Drivers have been warned they could face months of disruption on the A11 when work starts next week to make a junction near Norwich safer.
A scheme to improve safety at the junction of the A11 and Station Lane near Ketteringham begins on Monday (November 22).
The work will involve closing the central reservation gaps, widening the southbound carriageway of the A11 to provide an improved left turn exit slip and junction at Station Lane South.
Highways Agency bosses said the safety work would also improve facilities for pedestrians and cyclists and allow the drainage system to be made better.
Jacques Azulay, project manager for the Highways Agency, said: 'The closure of these two central reservation gaps will considerably add to the safety of vehicles seeking to cross the A11.
'Crossing two lanes of frequently fast moving traffic can be hazardous and though our planned work will result in a slightly longer journey for those seeking to cross the A11 at this point it will make the crossing much safer.'
Work will be carried out between 7am and 7pm Monday to Saturday with occasional overnight work between 8pm and 6am and will see lanes closed.
Highways Agency bosses said occasional closures of the A11 will be necessary, with diversions via the B1172 in Hethersett fully signed.
The work is expected to be completed by mid February next year.
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