Gerrards Cross Tunnel is a railway tunnel in Gerrards Cross, Buckinghamshire, on the Chiltern Main Line. The purpose of the tunnel was to enable a new Tesco supermarket to be built over the railway line. Plans were initially met with anger by local residents, and the council refused planning permission but this decision was overturned by John Prescott. Despite the incident, the construction continued in 2007 with different contractors building the tunnel. The store opened in November 2010, fourteen years after the project was commissioned.