Residents are being given their say on plans for a controversial £89m link road between two Sussex coastal towns.
The council said the link road would help create 2,000 jobs
East Sussex council has submitted detailed proposals for the Hastings to Bexhill link road and opened them up for a six-week consultation.
It said studies had predicted that the road would help create 2,000 jobs while also cutting accidents.
But campaigners claim the carriageway would pass within metres of a Site of Special Scientific Interest.
Councillor Matthew Lock said: "It has taken a lot of time and hard work to make sure this proposal has excellent economic and environmental credentials, and I am delighted that we are now at the stage of seeking planning permission.
"I believe that the link road is essential for the future regeneration of Hastings and Bexhill, but it is now time for members of the public to make up their own minds."
The county council said the road would enable developers to build 1,600 new homes in north Bexhill and 1,000 houses elsewhere in the Rother district.
It also claimed the development would reduce road casualties by an estimated 22 a year, cut down noise and pollution on the existing road and create 2,000 jobs valued at £44.8m.
Transport 2000 and environmental groups have written to the government calling for the scheme to be re-assessed, claiming other alternatives were not fully considered.
The consultation period begins on 25 May.