Prime Minister David Cameron was today pressed for an early start to the dualling of the A11 in Norfolk and Suffolk so that economic benefits could be felt as soon as possible.
Norwich South MP Simon Wright asked for the scheme to start early, to which Mr Cameron confirmed that the Highways Agency were already working on the plans.
Construction work will start before the end of the current spending review period.
In November 2008, former transport secretary Geoff Hoon moved the scheme forward from 2012/13 to 2010 in anticipation of an £8 million saving.
The project, which covers the improvement to dual two-lane carriageway standard for nine miles between Fiveways Roundabout at Barton Mills and the roundabout at the southern end of the Thetford Bypass, is expected to cost up to £147m.
Mr Wright said: “It is reassuring to know that work is currently ongoing behind the scenes, and I’ll keep pressing the case for the earliest possible start to construction.”