Contract C340 also involves the realignment of 420m of the Docklands Light Railway between Custom House and Victoria Dock Stations to release the site for portal construction.
The 355m long and 12m wide tunnel portal will be built in two phases to allow for the launch and recovery of tunnel boring machines during 2014.
The successful contractor will be responsible for temporary works design including control of ground movement, and be asked to improve buildability and mitigate risk on the project during the pre-construction phase.
Firms have until 28 August to complete the PQQ process and must register an interest on the Crossrail eSourcing Portal(www.crossrail.bravosolution.co.uk)