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This is a list of secondary highways in Algoma District, most of which serve as logging roads or provide access to isolated and sparsely populated areas in the Algoma District of northeastern Ontario. Some of the shorter ones are also access routes for communities with moderate amounts of tourism, most famously St. Joseph Island's highway 548.

Highway 519

Highway 519
Route information
Maintained by the Ministry of Transportation of Ontario
Length	30.5 km (19.0 mi)
Major junctions
West end	Highway 17 near Obatanga Provincial Park
East end	Dubreuilville
Location
Country	Canada
Province	Ontario
Highway system
Ontario provincial highways Current Former 400-series
← Highway 518 → Highway 520

Secondary Highway 519, commonly referred to as Highway 519, is a provincially maintained highway in the Canadian province of Ontario. The highway is 30.5 km (19.0 mi) in length, connecting Highway 17 near Obatanga Provincial Park with Dubreuilville station. A private logging road continues east from there.

Highway 519 was assumed in 1956, and has remained unchanged since then. The route is gravel surface throughout its length and encounters no communities of any size along its length, aside from Dubreuilville.

Highway 532

Highway 532
Route information
Maintained by the Ministry of Transportation of Ontario
Length	14.2 km (8.8 mi)
Existed	1974–present
Major junctions
South end	Highway 556 near Glendale
North end	Christina Mine Road
Location
Country	Canada
Province	Ontario
Counties	Algoma District
Towns	Searchmont
Villages	Wabos
Highway system
Ontario provincial highways Current Former 400-series
← Highway 531 → Highway 533

Secondary Highway 532, commonly referred to as Highway 532, is a provincially maintained secondary highway in the Canadian province of Ontario. The route connects several mining and milling towns in Unorganized Algoma District, notably Searchmont. The route is remote, ending at a mine access road 14.2 kilometres (8.8 mi) north of Highway 556, its southern terminus.

A former designation of Highway 532 travelled through Muskoka along the Parry Sound Colonization Road and was redesignated as Highway 141 in 1974. At that time, the present route was established following what was until then a segment of Highway 556. It has remained unchanged since then.

Highway 538

Highway 538
Route information
Maintained by the Ministry of Transportation of Ontario
Length	5.6 km (3.5 mi)
Existed	1956–present
Major junctions
West end	Highway 17 at Algoma Mills
East end	Highway 17 between Algoma Mills and Pronto
Location
Country	Canada
Province	Ontario
Towns	North Shore
Highway system
Ontario provincial highways Current Former 400-series
← Highway 537 → Highway 539

Secondary Highway 538, commonly referred to as Highway 538, is a provincially maintained highway in the Canadian province of Ontario. The highway is 5.6 kilometres (3.5 mi) in length and follows an older alignment of Highway 17 east of Blind River, between the Canadian Pacific Railway tracks and the shoreline of the North Channel of Lake Huron, while the present Highway 17 runs north of the railway tracks. The route was designated in 1956 and has remained unchanged since.

Highway 546

Highway 546
Route information
Maintained by the Ministry of Transportation of Ontario
Length	76.5 km (47.5 mi)
Major junctions
Southwest end	Highway 17 at Iron Bridge
Major intersections	Highway 639 north of Elliot Lake
Northeast end	Mount Lake
Location
Country	Canada
Province	Ontario
Towns	Iron Bridge, Parkinson
Highway system
Ontario provincial highways Current Former 400-series
← Highway 545 → Highway 547

Secondary Highway 546, commonly referred to as Highway 546, is a secondary highway in the Canadian province of Ontario. Located within the Algoma District, the highway extends for 76.5 kilometres (47.5 mi) from a junction with Highway 17 at Iron Bridge to Mount Lake, 12.5 kilometres (7.8 mi) northeast of a junction with Highway 639 north of Elliot Lake.

Between the intersections with Highway 17 and Highway 639, the highway is part of the Deer Trail tourist route. From north of the intersection with Highway 554, it follows the Little White River.

