The U.S. Interstate Highway System has almost 50,000 miles of controlled-access highways spanning the country.
Source:
Image credit: Matt H. Wade, http://en.wikipedia.org/wiki/User:UpstateNYer. CC BY-SA 3.0, http://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons.
Page/s that contain this image:
Last modified:
25 June 2015 - 11:10am