Mavis/Chinguacousy Roads

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.

Public Transit

In Missisauga, Route 61 serves the Route. It runs from the City Centre Transit Terminal south of Highway 403 and north to Sheridan College, near the road's intersection with Steeles Avenue during the week.[2] Route 61 does not serve Mavis Road north of Crawford Mill Avenue (south of Derry Road) on the weekends.[2]

Chinguacousy Road
Route information
Maintained by City of Brampton Town of Caledon
Length	22.6 km (14.0 mi)
Major junctions
South end	Dead end north of Highway 407
	Mavis Road ----Subsumed by Mavis Rd.---- Steeles Avenue Queen Street Williams Parkway Bovaird Drive Sandalwood Parkway Mayfield Road King Street
North end	Dead ends north of Old Base Line Road
Highway system
Roads in Ontario Nearby arterial roads ← Mississauga Road Chinguacousy Road Main Street/ Hurontario Street; Highway 10 →

Chinguacousy Road essentially continues Mavis Road north of Steeles Avenue, though it officially begins as a minor dead end street north of Highway 407, which provides access to the Korean War National Memorial and Meadowvale Cemetery. It joins Mavis at Ray Lawson Boulevard where Mavis curves from the southeast to join the Second Line alignment (which Chinguacousy follows for its entire length), resulting in Chinguacousy being briefly subsumed by Mavis for 0.8 km (0.5 m.) south of Steeles. 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,[3] 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).