 Highway 4 | |||||||
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| Route information | |||||||
| Maintained byMinistry of Transportation of Ontario | |||||||
| Length | 100.8 km[1] (62.6 mi) | ||||||
| Existed | June 24, 1920[2]–present | ||||||
| Major junctions | |||||||
| South end |  Highway 3 –St. Thomas | ||||||
| Major intersections |  Highway 401 –London Highway 402 –London Highway 7 –Elginfield | ||||||
| North end |  Highway 8 –Clinton | ||||||
| Location | |||||||
| Country | Canada | ||||||
| Province | Ontario | ||||||
| Major cities | St. Thomas,London | ||||||
| Towns | Exeter,Clinton | ||||||
| Highway system | |||||||
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King's Highway 4, also known asHighway 4, is aprovincially maintained highway in theCanadian province ofOntario. Originally much longer than its present 100.8 km (62.6 mi) length, more than half of Highway 4 was transferred to the responsibility of local governments in 1998. It travels betweenHighway 3 inTalbotville Royal, north-west ofSt. Thomas, andHighway 8 inClinton, passing through the city ofLondon inbetween.
Highway 4 was first designated in 1920, when a 51-kilometre (32 mi) route between Talbotville Royal and Elginfield was assumed by theDepartment of Highways. It was extended in the early 1930s both south toPort Stanley as well as north toFlesherton.
Highway 4 starts at an intersection with Highway 3 in Talbotville Royal and continues north as a two-lane undivided highway. For most of its length, the highway bisects agricultural land. It travels along a short 2.7-kilometre (1.7 mi)concurrency withHighway 401 from the community ofTempo to Wonderland Road. It encounters an interchange withHighway 402 before enteringLondon city limits. As Highway 4 enters London, it becomes aConnecting Link, known locally as Wonderland Road. Wonderland Road is a 4-lane arterial thoroughfare serving western London, with several big-box stores, a mall, and residential areas. The route turns east onto Sunningdale Road West, which it for a short distance before turning north along Richmond Street.[3][4][5]
Highway 4 continues north, passing throughArva, when the surrounding terrain returns to farmland. Highway 4 passes throughBirr before intersecting with the western terminus ofHighway 7 atElginfield, which is also 1 km east of theHighway 23 junction with Highway 7. The highway then curves slightly west, passing throughLucan before continuing north at Clandeboye. From here to its terminus in Clinton, Highway 4 is essentially straight for 45 kilometres (28 mi). Continuing to be flanked by farmland, it then passes through the communities ofHuron Park andExeter. At Exeter, it crosses the former route ofHighway 83. From there, it continues north, passing through the communities ofHensall, Ontario andVanastra, Ontario before terminating at Highway 8 in the community of Clinton.[3][4][5]
Highway 4 was originally designated in 1920 when the provincial government assumed the road running from Talbotville Royal (St. Thomas) to the Northern Highway (later Highway 7) at Elginfield, via London. The portions within Elgin County were assumed on August 4, while the portions south of London were assumed on June 24. The portions north of and through London were assumed on August 6.[2]The 51.2-kilometre (31.8 mi) route featured a concurrency with the Provincial Highway (later Highway 2) between Lambeth and downtown London.[6][7]
Until the summer of 1925, Ontario highways were named rather than numbered. When route numbering was introduced, the route between St. Thomas and Elginfield became Provincial Highway 4.[8]1927 saw several new sections of road assumed that would become portion of Highway 4. On September 14, the route was extended toHighway 8 at Clinton. Further north, a new highway was created on June 22, 1927, betweenHighway 9 atWalkerton andHighway 6 atDurham. This latter section was designated as Highway 4A.[9]
On March 12, 1930, Highway 4 was extended to Durham, fully absorbing the route of Highway 4A in the process. Two months later, on May 11, it was extended south to Bedford Street (now Edith Cavell Boulevard) in Port Stanley.[10] On April 11, 1934, the highway was extended east to the intersection ofHighway 10 in Flesherton.[11] Highway 4 reached its maximum length of 275.6 kilometres (171.2 mi) when it was extended from Flesherton toHighway 24 in Singhampton in the mid-1970s.[12][13][14]
As part of a series of budget cuts initiated by premierMike Harris under hisCommon Sense Revolution platform in 1995, numerous highways deemed to no longer be of significance to the provincial network were decommissioned and responsibility for the routes transferred to a lower level of government, a process referred to as downloading. Portions of Highway 4 were transferred to the counties ofElgin,Huron,Bruce andGrey on January 1, 1998.[15]
The former portion of Highway 4 south of St. Thomas is now signed asElgin County Road 4. The former northern portion is broken into several different roads:
