Evergreen
Key Takeaway
Evergreen is classified as high hazard in Colorado. It was completed in 1927 and is 99 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.
Physical Details
| Dam Height | 41 ft (taller than 82.7% in CO) |
| Dam Length | 380 ft |
| Dam Type | Earth |
| Max Storage | 800 acre-ft |
| Normal Storage | 669 acre-ft |
| Surface Area | 40 acres |
| Drainage Area | 101 sq mi |
| Max Discharge | 12,000 cfs |
| Year Completed | 1927 (99 years old) |
| NID ID | CO00328 |
Safety Information
Loss of human life is likely if the dam fails.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
EVERGREEN METROPOLITAN DISTRICT (LIGHTHART, DAVE)
Public Utility
Nearby Dams
Meadowview
Jefferson, CO
Significant Hazard 20 ftHiwan #6
Jefferson, CO
Low Hazard 23 ftGenesee No. 2
Jefferson, CO
High Hazard 98 ftLockport
Jefferson, CO
Significant Hazard 20 ftGenesee No. 1
Jefferson, CO
Low Hazard 23 ftMaxwell Creek
Jefferson, CO
Low Hazard 31 ftHiwan #4
Jefferson, CO
Low Hazard 35 ftGayno
Jefferson, CO
Low Hazard 29 ftFrequently Asked Questions
What is the hazard classification of Evergreen?
Evergreen is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Evergreen?
Evergreen is owned by EVERGREEN METROPOLITAN DISTRICT (LIGHTHART, DAVE) (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Evergreen built?
Evergreen was completed in 1927, making it 99 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Evergreen?
Evergreen serves the following purposes: Water Supply, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Evergreen?
Evergreen has a dam height of 41 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Evergreen last inspected?
Evergreen was last inspected on November 16, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.