Traffic warning: Sinkhole forces N1 closures – here are the affected areas

A troublesome sinkhole, which appeared alongside major highways running through Centurion last month, is again responsible for a set of road closures on the N1 – and some motorists may have their weekend travel disrupted.

Road closures: Latest traffic updates and warnings for the N1

The only upside here is that SANRAL have been able to warn us well in advance about the upcoming N1 closures. A team of geological experts need to examine the sinkhole on Sunday evening – an excursion that will require a partial highway shutdown.
The team on site will be there to assess how the site can be ‘rehabilitated’, ensuring the safety of road users in the region. We’ve got the full details about the proposed lane closures here:

  • The N1 southbound will be the affected carriageway, with all lanes – apart from one – closing overnight.
  • The highway will be officially closed off at 23:00 on Sunday 6 February
  • It will then reopen at 4:00 on Monday 7 February, completing a five-hour closure.
  • The road will be closed between the Flying Saucer Interchange in Centurion, down to Botha Avenue where the N1 meets the R21. SANRAL have advised motorists to follow two alternative routes…
  • Coming from Polokwane? Head off at the Proefplaas Interchange, join the M3 at Fountains, then get on the N14.
  • Coming from OR Tambo Airport? Stay on the R21 towards Fountains, and take the exit onto the N14.

What is the deal with Centurion and its sinkhole?

Centurion is heavily maligned for its terrible ability to manage rainfall. More often than most, the city finds itself underwater during any decent storm, with low-lying bridges and busy commuter routes flooding at frequent intervals throughout the year. The sinkhole emerged just metres away from the N1/R21 highways in January.
Indeed, the cause has not been helped by the large presence of dolomite in the ground here. When it gets soaked through, the earth begins to crack and break up, causing sinkholes to appear. Unfortunately, this latest incident couldn’t have placed itself more awkwardly.

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