The closure takes effect on Friday – just one day after it was announced by Orange City Council.

Heavy traffic will also be re-routed down the just-rebuilt William Street next Tuesday to allow for Anzac Day services to go ahead in Robertson Park and Summer Street.

Council infrastructure committee chair and councillor Glenn Taylor said a two-kilometre section of the bypass between Bathurst Road and Icely Road had to be closed to allow for a specialised seal to set and cure.

“Summer Street used to be filled with the sights and sounds and smells of heavy vehicles passing through every few minutes and we will have to put up with that again for a short time,” he said.

“We can’t avoid closing the road but we can minimise any disruption to Orange’s Anzac Day services.”

Cr Taylor said contractors were ripping up the top 300 millimetres of the road to add the new surface while also adding drainage channels to help clear water.

The bypass opened in August 2012 but has been criticised for its deterioration.

He said council staff had notified “major [transport] companies such as Finemores and Western Freight” of the closure however, the owner of another North Orange-based trucking firm, BMJ Truckin’, Marissa Strom-Bennie, said it was news to her.

“They haven’t notified us,” she said.

“It will affect us, it’s a bit inconvenient, it’s just the time factor.”

Cr Taylor said the next stage of the bypass roadworks would be adding a deep layer of hot mix between Astill Drive and Ophir Road.

“This will leave only one section, between Hill Street and Clergate Road, to be completed,” he said.

However, he said that work will not need the Northern Distributor Road to be closed.

Cr Taylor said other major work was continuing on Burrendong Way, Clergate Road and Ophir Road as well as re-aligning the intersection between Kenna Street and Wentworth Avenue, patching Pinnacle and Canobolas roads, building a new roundabout at Woodward and Moulder streets plus upgrades in East Orange.

“As the road building season draws to an end, crews are working flat out across the city,” he said.

Electronic message boards will be placed on roads leading into Orange to alert motorists of the closure.