How come so many routes keep numbers when crossing state boundaries?
Most state numbered roads change when they cross a state line. However, in quite a few instances, the road keeps the same number when crossing states. This is usually done to make it easy to track a route from state to state. This also occurs occasionally between countries, such as the US and Canada. See http://web.archive.org/web/20010208165728/members.nbci.com/jpkirby/multi.html (no-longer-extant webpage at Archive.org). . –> Sep 8, 2004 8.2 Q: What is the shortest numbered highway? A: KY-2920 near Lawrenceburg in Anderson County is recorded as 0.007 mile (equal to 36.96 feet – see http://www.kytc.state.ky.us/planning/sprslistings/sprs.htm ). VT-26 in Lemington, formerly touted as the shortest, is officially recorded as a rounded 0.01 mile, equal to 52.8 feet (photos at http://www.roadgeek.org/waste_of_film/page5.html ), but is actually 69 feet long, making it longer than both KY-2920 and KY-2250 in Louisville (0.009 mile, equivalent to 47.52 feet). Oct 19, 2006 8.3 Q: What is the h
Most state numbered roads change when they cross a state line. However, in quite a few instances, the road keeps the same number when crossing states. This is usually done to make it easy to track a route from state to state. This also occurs occasionally between countries, such as the US and Canada. See http://web.archive.org/web/20010208165728/members.nbci.com/jpkirby/multi.html (no-longer-extant webpage at Archive.org). . –> Sep 8, 2004 8.2 Q: What is the shortest numbered highway? A: KY-2920 near Lawrenceburg in Anderson County is recorded as 0.007 mile (equal to 36.96 feet – see http://www.kytc.state.ky.us/planning/sprslistings/sprs.htm ). VT-26 in Lemington, formerly touted as the shortest, is officially recorded as a rounded 0.01 mile, equal to 52.8 feet (photos at http://www.roadgeek.org/waste_of_film/page5.html ), but is actually 69 feet long, making it longer than both KY-2920 and KY-2250 in Louisville (0.009 mile, equivalent to 47.52 feet). Oct 19, 2006 8.3 Q: What is the h
