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Grand Rapids Medical Corridor North Pedestrian Tunnel

Coordinates: 42°58′13.8″N 85°39′55.4″W / 42.970500°N 85.665389°W / 42.970500; -85.665389
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Grand Rapids Medical Corridor North Pedestrian Tunnel
pedestrian tunnel under Michigan Street
Overview
LocationGrand Rapids, Michigan
Coordinates42°58′13.8″N 85°39′55.4″W / 42.970500°N 85.665389°W / 42.970500; -85.665389
Statusopen
StartButterworth Hospital
EndLemmen-Holton Cancer Pavilion
Operation
Work begun15 December 2005
Constructedexcavated through grouted glacial till, shotcrete lined
Opened26 May 2006
OwnerCorewell Health
Characterpedestrian tunnel
Technical
Length130 feet (40 meters)
Tunnel clearance20 feet
Gradelevel

The Grand Rapids Medical Corridor North Pedestrian Tunnel is a tunnel in Grand Rapids, Michigan connecting the Lemmen-Holton Cancer Pavilion with Butterworth Hospital and Helen DeVos Children's Hospital.

Construction

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The tunnel passes under Michigan Street, a busy thoroughfare in the Grand Rapids Medical Mile. Construction was accomplished using the New Austrian tunneling method without disrupting the traffic moving on the street above.[1] The tunnel was mined[2] through glacial till, which was grouted with sodium silicate to stabilize it prior to digging the tunnel.[3] 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

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  1. ^ Almeraris, Gary; Mariucci, Bill, eds. (2009) [2007]. "NATM Through Clean Sands- The Michigan Street Experience". Rapid Excavation and Tunneling Conference: Proceedings 2007. SME. pp. 988–997. ISBN 978-0-87335-304-5.
  2. ^ "Grand Rapids Medical Corridor North Pedestrian Tunnel". Gall Zeidler Consultants. Archived from the original on 6 March 2012. Retrieved 4 July 2010.
  3. ^ Nicholson Construction (2010). "Michigan Street Tunnel". Retrieved 4 July 2010.