The Seattle Times

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BETTINA HANSEN / The Seattle Times
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Wednesday, September 18, 2013

Tunnel-digger Bertha heading back to work

A conveyor belt designed to carry dirt from the Highway 99 tunnel project stretches into Elliott Bay, where the dirt would be loaded onto barges and shipped to a quarry. Part of the dispute between longshore and building-trades unions is over who will run the conveyor belt.