Highway 547

Highway 547
Route information
Maintained by the Ministry of Transportation of Ontario
Length	5.6 km (3.5 mi)
Existed	February 27, 1964–present
Major junctions
South end	Highway 101 near Wawa
North end	Cedar Street in Hawk Junction
Location
Country	Canada
Province	Ontario
Counties	Algoma District
Highway system
Ontario provincial highways Current Former 400-series
← Highway 546 → Highway 548

Secondary Highway 547, commonly referred to as Highway 547, is a secondary highway in the Canadian province of Ontario. Located within the Algoma District, the highway spans a distance of 5.6 kilometres (3.5 mi), connecting the community of Hawk Junction to Highway 101 near Wawa.

Highway 548

Highway 548
Route information
Maintained by Ministry of Transportation of Ontario
Length	74.6 km (46.4 mi)
Major junctions
North end	Highway 17 near Desbarats
South end	Highway 548 (69.1 km (42.9 mi) loop around St. Joseph Island)
Location
Country	Canada
Province	Ontario
Highway system
Ontario provincial highways Current Former 400-series
← Highway 547 → Highway 550

Secondary Highway 548, commonly referred to as Highway 548, is a secondary highway in the Canadian province of Ontario. Despite the route's secondary highway designation, it is the main and most important highway of St. Joseph Island. This highway consists of the Bernt Gilbertson Bridge to the island and a continuous loop route that circles the island.

The highway connects the hamlets of Richard's Landing and Hilton Beach, and guides tourists to Fort St. Joseph. Between the bridge road and Richard's Landing, as well as along the bridge route, it is built up to King's Highway standards. The remainder of the route is built to secondary highway standards, with a single solid centerline throughout.

North-south segment

The north-south segment of the highway connects the loop segment with Ontario's mainland. To the north, it terminates at Highway 17/Trans Canada Highway, and to the south, it ends at a t-intersection with the loop segment at Kents Corners, 5.4 kilometres (3.4 mi) south of Highway 17.

Loop segment

The loop segment is a continuous loop around St. Joseph's Island for 69.1 km (42.9 mi). To aid in navigation and addressing, segments of the loop have been given suffix letters by the local municipalities, which usually correspond to the local road name. For example, the portion of Highway 548 which is signed along D Line is named 548D, along Huron Line is it named 548H, etc.

Highway 550

Highway 550
Second Line
Route information
Maintained by Ministry of Transportation of Ontario
Length	11.3 km (7.0 mi)
Existed	1956–present
Major junctions
West end	Dead end in Gros Cap, Ontario
Major intersections	Highway 565 Highway 550B
East end	Highway 17 in Sault Ste. Marie
Location
Country	Canada
Province	Ontario
Major cities	Sault Ste. Marie, Ontario
Highway system
Ontario provincial highways Current Former 400-series
← Highway 548 → Highway 550B

Secondary Highway 550, commonly referred to as Highway 550, is a secondary highway in the Canadian province of Ontario. It runs east/west from the city of Sault Ste. Marie, Ontario to the hamlet of Gros Cap in Prince Township. It is known as Second Line within the Sault's city limits.

Its eastern terminus is an intersection with Highway 17, the Trans-Canada Highway, at the north end of the city. From here it is a four-lane undivided road, used heavily by commercial truck traffic as a link between Highway 17 and Carmen's Way (Highway 550B), the truck bypass linking Second Line with the International Bridge. Trucks are now able to avoid the downtown core by using Highway 17, Highway 550, and Carmen's Way to reach the border with the U.S. Highway 550 reduces to two lanes west of Goulais Avenue. The highway intersects with Highway 565, also known as Airport Road. Highway 550 continues to its western terminus, at a roundabout on the shores of Lake Superior, in Gros Cap.

The MTO maintains the 9.1 km (5.7 mi) portion of Highway 550 west of Town Line Road. A 2.2 km (1.4 mi) section of Second Line between Carmen's Way and Highway 17 (Great Northern Road) is maintained under a Connecting Link agreement. The remainder, between Town Line Road and Carmen's Way, is maintained by the city of Sault Ste. Marie.

