Crossrail’s Liverpool Street station will serve the City of London and provide interchanges with London Underground’s Northern, Central, Metropolitan, Circle and Hammersmith & City Lines, connections to Stansted airport and National Rail services at Liverpool Street and Moorgate stations.
It will be located below London Underground’s (LU) existing Liverpool Street and Moorgate stations with both stations providing access to the Crossrail station.
At the eastern end of the Crossrail station, a new Crossrail ticket hall will be constructed beneath Liverpool Street close to the Broadgate development. The new ticket hall will provide step-free access from street level to the new Crossrail platforms. Nearby, a 40m-deep box structure will be located on Blomfield Street to accommodate ventilation, electrical, mechanical and systems equipment.
At the western end, a further new ticket hall will be built by developing the existing Moorgate station ticket hall. The development in which this is housed also contains a 33m-deep draught relief shaft, which has already been built in its lower basement to aid the Crossrail development.
A section of Finsbury Circus has been temporarily acquired during the construction of Crossrail’s Liverpool Street station for two purposes; first, to enable construction of the platform tunnels via a temporary construction shaft and second, to accommodate construction facilities including site offices. Following completion of the works, Finsbury Circus will be restored to its original condition.
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Gallery - architects impression images of Liverpool Street Station
The design of the station is currently being progressed by teams of consultants appointed in mid 2009. The lead design consultant is Mott Macdonald who are responsible for overall station design, including enabling works to create space for the new infrastructure, passenger modelling and space-proofing, architectural, civil and structural, and mechanical and electrical systems that serve the station.
A dedicated Sprayed Concrete Lining (SCL) tunnel design team, also awarded to Mott Macdonald, has been mobilised on the project to standardise the approach to this specialist discipline. The connection between Crossrail and London Underground’s Northern Line at Moorgate involves a particularly challenging SCL stairway construction directly beneath an existing escalator, at deep level, adjacent to the Northern Line platforms. The design team is working closely with London Underground and industry experts to develop a safe construction method that minimises disruption to rail passengers, and are co-ordinating with other specialist line-wide design teams.
The station design is being progressively advanced through RIBA Stages D, E and F. The two Ticket Hall designs at each end of the station have recently achieved RIBA D stage, the Moorgate Shaft has achieved RIBA E, with all other station elements well advanced into RIBA E design.
At the eastern end of the Crossrail station, significant enabling works are required to relocate existing London Underground assets to create the space for new Crossrail infrastructure. This work will involve constructing a replacement Communications Equipment Room (CER), a Powerlink substation, various switch rooms and carrying out a number of railway utility diversions.
When the CER relocation is complete, space will become available to begin a complex series of public utility diversions from the roadway in Liverpool Street into a newly built utility corridor. This will enable construction of the new Broadgate ticket hall at the eastern end of the Crossrail station. Similarly, public utilities will be diverted at the western end.
Delivering a complex programme of advanced works is one of the most significant early challenges at Liverpool Street. This will enable main construction contractors to break ground in 2011 when contracts for diaphragm walling to form Moorgate Shaft, and Sprayed Concrete Lining works to form platform tunnels, escalator shafts and underground passageways are set to mobilise. The award of the contract for the construction and fitting out of the remainder of the station will follow later in 2011.