Portal:U.S. roads/Did you know/December 2018


 * ...that although Interstate 8 does not cross the US-Mexico border it has multiple U.S. Border Patrol checkpoints, due to its proximity to the border near Yuma, Arizona and Jacumba, California?
 * ... that Interstate 75 is the only freeway in the Upper Peninsula of Michigan?
 * ... that sections of Washington State Route 821 are shut down for annual cattle drives, a marathon, and a heritage tractor run?
 * ...that Pennsylvania Route 297 was renumbered from Pennsylvania Route 295 to avoid a number conflict when Interstate 295 was extended into Pennsylvania?
 * ...that the section of Interstate 75 along Alligator Alley in Florida has a number of small bridges to allow wildlife to pass under the freeway?