text: missouri route 108 route 108 is a short highway in the bootheel of southeastern missouri . its eastern terminus is the arkansas state line at arkansas highway 77 , about six miles ( 10 km ) south of arbyrd , the only town on the route . its western terminus is at u.s. route 412 ( us 412 ) about two miles ( 3 km ) north of arbyrd . although signed as an east – west route , the route follows mostly north – south roadways . the route was designated in 1930 , and was extended east in 1972 . route description route 108 begins at the arkansas state line in , dunklin county , where the road continues south into that state as highway 77 . from the arkansas - missouri state line , the route heads north as a two - lane undivided road , passing a few homes and businesses in before running through farmland . the road continues through rural areas to the southern edge of arbyrd , where it reaches an intersection with route 164 . at this point , route 108 turns east to form a concurrency with route 164 , with the two routes passing through more fields before running to the south of industry . route 108 splits from route 164 by heading north on east frisco street , passing homes and a few businesses . route 108 leaves arbyrd and heads through more agricultural areas before reaching its eastern terminus at us 412 . in 2012 , missouri department of transportation ( modot ) calculated 1 , 057 vehicles traveling north of the state line . this is expressed in terms of annual average daily traffic ( aadt ) , a measure of traffic volume for any average day of the year . history route 108 was designated in 1930 , connecting from the state line to route 25 . the road was already paved in gravel . three years later , route y was designated , and it connected from route 108 in to caruth . in 1936 , route 108 was repaved in concrete . by 1953 , route 25 was rerouted into arbyrd , becoming the terminus of routes 108 and y there . route 164 was designated in 1956 , replacing a large section of route y from route 108 to route n. fifteen years later , route 25 was rerouted to the west , and the old alignment , from route 246 , through arbyrd , became part of route 108 . around 1983 , us 412 was designated , replacing route 25 from kennett to the state line . major intersections the entire route is in dunklin county .