Overnight Northbound Tunnel Closure 4th September 2026
During this time, the Southbound tunnel will operate in a bi-directional layout to accommodate travel both Northbound and Southbound.
Here’s what to expect:
South Side of the River

Southbound – Continue as normal in one lane.
Northbound – Follow cones and diversion signage to cross over to the Southbound carriageway.
North Side of the River

Southbound – Continue as normal in one lane.
Northbound – You will travel through the tunnel in the left lane, follow cones and diversion signage to cross back over to the Northbound carriageway.
As always, we endeavour to minimise traffic disruption and thank you for your patience.
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