A bomb search is to be carried out in Gorleston as a main road is closed for five days.
Riverside Road between the Ferry Hill junction and Herringport Bespoke Kitchens & Bedrooms will be closed from December 9 to December 13 as the search is carried out for bombs and ordnance left over from the Second World War.
Norfolk County Council says the investigation is essential to assess site conditions for the installation of a new retaining wall, which will protect the carriageway from erosion and flood risk.
The construction of a 150-metre sheet-piled retaining wall is planned for next year, pending permits and planning approval.
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The survey work is set to be carried out by Brimstone, a government-approved contractor, which will be on-site from 8am to 4pm throughout the week.
A spokesman for the county council said: "If any explosives are found, appropriate safety measures will be implemented. Local businesses and residents will be kept informed.
"Although the likelihood of finding anything is very low, Norfolk County Council will ensure the utmost care and diligence whilst conducting this operation."
There will be a diversion in place during the work along Quay Road, Pier Plan, Baker Street, Church Lane, B1370 Church Road, C630 Beccles Road, C631 William Adams Way and Malthouse Lane.
In February 2023 a German bomb was found leading to people being evacuated during a major emergency services operation.
It blew up on February 10 2023.
Army specialists were attempting to disarm it when there was an unplanned detonation at about 5pm.
People on social media said they heard a loud bang and felt buildings shake 15 miles away.
Cordons were put in place when the bomb was first discovered close to two gas pipes.
The device, about 1m long and weighing about 250kg, was discovered on Southtown Road by a contractor working on the third crossing over the River Yare.
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