LA Metro Sets Herrenknecht TBMs to Work on Purple Line Extension
The Los Angeles County Metropolitan Transportation Authority unveils two new tunnel boring machines on June 17 for the authority’s $9.3-billion Purple Line Extension (PLE) project. Manufactured in Germany by Herrenknecht AG, the TBMs each weigh 1,000 tons and are 400 ft long an...Tags: Herrenknecht TBM, Los Angeles metro Herrenknecht TBM, Los Angeles metro
cover tunnel photo by: Matt Brown from London, England / CC BY
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