A new asphalt runway surface was laid between November 2006 and March 2007, at a cost of £17M. Within this period, on 29 December and 3 January, there were four incidents of reduced braking action in wet conditions on the temporary surface, including two in which aircraft left the runway. From 5 January, ten airlines, led by EasyJet, cancelled or diverted their Bristol flights. The airport closed the runway on 7 January to cut grooves into the surface to improve water runoff, and flights resumed the next day.