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| Route information | ||||
| Maintained bySANRAL andGDRT | ||||
| Length | 192 km (119 mi) | |||
| Major junctions | ||||
| South end |   M71 /M81 inBryanston | |||
| Major intersections |  N1 (Western Bypass) inBryanston R564 inFourways   N14 /R562 /R114 inDiepsloot R104 inHartbeespoort R514 near Hartbeespoort R513 near Hartbeespoort N4 nearBrits R566 near Brits R512 in Brits R516 | |||
| North end |  R510 nearThabazimbi | |||
| Location | ||||
| Country | South Africa | |||
| Major cities | ||||
| Highway system | ||||
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TheR511 is aRegional Route inSouth Africa that connectsSandton (north ofJohannesburg) withThabazimbi viaHartbeespoort andBrits.[1]
It is an alternative route to theR512 for travel between theJohannesburg Metropole and Brits.
It begins as Winnie Mandela Drive (formerly William Nicol Drive; renamed on 26 September 2023[2][3][4][5][6]) at its interchange with theN1 highway (Johannesburg Western Bypass) inFourways, a suburb ofSandton,Johannesburg Metropole,Gauteng. South of the N1, the road is designated theM81.[1]
Heading north out of the city, it passesMontecasino, before crossing theR564 (Witkoppen Road). North of Witkoppen Road, it passes through the affluentLonehill andDainfern suburbs (where it crosses theJukskei River) to reach the township ofDiepsloot. Just after Diepsloot, it meets the western end of theR562 fromMidrand and forms an interchange with theN14 highway.[1]
On the other side of the N14 interchange, it enters theCity of Tshwane Metropolitan Municipality and intersects with theR114 at a staggered junction (co-signed for 1.6 kilometres). The road then reaches a t-junction, where the north–south road becomesPretoria'sM26 metropolitan route, and the R511 becomes the road to the north-west towardsHartbeespoort via a left turn. The R511 crosses theHennops River (becoming a short mountain pass) and proceeds to meet theR104 road (WF Nkomo Street; Elias Motsoaledi Street) before flying over Pretoria'sM4 freeway (Magalies Toll Freeway) near Flora Park. The R104 joins the R511 and they become cosigned in a north-westerly direction.[1]
After passing over the M4 freeway, the route crosses into theNorth West and enters the Hartbeespoort suburb of Flora Park in a north-westerly direction. In the Melodie area of Hartbeespoort, the R104 remains on the same road westwards (Tielman Street) towards theHartbeespoort Dam Wall while the R511 becomes Beethoven Road northwards. After 3 kilometres, the R511 meets the western terminus of theR514 from Pretoria at a t-junction and the R511 becomes the road towards the north-west from this junction. After 3 kilometres, it meets the western terminus of theR513 road, which is coming fromPretoria North. The R511 then meets a road which goes south-west to the western side of theHartbeespoort Dam.[1]
The R511 then forms an interchange with theN4 highway (Platinum Highway). It then crosses theR566 road and passes north-westwards through the town ofBrits as Hendrik Verwoerd Drive, where it meets the northern terminus of theR512 (Van Velden Street) in the town centre.[1]
From Brits, the R511 continues heading north-north-west, passing throughBeestekraal before crossing intoLimpopo. It then meets the western terminus of theR516. It ends just south ofThabazimbi at a junction with theR510. From Hartbeespoort to the R510 junction, it follows theCrocodile River.[1]