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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 and 21.75 ft in diameter.

https://www.enr.com/articles/47192-la-metro-sets-tbms-to-work-on-purple-line-extension

 

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