Highway 401

highway

Ontario's busiest highway and the northern boundary of Toronto's expressway grid.

Active now

Check before leaving

Ongoing context

No chronic item today

Severe upcoming

18 full closures in upcoming feed

Next item

Today

At YONGE ST

Typical worst times

Eastbound 7–10am into Toronto, westbound 3–7pm out of Toronto. Saturday afternoons in summer are also heavy.

Detour summary

Highway 7 to the north and the 407 ETR (toll) are the practical alternates. Avenue Road, Yonge, and Eglinton cannot absorb 401 volume.

Active today

Items whose reported date range includes today.

At YONGE STFull closureClosure
Apr 25, 2026 · Today
Extreme
Continuous Special Event on HWY 401 Eastbound Collector Off-ramp at YONGE ST, Toronto. ALL LANES CLOSED.
Lanes affected: ALL LANES CLOSED
At YONGE STFull closureClosure
Apr 25, 2026 · Today
Extreme
Continuous Special Event on HWY 401 Westbound Collector Off-ramp at YONGE ST, Toronto. ALL LANES CLOSED.
Lanes affected: ALL LANES CLOSED
At CARLINGVIEW DRClosure
Apr 25, 2026 · Today
Severe
Collision on HWY 401 Eastbound at CARLINGVIEW DR, Toronto. 1 right lane and right shoulder closed.
Lanes affected: 1 right lane and right shoulder closed
At REGIONAL ROAD 25Closure
Apr 25, 2026 · Today
Severe
Disabled Vehicle on HWY 401 Westbound at REGIONAL ROAD 25, Milton. Right lane and right shoulder closed.
Lanes affected: right lane and right shoulder closed
At MORNINGSIDE AVEClosure
Apr 25, 2026 · Today
Severe
Disabled Vehicle on HWY 401 Westbound EXPRESS at MORNINGSIDE AVE, Toronto. Left lane closed.
Lanes affected: left lane closed
At BAYVIEW AVEFull closureConstruction
Apr 25, 2026 · Today
Extreme
Continuous Construction on HWY 401 Eastbound On-ramp at BAYVIEW AVE, Toronto. ALL LANES CLOSED.
Lanes affected: ALL LANES CLOSED
At RENFORTH DRFull closureConstruction
Apr 25, 2026 · Today
Extreme
Nightly Maintenance on HWY 401 Eastbound On-ramp at RENFORTH DR, Toronto. ALL LANES CLOSED.
Lanes affected: ALL LANES CLOSED
At EGLINTON AVEConstruction
Apr 25, 2026 · Today
Severe
Nightly Maintenance on HWY 401 Eastbound Express Off-ramp at EGLINTON AVE, Toronto. 1 Alternating Lane(s).
Lanes affected: 1 Alternating Lane(s)

Upcoming closures and construction

Future reported items after today.

No upcoming closures or construction reported on Highway 401.