Highway 550B

Highway 550B
Carmen's Way
Route information
Auxiliary route of Highway 550
Maintained by the Corporation of the City of Sault Ste. Marie under a Connecting Link agreement with the Ministry of Transportation of Ontario
Length	2.88 km (1.79 mi)
Major junctions
North end	Highway 550
Major intersections	Wellington Street West
South end	Huron Street near the Sault Ste. Marie International Bridge
Location
Country	Canada
Province	Ontario
Major cities	Sault Ste. Marie, Ontario
Highway system
Ontario provincial highways Current Former 400-series
← Highway 550 → Highway 551

Secondary Highway 550B, commonly referred to as Carmen's Way, is an unmarked secondary highway in the Canadian province of Ontario, located within the Algoma District. It runs south from Highway 550 2.2 km (1.4 mi) east of its intersection with Highway 17, the Trans-Canada Highway, to Huron Street near the Sault Ste. Marie International Bridge. The highway runs entirely within the city of Sault Ste. Marie, Ontario and is entirely maintained under a Connecting Link agreement.

The highway runs south along Carmen's Way and turns east along Queen Street West until an intersection with Huron Street near the international crossing. The highway is not marked with 550B shields; instead, southbound, it is marked with "To USA" trailblazer shields, and northbound, it is marked with "To 17" trailblazer shields.

Highway 552

Highway 552
Route information
Maintained by the Ministry of Transportation of Ontario
Length	18.3 km (11.4 mi)
Major junctions
Southeast end	Highway 556 at Island Lake
Major intersections	Highway 17 near Karalash Corners
Northwest end	Grant's Road in Goulais Bay
Location
Country	Canada
Province	Ontario
Counties	Algoma District
Highway system
Ontario provincial highways Current Former 400-series
← Highway 551 → Highway 553

Secondary Highway 552, commonly referred to as Highway 552, is a secondary highway in the Canadian province of Ontario, located within the Algoma District. Commencing at a junction with Highway 556 in the community of Island Lake, the highway extends northwesterly for 18.3 kilometres (11.4 mi) to the community of Goulais Bay.

It passes through the communities of Kirby's Corner and Bourdage Corner, and intersects with Highway 17, the main route of the Trans-Canada Highway, just outside Karalash Corners.

Highway 554

Highway 554
Route information
Maintained by the Ministry of Transportation of Ontario
Length	16.6 km (10.3 mi)
Major junctions
Northwest end	Highway 129 northeast of Wharncliffe
Southeast end	Highway 546 near Parkinson
Location
Country	Canada
Province	Ontario
Major cities	Kynoch, Parkinson
Highway system
Ontario provincial highways Current Former 400-series
← Highway 553 → Highway 555

Secondary Highway 554, commonly referred to as Highway 554, is a short secondary highway in the Canadian province of Ontario. Located within the Algoma District, the highway extends for 16.6 kilometres (10.3 mi) from a junction with Highway 129 northeast of Wharncliffe to a junction with Highway 546 near Parkinson. The highway follows the valley of the Little White River for most of its length.

Highway 555

Secondary Highway 555, commonly referred to as Highway 555, is the former designation for a secondary highway in Blind River, which extended from Highway 17 to Granary Lake. The highway also had the street names Woodward Avenue in the main population centre of Blind River, and Granary Lake Road north of Highway 557.

When the route number was removed from the system in the 1990s, the portion of the route south of the Highway 557 intersection was renumbered as an extension of Highway 557. The Granary Lake Road section was entirely decommissioned from the provincial highway system, and now exists only as a local road.

In 1991, the Ministry of Transportation issued a report which proposed that the route be extended to meet Spine Road in Elliot Lake, creating an alternate route which would reduce the length of a commute between Elliot Lake and Blind River by approximately 20 kilometres compared to the current routes of Highway 17 and Highway 108. While the ministry has not announced a plan to proceed with the construction, in 2015 Elliot Lake's city council passed a motion calling for the project to be revived.

Highway 556

Highway 556
Searchmont Highway, Ranger Lake Road
Route information
Maintained by the Ministry of Transportation of Ontario
Length	103.7 km (64.4 mi)
Major junctions
From	Highway 17 at Heyden
Major intersections	Highway 532 near Searchmont
To	Highway 129 near Aubrey Falls
Location
Country	Canada
Province	Ontario
Highway system
Ontario provincial highways Current Former 400-series
← Highway 555 → Highway 557

Secondary Highway 556, commonly referred to as Highway 556 or Ranger Lake Road is a secondary highway in the province of Ontario, Canada. Its western terminus is at Highway 17 in the hamlet of Heyden, just north of Sault Ste. Marie. Its eastern terminus is at Highway 129.

