Poor weather forces full closure of major Northern Ontario route; motorists urged to stay informed and prepared

UPDATE (10:52 a.m.): #Hwy17 has reopened between #Marathon and #WhiteRiver. #Nipigon to Marathon remains closed in both directions. Motorists are reminded to drive according to weather and road conditions.

THUNDER BAY – NEWS – A full closure is in effect for Highway 17 between Nipigon and Marathon due to deteriorating winter road conditions. The Ontario Provincial Police and Ministry of Transportation (MTO) have shut down the stretch of highway as of Monday evening, citing safety concerns amid snow, ice, and reduced visibility.

The closure affects all lanes and traffic in both directions, creating significant travel disruptions across Northern Ontario’s primary east-west corridor.

Motorists are advised to avoid non-essential travel in the area and stay up to date with real-time road conditions by visiting 511on.ca and monitoring weather alerts via Environment Canada.

What Motorists Should Pack for Winter Travel

Winter driving in Northwestern Ontario can be unpredictable. Whether you’re facing delays, closures, or emergencies, having the right supplies in your vehicle can make a big difference in safety and comfort. Here’s what you should always carry:

• Winter-rated windshield washer fluid

• Extra warm clothing and blankets

• Non-perishable snacks and water

• Battery booster cables

• Snow brush and ice scraper

• Shovel and traction aids (like sand or kitty litter)

• Flashlight with extra batteries

• First-aid kit

• Fully charged phone and car charger

• Road flares or reflective warning triangles

• Extra fuel (if safe and legal to carry)

Stay Safe and Plan Ahead

Highway 17 is a vital transportation route for residents, commercial drivers, and travellers across the region. Authorities remind all drivers that closures can occur with little notice in winter months and urge everyone to check road and weather conditions before heading out.

NetNewsLedger will continue to provide updates as they become available. Please stay safe and stay connected.

For immediate road condition updates, visit: www.511on.ca
For the latest weather alerts: www.weather.gc.ca