The Los Angeles County Metropolitan Transportation Authority announced that its first Tunnel Boring Machine (TBM), Elsie, broke through to the Wilshire/La Cienega subway station in Beverly Hills .
Manufactured in Germany by Herrenknecht AG, TBM Elsie weighs 1,000 tons and are 400 feet long and 21.75 feet in diameter. The Tunnel Boring Machine (TBM), started west at the Wilshire/Fairfax station on May 29, 2020, and broke through to the Wilshire/La Cienega station site about one mile away on February 25.
This is the first of two TBMs that will reach this last station on Section 1 of the $9.3-billion Metro D Line (Purple) Extension project.
LA Metro says tunneling for the first four-mile section of the subway project is now two-thirds complete. More than 90 percent of the tunnels have been excavated safely and Metro anticipates completing tunnel excavation this summer. Excavation for all three subway station boxes beneath Wilshire Boulevard has been completed.
cover tunnel photo by: Matt Brown from London, England / CC BY
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https://thesource.metro.net/2021/03/01/first-tunneling-machine-reaches-future-wilshire-la-cienega-subway-station/
First tunneling machine reaches future Wilshire/La Cienega subway station
thesource.metro.netMetro today announced that its first Tunnel Boring Machine (TBM), named Elsie, on Thursday broke through to the Wilshire/La Cienega subway station in Beverly Hills. It is the first of two TBMs that…