Highway 409 is under substantial construction between July 9 and July 11. Some lane closures will be in effect, including overnight closure of the westbound 409 between the 401 and the 427. Travellers are advised to allow for extra time if they normally travel via Highway 409.

Visit the Ministry of Transportation website for more information:
http://www.mto.gov.on.ca/english/traveller/trip/traffic_report-toronto.shtml