The Seattle Tunnel Partners (STP) has completed most of the repair and reassembly of its tunneling machine, Bertha, installing a spare main bearing encircled by a new bull gear. STP will lower the front end of it into the access pit along the Seattle waterfront once the main...
News Briefs: Bertha Could Start Digging Again in November
In this week's news update, Seattle's tunnel boring machine Bertha could start digging again in November and the Global Tunneling and Drilling Equipment Market Report says the markets will expand by 2018
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