Construction started on Monday 28 November 2016 and is on target to be completed by December 2020.
Since work started, more than eight million working hours have gone into the project, and eight million cubic metres of earthworks have been moved across the site – equivalent to more than three Great Pyramids of Giza.
Nine new bridges will have opened to traffic by the end of the year and construction is well under way on 25 more.
Project Director for the A14 Cambridge to Huntingdon improvement scheme David Bray said: “Our amazing team has been working incredibly hard to deliver this upgraded A14, and most days we have up to 2,700 staff working across more than 20 miles to build the new roads and bridges that are needed.
“Working on this epic project has been remarkable so far: from seeing the new road emerge as we moved earth into place for its foundations, to the wide array of bridges and structures being built, the fantastic discoveries of our archaeological team and the industry-leading work our environmental team is carrying out.
“We know drivers can be frustrated by roadworks, particularly when they’re in place for a long time, but we’re delighted to announce at this two-year anniversary that we’re on time and on budget.”
Main contractor Balfour Beatty/Costain/Skanska won the Best Civils Project to Work on at this year’s Construction Enquirer Awards.