Sad to say but some of the interstate roads are older than my 66 yrs. We can't keep putting off doing work on infrastructure. Roads in Europe are designed to last 60 yrs. Roads in the US are designed to last 30 yrs. How do I know? My dad was a construction superintendent and his brother was a civil engineer who designed the BART in the Bay area. We might be the best country to live in for our freedoms but Not for our roads.