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416TRAFFIC/ know before you go

416 TRAFFIC/ROADS/HIGHWAY 403

Highway● LIVE

Highway 403

Highway 403 runs from Mississauga through Oakville and Hamilton to Woodstock, paralleling the QEW for part of its length.

Active today

2

0 full, 2 partial

Long-running

0

No 30+ day closures

Severe upcoming

0

No new full closures

Upcoming · 30d

1

Closures in next 30 days

★ Typical worst times

Eastbound 7–9am into Mississauga and Toronto, westbound 4–7pm.

★ Detour summary

The QEW handles overflow east of Hamilton; Dundas Street is a slow surface alternate.

/01

Active today

Eastbound

1 closure

BURNHAMTHORPE ROAD and WINSTON CHURCHILL BLVD1 Right Lane(s)
Nightly Maintenance on HWY 403 MISSISSAUGA Eastbound between BURNHAMTHORPE ROAD and WINSTON CHURCHILL BLVD, Mississauga. 1 Right Lane(s).

Westbound

1 closure

ERIN MILLS PKWY and WINSTON CHURCHILL BLVD2 Alternating Lane(s)
Nightly Construction on HWY 403 MISSISSAUGA Westbound between ERIN MILLS PKWY and WINSTON CHURCHILL BLVD, Mississauga. 2 Alternating Lane(s).

/02

Upcoming closures

Eastbound

1 closure

WINSTON CHURCHILL BLVD and ERIN MILLS PKWYMay 4 → May 9
Nightly Construction on HWY 403 MISSISSAUGA Eastbound between WINSTON CHURCHILL BLVD and ERIN MILLS PKWY, Mississauga. 2 Alternating Lane(s).

/100

Driving in on the 403?

Commuter route pages stitch closures into the leg-by-leg journey

QEW over the Burlington Bay Skyway, then into the Gardiner