86th Street Station Cavern Mining, and Heavy Civil Structural
Highlights
170,000 cubic yards
of blasted rock removed
Project information
The 86th Street Station cavern for the Second Avenue Subway was excavated using sequential excavation and controlled drill-and-blast. The effort created a 1,100-foot-long cavern with side tunnels and escalator ways. It added reinforced concrete lining and building demolitions.
Client:
WSP USA, MTA Long Island Rail Road, AECOM, MTA Construction and Development
Service:
General Contractor
Market segment:
Railways
Start date:
Completion date:
City:
New York
State:
New York
Country:
USA
Cost:
$326,594,841
Contact
Infrastructure
Meagan Smyth
Director, Business Development & Proposals - Northeast