Iowa State Route 27 is the main highway link between Iowa City and Cedar Rapids. Through Johnson County, IA St Rt 27 is on a expressway. IA St Rt 27 passes through the following towns in Johnson County. Iowa City Coralville IA St Rt 27 is multi-plexed in Johnson County. Interstate 380, from I-80 at Iowa City to the Linn/Johnson County Line.
U.S. Rt. 218, from the Washington/Johnson County Line to the Linn/Johnson County Line.
IA St Rt 27 crosses the following highways in Johnson County. Iowa State Route 1, at Iowa City.
NB U.S. Rt. 218/IA 27 near Melrose Ave. at Iowa City. NB U.S. Rt. 218/IA 27 near I-80/380 at Iowa City. NB U.S. Rt. 218/IA 27 at I-80, and the start of I-380. BGS on EB I-80. Overhead sign on EB I-80, near I-380/U.S. Rt. 218/IA St Rt 27. NB I-380/U.S. Rt. 218/IA 27 just north of I-80. Junction sign on Johnson County Highway F28 near North Liberty. SB I-380/U.S. Rt. 218/IA 27 near North Liberty.
