Excavation of the southbound tunnel is expected to begin in late April or early May, moving south under Crenshaw Boulevard from Exposition Boulevard toward Leimert Park. This stretch of track will include three underground stations: Expo/Crenshaw, Martin Luther King, Jr. and Leimert Park.
Walsh-Shea Corridor Constructors is comprised of Walsh, Shea, HNTB, Comstock and Arup, and is using a 21.5ft (6.5m) diameter TBM for the project’s twin 1-mile (1.6km) tunnels. At Leimert Park the TBM will turn around to mine the northbound tunnel. In total the Crenshaw/LAX Line alignment is 8.5-miles (13.7km) long.
