10 years ago
What’s blocking Bertha: a long steel pipe
A buried steel pipe is mostly to blame for stopping the giant tunnel-boring machine Bertha, which has been stuck since Dec. 6 along the Seattle waterfront near South Main Street. The long pipe was an 8-inch diameter, 115-foot-long “well casing,” used to measure groundwater during studies in 2002 on the Alaskan Way Viaduct replacement project, project officials said. Matt Preedy, […]
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