Vehicles have let the road on the A16 Keal Hill due to the snowy conditions.
Police are urging motorists to drive carefully after there have been a number of incidents in Lincolnshire this afternoon.
The A17 near Sleaford has only just reopened following a crash at Leadenham.
There has also been a collision in Avenue Road in Grantham.
Motorists are advised to allow extra time to complete their journey in difficult icy conditions.