Coal Ridge Waste Dam #1
Key Takeaway
Coal Ridge Waste Dam #1 is classified as significant hazard in Colorado. It was completed in 1954 and is 72 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 31 ft (taller than 68.6% in CO) |
| Dam Length | 2,720 ft |
| Dam Type | Earth |
| Max Storage | 1.2K acre-ft |
| Normal Storage | 591 acre-ft |
| Surface Area | 81 acres |
| Drainage Area | 3 sq mi |
| Max Discharge | 9,290 cfs |
| Year Completed | 1954 (72 years old) |
| NID ID | CO00090 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
PLATTE VALLEY IRRIGATION CO. (SCHMIDT, KEVIN)
Private
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Low Hazard 11 ftFrequently Asked Questions
What is the hazard classification of Coal Ridge Waste Dam #1?
Coal Ridge Waste Dam #1 is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Coal Ridge Waste Dam #1?
Coal Ridge Waste Dam #1 is owned by PLATTE VALLEY IRRIGATION CO. (SCHMIDT, KEVIN) (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Coal Ridge Waste Dam #1 built?
Coal Ridge Waste Dam #1 was completed in 1954, making it 72 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 Coal Ridge Waste Dam #1?
Coal Ridge Waste Dam #1 serves the following purposes: Irrigation, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Coal Ridge Waste Dam #1?
Coal Ridge Waste Dam #1 has a dam height of 31 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 Coal Ridge Waste Dam #1 last inspected?
Coal Ridge Waste Dam #1 was last inspected on May 23, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.