Fort Lyon Control Basin

ARKANSAS RIVER-OS· Prowers, Colorado· Built 1959· Earth· 13 ft tall
Significant Hazard Irrigation Private

Key Takeaway

Fort Lyon Control Basin is classified as significant hazard in Colorado. It was completed in 1959 and is 67 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 13 ft (taller than 14.5% in CO)
Dam Length2,188 ft
Dam TypeEarth
Max Storage1.2K acre-ft
Normal Storage644 acre-ft
Surface Area121 acres
Drainage Area1 sq mi
Max Discharge1,853 cfs
Year Completed1959 (67 years old)
NID IDCO00737

Safety Information

Significant Hazard

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?

Emergency Action Plan: Yes
Last Inspection: April 29, 2021
State Regulated: Yes
Regulatory Agency: DWR

Ownership

FORT LYON CANAL CO.

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Fort Lyon Control Basin?

Fort Lyon Control Basin 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 Fort Lyon Control Basin?

Fort Lyon Control Basin is owned by FORT LYON CANAL CO. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Fort Lyon Control Basin built?

Fort Lyon Control Basin was completed in 1959, making it 67 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 Fort Lyon Control Basin?

Fort Lyon Control Basin serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Fort Lyon Control Basin?

Fort Lyon Control Basin has a dam height of 13 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 Fort Lyon Control Basin last inspected?

Fort Lyon Control Basin was last inspected on April 29, 2021. 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.