Willow

LEROUX CREEK-TR· Delta, Colorado· Built 1948· Earth· 28 ft tall
Low Hazard Irrigation Water Supply Private

Key Takeaway

Willow is classified as low hazard in Colorado. It was completed in 1948 and is 78 years old. Its primary use is irrigation.

Physical Details

Dam Height 28 ft (taller than 61.6% in CO)
Dam Length860 ft
Dam TypeEarth
Max Storage165 acre-ft
Normal Storage120 acre-ft
Surface Area9 acres
Drainage Area1 sq mi
Max Discharge691 cfs
Year Completed1948 (78 years old)
NID IDCO00649

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: July 27, 2020
State Regulated: Yes
Regulatory Agency: DWR

Ownership

LEROUX CREEK WATER USERS ASSOCIATION

Private

Nearby Dams

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Dog Fish Lake

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Holy Terror

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Goodenough #2

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Significant Hazard 38 ft

Pine Cone

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Fairmont Park

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Lucky Find

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Elk Wallows

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Frequently Asked Questions

What is the hazard classification of Willow?

Willow 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 Willow?

Willow is owned by LEROUX CREEK WATER USERS ASSOCIATION (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Willow built?

Willow was completed in 1948, making it 78 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 Willow?

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

How tall is Willow?

Willow has a dam height of 28 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 Willow last inspected?

Willow was last inspected on July 27, 2020. 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.