The resurfacing of the Dysart Road/Barrowby Gate and Goodliff Road/Trent Road junctions is complete.
Cllr Richard Davies, executive member for highways, said: "These are two key junctions for the town, and it's vital we keep them in good condition.
"Both junctions had suffered significant wear and tear over the years, but the resurfacing has given them a new lease of life.
"I'd like to thank motorists for their patience while these important works were carried out. I'm confident the long-term gain will greater outweigh the short-term disruption."