A worker dismantles scaffolding in the Connaught Tunnel section of the Crossrail construction project in East London on Monday. Work is taking place to deepen, strengthen and widen the structure to ensure it is ready for the arrival of Crossrail trains, which will link central London with Maidenhead in the west and Shenfield in the east, upon its expected completion in 2018. The 1,800-foot-long tunnel was built in 1879 but has been derelict since 2006.
