June 23, 2020 - A section of Highway 417 will fully close in both directions from 8 pm on Thursday, July 2 until 6 am on Monday, July 6, resulting in significant traffic impacts. On-ramps between Carling Avenue and Bronson Avenue will also close.
Watch a livestream of the demolition/construction here.
Lane reductions and ramp closures are scheduled to start at 7 pm on Thursday, with the full closure of Highway 417 scheduled to be in place by 8 pm. The ramp from Rochester Street to the 417 West will close at 7 pm on June 30. The closures are required to replace the bridges over the CPR and Trillium Line O-Train tracks.
During the replacement, Orangeville Street will also be fully closed between Rochester Street and Booth Street.
The following detours will be in effect during the closure:
Westbound detour for Highway 417 closure
Westbound motorists must exit the highway at Bronson Avenue
Continue on Catherine Street and Raymond Street
Turn left on Booth Street
Turn right on Carling Avenue
Turn left to the Highway 417 westbound on-ramp at Carling Avenue
Eastbound detour for Highway 417 closure
Eastbound motorists must exit the highway at Carling Avenue
Turn left on Bronson Avenue
Turn right on Chamberlain Avenue
Continue onto Isabella Street
Merge left onto the eastbound Highway 417 on-ramp at Metcalfe Street