Drivers are having to take diversions for the next five days as repair work is undertaken at a busy junction on the A47 Dereham Bypass.
Resurfacing work has started at the Etling Green turn off with three-way traffic lights in operation.
It means drivers heading along the A47 towards Norwich cannot turn off for Dereham at Etling Green and have to carry on to North Tuddenham and return to the town on the B1110.
Motorists going along Norwich Road cannot join the bypass at Etling Green just past the football club and are being diverted to get on the A47 at Tuddenham.
No other junctions are being affected.
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