by Jody Kotkin | Feb 14, 2022 | Bored Tunnels, Tunnels & Underground Construction
SR99 is a $1.9 Billion WashDOT project. The tunnel is approximately 2 miles long and will replace the aging Alaskan Way Viaduct that was damaged in the Nisqually earthquake in 2001. Eldon Abbott, PE served as the Task Lead for the development of the Design-Build...
by Jody Kotkin | Feb 14, 2022 | Underground Parking Garages
Beth Israel Hospital (BIH) is a $96 million health care facility on Longwood Avenue. The new 12-story clinical center, completed in 1993, included a five-level, 750-car below-grade parking garage. Eldon Abbott, PE served as the Project Manager for the underground...
by Jody Kotkin | Feb 14, 2022 | Drop Shafts, NATM/SEM Tunnels, Tunnels & Underground Construction
Emad Iskander, Ph.D., PE performed the design review of slurry wall shafts, Sequential Excavation Method (SEM) adits connecting to the tunnel, and support of excavation for near-surface structures. The century-old combined sewer system in the District of Columbia was...
by Jody Kotkin | Feb 14, 2022 | NATM/SEM Tunnels, Tunnels & Underground Construction
The Plane Train tunnel project included developing of a 700-foot-long tunnel extension to the existing Plane Train automated people mover (APM) beyond the airport’s domestic baggage claim terminus station. This extension created a more efficient train turn-around...
by Jody Kotkin | Feb 14, 2022 | Immersed Tube Tunnels, Tunnels & Underground Construction
Fort Point Channel Tunnel is a concrete immersed tube tunnel constructed as part of Boston’s Central Artery/Tunnel project. Tony Lancellotti, PE served as the Lead Engineer for the Type Study of various tunnel alternatives for this crossing including steel shell,...