Authorities in Johannesburg have warned that ongoing illegal excavations beneath several major bridges along the M1 and M2 motorways could eventually threaten critical infrastructure if urgent action is not taken.
The warning follows a recent inspection conducted by the Johannesburg Roads Agency (JRA), which identified extensive damage around bridge embankments and support areas caused by the removal of bricks, sand and other materials.
Although engineers have confirmed that the bridges remain structurally safe at present, officials say continued excavation could create serious risks in the future.
JRA Chief Executive Officer Zweli Nyathi said the inspections were launched after concerns emerged about large numbers of people living beneath the bridges and evidence of ongoing damage to surrounding infrastructure.
Engineers Confirm Bridges Remain Safe For Now
According to Nyathi, the assessment covered multiple bridges along both major routes, including structures near End Street and Anderson Street on the M2.
Inspectors discovered missing bricks and signs that sand had been removed from embankments that help support the surrounding infrastructure.
Despite alarming photographs circulating online, engineers accompanying the inspection concluded that the primary bridge structures remain intact.
Nyathi explained that the key load-bearing components, including support pillars and reinforced steel elements beneath the surface, have not yet been compromised.
However, he warned that if illegal digging continues unchecked, the risk to the surrounding infrastructure will increase significantly.
Officials are particularly concerned that individuals involved in the excavations could eventually target steel components, cables or other critical assets located beneath the bridges.
Security Measures Being Considered
Investigators also discovered makeshift living spaces dug into the ground beneath some bridges. Authorities believe these excavated areas provide direct access to underground municipal services and utility networks.
The inspections revealed additional signs of infrastructure-related crime, including missing guardrails and suspected cable theft activity.
JRA has already dispatched teams to address urgent safety hazards, particularly damaged or missing roadside barriers that could place motorists at risk.
Nyathi acknowledged that the extent of the excavations suggests the activity has been occurring for a prolonged period.
He further revealed that officials encountered aggressive individuals during the assessment, including people believed to be involved in illegal mining activities.
According to Nyathi, some individuals appeared to be armed, forcing inspection teams to request additional security support while carrying out their work.
The city is now evaluating whether permanent security patrols should be deployed around vulnerable bridge sites to prevent further damage.
Officials argue that the cost of security measures may be significantly lower than the potential financial and human costs associated with major infrastructure failures.
While motorists can continue using the affected roads safely for now, authorities stress that immediate intervention is required to prevent further deterioration and safeguard some of Johannesburg’s most important transport corridors.
Source: 702 Drive / Johannesburg Roads Agency (JRA)