Niagara police say the crash happened late on Friday night.
Latest Traffic News - hamilton
Hamilton police say they have no estimated time for reopening of two roads affected by the crash.
Highway 427 currently runs between the Queen Elizabeth Way and Highway 7, but as of around 7 a.m. on Saturday the new northern endpoint will be Major MacKenzie Drive.
Police say a suspect fled on foot after the SUV hit a woman on Mount Albion Road.
Hamilton Police say the crash happened just before 1 p.m. on Woodhill Road at Highway 5 West.