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​End of the line for Harriet, Metro's giant tunneling machine

File: Harriet, the tunnel boring machine, weighs 950 tons and measures 21.5-inches in diameter.
File: Harriet, the tunnel boring machine, weighs 950 tons and measures 21.5-inches in diameter.
Los Angeles Metropolitan Transit Agency

It's the end of the line for Harriet, Metro's tunnel boring machine.

The L.A. County Metropolitan Transportation Authority held a ceremony to retire the behemoth Friday at the site of the Crenshaw/LAX Transit Project.

Harriet completed the second of twin tunnels under Crenshaw Boulevard for the region's latest light rail line on April 6.

The 950-ton, 400-foot-long boring machine was named in honor of Harriet Tubman, the pre-Civil War abolitionist who helped slaves escape from the South through a network known as the Underground Railroad.

The name was suggested by a student during a contest run by Metro.

The new $2 billion light rail line is expected to open in fall 2019.