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Groundbreaking Tunneling Machine “Harriet” Used on RMA Project

RMA has provided quality control services throughout multiple construction phases of the Crenshaw / LAX Line and is excited to see innovative technologies like the Tunnel Boring Machine ‘Harriet’ be of aid the $2 Billion project. Aptly named after the Underground Railroad coordinator Harriet Tubman, the 950 ton, 400 feet long machine will excavate the area mapped out for the underground portion of the line. The subway system will include two tunnels at the northern end of the Crenshaw / LAX Line along with three underground stations.

The 8.5-mile Crenshaw / LAX Line will run between the Green Line and the Expo Line. The line is expected to open in 2019 and serve the neighborhoods of Crenshaw, Inglewood, and LAX.