Overview

• Connect+ brings together FCC Construcción, controlled by Carlos Slim, and Halmar International under an MTA award to deliver the extension.
• The scope covers two new tunnels and two stations serving Harlem, pushing the line north from the Upper East Side to East Harlem.
• A 762‑meter tunnel built between 116th and 125th streets in the 1970s will be converted into a station to help contain costs.
• The project adds a 2,560‑meter bored segment to Malcolm X Boulevard, excavation of the 125th Street station cavity, and shafts for auxiliary buildings and future access.
• FCC says two German-made variable-density tunnel-boring machines weighing about 1.5 million pounds will handle mixed ground conditions, and MTA projections put combined Phase 1 and Phase 2 ridership near 300,000 daily passengers.