As part of the design and build scheme Sisk has appointed consultant WSP to work on the design elements.
Preparation work will begin early this year and it is anticipated construction will start in the summer. Completion of the Phase 1b scheme is expected to be late 2022.
Nick Culshaw, Managing Director, UK Civils and Rail, John Sisk & Son said: “I’m delighted that John Sisk & Son has been awarded the A629 project. It’s a fantastic opportunity to collaboratively develop Calderdale and the surrounding area.
“We’re excited to start work on this project and help provide these benefits to the people of Calderdale.”
Calderdale Council’s Cabinet Member for Regeneration and Strategy, Cllr Jane Scullion, said: “Phase 1b of the A629 project represents the largest civil engineering project Calderdale will have undertaken for several decades.
“It will see the landscape around the Calder and Hebble junction completely transformed.
“The new link road bridge and other improvements will make a real difference to traffic flow in the area, subsequently improving air quality and reducing ‘rat running’ on smaller village roads in the area.
“The landscape around the area will also be improved with the demolition of the derelict former Punchbowl Pub, making a real difference to the gateway to Halifax.
“I’m pleased that a contractor has now been appointed for the project, allowing initial work to begin this year.”