Wet weather has been the cause of delays to roadworks designed to improve the A45/A5 crossroads in Weedon.
Northamptonshire County Council announced back in August plans to see the lanes widerened in a bid to improve journey times and ease congestion in one of the busiest parts of the county.
The scheme, which cost £950,000, was expected to be finished at the end of October but problems with the weather led to delays.
A spokesman for the authority said: “Wet weather over the past month meant that works at the junction of the A45/A5 were delayed by about a week.
“We apologise for any extra inconvenience this has caused people but now the traffic lights at the junction are fully operational.
“The new lights have been working since Friday.
“There is some minor work still taking place but the junction should now be fully usable.”
The repairs to the crossroads cost £950,000 and were funded by the Government’s growing places fund, which is designed to help push forward housing and economic growth.
The chairman of Weedon Bec Parish Council, Stuart Jacks, is hopeful the roadworks will help people in the village.
He said: “We have noticed that people are starting to come through the village more and more over the past few weeks because people have been trying to avoid the roadworks. We know there has been one or two near misses because some cars are not used to the narrower roads in the village.
“However while I think it will alleviate some of the problems short term we have had, I don’t think long term it will help. There are soon going to be more cars on the road and more using this set of crossroads.”