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King's Highway 401 - www.OntHighways.com

Highway 401 is without a doubt the most important highway in Ontario, and is arguably the most important highway in Canada, and certainly the busiest.  Highway 401 was primarily built to bypass the once great Ontario Highway 2, which had previously been carrying through traffic through the heart of Southern Ontario's largest communities.  Highway 401 is Ontario's new 'main street' and forms the backbone of Southern Ontario's economy. The highway is approximately 820 km long with 160 exits.

When The 401 was completed in 1967, it was designated the Macdonald-Cartier (M-C) Freeway, in honour of two of the most predominate forefathers of Canadian Confederacy.  The designation of Highway 401 as the M-C freeway included installation of M-C shields, much like the one seen below.  M-C Freeway signs were at one time extremely common along Highway 401, however do to budget restraints they are (unfortunately) being removed as new 401 signage is installed.

Highway 401 within Toronto, in the area surrounding the 400 is North America's busiest highway.  Originally built as a 4-lane route (2-lanes per direction) it now, in some places, has a 18+ lane cross section with a complicated (yet highly effective) core-distributor (C-D) system.


The Macdonald-Cartier Freeway,

Highway 401

 

Western Terminus:  North America's busiest route ends at at Highway 3, approximately 12km southeast of the Ambassador Bridge, in the city of Windsor.

Eastern Terminus:  Highway 401 ends at the Quebec border.  It connects to Quebec Highway A-20 which continues into downtown Montreal and many points easterly in Quebec.

Length:  817.9 km

Multiplexes:  4.3 km with Highway 6 south of Guelph

Freeway:  Entire Length

AADT (2002):  Highest:  409,000 between Highway 400 and Weston Road in Toronto;

                              Lowest:  15,300 between Highway 401TR (Tunnel Route) and Highway 3 near Windsor.

Road Info:  Highway 401 is very well maintained for its entire length (unsurprisingly considering it is the economic backbone of Ontario).  With any highway that is very well maintained, construction is very frequent along Highway 401, and there is virtually always construction at some point along the route at all times of the year.  Take care in construction zones, as backups are possible in any area of the province (though they are obviously more frequent in the vicinity of major centres).  Despite having a much higher design speed, the entire length of Highway 401 is posted at 100km/h.


 

Highway 401 information:


OntHighways.com  

Detailed Route information available below
Virtual Tour and other photos of Highway 401
- Images Page 1 - Windsor to Tilbury


TheKingsHighway.ca   History of Highway 401
Photographic History of Highway 401

Interchanges along Highway 401 from West to East:

Proper Municipality Name

Exit #

Intersecting Road

North / West Control City

South / East Control City

Windsor - Tecumseh Boundary --- King's Highway 3 West Bridge to U.S.A.
Windsor - Tecumseh Boundary 13 - WB Partial Interchange Dougall Parkway (Formerly Highway 3B) Tunnel to U.S.A.  Windsor Downtown
Town of Tecumseh 14 Essex Road 46

City of Windsor: Population 209 000  - 3 Interchanges

Tecumseh - Lakeshore Boundary 21 Manning Road (Essex Road 19) Tecumseh -----
Town of Lakeshore 28 Puce Road (Essex Road 25) Puce Essex
Town of Lakeshore 34 Belle River Road (Essex Road 27) Belle River Woodslee
Town of Lakeshore 40 St Joachim Road (Essex Road 31) St Joachim -----
Town of Lakeshore 48 King's Highway 77 & Comber Road (Essex Road 25) Stoney Point Leamington
Town of Lakeshore 56 Highway 2 (Essex Road 42) ----- Tilbury

Service Centres: WB & EB

Municipality of Chatham-Kent 63 Highway 2 (Chatham-Kent Road 2, Queens Line) Tilbury -----
Municipality of Chatham-Kent 81 Bloomfield Road (C-K Road 27) Chatham, Wallaceburg (EB) -----
Municipality of Chatham-Kent 90 King's Highway 40 / C-K Road 11 Chatham, Wallaceburg (WB) Blenheim
Municipality of Chatham-Kent 101 Kent Bridge Road (C-K Road 15) Dresden -----
Municipality of Chatham-Kent 109 Highway 21 (C-K Roads 21 & 17) Thamesville Ridgetown
Municipality of Chatham-Kent 117 Orford Road (C-K Road 20) ----- Highgate
Municipality of Chatham-Kent 129 Furnival Road (C-K Road 103) Wardsville Rodney
Municipality of West Elgin 137 Highway 76 (Elgin Road 76, Graham Road) ----- West Lorne

