U.S. Federal Route 20 runs east-west across La Porte County. This is a main east-west link across the county. It also provides a free alternative to the Indiana East-West Toll Road (Interstate 80/90). U.S. Rt. 20 passes through the following towns in La Porte County. Michigan City
Springville U.S. Rt. 20 is multi-plexed in La Porte County. U.S. Rt. 35, at Michigan City.
U.S. Rt. 20 crosses the following highways in La Porte County. U.S. Rt. 421, at Michigan City.
A BGS on SB U.S. Rt. 35. A BGS on WB U.S. Rt. 20/NB U.S. Rt. 35. WB U.S. Rt. 20/NB U.S. Rt. 35 west of I-94. BGS on EB I-94. A set of guide markers on the ramp from WB I-80/90/IN E-W Toll Rd. to U.S. Rt. 421. EB U.S. Rt. 20 near Rolling Prairie.