Another $6-million of repair work will begin on Sarnia's Donohue Bridge Tuesday.
City Construction Manager Rob Williams says there'll be lane reductions to allow for deck and structure rehabilitation on the Vidal St. overpass.
"That involves grinding off the top of the concrete deck, doing select repairs throughout the deck on the concrete deck and then an overlay," says Williams. "It'll also include a new parapet wall to replace the antiquated steel handrail and a new parapet wall on the centre of the bridge."
The existing northbound lanes of the bridge will be closed with the existing southbound lanes being used for single lane traffic in each direction.
Sarnia council awarded the contract last month to Landform Civil Infrastructures Inc.
The pedestrian walkway that runs underneath the Donohue bridge from the end of Tecumseh St. through to the south side of the bridge will also be closed.
The project, expected to be complete by the end of November, will extend the life of the bridge for another 20 years.
Williams says the Donohue Bridge, built in 1969, has undergone deck and substructure repairs dating back to the early 1980s.
He says it's two to three times bigger than most bridges on Hwy. 402 and still has life left in it.
An October 2017 estimate of the cost of replacing the bridge came in at $32-million, not including design work and removal of the existing structure.