Hwy 540 Hwy 540 to 559 Index Hwy 559   

Click on any Secondary Highway route marker sign from the menu below to see a detailed history and a link to a route map of that highway, showing historical re-routings and realignments. Most of the route maps are still under development and will be posted later. For all other Ontario Highways, please return to the Main Highway List. Enjoy!


Photo at Right: Aboard the St. Joseph Islander Ferry linking Hwy 548 to Hwy 17 on the Mainland (1953)
(Photo courtesy of Ontario Ministry of Transportation  -  © Queen's Printer for Ontario, 1953)

List of Ontario Secondary Highways Numbered 540 through 559:

PLEASE NOTE: Not all Secondary Highways are listed yet. Additional routes will be added in 2017.

Hwy 540
Secondary Highway 540:

Meldrum Bay to Little Current

1956-Present
Hwy 549
Secondary Highway 549:

Lake Panache to Highway 17

1956-1984

Hwy 540A
Secondary Highway 540A:

Barrie Island to Highway 540

1964-Present
Hwy 550
Secondary Highway 550:

Gros Cap to Sault Ste. Marie

1956-Present

Hwy 540B
Secondary Highway 540B:

Gore Bay Business Loop

1956-Present
Hwy 550B
Secondary Highway 550B:

Sault Ste. Marie Business Route

1968-2006

Hwy 541
Secondary Highway 541:

Highway 17 to Skead

1956-1974
Hwy 551
Secondary Highway 551:

Providence Bay to Highway 540

1956-Present

Hwy 541A
Secondary Highway 541A:

Highway 541 to Falconbridge Mine

1956-1974
Hwy 552
Secondary Highway 552:

Goulais Bay to Highway 556

1956-Present

Hwy 542
Secondary Highway 542:

Gore Bay to Highway 6

1956-Present
Hwy 552A
Secondary Highway 552A:

Highway 17 to Highway 552

1961-1970s

Hwy 542A
Secondary Highway 542A:

Tehkummah to Highway 542

1956-Present
Hwy 553
Secondary Highway 553:

Massey to Highway 810

1956-Present

Hwy 543
Secondary Highway 543:

Long Lake to Sudbury

1956-1974
Hwy 554
Secondary Highway 554:

Highway 129 to Highway 546

1956-Present

Hwy 546
Secondary Highway 546:

Iron Bridge to Mount Lake

1956-Present
Hwy 555
Secondary Highway 555:

Highway 557 to Granary Lake

1956-1997

Hwy 547 (#1)
Secondary Highway 547 (#1):

Sudbury to Frood Mine

1956-1960
Hwy 556
Secondary Highway 556:

Heyden to Highway 129

1956-Present

Hwy 547 (#2)
Secondary Highway 547 (#2):

Highway 101 to Hawk Junction

1964-Present
Hwy 557
Secondary Highway 557:

Blind River to Matinenda Lake

1956-Present

Hwy 548
Secondary Highway 548:

St. Joseph Island to Highway 17

1956-Present
Hwy 558
Secondary Highway 558:

Highway 11 to Mowat Landing

1956-Present




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