Bucknum

BOX DRAW· Natrona, Wyoming· Built 1908· Earth· 23 ft tall
Low Hazard Irrigation Private

Key Takeaway

Bucknum is classified as low hazard in Wyoming. It was completed in 1908 and is 118 years old. Its primary use is irrigation.

Physical Details

Dam Height 23 ft (taller than 32.5% in WY)
Dam Length1,183 ft
Dam TypeEarth
Max Storage388 acre-ft
Normal Storage270 acre-ft
Surface Area54 acres
Drainage Area0 sq mi
Max Discharge0 cfs
Year Completed1908 (118 years old)
NID IDWY00236

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 7, 2023
State Regulated: Yes
Regulatory Agency: SEO

Ownership

HARLAN BUCKNUM LLC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Bucknum?

Bucknum 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 Bucknum?

Bucknum is owned by HARLAN BUCKNUM LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Bucknum built?

Bucknum was completed in 1908, making it 118 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 Bucknum?

Bucknum 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 Bucknum?

Bucknum 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 Bucknum last inspected?

Bucknum was last inspected on September 7, 2023. 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.