Whalen Diversion Dam

NORTH PLATTE RIVER· Goshen, Wyoming· Built 1909· Concrete·
Low Hazard Federal Government

Key Takeaway

Whalen Diversion Dam is classified as low hazard in Wyoming. It was completed in 1909 and is 117 years old.

Physical Details

Dam TypeConcrete
Max Storage59 acre-ft
Normal Storage0 acre-ft
Year Completed1909 (117 years old)
NID IDWY02509

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
State Regulated: No

Ownership

RECLAMATION

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Whalen Diversion Dam?

Whalen Diversion Dam 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 Whalen Diversion Dam?

Whalen Diversion Dam is owned by RECLAMATION (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Whalen Diversion Dam built?

Whalen Diversion Dam was completed in 1909, making it 117 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

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.