With the Milton-Ulladulla bypass preferred route expected to be announced in the coming weeks, Burrill Lake residents are concerned about the possibility of the bypass entering back onto the highway just north of their village, causing traffic chaos during peak times.
Burrill Lake Community Association president Ian Carroll believes the RMS has already chosen its route, and has labelled the public consultation as a "smoke screen".
He says it's the biggest issue that will hit the area for the next 100 years and is calling for an alternate route, through bushland west of the lake, to be considered.
Mr Carroll says the road must also bypass Burrill Lake and Dolphin Point which is a fast-growing area.
He also said the new bridge and associated roundabaouts already caused congestion for about four months of the year and funnelling bypass traffic into the mix would amplify the problems.
Member for South Coast Shelley Hancock has spoken to Roads Minister Minister for Roads Paul Toole and says she will be taking the community's concerns on board.
"I will be talking discussing options with the RMS this week," she said.
The state budget has allocated funding for planning and consultation to continue.