The interstate highway system got passed in 1956. It is now comprised of almost 50,000 miles of highway, and cost almost $500 Billion in todays dollars.
There would have been a whole lot of rebar used in the construction of all the concrete - bridges, overpasses, the concrete sections in Los Angeles and other high volume areas
The interstate highway system got passed in 1956. It is now comprised of almost 50,000 miles of highway, and cost almost $500 Billion in todays dollars.
There would have been a whole lot of rebar used in the construction of all the concrete - bridges, overpasses, the concrete sections in Los Angeles and other high volume areas