N1 Western Bypass (Johannesburg)

National route N1
Route information
Length	37.9 km (23.5 mi)
Major junctions
South end	N12 Diepkloof Interchange, Soweto
Major intersections	M79 Rand Show Road, Diepkloof M70 Soweto Highway, Diepkloof N17 near Riverlea R24 Albertina Sisulu Road Interchange, Bosmont M8 14th Avenue Interchange, Quellerina M5 Beyers Naudé Drive Interchange, Randpark Ridge R512 Malibongwe Drive Interchange, Strijdompark R511 Winnie Mandela Drive, Bryanston M9 Rivonia Road Interchange, Woodmead
North end	N3 / M1 Buccleuch Interchange
Location
Country	South Africa
Highway system
Numbered routes of South Africa

The Western Bypass is a section of the N1 and the Johannesburg Ring Road located in the city of Johannesburg, South Africa. Known at the time as the Concrete Highway, the freeway was initially opened in 1975 as a route to avoid the city centre of Johannesburg and to provide access to the western areas of the Witwatersrand. From the south, the Western Bypass begins at the Diepkloof Interchange in Soweto, where it splits from the N12 freeway and ends at the Buccleuch Interchange, where it merges with the N3 Eastern Bypass, M1 South and N1 Ben Schoeman freeways.

The Western Bypass is the longest section of the Johannesburg Ring Road. The freeway is mostly four lanes wide in either direction, but fans out into six lanes between Rivonia and Buccleuch, where there is heavy traffic moving north towards Pretoria. The Western Bypass is part of the N1 road that spans the length of South Africa.^[1][2][3][4]