About Highway 417 — The Queensway
Highway 417 is the primary freeway through Canada's capital, Ottawa. Known to locals as "the Queensway," it runs approximately 130 kilometres from Arnprior in the west, through the entire breadth of Ottawa, to the Ontario–Quebec border east of Gloucester. East of that boundary, the highway continues as Autoroute 417 in Quebec. Through Ottawa, the highway handles the bulk of the city's through traffic and commuter movement, and is the main route for travellers crossing the capital between eastern and western Ontario.
Ottawa's Main Freeway
Through Ottawa's urban core, the Queensway is a busy multi-lane freeway with numerous interchanges serving the city's major corridors and connecting roads. Rush-hour congestion is a persistent feature of downtown and central Ottawa sections — the morning inbound (eastbound) and afternoon outbound (westbound) peaks are particularly pronounced, with backups common on weekday mornings and afternoons. Construction and maintenance projects in the urban section are a regular source of lane reductions and delays; Ottawa has been through extensive infrastructure renewal in recent years and work continues.
Ottawa is also a bilingual city and a federal government hub, meaning the highway sees heavy traffic related to Parliament Hill, the National Capital Region's large public service workforce and the many institutions and embassies in the area. Significant events — state funerals, national celebrations, protests — can also affect traffic around the capital core.
Connecting West: Highway 17 and the Ottawa Valley
West of Ottawa, Highway 417 connects to Highway 17 near Arnprior, providing the main route toward Pembroke, North Bay and ultimately Sudbury. This is the Trans-Canada corridor heading northwest through the Ottawa Valley. The Ottawa Valley receives significant snowfall in winter — the valley's geography funnels weather systems and can produce heavy, wet snowfalls that accumulate quickly. Road conditions west of the Ottawa urban area deteriorate faster than within the city, where clearing operations are more intensive. If you are heading west from Ottawa in winter, check conditions beyond Arnprior before assuming the road ahead matches what you see in the city.
Winter Driving in Ottawa
Ottawa is one of Canada's coldest capital cities, and the Queensway sees its share of winter weather. Within the urban section, road maintenance is generally very good — the city and MTO keep major corridors well treated. However, sudden snowfalls during rush hour can create difficult conditions before plows can fully treat the surface. Black ice is a hazard on overpasses and in areas where the highway passes through the green space corridors in the city's west end. The eastern sections near Gloucester and the Quebec border see cold temperatures that can make road surfaces icy even when precipitation is not present.
Key Interchanges and Connections
Major interchange points on Highway 417 include Highway 416 (the "Veterans Memorial Highway") south toward Kingston, which is a key route for travellers connecting the Ottawa area to the 401 corridor. Within Ottawa, the highway intersects with all of the city's main north-south arterials including Moodie Drive, Pinecrest, Woodroffe, Carling, Bronson, Nicholas/King Edward, and Blair Road. East of Ottawa, the Innes Road and Trim Road exits serve the growing eastern suburbs. The Quebec border interchange connects to Autoroute 417 and onward to Gatineau and Montreal.
Tips for Driving Highway 417
Check OntarioDrive and 511 Ontario before any Highway 417 trip during peak hours or in advance of a winter storm. For Ottawa commuters, the Queensway is predictably congested at rush hour — allow extra time or consider alternative routing. Visitors to Ottawa unfamiliar with the city should download a mapping application as the downtown interchanges have some complex lane configurations. If heading west toward the Ottawa Valley in winter, treat the rural sections of Highway 17 with the same caution you would any northern Ontario highway.