Service Centres: WB & EB

Municipality of Dutton/Dunwich 149 Currie Road (Elgin Road 8) ----- Dutton
Dutton/Dunwich - Southwold Boundary 157 Iona Road (Elgin Road 14) Melbourne Iona Station
Township of Southwold 164 Union Road (Elgin Road 20) ----- Shedden
City of London 177 (A-B) King's Highway 4 (Colonel Talbot Drive) London St. Thomas
City of London 183 - WB Partial Interchange King's Highway 402

Sarnia

 
City of London 186 Wellington Road

City of London,  Population: 348 000 -  4 Interchanges

Downtown via Wellington Road North

City of London 186 Wellington Road (Formerly Highway 135)
City of London 189 Highbury Avenue (Formerly Highway 126)
City of London 194 Airport Road (Formerly Highway 100)
Municipality of Thames Centre 195 Highway 74 (Westchester Borne, Middlesex Road 74) Nilestown Belmont
Municipality of Thames Centre 199 Dorchester Road (Middlesex Road 32) Dorchester -----
Municipality of Thames Centre 203 Highway 73 (Elgin Road, Middlesex Road 73) ----- Aylmer
Municipality of Thames Centre 208 Putnam Road (Middlesex Road 30) Putnam Avon
Township of South-West Oxford 216 Culloden Line (Oxford Road 10) Ingersol -----
Township of South-West Oxford 218 King's Highway 19 / Oxford Road 119 (Plank Line) Ingersol Tillsonburg
Township of South-West Oxford 222 Foldens Road (Oxford Road 6) Embro -----

Service Centres: WB & EB

South-West Oxford - Woodstock Boundary 230 Sweaburg Road (Oxford Road 12)

City of Woodstock

Population: 34 000

Sweaburg
City of Woodstock 232 Highway 59 (Norwich Avenue, Oxford Road 59) Delhi
Woodstock - Norwich Boundary 235 King's Highway 403   Brantford, Hamilton
Township of Norwich 236 Towerline Road 4 Interchanges -----
Norwich - Blandford- Blenheim Boundary 238 Highway 2 (Oxford Road 2) Paris
Township of Blandford- Blenheim 250 Oxford Road 29 Innerkip Drumbo
Township of North Dumphries 268 Cedar Creek Road (Waterloo Road 97, Formerly Highway 97) Ayr

City Cambridge

Pop: 110 000 - 6 Interchanges

Downtown via Highway 24-South

Cambridge - Kitchener Boundary 275 Waterloo Road 28 (Homer Watson Boulevard & Fountain Road)

City of Kitchener

Pop: 190 000 - 2 Interchanges

Downtown via Highway 8 West

Cambridge - Kitchener Boundary 278 King's Highway 8 / Waterloo Road 8 (King Street)
City of Cambridge 282 King's Highway 24 / Waterloo Road 24 (Hespeller Road)

Cambridge

Brantford

City of Cambridge 284 Franklin Boulevard (Waterloo Road 24)

Cambridge

Cambridge - Puslinch Boundary 286 Townline Road

Service Centre: WB & EB

Township of Puslinch 295 King's Highway 6-North

City of Guelph

Population 90 000

2 Interchanges

 
Township of Puslinch 299 Brock Road (Wellington Road 46) & King's Highway 6-South Hamilton
Town of Milton 312 Guelph Line (Halton Road 1) ---- Campbellville, Burlington
Town of Milton 320 Highway 25 (Halton Road 25) Acton, Halton Hills Town of Milton
Pop: 43 000 - 3 Interchanges
Town of Milton 324 James Snow Parkway (Halton Road 4) ----
Milton - Halton Hills Boundary 328 Trafalgar Road (Halton Road 3) Halton Hills (Downtown), Georgetown Oakville
Halton Hills - Mississauga Boundary 330 Highway 407 ETR ----- ------
City of Mississauga 333 Winston Churchill Road

City of Mississauga

Population: 624 000

6 Interchanges

City of Mississauga 336 Peel Road 1 (Mississauga Road, Erin Mills Parkway)
City of Mississauga 340 Mavis Road
City of Mississauga 342 Highway 10 (Hurontario Street)
City of Mississauga 344 King's Highway 410 & King's Highway 403 Brampton Mississauga
City of Mississauga 346 Dixie Road (Peel Road 4) Mississauga
Mississauga - Toronto Boundary 348 - EB Partial Interchange Renforth Drive Toronto
City of Toronto 350 - EB Partial Interchange Eglinton Avenue
City of Toronto 352 King's Highway 427 Pearson International Airport Downtown Toronto
City of Toronto 353 -WB Partial Interchange Carlingview Road Toronto  
City of Toronto 354 Dixon Road & Martin Grove Road Toronto

At Highway 409:  EB: C-D system  begins, to exit Highway 401 use Collector Lanes.  WB: C-D ends.

