Weehawken Tunnel West Portal Retaining Wall

New Jersey Transit Authority Hudson Bergen Light Rail Transit

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Slope Stability Analysis, Design, and Consulting:

The Weehawken Tunnel Project consisted of the rehabilitation of an approximately 4,200 foot (1,280 meter) long, 23 foot (7 meter) wide excavated tunnel from a double-track freight rail to a double-track light rail system. The project also included a large underground station cavern, an approximately 40 foot (12 meter) diameter elevator shaft, and extensive portal slope stabilization and drainage measures. In order for the 120-year-old Weehawken Tunnel to be reconstructed, a deteriorating slope at the west approach to the tunnel needed to be stabilized.

Gall Zeidler Consultants (GZ) provided Slope Stability analysis and design services for a heavyweight retaining wall made of individual cast-in-situ concrete blocks. In 2009, the design was honored with the Community Service Award for its excellence in construction and renovation of the Hudson-Bergen Light Rail Transit System (HBLRTS).

LOCATION:
North Bergen, New Jersey
DATE:
2005 – 2006
STRUCTURE:
Retaining Wall
LENGTH:
9 feet (3 meters)
GEOLOGY:
Highly Weathered Sandstone
COST:
Approximately $150 Million
CLIENT:
Twenty First Century Rail Corporation
OWNER:
New Jersey Transit (NJT)