Production of the concrete liners for the new tunnel that will replace the Alaskan Way Viaduct in Seattle was stalled for 10 days due to startup issues and a financial dispute between the two companies partnering in the project. Denver-based prefab maker EnCon is the partner that hires the workers and provides the work site; FPS, a firm owned by Spain-base Dragados, oversees the liners' construction. During the shutdown, the companies repaired "minor flaws in some of the 1,000 or so liners it had already built." Liner construction has resumed.

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