Stagecoach

Yampa River· Routt, Colorado· Built 1988· Roller-Compacted Concrete· 150 ft tall
High Hazard Water Supply Irrigation Recreation Hydroelectric Public Utility

Key Takeaway

Stagecoach is classified as high hazard in Colorado. It was completed in 1988 and is 38 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 150 ft (taller than 97.9% in CO)
Dam Length390 ft
Dam TypeRoller-Compacted Concrete
Normal Storage36.4K acre-ft
Surface Area819 acres
Drainage Area227 sq mi
Max Discharge450 cfs
Year Completed1988 (38 years old)
NID IDCO02702

Safety Information

High Hazard

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?

Emergency Action Plan: Yes
Last Inspection: June 23, 2022
State Regulated: Yes
Regulatory Agency: DWR

Ownership

Upper Yampa Water Conservancy District

Public Utility

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Stagecoach?

Stagecoach 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 Stagecoach?

Stagecoach is owned by Upper Yampa Water Conservancy District (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Stagecoach built?

Stagecoach was completed in 1988, making it 38 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 Stagecoach?

Stagecoach serves the following purposes: Water Supply, Irrigation, Recreation, Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Stagecoach?

Stagecoach has a dam height of 150 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 Stagecoach last inspected?

Stagecoach was last inspected on June 23, 2022. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.