Second Avenue Subway Phase 2: Connect Plus Partners’ $1.97B Contract

Connect Plus Partners wins $1.97B contract for Second Avenue Subway Phase 2, extending the Q Line to 125th Street.

Second Avenue Subway Phase 2: Connect Plus Partners’ $1.97B Contract
September 6, 2025 4:13 am
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Introduction

Connect Plus Partners has been awarded a USD 1.97 billion contract by Governor Kathy Hochul and the Metropolitan Transportation Authority (MTA) for tunnelling and station shells on Phase 2 of the Second Avenue Subway expansion. This phase will extend the Q Line 1.5 miles north from 96th Street to 125th Street, adding three new stations.

Main Content

Contract Award Details

The awarded contract, valued at USD 1.97 billion, is for tunnel boring and station shells. It also includes the rehabilitation of unused tunnels built in the 1970s. This is the second of four major construction packages for Phase 2.

Project Scope and Funding

Phase 2 will add new stations at 106th Street, 116th Street, and 125th Street. The USD 7.7 billion project is supported by a USD 3.4 billion grant from the Federal Transit Administration. Additional funding will come from New York’s congestion pricing programme, expected to begin in 2026.

Construction Methods and Timeline

Two tunnel boring machines will be used north of 120th Street. South of 120th Street, contractors will use cut-and-cover methods and existing infrastructure. The project is scheduled for completion in 2032. The first contract, worth USD 182 million, was awarded in 2023 for utility relocation and building preparation.

Historical Context and Impact

The Second Avenue Subway project has been planned since 1929. Phase 1, which extended the Q Line from 63rd to 96th Street, opened in 2017 at a cost of USD 4.45 billion. The MTA projects the extension will serve over 100,000 daily riders. Community leaders have raised concerns about potential displacement of small businesses.

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Conclusion

The Second Avenue Subway Phase 2 expansion, with a total cost of USD 7.7 billion, will extend the Q Line to 125th Street. The project is supported by federal grants and congestion pricing revenue, with completion expected in 2032. The expansion aims to alleviate congestion and improve accessibility in East Harlem.

Company Summary

Connect Plus Partners: Awarded a USD 1.97 billion contract for tunnelling and station shells on Phase 2 of the Second Avenue Subway expansion.

Metropolitan Transportation Authority (MTA): Oversees the Second Avenue Subway project.

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