Iowa State Route 100 is a main east-west highway in the norther portion of the Cedar Rapids Metro-Area. IA St Rt 100 passes through the following towns in Linn County. Marion
Cedar Rapids
IA St Rt 100 is not multi-plexed in Linn County. IA St Rt 100 intersects the following highways in Linn County. U.S. Rt. 151, at Marion. Iowa State Route 13, at Marion.
WB IA St Rt 100 just west of BUSN. U.S. Rt. 151. EB IS St Rt 100 west of I-380/IA St Rt 27. A guide marker on EB IA St Rt 100. WB IA St Rt 100 at I-380/IA 27. A BGS at the I-380/IA St Rt 27/100 interchange. A BGS on SB I-380/IA St Rt 27. A BGS on NB I-380/IA St Rt 27.