OWNER / AGENCY
Gateway Development Commission
MARKET
Tunnels →LOCATION
Hudson River, NJ–NY
INSTRUMENT TYPES
15 deployed
Project overview
Instrumentation for the new Hudson River rail tunnel, approach shafts and North River Tunnel rehabilitation.
The Gateway Tunnel Program is a vital interstate rail infrastructure initiative overseen by the Gateway Development Commission (GDC) to double trans-Hudson passenger rail capacity. The scope encompasses the construction of a new two-track heavy rail tunnel beneath the Hudson River, complex approach shaft excavations through the Palisades and Manhattan, and the comprehensive rehabilitation of the historic North River Tunnels to ensure long-term regional rail resilience.
Instrumentation & services deployed
15 types
PS
Pre- & Post-Construction Condition Photo Survey
AMTS
Automated Motorized Total Station
AOP
Airblast Overpressure Microphone
DMP
Optical Deformation Target / Monitoring Prism
INC
Inclinometer
MSP
Manual Survey Point
NM
Real-Time Sound Level & Acoustic Monitor
OW
Observation Well
PZM
Piezometer
SAA
Shape Array
SP
Settlement Plate
SSP
Surface Settlement Point
TM
Tiltmeter
UMP
Utility Monitoring Point
VM
Vibration Monitor
Instrument codes follow the legend on the Projects index. Detailed scopes, contract values, and references available on request.
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