United States v. Idaho

Background

A regional railroad owned a nine-mile branch line in Idaho that reached a coal mine. The railroad asked the federal Interstate Commerce Commission for permission to abandon the track. Idaho’s Attorney General and Public Utilities Commission objected, saying the branch was really a spur serving only the local mine and therefore outside the federal agency’s authority. The federal agency approved abandonment, and the State sued in federal court to overturn that approval and stop the abandonment.

Reasoning

The central question was whether the Talbot branch was a local spur or part of interstate commerce subject to the federal agency. The trial court found the line was built to serve a single coal industry, with the mine owners supplying right-of-way and part of construction costs and contracting about minimum shipments. The railroad never ran scheduled passenger, mail, or express service, had no stations or agents, and had almost no shipments in the opposite direction. A state utilities order in 1924 had previously treated the track as a spur. Based on these facts, the court concluded the line’s use was local in character and that the federal agency lacked power to approve its abandonment. The Supreme Court affirmed that factual conclusion.

Real world impact

The decision makes clear that short rail lines built and used mainly to serve one local industry can be classified as state-level spurs, limiting federal power to authorize abandonment. That means state agencies can block abandonment of such lines and local businesses dependent on rail service may have stronger protection from sudden loss of service.