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ESA in Your Area

East Side Access spans three boroughs and over 8 miles of tunnels. To learn more about work taking place in your neighborhood, click the tabs above to the right.

For community related concerns, questions or additional information, please contact the Community Outreach Team (855) 4-MTAESA or at communityoutreach@mtacc-esa.info

esa project alignment map

ESA Project Alignment

East Side Access will route the LIRR through new track connections in Queens, new tunnels under Sunnyside Yard, and through the existing 63rd Street Tunnel under the East River into Manhattan, where new tunnels will curve south under Park Avenue and enter a new LIRR terminal beneath Grand Central Terminal.

37th Street to 44th Street and Grand Central Terminal


Park Avenue, between 36th and 38th Streets

Contract: CM005–Manhattan South Structures

Contractor: Michels Corporation

Work Hours - Concrete and material deliveries are permitted 7:00 AM to 7:00 PM, Monday through Friday. Personnel Access is allowed 24 hours a day, seven days a week.

The CM005 contract will utilize this location for the delivery of materials and concrete to the caverns and tunnels below.

At Completion:

A below-ground ventilation plenum and facility will introduce air into the tunnels beneath Park Avenue between 37th and 38th streets. Under normal conditions, the tunnel ventilation system will not operate. The fans will run at a reduced speed if high temperatures are experienced in the tunnels, or at full speed in the unlikely event of a smoke condition in the tunnels. Sidewalk grates and an emergency access hatch will be all that is visible at the surface.


44th Street, between Madison and Vanderbilt Avenues

Contract: CM014B – GCT Concourse and Facilities Fit Out

Contractor: GCT Constructors JV

Work Hours – Concrete and personnel access is allowed 24 hours a day, seven days a week.

This site is currently being used for materials and concrete delivery and some limited personnel access.

At Completion:

A new five story above ground ventilation facility is being constructed. Under normal conditions, the tunnel ventilation system will not operate. The fans will run at a reduced speed if high temperatures are experienced in the tunnels, or at full speed in the unlikely event of a smoke condition in the tunnels.


Grand Central Terminal, Lower Level Dining Concourse

Contract: CM014B – GCT Concourse and Facilities Fit Out

Contractor: GCT Constructors JV

Work Hours – Personnel access and construction activities are allowed 24 hours a day, seven days a week.

Work at the Lower Level Dining Concourse West Pullman Car is currently underway for the construction of structural framework and space for the future stairway and escalators that will provide passenger access to and from the new LIRR concourse when train service to Grand Central Terminal begins.

At Completion:

This will be the future site of new stairs and escalators that will provide access to and from the future LIRR Concourse below Grand Central Terminal’s Lower Level Dining Concourse.

45th Street to 50th Street


Vanderbilt Avenue between 46th and 47th Streets

Contract: CM005 - Manhattan South Structures

Contractor: Michels Corporation

Work Hours: Concrete deliveries are permitted 24 hours a day, seven days a week.

This site is currently being used for concrete delivery to the caverns and concourse below.

At Completion:

Site will be returned to its original use and state.


47th Street, between Park and Madison Avenues

Contract: CM005–Manhattan South Structures

Contractor: Michels Corporation

Work Hours – Concrete deliveries are permitted 24 hours a day 7 days a week.

Activity at this ESA worksite has been and will continue to be limited to concrete delivery to the caverns and tunnels below.

At Completion:

Site will be returned to its original use and state.


48th Street, between Park and Madison Avenues

Contract: CM014B - GCT Concourse and FAcilities Fit Out

Contractor: GCT Constructors JV

Work Hours: Surface construction will be conducted on weekdays during the hours of 7AM to midnight, with occasional overnight and weekend work.

Work at this location includes the installation of a temporary street deck, the relocation of existing utilities, and the excavation of rock and soil to support the construction of the 48th Street entrance structural shell.

At Completion:

A new entrance to both Grand Central Terminal and the future LIRR concourse and terminal.


50th Street, between Park and Madison Avenues

Contract: CM006 – Manhattan North Structures

Contractor: Frontier Kemper Constructors Inc.

Work Hours – Concrete deliveries are permitted 24 hours a day, seven days a week.

This site is currently being used for materials and concrete delivery and some limited personnel access.

At Completion:

A new ventilation facility and additional structures to support train operations and passenger spaces for the new LIRR terminal at Grand Central Terminal will be constructed at this location. A new reinforced concrete loading dock will be built in addition to a new landscaped public open space on the site.

51st Street to 63rd Street & Second Avenue


52nd Street, between Park and Madison Avenues

Contract: CM006 - Manhattan North Structures

Contractor: Frontier Kemper Contractors, Inc.

Work Hours – Concrete deliveries are permitted 24 hours a day 7 days a week.

Activity at this ESA worksite has been and will continue to be limited to concrete delivery to the caverns and tunnels below.

At Completion:

Site will be returned to its original use and state.


55th Street, between Park and Madison Avenues

Contract: CM013A 55th Street Ventilation Facility

Contractor: SCC-JPP, JV (Schiavone and Picone, JV)

Work Hours - Surface construction hours for this facility will be conducted on weekdays during the hours of 7:00 AM to midnight, with occasional overnight or weekend work.

