 Further east, the embankment was bisected by the London end of the M11 motorway in 1977, a concrete bridge carrying the line over the road.Chigwell and Grange Hill were built in cuttings, Hainault and Fairlop on embankment, and most of the route south of Barkingside including Newbury Park was in a cutting.Only the platforms at Roding Valley and Barkingside (eastbound only) are accessible from street level.