Transportfan
Senior Member
Mississauga's mighty Erin Mills Parkway follows what was once Fifth Line, a minor concession road. Nothing unusual in major arterials following old concessions, but in this case there were several bypassed sections and even a complete abandonment of Fifth Line:
In the 1954 pic, Fifth Line had this odd course shift (and a long farm driveway, later made into a street, running west off of it) north of the QEW , and only had an at-grade intersection with the QEW where it continued south (as Erin Mills still does) as Southdown Rd. By 1961, the now-replaced circular interchange with the QEW is under construction. The beginning of Erin Mills Pkwy. is also under construction following the "logical" course of Fifth Line up to Dundas St. By 1975, development is well underway, and the next phase of Erin Mills Pkwy. is complete to north of Dundas St. where it curves west to rejoin Fifth Line. Meanwhile, the diversion section of Fifth Line is being incorporated into Fowler Dr. Today, Fowler Dr. (now Court) has been dead-ended and cut off by the "new" Leanne Dr. Fifth Line itself has it's own "bypass", as a straight extension to Leanne Dr. that is named Fifth Line despite never being part of the original concession road at all.
Google Street View shot looking south down Fifth Line, which originally curved off to the left at what's now an intersection:
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Near Burnhamthorpe Rd., Fifth Line breaks, and resumes at Eglinton Ave, meaning it was unimportant even by the standards of rural Toronto Township. By 1977, Erin Mills Pkwy. is present, and appears to have a split around where the future Highway 403 bridge will be constructed. The Erin Mills community is under development, and the present course of Burnhamthorpe is under construction, as is The Collegeway. The original course of Burnhamthorpe is still the main road, but as of 2020, is broken up into several streets, including Rogers Rd. and Burbank Dr.
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Up at Thomas St. in the Vista Heights area of Streetsville, Fifth Line and Thomas intersect at the southwestern boundaries of the community. By 1977, the new Erin Mills follows a alignment that avoids houses on the east side of the road and Vista Blvd. has been extended west to meet it. Thomas St. is also shifted to meet Erin Mills, creating a new L-shaped street; Turney Drive. Today, newer development has swallowed Vista Heights and houses line Turney Dr. on what were the "far sides" of the original Fifth Line and Thomas St.
GSV grab looking south down Turney Dr. to what was once the corner of Fifth Line and Thomas St. The opposite of what happened near the QEW--a former intersection that's now a sharp bend:
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Finally, up in Meadowvale, in 1954 Fifth Line ran uninterrupted straight up through to Chinguacousy Township (now Brampton). Even the 401 wasn't there yet...let alone the 407! By 1975, the diversion where Erin Mills turns to rendezvous with Mississauga Rd. is going in as Meadowvale develops, and the presence of Highway 401 forces the minor road to run beside the freeway to meet, and jog along, Derry Road, but by this time the remaining section of Fifth Line's days are numbered. Today, the road is obliterated between the curve at Battleford Rd. to north of the 401, but it's former course is still visible where it forms the boundary between residential and industrial areas. But up north near Highway 407, it returns as part of Meadowvale Blvd, and continues into Brampton as Heritage Road.
All aerials: Mississauga Maps
In the 1954 pic, Fifth Line had this odd course shift (and a long farm driveway, later made into a street, running west off of it) north of the QEW , and only had an at-grade intersection with the QEW where it continued south (as Erin Mills still does) as Southdown Rd. By 1961, the now-replaced circular interchange with the QEW is under construction. The beginning of Erin Mills Pkwy. is also under construction following the "logical" course of Fifth Line up to Dundas St. By 1975, development is well underway, and the next phase of Erin Mills Pkwy. is complete to north of Dundas St. where it curves west to rejoin Fifth Line. Meanwhile, the diversion section of Fifth Line is being incorporated into Fowler Dr. Today, Fowler Dr. (now Court) has been dead-ended and cut off by the "new" Leanne Dr. Fifth Line itself has it's own "bypass", as a straight extension to Leanne Dr. that is named Fifth Line despite never being part of the original concession road at all.
Google Street View shot looking south down Fifth Line, which originally curved off to the left at what's now an intersection:
***
Near Burnhamthorpe Rd., Fifth Line breaks, and resumes at Eglinton Ave, meaning it was unimportant even by the standards of rural Toronto Township. By 1977, Erin Mills Pkwy. is present, and appears to have a split around where the future Highway 403 bridge will be constructed. The Erin Mills community is under development, and the present course of Burnhamthorpe is under construction, as is The Collegeway. The original course of Burnhamthorpe is still the main road, but as of 2020, is broken up into several streets, including Rogers Rd. and Burbank Dr.
***
Up at Thomas St. in the Vista Heights area of Streetsville, Fifth Line and Thomas intersect at the southwestern boundaries of the community. By 1977, the new Erin Mills follows a alignment that avoids houses on the east side of the road and Vista Blvd. has been extended west to meet it. Thomas St. is also shifted to meet Erin Mills, creating a new L-shaped street; Turney Drive. Today, newer development has swallowed Vista Heights and houses line Turney Dr. on what were the "far sides" of the original Fifth Line and Thomas St.
GSV grab looking south down Turney Dr. to what was once the corner of Fifth Line and Thomas St. The opposite of what happened near the QEW--a former intersection that's now a sharp bend:
***
Finally, up in Meadowvale, in 1954 Fifth Line ran uninterrupted straight up through to Chinguacousy Township (now Brampton). Even the 401 wasn't there yet...let alone the 407! By 1975, the diversion where Erin Mills turns to rendezvous with Mississauga Rd. is going in as Meadowvale develops, and the presence of Highway 401 forces the minor road to run beside the freeway to meet, and jog along, Derry Road, but by this time the remaining section of Fifth Line's days are numbered. Today, the road is obliterated between the curve at Battleford Rd. to north of the 401, but it's former course is still visible where it forms the boundary between residential and industrial areas. But up north near Highway 407, it returns as part of Meadowvale Blvd, and continues into Brampton as Heritage Road.
All aerials: Mississauga Maps