Work has started on easing one of the UK's worst traffic bottlenecks, on the A30 at Goss Moor in Cornwall, after months of waiting.
The dualling will bypass the area's notorious Iron Bridge
A new dual carriageway is to be built skirting the northern edge of Goss Moor, connecting two dualled sections between Bodmin and Indian Queens.
It was approved last November, but delayed by a legal challenge.
Some environmentalists have criticised the £69m scheme, saying it could wipe out rare species of flora and fauna.
The plans aim to ease congestion around the Iron Bridge, a notorious traffic and accident blackspot.
It is expected to take two years to complete the scheme.