A multi-vehicle collision reported on the A17 heading eastbound at Heckington has now been cleared, say Lincolnshire Police.
Three cars are were involved but no injuries were reported, according to a police spokesman.
Emergency services attended and police initially advised drivers to avoid the area.
The collision was reported at 7.22am, partially blocking the road between the two turn-offs at each end of the Heckington bypass and caused tailbacks in both directions for traffic travelling between Sleaford and Boston.
The road was cleared by 7.53am.