It is 103.7 kilometres (64.4 mi) in length, of which only 27 km (17 mi) are paved. This paved section runs from its western terminus to the intersection with Highway 532 near Searchmont and is therefore informally known as the Searchmont Highway. From this point, the highway surface is rough gravel for its remaining length. Ranger Lake is the only community on this portion of Highway 556. Despite its relatively poor surface, it is considered an alternate link between Chapleau and Sault Ste. Marie.

Highway 557

Highway 557
Route information
Maintained by the Ministry of Transportation of Ontario
Length	19.7 km (12.2 mi)
Major junctions
South end	Granary Lake Road near Blind River (signed south to Highway 17)
North end	Matinenda Lake
Location
Country	Canada
Province	Ontario
Counties	Algoma District
Highway system
Ontario provincial highways Current Former 400-series
← Highway 556 → Highway 558

Secondary Highway 557, commonly referred to as Highway 557, is a secondary highway in the Canadian province of Ontario, located within the Algoma District. Commencing at a junction with Highway 17 in the town of Blind River, the highway extends northerly for 22.9 km (14.2 mi) to the shore of Matinenda Lake, providing the primary road access to Matinenda Lake Provincial Park as well as to rural parts of the town of Blind River and the neighbouring Mississauga First Nation. The road has the street name Woodward Avenue from Highway 17 to Granary Lake Road, and Matinenda Road west of that intersection.

Prior to the late 1990s, the Woodward Avenue segment of the highway was designated as Highway 555. The 557 designation applied only to Matinenda Road, while the 555 designation continued along Granary Lake Road. When Granary Lake Road was decommissioned from the provincial highway system, the 557 designation was extended along Woodward Avenue rather than the 555 designation being shifted from Granary to Matinenda.

The MTO does not maintain the 3.2 km (2.0 mi) section of Highway 557 south of the Granary Lake Road intersection through Blind River, This section is signed as part of the highway for continuity to Highway 17.

Highway 563

Highway 563
Route information
Maintained by Ministry of Transportation of Ontario
Length	5.5 km (3.4 mi)
Major junctions
South end	Batchawana Bay government dock at Lake Superior
North end	Highway 17 – Wawa, Sault Ste. Marie
Location
Country	Canada
Province	Ontario
Counties	Algoma District
Highway system
Ontario provincial highways Current Former 400-series
← Highway 562 → Highway 564

Secondary Highway 563, commonly referred to as Highway 563, is a secondary highway in the Canadian province of Ontario, beginning at Highway 17/Trans Canada Highway about 70 kilometres (43 mi) north of Sault Ste. Marie, and following the shoreline of Batchawana Bay. The area is a vacation spot, and Highway 563 goes through the community of the same name as the bay. Batchawana Bay has a church, post office, elementary school, motel, and homes for the permanent residents, among them First Nations people. Near the Hwy 563/17 junction is the Carp River, and there are rental cabins along the riverbank.

Highway 565

Highway 565
Airport Road
Route information
Maintained by Ministry of Transportation of Ontario
Length	1.6 km (0.99 mi)
Major junctions
South end	Prince/Sault Ste. Marie municipal boundary
North end	Highway 550 in Prince
Location
Country	Canada
Province	Ontario
Major cities	Sault Ste. Marie, Ontario
Highway system
Ontario provincial highways Current Former 400-series
← Highway 564 → Highway 566

Secondary Highway 565, commonly referred to as Highway 565, is a secondary highway in the Canadian province of Ontario, near Sault Ste. Marie. More commonly known as Airport Road, the highway is approximately 1.6 kilometres (0.99 mi) in length, shortened from its original length of 4.4 kilometres (2.7 mi) before municipal downloading. Originally, Highway 565's southern terminus was the intersection of Point-Aux-Pins Road, near the St. Mary's River. It was initially truncated at the entrance to Sault Ste. Marie Airport but now ends at Base Line, at the Sault Ste. Marie-Prince Township boundary.

