Los Angeles County Metropolitan Transportation Authority (Metro)


Los Angeles and Beverly Hills, CA


Rail Transportation: Line Segments & Tunnels


Design: Architecture, Civil Engineering, Structural Engineering, Mechanical Engineering, Electrical Engineering, Fire/Life Safety Systems, Traction Power Systems, Systems Design, Signals/Train Control

Purple Line Extension Project Section 2 Design-Build

First envisioned more than 50 years ago as a vital connector between downtown Los Angeles and Westwood, a subway line along the congested Wilshire corridor is becoming a reality.

Working as part of the design-build team led by Tutor Perini and O&G Industries, STV is serving as the engineer-of-record and principal design firm for the 2.59-mile-long Metro Purple Line Extension Project Section 2 that will link the Los Angeles County Metropolitan Transportation Authority’s (Metro) Section 1 running through the Miracle Mile District with Section 3 connecting Century City to Westwood. Overall, the $9.3 billion Purple Line extension will run 9.1 miles from Koreatown to Westwood.

STV’s services include the design of stations at Beverly Hills and Century City along with the running tunnels. The firm also engineered and designed the so-called “launch box” in Century City where the two 400-foot-long TBMs will be lowered into excavations extending more than 70 feet below Constellation Boulevard to begin their 14- month journeys.