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Seattle’s Bertha Tunnels Past Halfway Mark

KIRO News reports, “Seattle’s massive tunnel-boring machine, Bertha, is just past the halfway mark as it digs in its journey under the city. When the machine tunneled past Pike Place Market on Friday, it pushed beyond the halfway mark of the 9,270-foot-tunnel that will lead to the removal of the Alaskan Way Viaduct. The post Seattle’s Bertha Tunnels Past Halfway Mark appeared first on Toll Roads News.
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