In 2017, theCity of London announced that Highway 4 through London would be re-signed and re-routed via Richmond Street, Sunningdale Road, and Wonderland Road, resulting in a shortconcurrency with Highway 401 between the Colonel Talbot Road and Wonderland Road interchanges.[16]
The following table lists the major junctions along Highway 4, as noted by theMinistry of Transportation of Ontario.[1]
| Division | Location | km[1] | mi | Destinations | Notes |
|---|---|---|---|---|---|
| Elgin | Central Elgin | −19.2 | −11.9 | Edith Cavell Boulevard | Port Stanley; former Highway 4 southern terminus |
| −17.3 | −10.7 |  Elgin County Road 4 begins County Road 21 west (Warren Street) | |||
| St. Thomas | −7.5– −2.2 | −4.7– −1.4 | 5.3 km (3.3 mi) gap in County Road 4 | ||
| Elgin | Southwold | 0.0 | 0.0 | Elgin County Road 4 ends Highway 4 begins Highway 3 east –St. Thomas,Aylmer County Road 3 west (Talbot Line) | Talbotville Royal; Highway 4 southern terminus |
| 2.1 | 1.3 |  County Road 11 east (Clinton Line) | |||
| Elgin–London boundary | Southwold–London boundary | 3.5 | 2.2 |  County Road 18 west (Southminster Borne) | |
| London | 6.0 | 3.7 | Highway 401 west –Windsor Colonel Talbot Road | Beginning of Highway 401 concurrency; Highway 401 exit 177 | |
| 8.8 | 5.5 | Highway 401 east –Toronto Wonderland Road | End of Highway 401 concurrency; Highway 401 exit 180 | ||
| 15.9 | 9.9 |  Highway 402 east toHighway 401 –Sarnia | Highway 402 exit 100 | ||
| 18.1 | 11.2 | Exeter Road | FormerlyHighway 135 | ||
| 18.4 | 11.4 | Wharncliffe Road S | Former routing of Highway 4 (before Jan. 2018) andHighway 2 along Wharncliffe Rd | ||
| 29.8 | 18.5 | Fanshawe Park Road W | FormerlyHighway 22 west | ||
| 34.0 | 21.1 | Richmond St / Sunningdale Rd | Former routing of Highway 4 via Richmond Street south | ||
| Middlesex | Middlesex Centre | 31.6 | 19.6 |  County Road 28 (Medway Road) | Arva |
| 37.2 | 23.1 |  County Road 16 (Ilderton Road) | |||
| Middlesex Centre–Lucan Biddulph boundary | 45.4 | 28.2 |  Highway 7 east toHighway 23 north –Stratford,Mitchell County Road 7 west (Elginfield Road) –Ailsa Craig,Parkhill | Elginfield | |
| Lucan Biddulph | 49.4 | 30.7 |  County Road 47 (Saintsbury Line) | Lucan | |
| 50.1 | 31.1 |  County Road 13 (William Street, Alice Street) | |||
| North Middlesex–Lucan Biddulph boundary | 54.3 | 33.7 |  County Road 20 south (Denfield Road) | Clandeboye | |
| 56.1 | 34.9 |  County Road 24 west (McGillivray Road) | |||
| Middlesex–Huron boundary | North Middlesex–Lucan Biddulph–South Huron boundary | 62.2 | 38.6 |  County Road 5 west (Mount Carmel Road) | Centralia |
| Huron | South Huron | 66.3 | 41.2 |  County Road 10 west (Crediton Road) | |
| 68.4 | 42.5 |  County Road 6 east (Kirkton Road) | |||
| 72.4 | 45.0 |  County Road 83 (Thames Road) | Exeter; formerlyHighway 83 | ||
| Bluewater | 80.3 | 49.9 |  County Road 84 (King Street) | Hensall; formerlyHighway 84 | |
| Bluewater–Huron East boundary | 84.3 | 52.4 |  County Road 12 (Kippen Road) | Kippen | |
| 90.4 | 56.2 | County Road 3 (Mill Road) | Brucefield | ||
| Central Huron (Clinton) | 100.7 | 62.6 | County Road 13 east (King Street) | ||
| 100.8 | 62.6 | Highway 8 –Goderich,Stratford Highway 4 ends Huron County Road 4 begins | Highway 4 northern terminus; continues as County Road 4 | ||
| North Huron–Morris-Turnberry boundary | 135.8 | 84.4 |  County Road 86 (Amberley Road) | Wingham; formerlyHighway 86 | |
| Huron–Bruce boundary | Morris-Turnberry–South Bruce boundary | 143.4– 144.9 | 89.1– 90.0 | Huron County Road 4 ends Bruce County Road 4 begins | 1.5 km (0.9 mi) Huron County Road 4 / Bruce County Road 4 concurrency |
| Bruce | Brockton | 161.8 | 100.5 |  Highway 9 west –Harriston County Road 20 north | Former southern end of Highway 9 concurrency |
| 175.3 | 108.9 | Highway 9 east –Kincardine | Walkerton; former northern end of Highway 9 concurrency | ||
| Bruce–Grey boundary | Brockton–Hanover boundary | 186.7 | 116.0 | Bruce County Road 4 ends Grey County Road 4 begins | |
| Grey | Hanover | 187.4 | 116.4 |  County Road 10 (7th Avenue) | |
| West Grey | 205.8 | 127.9 |  Highway 6 –Owen Sound,Mount Forest | Durham | |
| Grey Highlands | 230.7 | 143.4 |  Highway 10 –Owen Sound,Shelburne | Flesherton | |
| Grey–Simcoe boundary | Grey Highlands–Clearview boundary | 256.7 | 159.5 |   Grey County Road 124 /Simcoe County Road 124 | Singhampton; formerlyHighway 24; former Highway 4 northern terminus |
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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Numbering of the various provincial highways in Ontario has been commenced by the Department of Public Highways. Resident engineers are now receiving metal numbers to be placed on poles along the provincial highways. These numbers will also be placed on poles throughout cities, towns and villages, and motorists should then have no trouble in finding their way in and out of urban municipalities. Road designations from "2" to "17" have already been allotted...
