Chesapeake Bay bridge tunnel

Tunnel (CBBT) is a 30 km long 2-lane facility consisting of highways, bridges, tunnels (2 sections of 1.8 km each) and artificial islands (connecting tunnel and bridge sections) connecting the Eastern shore of Virginia with the Virginia mainland.
construction on water

Project facts Chesapeake Bay bridge tunnel

  • Client
    BTM JV : Bouygues (France) – Trailor Brothers (USA) – Manson Construction (USA)
  • Location
    Norfolk, West Virginia
  • In co-operation with
    Arup New York / Michael Baker
  • Project duration 
    2015 -2016
  • Country
  • Project phase

Project description

In 2015-2016 the expansion of the first of the two tunnels was tendered. The Parallel Thimble Shoal Tunnel Project will construct a new two-lane tunnel under Thimble Shoal Channel. When complete, the new tunnel will carry two lanes of traffic southbound, and the existing tunnel will carry two lanes of traffic northbound.

Scope of work

TEC was a member of a design JV led by Arup New York and covered the following scope of work:

  • Design development of immersed tunnel option
  • Review of Geotechnical FE analyses (Plaxis)
  • Assessment of the existing steel immersed tunnel with regard to the impact due to the construction of the new parallel bored tunnel
  • Marine works design of the island protection and protective works on the tunnel
  • Assessment of ship impact on the new tunnel and the protective works on top of the tunnel
  • Design temporary jetty (construction purposes)
  • Participation in (internal) design workshops and clients’ meetings

Hans de Wit - Managing Director / Senior Consultant

Hansde Wit

Managing Director / Senior Consultant