Port of Portland v. United States

408 U.S. 811 · Decided June 29, 1972 · Supreme Court of the United States

At a glance

Port of Portland v. United States was decided on June 29, 1972 unanimously (7–0). The Court reversed the lower court's decision and remanded the case. Justice Harry A. Blackmun wrote the opinion of the Court. SCDB classifies its main issue as “Mergers” in the Economic Activity area.

Read the opinion

• CourtListener (Free Law Project) — opinion text
• Library of Congress — official U.S. Reports scan

Case details

How the Justices voted

Did not participate: Lewis F. Powell Jr., William H. Rehnquist.

Full case caption

Port of Portland et al. v. United States et al.

SCDB identifiers: case 1971-179, docket 1971-179-01.

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Cases on the same legal provision: Interstate Commerce Act

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Source: Supreme Court Database, 2026 Release 01 (data file dated September 8, 2026). Imported into CaseTrail November 5, 2026. Coverage: decisions from the 1946 through 2025 Terms. Methodology · Report an error