Second Avenue Subway, Engineering Services
Client: Metropolitan Transportation Authority, Capital Construction Company
Project location: New York, New York
Project cost: $12 billion
DMJM Harris, a managing partner in a joint venture, is the prime consultant for the design of this $12-billion project. We have also provided preliminary engineering and environmental support for the new subway line, which will relieve congestion on the east side of Manhattan. To avoid disrupting communities, utilities and traffic, approximately half of the 16 stations along the new 8.5-mile alignment will be mined.
The subway will connect to the existing subway system at three locations and to the existing bus system at almost every station. Tunneling will involve use of various techniques, including tunnel boring, cut-and-cover, and mined sections. The train control system will be an advanced communications-based system.
Engineering is being completed in three phases. Phase I includes the preliminary engineering for the entire alignment and development of a design/build contract for a bored tunnel between 96th Street and Midtown. Phase II is the final design of all stations and the remaining tunnel. Phase III is for construction phase engineering services. The joint venture has received a go-ahead for Phase I and for Phase III construction services for the initial design/build contract.
