MTA signs billion-dollar design-build deal to push Second Avenue Subway into Harlem
05.06.2026
A consortium comprising Skanska, Traylor Bros, and Walsh Construction has signed a design-build contract with the Metropolitan Transportation Authority (MTA). The contract, worth more than one billion dollars, is for the New York metro extension.

The agreement forms part of Second Avenue Subway Phase 2. It covers the construction of 2.83 km of track and three new stations. The project will extend subway service into East Harlem and Harlem. In addition, it will connect both areas with Manhattan’s rapid transit network.
New York metro extension scheduled to open in 2030
The contracted work includes excavation, earthwork support, and structural connections to existing tunnels. Also, temporary road platforms will be installed to maintain existing traffic during construction.
The consortium will build ground-level and underground structures for two station entrances. Its responsibilities also cover utility relocation and restoration work.
The work is scheduled for completion in 2030, when the extension will become operational. The extension will continue the Q subway line north along Second Avenue. It will run from 96th Street to 125th Street. In addition, the work includes the construction of complex new underground infrastructure in Manhattan.
New stations will be built at 106th Street and 116th Street on Second Avenue. A terminal station will be built at 125th Street and Lexington Avenue. It will serve as a major transfer point. The transfer point will connect with the 4/5/6 subway lines and the Metro-North network.
Extending the Q line into East Harlem and Harlem will reduce travel times. It will also improve connectivity across Manhattan’s East Side. The project will also ease overcrowding on the Lexington Avenue line. It will provide a direct connection between northern Manhattan and downtown.
Second Avenue Subway Phase 2 builds on the first phase
Phase 2 builds on the first phase of the Second Avenue Subway. That phase extended service from 63rd Street to 96th Street. It has been operational since 2017. Skanska delivered that phase through a joint venture with J.F. Shea Construction and Schiavone Construction.
Once the full project is completed, the Second Avenue Subway will provide a double-track line. The line will run between 125th Street and Lower Manhattan. It will also connect with West Midtown and Brooklyn. The project will expand transit access for East Side residents, workers, and visitors. In addition, it will reduce congestion on the nearly 100-year-old Lexington Avenue line.
