When cities repave roads, why do they leave the street ripped up for a couple weeks before repaving?

Question

I was told once it’s because cities project the job to take say 5 weeks, so they rip it up the first week, leave it for 3 weeks, then repave the last week. And they do this so everyone gets a paycheck for the full 5 weeks. Surely there has to be a different reason?

In: Other

Answer 1

Our problem down here is they will rip up a street and take 3 months topit in new pipelines, then only partially pave just so it is no longer dirt. Then a year later they get it all repaved properly.