 After leaving Wilmslow, the road is speed restricted to 40 mph or 50 mph through to the junction with the M56 motorway.The road goes down a steep hill to the Oversleyford Bridge over the river Bollin, up afterwards, and through two tunnels under Manchester Airport's runways; since 1960 it has been diverted twice here (its original route survives partly as 'Old Wilmslow Road' through the minor crossroads by the Ringway chapel).After the tunnels, the road runs to a complex traffic light controlled roundabout junction with the M56 motorway Westbound and Runger Lane (which serves as an access road to Manchester Airport; it then goes under the M56 motorway to a roundabout junction with the M56 northbound.