M4 Tunnel Closure: Emergency Repairs Over Roof Safety Fears
Sydney's WestConnex M4 tunnel closed after bulging 'shotcrete' lining sparked collapse fears, causing major delays. Get the full explainer on the cause and safety assurances.
Category : Search result: WestConnex
Sydney Tunnel Chaos: 4-Hour Gridlock Over Roof Fears
Hundreds of Sydney drivers were trapped for up to four hours in a major tunnel amid fears of a 'shockcrete' roof collapse. Read the full report on the emergency closure and traffic chaos.
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