The West Portal structure consists of a 45 foot (13.7 meter) long cut-and-cover tunnel section. DSI self-drilling hollow bolt anchors were used for the soil / rock nails and reinforced shotcrete was utilized for the face support. 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 (HBLRS).
Gall Zeidler Consultants provided analysis of and detailed design for the earth support system (soil / rock nail wall) to facilitate construction of the West Portal structure of the New Jersey Transit Authority’s Weehawken Tunnel project. The work was part of the Weehawken Tunnel Reconstruction (enlargement) Project to accommodate the new HBLRS.
North Bergen, New Jersey
Soil / Rock Nail Wall
Fill Consisting of Highly Weathered Sandstone, Diabase, and Drained Soil Conditions
Approximately $150 Million
Frontier-Kemper / Shea / Beton-und-Monierbau Joint Venture
New Jersey Transit (NJT)