Dockworkers at ports alongside the West Coast have ratified a brand new contract, securing a sweeping settlement set to final six years and anticipated to ease tensions after cargo shipments have been diverted to different areas.

The contract between the International Longshore and Warehouse Union and the Pacific Maritime Association, which operates the terminals, covers 22,000 dockworkers at 29 ports from Los Angeles to Seattle.

The contract was approved by 75 percent of members who voted, the union mentioned late Thursday. Details of the settlement weren’t launched publicly, and the union declined to remark. Unionized employees on the ports have common salaries within the low six figures.

The maritime affiliation didn’t reply to a request for remark.

The two sides announced in June that they’d reached a tentative settlement after a yr of negotiations that prompted intervention from the Biden administration and coincided with a decline within the quantity of cargo at a number of main ports alongside the West Coast.

During the negotiation interval, as employees staged a sequence of slowdowns, together with on the twin ports of Los Angeles and Long Beach, some transport corporations diverted freight to ports alongside the Gulf and East Coasts after which by no means returned to their previous routes.

And the motion of products continued to lag into the summer time.

At the Port of Los Angeles, the quantity of cargo imported in July was down 25 % from a yr earlier. But at Port Houston, the place some corporations rerouted cargo, officers reported its greatest July on file in processing cargo.

Geraldine Knatz, a former head of the Port of Los Angeles and now professor of the apply of coverage and engineering on the University of Southern California, mentioned she anticipated the contract’s ratification to offer some shippers the extent of consolation they wanted to return to their previous routes.

“Everyone is expecting we will see an increase in volume,” she mentioned of cargo dealt with on the West Coast.

Matthew Shay, president of the National Retail Federation, mentioned the West Coast ports performed a important function within the vitality of the enterprise neighborhood nationwide.

“Now that an agreement has been ratified by all parties, the millions of businesses and employees who rely on their operations can be assured that long-term stability will remain at the West Coast ports,” Mr. Shay mentioned.

Santul Nerkar contributed reporting.