City of Toronto 355 - WB Partial Interchange King's Highway 409 Pearson International
Airport
 
City of Toronto 356 Islington Avenue Toronto
City of Toronto 357 Weston Road
City of Toronto 359 King's Highway 400 & Black Creek Drive Barrie Toronto
City of Toronto 362 Keele Street Toronto
City of Toronto 365 Dufferin Avenue
City of Toronto 365 Allen Road
City of Toronto 366 - WB Partial Interchange Bathurst Street
City of Toronto 367 Highway 11A (Avenue Road)
City of Toronto 369 Highway 11 (Yonge Street)
City of Toronto 371 Bayview Avenue
City of Toronto 373 Leslie Street
City of Toronto 375 King's Highway 404 & Don Valley Parkway Newmarket Downtown Toronto
City of Toronto 376 Victoria Park Avenue

City of Toronto

Population: 2 462 000

 

Downtown via:

EB: Highway 427 South
WB: Don Valley Parkway

City of Toronto 378 Warden Avenue
City of Toronto 379 Kennedy Road
City of Toronto 380 - EB Partial Interchange Brimley Road SOUTH
City of Toronto 381 McCowan Road
City of Toronto 383 Highway 48 (Markham Road)
City of Toronto 385 Neilson Road
City of Toronto 387 Morningside Avenue
City of Toronto 389 Meadowvale Road
City of Toronto 390 - EB Partial Interchange Highway 2 & Highway 2A & Port Union Road
City of Toronto 392 - WB Partial Interchange Highway 2 & Highway 2A & Sheppard Avenue
City of Pickering 394 Whites Road (Durham Road 38)

City Of Pickering: Population 92 000

2-EB, 3-WB Interchanges

City of Pickering 397 - WB Partial Interchange Liverpool Road (Durham Road 29)
At Brock Road: EB: C-D system Ends.  WB: C-D system begins, to exit from Highway 401 use Collector Lanes
City of Pickering 399 Brock Road (Durham Road 1)

City of Pickering

Town of Ajax 401 Westney Road (Durham Road 31)

Town of Ajax:  Population 68 000 - 2 Interchanges

Ajax Business Centre via Salem Road South

Town of Ajax 404 Salem Road (Durham Road 41)
Town of Whitby 410 Highway 12 (Brock Street)

Town of Whitby:  Population 110 000 - 2 Interchanges

Downtown Whitby via Brock Street North

Town of Whitby 412 Thickson Road (Durham Road 26)

City of Oshawa

415

Stevenson Road (Durham Road 53)

City of Oshawa

 Population 150 000

 3-EB, 4-WB Interchanges

 

Downtown via Simcoe Street North

City of Oshawa

417 - EB Partial Interchange

Simcoe Street (Durham Road 2)

City of Oshawa

418

Ritson Road (Durham Road 16) & Simcoe Street (Durham Road 2) -WB

City of Oshawa

419

Harmony Road (Durham Road 33) & Bloor Street (Durham Road 22)

Municipality of Clarington 425 Courtice Road (Durham Road 34) Courtice -----
Municipality of Clarington 428 Holt Road ----- -----
Municipality of Clarington 431 Waverly Road (Durham Road 57)

Bowmanville

 2 Interchanges

-----
Municipality of Clarington 432 Liberty Street (Durham Road 14) Port Darlington
Municipality of Clarington 435 Bennett Road ----- -----
Municipality of Clarington 436 King's Highway 35/115 Lindsay, Peterborough-EB, Orono-WB

 

Municipality of Clarington 440 Mill Street (Durham Road 17) Newcastle Bond Head

Service Centre: WB

Municipality of Clarington 448 Newtonville Road (Durham Road 18) Newtonville -----

Service Centre: EB

Town of Port Hope 456 Wesleyville Road ----- -----
Town of Port Hope 461 Highway 2 (Northumberland Road 2) Welcome Port Hope
Town of Port Hope 464 Highway 28 (Northumberland Road 28) Bewdly-EB, Peterborough-WB Port Hope
Town of Cobourg 472 Burnham Street (Northumberland Road 18) Gores Landing Cobourg
Town of Cobourg 474 Highway 45 (Northumberland Road 45) Norwood-EB, Baltimore- WB Cobourg
Township of Hamilton 487 Lyle Street (Northumberland Road 23) Centreton Grafton
Township of Cramahe 497 Northumberland Road 25 (Big Apple Road / Percy Street) Castleton Colborne
Municipality of Brighton 509 Highway 30 (Northumberland Road 30) Campbellford Brighton

