The Roads and Traffic Authority says the Pacific Highway is likely to remain closed at the Harwood Bridge until tomorrow.
There has been confusion about road conditions in the area over the weekend and throughout this morning.
But spokesman David Wright says there is still about half a metre of water over the road.
He says there are other options available for local traffic.
“Light vehicles are permitted to use the Pacific Highway north of Grafton to Ferry Park at Maclean,” Mr Wright said.
“Motorists can also access Iluka from the north, Yamba can be accessed from Maclean by Yamba Road.
“Local traffic, emergency vehicles, light vehicles carrying essential products, they’re also able to access Ulmarra, Brushgrove, Cowper and Maclean via the Pacific Highway,” he said.
Meanwhile, local greengrocers are struggling to keep food on their shelves.
Mullumbimby grocer Paul Madeiros says with the Brisbane markets closed by floods he’s been forced to buy from Sydney and appeal for more produce from local growers.
Mr Madeiros says prices have already gone up by 40 to 50 per cent.
“I had no choice but to do a couple of day runs up and down the coast trying to source some produce for my shop, because there was a period there I couldn’t get it from anywhere,” he said.
“A lot of the wholesalers that I went to, their shelves were empty also, and I’ve noticed some of the supermarkets in the area have empty shelves,” Mr Madeiros said.
Volunteers from the far north coast are heading to Queensland to assist flood victims.
Ten Rural Fire Service tankers have been sent north, along with 55 local RFS members.
Alstonville woman Kerrie Tolsen cancelled a planned family holiday.
Instead she will drive to flood-ravaged Murphy’s Creek later this week to deliver a caravan load of essentials.
“Went out, bought a caravan, my husband also sourced a generator, bought that and we’ve organised essentials to go up to Murphy’s Creek and we’re delivering that on Wednesday,” Ms Tolsen said.
“When you lose everything, something as simple as a toothbrush, and you’ve got to go out and restock absolutely everything, the cost is astronomical,” she said.