Major transit investments continue to drive infrastructure construction activity across New York City, with one of the region's most significant rail expansion projects entering a new phase of development.
Halmar International, working as part of Connect Plus Partners alongside FCC Construction, recently participated in a groundbreaking ceremony for the Second Avenue Subway Phase 2 project in Harlem, marking a key milestone for the long-planned transit expansion.
Connect Plus Partners was awarded the $1.972 billion design-build contract in 2025 to deliver the tunneling and structural shell portion of the project.
The scope includes rehabilitation of an existing tunnel segment constructed during the 1970s, excavation of two new subway tunnels, and construction of the underground cavern that will house the future 125th Street Station.
Project plans also incorporate the reuse of existing tunnel infrastructure to help manage construction costs and improve delivery efficiency.
Second Avenue Subway Phase 2 will extend Q train service north from 96th Street to 125th Street, adding new ADA-accessible stations at 106th Street, 116th Street, and 125th Street.
The project will also improve connections to the Lexington Avenue subway corridor and Metro-North commuter rail services, expanding transit options for residents and commuters in Upper Manhattan.
Transit agencies estimate the extension will accommodate approximately 110,000 additional daily riders upon completion.
For infrastructure owners, contractors, and transportation stakeholders, the Second Avenue Subway Phase 2 project represents one of the largest active transit construction programs in the Northeast. The design-build delivery model, extensive tunneling work, and integration of existing infrastructure highlight approaches being used to advance large-scale urban transit projects while expanding mobility and accessibility in densely populated communities.
Source: Halmar International.
.png)
