Location Grand Rapids, Michigan Work begun 15 December 2005 Character pedestrian tunnel Owner Spectrum Health Start Butterworth Hospital | Status open Opened 26 May 2006 Length 40 m End Cancer Hematology Center | |
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Constructed excavated through grouted glacial till, shotcrete lined | ||
The Grand Rapids Medical Corridor North Pedestrian Tunnel is a tunnel in Grand Rapids, Michigan connecting the Lemmen Holton Oncology Center with Butterworth Hospital and Helen DeVos Children's Hospital.
Construction
The tunnel passes under Michigan Street, a busy thoroughfare. Construction was accomplished using the New Austrian Tunneling method without disrupting the traffic moving on the street above. The tunnel was mined through glacial till, which was grouted with Sodium silicate to stabilize it prior to digging the tunnel. The tunnel is lined with 15 inches (380 mm) of shotcrete.
In 2007, it received the ABC/WMC Construction Award from the Associated Builders and Contractors–Western Michigan Chapter.
References
Grand Rapids Medical Corridor North Pedestrian Tunnel Wikipedia(Text) CC BY-SA