The newer I-64 uses Rockfish Gap, a lower elevation wind gap which was also selected for a vital railroad crossing by Virginia's legendary 19th century state engineer, Claudius Crozet. Even that crossing, at Afton Mountain, can be very treacherous, and has been particularly notorious for accidents during reduced periods of visibility, motivating the state to install an innovative pavement lighting system. East of the mountain, I-64 passes Charlottesville and has easy grades on its way to Richmond.