The road is blocked after a crash in a notorious collision hotspot on the A46 on Thursday afternoon.
The crash involving two cars, which was reported to Lincolnshire Police at 4pm, happened at the A46 junction with Lincoln Road and Welton Road close to the Centurion Garage
A spokesperson for Lincolnshire Police said the vehicles are in the road and unable to move, so the road is blocked.
Police are currently assisting at the scene, but there are not believed to be any injuries.
An inquiry into the proposed roundabout at the A46 Welton/Dunholme junction, which is considered a collision-prone stretch of road, has been dropped after all objections to the Lincolnshire County Council scheme were withdrawn.
The project is set to start next summer and will take between nine months to a year to complete.