Los Angeles D Line Subway Extension Project Section 1

completed

The Los Angeles D Line Subway Extension Project added roughly 4 miles of subway with three new underground stations, including one beneath Wilshire Boulevard. The project involved tunneling two tunnels and building three stations in a densely populated area, with extensive utility work, excavation, and tunneling through challenging soil conditions including tar sands. The project also involved handling dangerous gases and the discovery of over 500 ice age fossils during excavation.