Question to the Department for Transport:

To ask the Secretary of State for Transport, pursuant to the answer of 21 October 2021 to Question 58329 on Roads: Snow and Ice, what the level of salt in the emergency salt reserve was on 1 October in each of the years from 2015 to 2020.

Pursuant to the answer to question 58328, there were 259,021 tonnes of salt in the emergency salt reserve managed by National Highways as of 1^st October 2021. National Highways reports these totals annually, holding the reserve under the provisions of the National Salt Reserve Protocol. Precise totals for 1^st October specifically in previous five years are not currently available. The totals for previous years, 2015-2020, are included in the table below:

No salt has been added or removed from these piles since 2015, though the totals gradually reduce each year due to environmental factors.