Crossrail has awarded a £40m contract to a Costain Skanska joint venture (JV) to build ventilation and access shafts at Eleanor Street and Mile End Park in east London, UK.
Construction is scheduled to start on the C360 contracts at both sites, during the second half of 2012.
Barhale Construction, BAM Nuttal Kier JV, Costain Skanska JV, Dragados Sisk JV, Ferrovial Agroman and Morgan Sindall are the six firms involved in the tender.
According to Crossrail, the deal is in line with European procurement rules and is subject to a ten-day standstill period.
Crossrail programme director Andy Mitchell said that to enable future rail services to operate through the new rail tunnels, ventilation and access shafts are required to be constructed at various locations along the route, including Eleanor Street and Mile End Park in east London.
"We are working closely with the London Borough of Tower Hamlets and Greenwich Leisure Ltd to ensure that Mile End Park's sports facilities remain fully accessible throughout the works," Mitchell said.
The shafts, which will extend about 30m below the ground, will house ventilation and emergency exit facilities between Stratford and Liverpool Street stations.
Work at the Mile End site will incorporate the relocation of a coach park and all-weather football pitch, which will both be rebuilt and operational before the start of work on the Crossrail shaft.
The ventilation shafts along the Crossrail route have been designed to ensure optimal air movement within the tunnels, and they will also be used to extract warm air released by the air conditioning units on the Crossrail rolling stock.