Lincolnshire Police have declared a critical incident due to snow and ice across the county on Wednesday.
The police are working with partner agencies as part of a Strategic Coordinating Group to alleviate traffic issues and respond to people needing help and support.
They have also drafted in extra 4×4 vehicles and military support.
Over 70 collisions have been reported since 7am this morning.
An amber weather warning from the Met Office remains in place for snow until 6pm.
The A46 in Lincoln was closed in both directions for a number of hours after lorries got stuck between the Carholme and Riseholme roundabouts. Traffic is beginning to move again very slowly, but traffic built up across the city as a result.
People stuck in traffic have been advised to stay in their vehicles, keep warm and speak to officers about any particular concerns
The SCG is currently liaising with the army to ensure medical provision is provided.
It is advised to not travel unless it is absolutely necessary.
Deputy Chief Constable Craig Naylor said: “We are dealing with a serious situation which is impacting on services for all agencies. The roads are in a very difficult position. The plans we have put in place as a SCG allow us to keep things going but these are reduced services under significant demands.
“If you can avoid calling for an ambulance or avoid calling the police or fire service please do. Please only call 999 in an emergency.”
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