Major £250million project will focus on section of road between South Molton and Bideford.
Detailed proposals for a major overhaul of the North Devon Link Road will be revealed at a series of public consultations taking place in June.
The latest blueprint will outline improvements being drawn up for the A361 and A39 between Borner’s Bridge, north of South Molton, and the Heywood Road Roundabout at Bideford.
This will include widening the road to provide more overtaking opportunities and improving the junctions.
Around Barnstaple itself, an option has been developed to improve the capacity of junctions and to widen the existing road to provide two lanes in each direction, with a central double white line and a speed restriction.
No improvements are being considered between Tiverton and South Molton at this stage.
The estimated cost of the full scheme is £250 million, although it could be built in phases.
A consultation, which will run from Friday, June 9 until Friday, July 28, will share more details about which sections of road the council is looking to widen, and which junctions could be upgraded.
Public exhibitions will be held at Green Lanes Shopping Centre in Barnstaple on June 16 and 17 from 9am to 5pm; at Bideford Town Hall on Tuesday, June 20 from 12pm to 8pm; and at South Molton’s Amory Centre on Friday, June 23 from 12pm to 8pm.
There will also be an unmanned exhibition at Taw View in Barnstaple from Monday, July 24 for one week.
An online questionnaire available at new.devon.gov.uk/haveyoursay
Devon County Council submitted a business case to the Government in October but the latest plans account for more survey work that has taken place since.
Feedback from the consultation will help refine the ‘scheme option’, which will be submitted as part of a funding bid to Department for Transport in December.
Councillor Andrea Davis, cabinet member for infrastructure, development and waste management, said: “Feedback from last year’s consultation showed overwhelming support of 95 per cent backing the need for a scheme.
“The county council has been looking at a raft of improvements along the route to drive forward economic growth. “We’re keen to hear what people think of what is being put forward so that the scheme can be further developed for an Outline Business Case, which is likely to include three separate costed options with one preferred option.”