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ESA in Your Area

East Side Access spans three boroughs and over 11 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


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. Contract personnel will access the tunnels and caverns through the guard shack located on the corner of 37th Street and Park Avenue. A personnel facility to support the workers is located on 37th Street at Madison Avenue.

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 ventilation system will not operate. The fans will run only if a train is occupying the tail tracks and temperature in the tunnel exceeds 105 degrees, or 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.


43rd Street, between Madison and Vanderbilt Avenues

Contract: CM005 – Manhattan South Structures

Contractor: Michels Corporation

This street-level location is being used to store equipment and materials for the work underway on 44th Street, one block north.

At Completion:

This site will be returned to its original use and state at completion.


44th Street, between Madison and Vanderbilt Avenues

Contract: CM005 – Manhattan South Structures

Contractor: Michels Corporation

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 ventilation system will not operate. The fans will run only if temperature in the tunnel exceeds 105 degrees, or in the unlikely event of a smoke condition in the tunnels.

45th Street to 50th Street


Vanderbilt Avenue between 46th and 47th Streets

Contract: CM006 - Manhattan North Structures

Contractor: Frontier Kemper, Inc.

Work Hours: Concrete deliveries are permitted between the hours of 8AM- 6PM Tuesday through Thursday and after regular business hours every day of the 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.


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.


50th Street, between Park and Madison Avenues

Contract: CM006 – Manhattan North Structures

Contractor: Frontier Kemper Constructors Inc.

Work Hours – Concrete deliveries are permitted 3:00 PM – 7:00 PM, 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, 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.

Utility relocation and excavation is completed for the planned ventilation facility and plenum. A steel roadway deck was installed to enable the contractor to continue to work below ground while keeping the street open for automobiles and pedestrians. Ongoing use of the site will be for construction of the 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 ventilation system will not operate. The fans will run only if temperature in the tunnel exceeds 105 degrees, or 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

Work Hours - 7:00 AM to 10:00 PM 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. The work at these locations takes place inside the facility or below ground on the internal electrical components and fan equipment. On the surface, people may see construction personnel accessing the facilities as well as delivery of materials and equipment.

Contract: CS179 - Facilities Systems Package 1

Contract: CM006 - Manhattan North Structures

Contractor: Tutor Perini

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

Active Contract: CQ032 Plaza Substation and Queens Structures

Contractor: Tutor Perini

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

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 Completion:

Below the surface, these structures will facilitate the crossovers and merging of LIRR tracks from Sunnyside Yards and Manhattan. A power substation, currently being erected, will provide power to the Queens Area and 63rd Street Tunnels, as well as office space for LIRR personnel.

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, 39th Street and Skillman Avenue and points in and around.

Active Contracts/Contractors: CH053/54 - Harold Structures Part 1 and Part 2 and GO2 Substation/Perini Corp

CH057A - Harold Structures Part 3A/ Harold Structures JV

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.

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