Highway 631

Secondary Highway 631, commonly referred to as Highway 631, is a secondary highway in the Algoma District of Northern Ontario. This highway is roughly 167.2 kilometres (103.9 mi) in length, and connects Highway 17 at White River with Highway 11 between Hearst and Longlac.

Highway 631 is a very isolated road. There are no services available nor any development along its entire length except at Hornepayne, the only community situated on it, about 100 kilometres (60 mi) from White River.

The road was opened on May 26, 1973, costing C$7.5 million to construct. The White River terminus became a subject of brief controversy after it was rerouted to meet Highway 17 within property owned by the town's mayor, Naldo Bracci.

Highway 638

Highway 638
Route information
Maintained by the Ministry of Transportation of Ontario
Length	52.1 km (32.4 mi)
Major junctions
Northwest end	Highway 17B in Echo Bay
Major intersections	Highway 17 in Echo Bay  Highway 670 at Ophir
Southeast end	Highway 17 in Bruce Mines
Location
Country	Canada
Province	Ontario
Major cities	Echo Bay, Bruce Mines
Highway system
Ontario provincial highways Current Former 400-series
← Highway 637 → Highway 639

Secondary Highway 638, commonly referred to as Highway 638, is a secondary highway located in the District of Algoma in Ontario. The highway measures 52.1 kilometres (32.4 mi) in length, extending from Echo Bay eastward through the communities of Sylvan Valley, Leeburn and Ophir, where it turns southward and runs south through Rydal Bank, Bruce Station, and finally to its southeastern terminus, also at Highway 17, in the town of Bruce Mines.

Highway 639

Highway 639
Route information
Maintained by the Ministry of Transportation of Ontario
Length	23.2 km (14.4 mi)
Major junctions
South end	Highway 108 at Quirke Mine Road in Elliot Lake
North end	Highway 546 north of Elliot Lake
Location
Country	Canada
Province	Ontario
Major cities	Elliot Lake
Highway system
Ontario provincial highways Current Former 400-series
← Highway 638 → Highway 640

Secondary Highway 639, commonly referred to as Highway 639, is a secondary highway in the Canadian province of Ontario. Located within the Algoma District, the highway extends for 23.2 kilometres (14.4 mi) from the junction of Highway 108 and Quirke Mine Road, near the northern city limits of Elliot Lake, to a junction with Highway 546 north of the city.

The highway does not link the city to any significant residential settlements, but is used primarily as an access road to Mississagi Provincial Park and a few recreational lodges. The highway had an average daily traffic count of just 70 vehicles in 2007.

The highway is a continuation of the same roadway as Highway 108, the main highway into Elliot Lake from the south. It is part of the Deer Trail tourist route.

Highway 651

Highway 651
Route information
Maintained by the Ministry of Transportation of Ontario
Length	52.9 km (32.9 mi)
History	Established July 1, 1967 Extended April 30, 1969
Major junctions
South end	Highway 101
North end	CPR crossing in Missanabie
Location
Country	Canada
Province	Ontario
Districts	Algoma
Highway system
Ontario provincial highways Current Former 400-series
← Highway 650 → Highway 652

Secondary Highway 651, commonly referred to as Highway 651, is a provincially maintained highway in the Canadian province of Ontario. The highway is 52.9 kilometres (32.9 mi) in length, connecting Highway 101 east of Wawa with the remote community of Missanabie.

Highway 651 was established on Centennial anniversary of Confederation, but did not connect to any other roads originally; access to the route was provided from Missanabie. While this situation has since been remedied, the route nevertheless remains extremely isolated.

Highway 670

Highway 670
Route information
Maintained by the Ministry of Transportation of Ontario
Length	9.3 km (5.8 mi)
Existed	1989–present
Major junctions
West end	Highway 638 at Ophir
East end	Nardi Road at Dunns Valley
Location
Country	Canada
Province	Ontario
Counties	Algoma District
Highway system
Ontario provincial highways Current Former 400-series
← Highway 668 → Highway 671

Secondary Highway 670, commonly referred to as Highway 670, is a 9.3-kilometre (5.8 mi) two-lane gravel road running from Highway 638 at Ophir at its western terminus to Dunns Valley at its eastern terminus, which ends at Nardi road. At Highway 670 and Nardi Road, the roadway can continue north to Skookum lake (under a different designation), east along "The Shaw" road to Little Rapids (just north of Thessalon, Ontario) or west, down Nardi road that opens to an 800-acre farm land held within a horseshoe of mountains.

