Crossrail has retendered the £375M contract to construct Farringdon Station to allow the client to strike out construction of two 400m long pilot tunnels.
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The original tender documents, published on 3 November, specifically included the need for bidders to build the pilot tunnels.
But these documents have now been withdrawn. The new tender documents give Crossrail the explicit ability to take the pilot tunnels out of the contract, giving it flexibility to reprogramme the work.
Last month Transport for London confirmed that £1.5bn in savings to Crossrail construction will be delivered, partly through a more efficient construction timetable.
This has put completion of the central section back to 2018, followed by a phased introduction of the other sections and stations.
“Economic operators should note that these works may be included within the previously published C300 Western Running Tunnels contract and may not be included in the scope of this C435 contract,” says the OJEU notice.
Tenderers have been told that they must make clear whether their decision to express an interest is dependent on whether the pilot tunnels are included or excluded.
Crossrail said it will retain the right to exclude tenderers who have not demonstrated the “requisite tunnelling capability” should the pilot tunnels be included.
The notice says a decision on this issue is expected to be made before the end of 2010, when the tunnelling contracts are awarded.
The scope of the retendered contract is still expected to include the formation of two combined platform/concourse tunnels that join the running tunnels and form the station, along with the formation of cross passages and escalator barrels.