New Contracts Revive New York’s Second Avenue Subway

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New contract awards and a high-profile groundbreaking are restoring momentum to New York City’s Second Avenue Subway, marking a decisive new phase for the long-delayed extension through East Harlem.

Groundbreaking Signals Start of Phase 2 Construction

Recent coverage indicates that construction of Phase 2 of the Second Avenue Subway formally advanced in June 2026, when New York officials gathered in East Harlem for a ceremonial groundbreaking. The event took place near 120th Street and Second Avenue, at the future launch site of a tunnel boring machine that is expected to begin mining new subway tunnels toward 125th Street in early 2027.

Published accounts describe the groundbreaking as a visible turning point for a project that has spent years in planning, design, and preliminary site work. It follows earlier utility relocation contracts and environmental reviews, but is the first milestone to clearly signal the start of heavy construction on the core tunnel segment of the extension.

According to project documentation shared by the Metropolitan Transportation Authority, Phase 2 will carry the Q train north from its current terminus at 96th Street to a new multimodal hub at 125th Street. The line is intended to restore rapid transit to East Harlem for the first time in more than 80 years while easing crowding on the overburdened 4, 5, and 6 services on Lexington Avenue.

The new segment forms part of a broader vision for a full Second Avenue spine on Manhattan’s East Side, but it has also become a test case for whether New York can deliver complex urban rail projects with more predictable schedules and costs than in previous decades.

Major Tunnel Package Puts Connect Plus Partners in Lead Role

Project information and industry reports show that momentum for Phase 2 began to shift in 2025, when the MTA board approved a tunnel boring contract valued at about 1.97 billion dollars for the northern portion of the extension. The work was awarded to Connect Plus Partners, a joint venture led by Halmar International and FCC Construction, which is responsible for driving the main running tunnels between roughly 120th Street and 125th Street.

The package covers excavation of twin subway tubes, cross passages and structural shells that will later house track, systems and station finishes. Federal summaries of the project note that this tunnel contract is the single largest construction element in Phase 2 and serves as the backbone for subsequent fit-out and station work.

Publicly available information highlights that planners expect these tunnels to be in place before the end of the decade, with the boring operation itself anticipated to begin in 2027. The contract is structured to synchronize closely with other design-build packages so that follow-on works can proceed without lengthy gaps, a recurring problem in earlier generations of New York transit projects.

Analyses cited in trade publications emphasize that, despite the high overall price tag, Phase 2 is projected to have one of the lowest cost-per-rider ratios of any major heavy rail scheme currently progressing in the United States, reflecting the dense ridership potential along the East Harlem corridor.

Skanska-Led Joint Venture Wins New Design-Build Contract

In parallel with the tunnel package, another significant contract award has recently been confirmed that further strengthens the delivery framework for the Second Avenue Subway. In June 2026, press releases from the firms involved reported that a joint venture of Skanska, Traylor Bros. and Walsh Construction secured a design-build contract worth about 1.02 billion dollars for additional Phase 2 works.

Company statements describe the role of this Skanska-led team as delivering a combination of structural, civil and related elements that complement the main tunnel boring contract. Skanska has indicated that it will book roughly 498 million dollars as its share of the order, underscoring the scale of the package within the firm’s North American portfolio.

Earlier announcements from engineering firm COWI, which was appointed in 2025 as lead designer for the tunnelling and structural shell component, point to a coordinated approach in which designers and contractors are integrated from an early stage. The design-build model is intended to allow engineering refinements in response to real-world ground conditions and to reduce the risk of scope changes once construction is underway.

Taken together, the tunnel contract and the new Skanska-led package indicate that Phase 2 now has its core civil works teams in place, after years in which the project primarily advanced through studies and negotiations over funding, environmental approvals and contract strategy.

East Harlem and Regional Mobility Stand to Benefit

Planning documents for the Second Avenue Subway highlight East Harlem as one of the principal beneficiaries of the current expansion. By extending the Q line north to 106th Street and 116th Street on Second Avenue, and then west to a terminal at 125th Street and Lexington Avenue, the project will place new stations within walking distance of tens of thousands of residents who currently rely on overcrowded buses or distant subway stops.

The 125th Street terminus is being designed as a key interchange with the 4, 5 and 6 subway services and with Metro-North Railroad. Information shared through transportation agency profiles indicates that this hub is expected to shorten journeys between the Bronx, northern suburbs and the East Side of Manhattan, while providing a more direct link to major job centers in Midtown and beyond.

Estimates published in federal project profiles suggest that more than 100,000 daily riders could eventually use Phase 2 of the Second Avenue Subway. The added capacity is expected to reduce crowding on the existing Lexington Avenue line and to enhance overall resilience in a network that has long depended on a small number of north-south corridors on Manhattan’s East Side.

Urban planning analyses have also pointed to the potential for transit-oriented development around the new 125th Street complex, where separate filings indicate that the MTA has advanced proposals for new housing atop or adjacent to station infrastructure. This is seen as part of a broader strategy to pair major transit investments with new residential capacity in well-connected locations.

From Funding Uncertainty to Renewed Delivery Momentum

The latest contracts and ground-breaking activity come after a period in which Phase 2 faced questions over funding, scheduling and the impact of New York’s broader capital program. Public documents show that while federal grant commitments and state support were gradually assembled in the early 2020s, full financial closure for the extension was tied to debates over congestion pricing revenues and the timing of the MTA’s 2025 to 2029 capital plan.

By late 2024 and 2025, however, the agency had begun to finalize its contract packaging strategy, awarding an initial utility relocation contract in January 2024 and moving ahead with design services and early enabling works. The approval of the nearly 2 billion dollar tunnel contract in August 2025 marked a decisive shift from planning into execution.

Industry observers now view the Skanska-Traylor-Walsh award in June 2026, combined with the ceremonial groundbreaking, as confirmation that the Second Avenue Subway’s next phase is firmly in delivery mode. Construction activity is expected to intensify along Second Avenue and around 125th Street over the coming years, with visible impacts on streets and traffic patterns as work sites expand.

While the project remains a long-term endeavor with completion not anticipated until the early 2030s, the alignment of funding, contracts and early construction milestones has restored a sense of forward motion. For travelers across New York, the renewed momentum suggests that a long-promised new north-south line on Manhattan’s East Side is edging closer to reality.