Highway 670 was established in mid- to late 1989, when a 9.5 km (5.9 mi) segment of Highway 638 between Ophir and Dunns Valley was renumbered.

References

1. ^ Ministry of Transportation of Ontario (2016). "Annual Average Daily Traffic (AADT) counts". Retrieved February 1, 2021.
2. Ontario Department of Highways (March 31, 1964). "Appendix No. 3 - Schedule of Controlled Access Highways". Annual Report (Report). p. 267.
3. St. Joseph Island map Archived 2009-03-10 at the Wayback Machine
4. ^ "Ministry of Transportation (MTO) Connecting Links Program 2022-23 Guide" (PDF). Government of Ontario. September 2021. Retrieved 2024-06-18.
5. ^ "Council considers old idea for new road" Archived 2015-09-23 at the Wayback Machine. Elliot Lake Standard, August 5, 2015.
6. Reguly, Robert (May 29, 1973). "Queen's Park Reroutes Highway to Land Owned By Conservative". The Toronto Star. p. 1.
7. Highway 639 at onthighways.com
8. A.A.D.T. Traffic Volumes 1955–1969 And Traffic Collision Data 1967–1969 (Report). Department of Highways. 1970. p. 145.
9. Transportation Capital Branch (1989). "Provincial Highways Distance Table". Provincial Highways Distance Table: King's Secondary Highways and Tertiary Roads. Ministry of Transportation of Ontario: 109, 120. ISSN 0825-5350.
10. Ontario Road Map (Map). Cartography by Cartography Section. Ministry of Transportation. 1990–91. § O–P34.

External links

• Route of Highway 546 on Google Maps
• Route of Highway 552 on Google Maps
• Route of Highway 554 on Google Maps
• Route of Highway 557 Google Maps
• Route of Highway 639 on Google Maps

v t e Ontario Provincial Highway Network
The King's Highways Current highways 2 3 4 5 6 7 7A 8 9 10 11 11B 12 15 16 17 17A 17B 19 20 21 23 24 26 27 28 33 34 35 37 40 41 48 49 58 58A 60 61 62 63 64 65 66 67 69 71 72 77 85 89 93 94 101 102 105 108 112 115 118 124 125 127 129 130 132 137 138 140 141 144 148 400-series highways 400 401 402 403 404 405 406 407 409 410 412 416 417 418 420 427 QEW Former highways 2A 2B 2S 3B 4A 5A 7B 8A 8B 8D 11A 12B 14 15A 18 18A 18B 22 24A 25 29 30 31 32 35A 35B 36 38 39 40A 40B 40C 42 43 44 45 46 47 48B 50 51 52 53 54 55 56 57 59 61B 68 70 73 74 75 76 78 79 80 81 82 83 84 86 87 88 90 91 92 95 96 97 98 99 100 103 104 106 107 109 110 111 114 116 117 119 120 121 122 123 126 128 131 133 134 135 136 169 400A Proposed 413 Bradford Bypass
Secondary highways Secondary highways 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 518 519 520 522 522B 523 524 525 526 527 528 528A 529 529A 531 532 533 534 535 536 537 538 539 539A 540 540A 540B 541 541A 542 542A 544 545 546 547 548 549 550 550B 551 552 553 554 555 556 557 558 559 560 560A 562 563 564 565 566 567 568 569 570 571 572 573 574 575 577 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 599 600 601 602 603 604 605 606 607 607A 608 609 611 612 613 614 615 616 617 618 619 621 622 623 624 625 626 627 628 630 631 632 633 634 636 637 638 639 640 641 642 643 644 645 646 647 650 651 652 654 655 656 657 658 661 663 664 665 667 668 670 671 672 673 By district Algoma Cochrane Kenora Manitoulin Nipissing Parry Sound Rainy River Sudbury Thunder Bay Timiskaming
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• Ontario secondary highways
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