Syllabus
Note: Where it is feasible, a syllabus (headnote) will be released, as is being done in connection with this case, at the time the opinion is issued. The syllabus constitutes no part of the opinion of the Court but has been prepared by the Reporter of Decisions for the convenience of the reader. See United States v. Detroit Timber & Lumber Co., 200 U. S. 321, 337.
SUPREME COURT OF THE UNITED STATES
Syllabus
GLACIER NORTHWEST, INC., DBA CALPORTLAND v. INTERNATIONAL BROTHERHOOD OF TEAMSTERS LOCAL UNION NO. 174
CERTIORARI TO THE SUPREME COURT OF WASHINGTON
No. 21–1449. Argued January 10, 2023—Decided June 1, 2023
Glacier Northwest delivers concrete to customers in Washington State using ready-mix trucks with rotating drums that prevent the concrete from hardening during transit. Concrete is highly perishable, and even concrete in a rotating drum will eventually harden, causing significant damage to the vehicle. Glacier’s truck drivers are members of the International Brotherhood of Teamsters Local Union No. 174. After a collective-bargaining agreement between Glacier and the Union expired, the Union called for a work stoppage on a morning it knew the company was in the midst of mixing substantial amounts of concrete, loading batches into ready-mix trucks, and making deliveries. The Union directed drivers to ignore Glacier’s instructions to finish deliveries in progress. At least 16 drivers who had already set out for deliveries returned with fully loaded trucks. By initiating emergency maneuvers to offload the concrete, Glacier prevented significant damage to its trucks, but all the concrete mixed that day hardened and became useless.
