Gloucestershire Highways covers the county’s strategic network, meaning its A and B-roads, along with routes to fire stations, police stations, hospitals, and major bus routes.
One salt dome, of which there are four in Gloucestershire, can hold 4,500 tonnes of salt.
In a typical winter, without a “big snowfall event”, Midgley said that was enough salt to last Gloucestershire the whole of the winter, although they “don’t chance it” and order resupplies.
“For a colder night, we can spread more but it’s still got to dissolve into the water, and we need cars to actually help us crush that salt and make it dissolve,” he said.