Mavis/Chinguacousy Roads

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Peel Regional Road 18.svg

Mavis Road
Peel Regional Road 18
Mavis Rd. within Mississauga
Route information
Maintained by City of Mississauga
(south of Hwy. 407)
Region of Peel (north of Hwy. 407)
Length15 km (9 mi)
Major junctions
South endPeel Regional Road 20.png Queensway (Continues as Stavebank Road)
 Dundas Street
Burnhamthorpe Road
 Highway 403
Eglinton Avenue
Peel Regional Road 3.svg Britannia Road
 Highway 401
Peel Regional Road 5.svg Derry Road
 Highway 407
North endPeel Regional Road 15.svg Steeles Avenue (Continues as Chinguacousy Road)
Highway system
Roads in Ontario
Nearby arterial roads
← Erin Mills Parkway/Mississauga Road Mavis Road Hurontario Street →

Mavis Road and Chinguacousy Road are a pair of interlined roads in Peel Region, Ontario, Canada, running in the cities of Mississauga, Brampton, and the Town of Caledon. Their combined lengths are approximately 37 kilometres (23 miles).

Mavis Road[edit]

The former northern terminus of Mavis Rd. at Britannia Rd. in 1991.

Mavis Road begins at Queensway, as a continuation of Stavebank Road (a residential street), and runs north to Steeles Avenue, where Chinguacousy Road takes over. Between Highway 407 and Steeles Avenue, it is maintained by Peel Region and designated as Peel Regional Road 18.[1]

Unlike most major roads in Peel, and the Greater Toronto Area in general, Mavis Road was largely built in modern times. Only the southernmost portion was part of Peel's original concession road grid, and was named Stavebank Road, parts of which still bear that name (see above). The section north of Queensway was later renamed Mavis Road and was reconstructed as a major thoroughfare when the area became more developed. It was extended north of its original terminus at Eglinton Avenue to Britannia Road. in 1991, and then extended north of Highway 401 (where a new interchange was constructed) in 1999 to its current terminus at Steeles Avenue. To connect with Chinguacousy Rd. at Steeles, the Mavis extension had to veer westwards from its main alignment and displaced Second Line West (which was subsequently either closed or broken up into various local streets) as the primary artery southwards.

The CPR level crossing north of Dundas Street, since replaced by an underpass, was the site of the infamous 1979 Mississauga train derailment.


Chinguacousy Road
Route information
Maintained by City of Brampton
Town of Caledon
Length22 km (14 mi)
Major junctions
South endPeel Regional Road 15.svg Steeles Avenue (Continuation of Mavis Rd.)
 Peel Regional Road 6.svg Queen Street
Williams Parkway
Peel Regional Road 107.png Bovaird Drive
Sandalwood Parkway
Peel Regional Road 14.svg Mayfield Road
Peel Regional Road 9.svg King Street
North endDead ends north of Peel Regional Road 12.svg Old Base Line Road
Highway system
Roads in Ontario
Nearby arterial roads
← Mississauga Road Chinguacousy Road Main Street/
Hurontario Street; Highway 10 →

Chinguacousy Road[edit]

Chinguacousy Road continues Mavis north of Steeles Avenue, following the original Second Line alignment for its entire length. In Brampton, heavy residential subdivision construction is ongoing in the areas along the west side of the road for nearly its entire distance through the city. A short distance north of Steeles it crosses the Orangeville-Brampton Railway tracks, and just south of Bovaird Drive (a downloaded portion of Highway 7, now Peel Regional Road 107), passes over the Canadian National line carrying GO Transit's Kitchener Line. It enters rural Caledon north of Mayfield Road (Peel Regional Road 14), traversing farmlands before entering the scenic Oak Ridges Moraine, near the community of Boston Mills, where it crosses the OBR tracks again. The road jogs at Boston Mills Road at the Credit River, and a short distance north passes the Caledon Trailway,[2] which is a part of the Trans-Canada Trail network. It continues past Old Base Line Road (Peel Regional Road 12) and dead ends after 0.7 km (0.4 mile).


  1. ^[permanent dead link]
  2. ^ "Caledon Trailway". Ontario Trails.