Lunney

NINE MILE DRAW· Rio Blanco, Colorado· Built 1904· Earth· 35 ft tall
Low Hazard Irrigation Private

Key Takeaway

Lunney is classified as low hazard in Colorado. It was completed in 1904 and is 122 years old. Its primary use is irrigation.

Physical Details

Dam Height 35 ft (taller than 75.7% in CO)
Dam Length120 ft
Dam TypeEarth
Max Storage100 acre-ft
Normal Storage82 acre-ft
Surface Area6 acres
Drainage Area16 sq mi
Max Discharge164 cfs
Year Completed1904 (122 years old)
NID IDCO01933

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
Last Inspection: June 10, 2022
State Regulated: Yes
Regulatory Agency: DWR

Ownership

GREG MCKENNIS

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Lunney?

Lunney is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Lunney?

Lunney is owned by GREG MCKENNIS (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Lunney built?

Lunney was completed in 1904, making it 122 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 Lunney?

Lunney 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 Lunney?

Lunney has a dam height of 35 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 Lunney last inspected?

Lunney was last inspected on June 10, 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.