South Dakota State Route 50 is a east-west highway in Central Union County. This runs from the South Dakota/Iowa State Line, near Westfield, IA, to The Clay/Union County Line. SD St Rt 50 passes through the following highway in Union County. Richland Junction City SD St Rt 50 is not multi-plexed in Union County. SD St Rt 50 intersects the following highways in Union County. South Dakota State Route 11, near Richland. Interstate 29, near Junction City.
A mileage chart on NB I-29. A BGS on NB I-29. A guide marker on the ramp from NB I-29.
