In Saxony, Saxony-Anhalt and Thuringia, local authorities have noticed a lot of road damage after the winter. In many cases, however, the extent and amount of damage cannot yet be quantified, according to a survey of municipalities and federal states conducted by Deutsche Presse-Agentur.
"The winter is not over yet, but I assume that more money will have to be spent on repairing damage this year than in previous years," said Saxony-Anhalt Infrastructure Minister Lydia Hüskens (FDP), for example. The frequent changes between frost and thaw are particularly hard on the roads.
Water penetrates existing cracks and pores in the road surface due to temperature fluctuations around freezing point, freezes, expands and contracts again when it thaws. This recurring stress leads to an increase in potholes, cracks and smaller damaged areas.