Service Centres: WB & EB

City of Quinte West 522 Wooler Road (Northumberland Road 40) Wooler -----
City of Quinte West 525 Highway 33, (Quinte West Road 33) Frankford, Batawa Trenton
City of Quinte West 526 Glen Miller Road ----- CFB Trenton, Trenton
City of Quinte West 538 Wallbridge- Loyalist Road (Hastings Road 1) ----- -----
City of Belleville 543 (A-B) King's Highway 62 Madac, Marmora Belleville
City of Belleville 544 King's Highway 37 Tweed Belleville
Township of Tyendinaga 556 Shannonville Road Shannonville -----
Township of Tyendinaga 566 Highway 49 & Marysville Road (Hastings Road 15) ----- Desoronto, Picton
Tyendinaga - Greater Napanee Boundary 570 Deseronto Road (Lennox & Addington Road 10) ----- Desoronto
Town of Greater Napanee 579 Highway 41 (Lennox & Addington Road 41) Kaladar Napanee
Town of Greater Napanee 582 Lennox & Addington Road 1 Newburgh Napanee

Service Centre: WB

Township of Loyalist 593 Lennox & Addington Road 4 (Camden East Road, Highway 133) Camden East Millhaven
Township of Loyalist 599 Lennox & Addington Road 6 ----- Odessa

Service Centre: EB

City of Kingston 611 Highway 38 (Kingston Road 38) Sharbot Lake, Harrowsmith

City of Kingston,

Population: 110 000 -

6 Interchanges

Downtown via
EB: Sir John A Macdonald

WB: Highway 15

City of Kingston 613 Sydenham Road (Kingston Road 9) Sydenham
City of Kingston 615 Sir John A. Macdonald Road  
City of Kingston 617 Division Street & Perth Road (Kingston Road 10) Perth
City of Kingston 619 Montreal Road Battersea
City of Kingston 623 King's Highway 15 / Kingston Road 15 Smiths Falls
City of Kingston 632 Joyceville Road Joyceville ------
Town of Gananoque 645 Highway 32 (Leeds & Granville Road 32) Crosby Gananoque
Town of Gananoque 647 - WB Partial Interchange Thousand Islands Parkway (Formerly Highway 2S)   -----
Town of Gananoque 648 - EB Partial Interchange King's Highway 2 / Leeds & Granville Road 2 Gananoque -----
Twp of Leeds and the Thousand Islands 659 Reynolds Road (Leeds & Granville Road 3) Lansdowne Rockport
Twp of Leeds and the Thousand Islands 661 King's Highway 137 (Bridge to USA, Hill Island, I-81)   Bridge to USA, Hill Island
Township of Front of Yonge 675 Mallorytown Road (Leeds & Granville Road 5) Mallorytown, Athens  

Service Centres: EB & WB

Township of Front of Yonge 685 - EB Partial Interchange Thousand Islands Parkway (Formerly Highway 2S) Rockport  
Township of Front of Yonge 687 Highway 2 (Leeds & Granville Road 2) ----- Brockville
City of Brockville 696 Highway 29 (Leeds & Granville Road 29, Steward Street) Smiths Falls Brockville
City of Brockville 698 North Augusta Road North Augusta Brockville
Township of Augusta 705 Leeds & Granville Road 15 Merrickville Maitland
Town of Prescott 716 Edward Street Domville Prescott
Township of Edwardsburgh/ Cardinal 721A - EB Partial Interchange King's Highway 416 (Veterans Memorial Highway) Kemptville, Ottawa  
Township of Edwardsburgh/ Cardinal 721B King's Highway 16, To King's Highway 416 Ottawa (Alternate Route to Hwy 416) Johnstown
Township of Edwardsburgh/ Cardinal 730 Leeds & Granville Road 22    
Township of South Dundas 738 Carman Road (Stormont, Glengarry & Dundas Road 1)   Iroquois
Township of South Dundas 750 Highway 31 (Stormont, Glengarry & Dundas Road 31) Winchester Morrisburg

Service Centre -EB

Township of South Dundas 758 Upper Canada Road (Stormont, Glengarry & Dundas Road 41)    

Service Centre -WB

Township of South Stormont 770 Stormont, Glengarry & Dundas Road 14   Ingleside
Township of South Stormont 778 Stormont, Glengarry & Dundas Road 35   Long Sault
Township of South Stormont 786 - EB Partial Interchange Stormont, Glengarry & Dundas Road 33    
City of Cornwall 789 King's Highway 138    
City of Cornwall 792 McConnell Avenue    
City of Cornwall 796 Boundary Road    
Township of South Glengarry 804 Summerstown Road (Stormont, Glengarry & Dundas Road 27)    
Township of South Glengarry 814 Highway 34 (Stormont, Glengarry & Dundas Road 34) & Highway 2 (Stormont, Glengarry & Dundas Road 2) Alexandria South Lancaster
Township of South Glengarry 825 4th Line Road (Stormont, Glengarry & Dundas Road 23) Curry Hill -----
Ontario - Quebec Boundary --- PQ Autoroute 20    

Service Centre - WB

Highway 401 Ends - Continues into Quebec as Autoroute 20


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Page last updated:  May 13th, 2014

Page created:  January 4th, 2004