The closure of the A151 between West Pinchbeck and Pode Hole has been extended for another week.
The Lincolnshire County Council work to replace the carriageway was due to end this week after three weeks of work.
However they now say it’s not likely to reopen until around Friday, August 20.
Karen Cassar, assistant director for highways, said: “Although the team is continuing to work hard to have the works complete as soon as possible, a number of unexpected issues on-site mean that works will now be complete at the end of w/c August 15.
“The issues we’ve encountered include weaker ground than expected in some areas, which has meant deeper excavations and more stone and other materials that need to be laid before can we lay tarmac.
“The underground steel mesh is also closer to the road surface than expected in some areas which has meant we’ve had to manually remove the road surface instead of planing it out.
“Despite the ground surveys and other pre-works we carry, these sorts of issues often don’t rear their head until we’re on-site working – but please rest assured that we’re doing everything we can to finish our improvements at Dozens Bank as efficiently as possible.”
