Two sinkholes formed on February 14 along the R21 northbound carriageway towards Pretoria, past the Olifantsfontein interchange. The South African National Roads Agency Limited (Sanral), therefore, cautions the public and road users of road closures. “The R21 northbound will be reduced to two lanes in the direction of Pretoria just after the Olifantsfontein interchange for the foreseeable future, resulting in associated congestion during peak hour periods. "Road users are advised to take this into account in their daily planning and consider alternative routes such as the M18 and M57, which run parallel to the west of the R21 in the vicinity of the affected area,” says Sanral engineering executive Louw Kannemeyer.
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