NID Height50 ft
Dam Height41 ft
Dam Length380 ft
Year Completed1927 (99 years old)

Storage & Hydraulics

NID Storage800 acre-ft
Max Storage800 acre-ft
Normal Storage669 acre-ft
Surface Area40 acres
Drainage Area101 sq mi
Max Discharge12,000 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeWater Supply
OwnerEVERGREEN METROPOLITAN DISTRICT (LIGHTHART, DAVE)
Owner TypePublic Utility
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection11/16/2022
Emergency Action PlanYes

Identifiers

NID IDCO00328
Federal IDCO00328
More InfoState Dam Safety Program

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