A11 dual carriageway in Suffolk and Norfolk to be completed
Work is starting on building the final stretch of dual carriageway on the A11 in Suffolk and Norfolk.
Roads minister Stephen Hammond will oversee the start of work on a nine-mile (14.5km) section between Fiveways Roundabout at Mildenhall and Thetford.
The project is expected to cost about £105m and will open to traffic by the end of 2014.
Trees have been cleared to allow road widening and fencing built to prevent wildlife getting onto carriageways.
Special tunnels have been built to allow wildlife to cross the road.
The village of Elveden will be bypassed and its distinctive war memorial will be preserved on a site between the carriageways.
When open road users will be able to travel between Norwich and the M11 on a continuous dual carriageway.
Ecological surveys found species including Breckland mugwort plants, reptiles, bats, badgers, great crested newts and birds which need protection.
Safety barriers and fencing will offer protection to wildlife and workers during construction and after the road is completed.
Environmental fencing for wildlife is now being installed alongside the existing carriageway.
This includes about 4.5 miles (7.2km) of fence to keep out reptiles and 2.2 miles (3.5km) for newts.
Since October last year 250 common lizards, 50 grass snakes, six adders and six great crested newts have been trapped and relocated.
Three badger tunnels are being installed to allow animals to cross under the dual carriageway.
Fencing will also be provided to channel the badgers to the crossing points.