The project involves extensive utility relocations, streetscape modifications, and building underpinning / strengthening and modification along 2^nd Ave in NYC to prepare for future construction of the 106^th St Station and running tunnel connections.

Tectonic Engineering has been selected by NY’s Metropolitan Transportation Authority (MTA) to lead construction management services for Contract #1 of the Second Avenue Subway Phase 2 (SAS II) project. The $7.7 billion SAS II project is a transformative rail transit infrastructure initiative that will significantly reshape New York City’s transportation landscape by adding a new subway line along Manhattan’s east side, which has not seen subway service since the removal of elevated lines in the mid-1900s. This initial $182 million construction contract is the first of four construction contracts for the new line, which will extend the Q​train from 96 St. (it’s current terminus) to 125 St., serving more than 100,000 average daily riders and building three new ADA-accessible stations for the East Harlem community.

“Tectonic is extremely proud to have been entrusted by the MTA to provide CM services for this crucial component of work,” says Vice Present and Rail & Transit Lead for Tectonic Engineering, Jesse Heimowitz. “We’re not just helping construct a subway line; we’re weaving critical infrastructure through the intricate fabric of one of NYC’s most densely populated neighborhoods, which is a challenge we are excited to tackle head on.”

The major component of this contract involves complex relocation of all underground utilities from 105 St. to 110 St. on Second Avenue at the site of the future 106 St. Station.  Utilities requiring relocation include water, sewer, communication, and electrical, as well as the shifting of a sensitive oil-o-static line providing high voltage transmission services for Con Ed’s Manhattan customers. This work will facilitate the subsequent cut-and-cover construction of the station and connections to running tunnels. Advancing utility relocation ahead of station and tunnel construction is a major lesson learned from Phase 1 of Second Avenue Subway, which will help to reduce unnecessary costs and delays on SAS II. This construction contract also includes temporary streetscape modifications that will be required to facilitate future construction, including new bike lanes to replace those that will be impacted by construction on Second Avenue, as well as building remediation, strengthening, and modifications in preparation for future excavation for the new station’s construction. The construction contract was awarded to CAC Industries, a family-owned heavy civil contractor based in New York City specializing in infrastructure projects, earlier this year.

“MTA’s Second Ave Subway Phase 2 is more than just a rail transit infrastructure project – it’s a critical piece of NYC’s future,” Heimowitz added. “To be a part of returning subway service to such an amazing community and reinstating their connectivity to the NYC’s Subway network is something everyone on the project team takes a lot of pride in.”

Tectonic’s expertise and capabilities in the CM sector includes two critical market services encompassed by this SAS II assignment: Rail & Transit and Public Infrastructure. In the Rail & Transit sector, Tectonic serves as a prime consultant for the MTA, currently providing project management and construction management (PM/CM) services across several significant tri-state area initiatives. These projects include the Long Island Rail Road’s Hall Interlocking Expansion Design Build, as well as multiple New York City Transit subway system improvements, such as the rehabilitation of 10 stations across 3 lines and the upgrade of 12 circuit breaker houses, 3 substations, and 3 electrical distribution rooms. Tectonic is also providing construction inspection and project management services for Boldyn Networks, supporting the long-anticipated implementation of cellular service within MTA subway tunnels. In the Public Infrastructure realm, Tectonic maintains a longstanding partnership with NYC’s Department of Design and Construction, where they specialize in providing PM/CM services for comprehensive street reconstructions involving utility relocations, improvements, and upgrades.