Highway Comm. of Wyoming v. Utah Construction Co.

Background

The dispute involved an out‑of‑state construction company and the State of Wyoming acting through its State Highway Commission. In 1922 the company contracted with the State, signed by the Highway Commission’s superintendent, to build a highway. The contractor later sued in federal court, alleging the contractor was a citizen of another State and naming the Highway Commission and its members as defendants. The federal district court treated the suit as one against Wyoming and dismissed for lack of diversity. The appeals court reversed and the case reached this Court.

Reasoning

The central question was whether the suit was really against the State so that diversity of citizenship could not support federal jurisdiction. The Court examined the contract language and the role of the Highway Commission and concluded the agreement was made by the State and the Commission was the State’s arm. The supplemental agreement did not create personal liability for commissioners. Because a State is not a “citizen” for diversity purposes and no other federal basis for jurisdiction was alleged, the Court held the federal courts lacked jurisdiction.

Real world impact

The decision means contractors and others cannot rely on diversity to sue a State in federal court when the State is the real party in interest. Disputes against a State will usually proceed in state courts unless a federal law or constitutional question provides a separate federal basis. The ruling emphasizes that a State is not treated as a citizen for the purpose of diversity suits.