More effective, but not cheaper in terms of interstate travel. Some pieces cost millions of dollars to build. A good example was Interstate 70 through Glenwood Canyon in Colorado. There is also the Johnson (eastbound) and Eisenhower (westbound) tunnels in that same state. The cheapest portion has to be I-95 through Delaware.
More effective, but not cheaper in terms of interstate travel. Some pieces cost millions of dollars to build. A good example was Interstate 70 through Glenwood Canyon in Colorado. There is also the Johnson (eastbound) and Eisenhower (westbound) tunnels in that same state. The cheapest portion has to be I-95 through Delaware.