As part of the Metrolinx Finch West LRT project, sections of the Highway 400 at the Finch Avenue West interchange will be closed for a second consecutive weekend, June 19-22, in alternating directions to allow crews to replace the Highway 400 Bridge in stages.
The Highway 400 closures will be required from Friday at 10 p.m. to Monday at 5 a.m.
During the first weekend of the closure (June 12-15, 2020), the southbound section of the Highway 400 Bridge were removed and then replaced with a new bridge deck and pre-cast steel girders. The northbound section of the Highway 400 Bridge will be replaced using the same approach this weekend (June 19-22, 2020).
Prior to the planned weekend closures, there will be lane reductions on Finch Avenue West from 7a.m. on Thursday to 6 p.m. on Friday. Road closures of Finch Avenue West and of all Highway 400 on/off ramps at Finch Avenue will begin at 6 p.m. and continue to Monday at 5 a.m.
Mosaic Transit Group is using an innovative engineering technique called a Rapid Bridge Replacement (RBR) to replace the bridge, which will reduce the amount of time required for road closures from years to just two weekends and a few nighttime closures. Our crew reduced the impacts on traffic by constructing the new decks and installing the pre-cast girders in two nearby lots.
The work site for the new deck installation will be on Finch Avenue West between Norfinch Drive/Oakdale Road and Signet Drive/Arrow Road below the Highway 400 bridge.
Click the links below for detailed info regarding uninterrupted closures on the highway, onramps, and local roads: