Highways and byways

What happened to your stimulus dollars? They are paving and repaving America - they are being steamrolled into every roadbed in the interstate highway system. And when you aren't dodging workman, pylons, and being pushed over to the shoulder by giant fire-breathing, road-building equipment, the roads are smooth as satin. With a nice, new car and a nice, new road, you can't hear or feel the road. A strange sensation. How long does a road last?