Ongoing use of the site will be for construction of the ventilation facility, concrete and materials delivery, as well as personnel access.

At Completion:

A ventilation plenum and facility is being constructed below ground. When operational the plenum will deliver air into the tunnels beneath Park Avenue. Under normal conditions, the tunnel ventilation system will not operate. The fans will run at a reduced speed if high temperatures are experienced in the tunnels, or at full speed in the unlikely event of a smoke condition in the tunnels. At completion, the only visual indicator of the below ground facility will be sidewalk grates and a single emergency access hatch.


58th Street, between Park and Lexington Avenues

Contract: CM006 - Manhattan North Structures

Contractor: Frontier Kemper Constructors, Inc.

Work Hours - Concrete deliveries are permitted 7:00AM to 10:00PM Monday through Friday only.

Activity at this ESA worksite has been and will continue to be limited to concrete delivery to the caverns and tunnels below.

At Completion:

Site will be returned to its original use and state.


63rd Street and 2nd Avenue

Contract: CS179 - Facilities Systems Package 1

Contractor: Tutor Perini

Work Hours – 7:00 AM to 3:30 PM Monday through Friday, with occasional activities performed during overnights and weekends when necessary.

Work is underway at this location to upgrade the mechanical, electrical and communication systems in the existing ventilation facility.

At Completion:

Site will be returned to its original use and state.

Roosevelt Island to 41st Street Queens


Roosevelt Island and 41st Avenue, Vernon Boulevard to 29th Street

When the 63rd Street Tunnels for the F Line subway line was constructed, an additional set of tunnels was built below them to accommodate future train service. The five ventilation and power facilities along those tunnels in Queens and on Roosevelt Island are being retrofitted and upgraded to meet the demand of the additional LIRR trains that will run into Grand Central Terminal. Other new facilities will also be built within Queens. The work at the existing facility locations takes place inside the facility or below ground on the internal electrical components and fan equipment with utility relocation construction at several sites. On the surface, people may see construction personnel accessing the facilities as well as delivery of materials and equipment.

Contract: CQ032 - Plaza Substation and Queens Structures

Contractor: Tutor Perini

Contract: CS179 - Facilities Systems Package 1

Contractor: Tutor Perini

Contract: CM006 - Manhattan North Structures

Contractor: Frontier Kemper Constructors, Inc.

Work Hours - 7:00 AM-3:30 PM Monday through Friday only.

Construction Locations:

  • Roosevelt Island - Main Street, across from the F Line train subway stop
  • Vernon Boulevard (in Queensbridge Park)
  • 12th Street
  • 23rd Street
  • 29th Street

At Completion:

These facilities will benefit from upgrades and improvements to mostly internal components and areas. Only minimal changes to the exterior or surface of the facilities will occur. New fencing and restored landscaping will be completed at the facility in Queensbridge Park. A new brick wall to enclose surface level equipment will be constructed at the Roosevelt Island facility.


41st Avenue and Northern Boulevard

Contract: CQ032 Plaza Substation and Queens Structures

Contractor: Tutor Perini

Work Hours - 7:00AM-3:30PM Monday through Friday, with occasional weekend or overnight work.

Construction activity at this site was both extensive and complex. Work included excavation to create a deep open cut and access chamber for the tunnel boring machines which bored the tunnels and crossovers for the four tunnels into and out of Sunnyside Yards. Below Northern Boulevard, a tunnel was mined to merge the Sunnyside Yard/LIRR tracks with the 63rd Street tunnels from Manhattan.

At the surface, three new structures for power, ventilation and LIRR office space are under construction, while below ground, the Queens Plaza train interlocking and tunnels are being built.

At Completion:

A power substation and ventilation facility will provide power to the Queens Area and 63rd Street Tunnels and a separate facility for LIRR personnel. Below the surface, an interlocking will facilitate the crossovers and merging of LIRR tracks from Sunnyside Yard and Manhattan.

Sunnyside Yard and Harold Interlocking - Queens


Sunnyside Yard and Harold Interlocking; surrounding access points and areas, including 43rd Street and Barnett Avenue, 48th Street and Barnett Avenue, 43rd Street and 37th Avenue, 48th - 52nd Streets and Barnett Avenue, 39th Street and Skillman Avenue and points in and around.

Contract: CH053 - Harold Structures Part 1 and GO2 Substation
Contractor: Perini Corp.

Contract: CH054A - Harold Structures Part 2A
Contractor: Perini Corp.

Contract: CH057A - Harold Structures Part 3A - Westbound Bypass
Contractor: Harold Structures Joint Venture (HSJV)

Contract: CS084 - Tunnel systems Package 2
Contractor: EJ Electric Installation Company

Work Hours - Every effort is made to perform work for East Side Access during times when it will have the least impact on the surrounding community, however, it is often necessary due to track outage limitations to work during overnights and weekends.

Construction of various civil infrastructure elements in and around Harold Interlocking, for both LIRR and Amtrak services, including additional bridges, tracks, tunnels and various support structures and facilities.

At Completion:

The newly widened tracks will support three revenue and one non-revenue tunnels beneath Sunnyside Yard and Harold Interlocking. Support structures include access roads, power substations and ventilation facilities as well as new systems for communications, signals and power.

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