The Fiveways to Thetford dualling and improvement scheme will widen 5.5 miles of the A11 – a key route between the M11 and Norwich – and build a new 3.6 mile bypass around the village of Elveden.
Birse Civils was awarded an early contractor involvement (ECI) design and construct contract in November 2009. Project cost is estimated to be in the range of £94m to £113m. The Highways Agency said that nearer to work starting it would be able to quote the expected out-turn cost of the scheme and cost savings identified.
The Highways Agency is working towards a completion date in December 2014.
Roads minister Stephen Hammond said: “The start of construction in January shows our commitment to deliver much-needed improvements to the UK’s infrastructure now. The new bypass and widening of the A11 will bring significant benefits for the economy, road users, and local people, by improving road safety and removing the bottlenecks.”