Vancil

SOUTH PLATTE-OS· Morgan, Colorado· Built 1990· Earth· 40 ft tall
Significant Hazard Irrigation Private

Key Takeaway

Vancil is classified as significant hazard in Colorado. It was completed in 1990 and is 36 years old. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 40 ft (taller than 81.3% in CO)
Dam Length6,425 ft
Dam TypeEarth
Max Storage9.1K acre-ft
Normal Storage6.4K acre-ft
Surface Area306 acres
Drainage Area2 sq mi
Max Discharge0 cfs
Year Completed1990 (36 years old)
NID IDCO02665

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: November 9, 2021
State Regulated: Yes
Regulatory Agency: DWR

Ownership

RIVERSIDE IRRIGATION DISTRICT (DON CHAPMAN)

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Vancil?

Vancil 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 Vancil?

Vancil is owned by RIVERSIDE IRRIGATION DISTRICT (DON CHAPMAN) (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Vancil built?

Vancil was completed in 1990, making it 36 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 Vancil?

Vancil 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 Vancil?

Vancil has a dam height of 40 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 Vancil last inspected?

Vancil was last inspected on November 9, 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.