WORK to widen the A12 is due to start within three years.

The scheme is part of a £1.1billion investment in East of England roads which will begin before 2020.

As part of the plans, the dual-carriageway is set to be windened between its junction with the A120, at Marks Tey, and Chelmsford. 

A consultation on the plans is set to be launched by Highways England on Monday, January 23.

Transport Secretary Chris Grayling said: “The Government is making a record investment to improve our motorways and major ‘A’ roads across the country to get motorists to their destinations more quickly, easily and safely.

“These vital schemes in the East of England will not only help relieve congestion, they will also link people with jobs and businesses with customers, helping boost the region’s economy and improving lives.”

The A12 scheme, which will be completed alongside improvements in Suffolk, Norfolk and Cambridgeshire, was initially announced in December 2014. 

Jim O’Sullivan, chief executive of Highways England, added: "These improvements are made possible by the Government’s £15 billion investment in our strategic roads. 

"They are much needed by the half a million drivers who use them every day. 

"Each scheme has been developed by working with local partners and through this consultation we are welcoming views on them. 

"I encourage anyone with an interest in these roads – whether they drive on them, live near them or depend on them for trade – to get involved.”