Olds

LOST CREEK-OS· Weld, Colorado· Built 1918· Earth· 23 ft tall
Low Hazard Other Private

Key Takeaway

Olds is classified as low hazard in Colorado. It was completed in 1918 and is 108 years old. Its primary use is other.

Physical Details

Dam Height 23 ft (taller than 47.2% in CO)
Dam Length1,100 ft
Dam TypeEarth
Max Storage1.7K acre-ft
Normal Storage1.1K acre-ft
Surface Area134 acres
Drainage Area0 sq mi
Max Discharge6,000 cfs
Year Completed1918 (108 years old)
NID IDCO02087

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: September 6, 2019
State Regulated: Yes
Regulatory Agency: DWR

Ownership

HENRYLYN IRRIGATION DISTRICT

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Olds?

Olds 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 Olds?

Olds is owned by HENRYLYN IRRIGATION DISTRICT (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Olds built?

Olds was completed in 1918, making it 108 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 Olds?

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

How tall is Olds?

Olds has a dam height of 23 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 Olds last inspected?

Olds was last inspected on September 6, 2019. 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.