The lanes were closed for almost two days after chemical spill
On Wednesday, a transport truck leaked acid on the road, forcing the closure of all lanes on the highway between Glendale and Westchester.
The southbound lanes re-opened early yesterday morning.
OPP Sgt. Kerry Schmidt says it took a while for cleanup crews to remove the acid after it seeped into the ground below the concrete barriers on the side of the road.

Over $40,000 Raised for Day of Giving
Police Concerned After Man Released
Body Found During Home Demolition
2 Men Wanted After Lincoln Break In
Boy Severely Hurt in Lundy's Collision
Fed/Prov Volunteers Help Cleanup
Police Investigating Fatal Wainfleet Crash
Man Arrested in Relation to Child Porn