The Challenge

  • Minimize disruption during construction
  • Enhance commuter rail capacity

The East Side Access (ESA) project in New York City connected the Long Island Rail Road’s (LIRR) Main and Port Washington lines in Queens to a new LIRR terminal beneath Grand Central Terminal in Manhattan. The connection increased the LIRR’s capacity into Manhattan, dramatically shortening travel time for Long Island and eastern Queens commuters traveling to the East Side of Manhattan.

The Solution

Geocomp offered a complete geotechnical data management solution, which enabled the ESA project team to determine whether excavation, tunneling, or construction activities had any adverse effects on surrounding structures.

Geocomp collected and managed a vast amount of data from more than 13,000 geotechnical instruments and provided a web-based data management system, iSiteCentral®, allowing data to be processed, presented, and reported in a timely, accessible, and understandable manner.

Using our web-based data management system, iSiteCentral®, all instruments were monitored and continuous review of data collected and processed. Geocomp also collected readings from instruments which needed to be read manually.

Services Provided

Instrument Installation

Provided installation of various geotechnical instruments

Data Management

Real-time monitoring using web-based data management

Related Projects

GEOPROJECT_East Side Access Tunnel Excavation

East Side Access Tunnel

Value Delivered:

Automated instrumentation provided alerts to
unacceptable movement during construction
Instruments installed designed to be read remotely
and notification automatic
Dramatically shortened travel time for commuters
GEOPROJECT_Central Artery Tunnel

Central Artery/Tunnel

Value Delivered:

Helped avoid major cracking of adjacent structures
Under budget, extended monitoring by 25 years
Kept construction movements within tight tolerances
Detected movements and issued project alerts
GEOPROJECT_Canopy Hotel

Canopy Hotel Boston (Parcel 9)

Value Delivered:

Monitor tunnel ceiling for public safety during
construction
Provide 24/7 automated monitoring and alerts for
informed decision making
Customize liquid-level monitoring for project needs

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