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News » US » Hampton Roads bidders opt for TBM method » published 3 Aug 2018

Hampton Roads bidders opt for TBM method

Latest advances in technology have resulted in the decision to use tunnel boring machines (TBMs) in preference to immersed-tube construction for the Hampton Roads Bridge-Tunnel (HRBT) Expansion.

This week both competing teams - Hampton Roads Capacity Constructors and Hampton Roads Connector Partners - notified Virginia Department of Transportation (VDOT) that they have selected the bored-tunnel method as the basis for their bid proposals, which will be submitted in late 2018.

The immersed-tube method was used to construct all 10 of Hampton Roads’ existing crossings – from the original Downtown Tunnel in 1952 to the new Midtown Tunnel in 2016. But recent technology advances have now made bored tunnels feasible in the region’s soft soils. The Parallel Thimble Shoal Tunnel, currently under construction at the Chesapeake Bay Bridge-Tunnel, is also being built as a bored tunnel for the Chesapeake Bay Bridge-Tunnel Commission.

“The selection of a bored tunnel means Hampton Roads will see some of the world’s most sophisticated tunnel technology at work,” said VDOT commissioner Stephen Brich. “Once complete, this new crossing will greatly improve accessibility, transit, emergency evacuation, and military and goods movement along the I-64 corridor.”

 

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This article was published on 3 Aug 2018 (last updated on 3 Aug 2018).

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