Crawley MP Henry Smith wants assurances the county’s roads are ready for another cold winter.
He wrote to Kieran Stigant, chief executive of West Sussex County Council, to ask if the highways authority was “adequately prepared”.
Many people have complained about potholes.
Henry said: “Last winter certainly had a significant affect on the condition of our roads and proved an understandable challenge for the council to keep pace with the necessary repairs.
“Recent successive bad winters have led to a deterioration of our unclassified roads in West Sussex.
“The impact of last year’s wet weather caused over 30,000 potholes and road damage estimated at nearly £10 million.
“This summer a large county-wide programme of street resurfacing was carried out to help prevent pot holes from occurring.
“With the weather now turning cold, I have called on West Sussex County Council to ensure that it puts in place a sustainable investment strategy to create resilience in the more than 2,500 mile network of West Sussex highway, particularly for the economically important Crawley and Gatwick area.”