Side point here, but that's a very justifiable cost. The damaged to a road is proportional to the fourth power of the axle weight [1]. That's something that amuses me when drivers complain that bike riders don't pay a "road tax". If they did, it would be a laughably low amount compared to what a car driver would have to pay in proportion.

[1] https://www.insidescience.org/news/how-much-damage-do-heavy-...