The asphalt they use is not the problem. It is the crappy fill material that they build the road base with.
The other problem is that since they are building roads in a desert, they don't give a lot of thought to drainage. With the type of storms we are
seeing right now, it is not just run-off, but ground water coming up through the base material where it is close to bedrock.
An eighteen-wheeler passing over a wet spot will jiggle that miserable base material like it was cornstarch in a bowl! |