West Halfway Detention Dam

SAN SIMON RIVER· Graham, Arizona· Gravity·
Low Hazard Debris Control Federal Government

Key Takeaway

West Halfway Detention Dam is classified as low hazard in Arizona. Its primary use is debris control.

Physical Details

Dam Length940 ft
Dam TypeGravity
Max Storage405 acre-ft
Normal Storage24 acre-ft
Surface Area84 acres
Drainage Area4 sq mi
Year Modified1985
NID IDAZ20032

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 8, 2015
State Regulated: No

Ownership

DOI BLM

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of West Halfway Detention Dam?

West Halfway Detention 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 West Halfway Detention Dam?

West Halfway Detention Dam is owned by DOI BLM (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of West Halfway Detention Dam?

West Halfway Detention Dam serves the following purposes: Debris Control. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

When was West Halfway Detention Dam last inspected?

West Halfway Detention Dam was last inspected on July 8, 2015. 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.