SR 312 heads east from White Oak Avenue next to the Bishop Noll Institute and enters a mostly commercial area, having an intersection with U.S. Route 20 (US 20).

The highway crosses over the Indiana Ship Canal and passes between industrial properties.

Chicago Avenue continues east of US 12 and SR 912 as a short street, passing through more industrial properties before dead-ending at a railroad.

[5] The NHS is a network of highways that are identified as being most important for the economy, mobility and defense of the nation.

This measurement is a calculation of the traffic level along a segment of roadway for any average day of the year.