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Vol. VI • No 26
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Completion Nears for Part of LA Metro’s D Line Expansion Tunneling beneath a metropolitan area is bound to lead to technical challenges as well as turn up some unexpected discoveries. Builder Skanska Traylor Shea Joint Venture (JV) unearthed the skeleton of a mastodon as its crew worked on the 3.9-mi. extension of the Los Angeles County Metropolitan Transportation Authority’s (Metro) D Line. Called phase one of a three-phase, $9.7 billion expansion of the Metro’s D Line, the section, including three underground stations (see sidebar), is expected to open in early 2026. Running beneath Wilshire Boulevard in Mid L.A., the project is notable for its use of equipment to reduce its carbon footprint as well as its encounter with prehistoric Los Angeles at the famed La Brea Tar Pits, said Tim Lindholm, Metro’s chief program management officer.
By David Holzel
CEG CORRESPONDENT
see METRO page 4
Because the tunnels were classified as gassy, electrical equipment underground is required to be Class 1 Division 2 (explosion proof).
Crews deal with a ruptured gas line Los Angeles County Metropolitan Transportation Authority’s (Metro) D Line.