Just north of the interchange is Army Post Road, a former alignment of Iowa Highway 5.

Iowa 28 crosses the Raccoon River just south of Railroad Avenue in West Des Moines.

The dual designation of street names is particularly confusing to drivers and residents alike.

Iowa 28 continues north along the Urbandale / Des Moines city limit line before ending at exit 131 of Interstate 35 / Interstate 80 at the Johnston / Urbandale city limit line.

In 1990 it was extended northward its current northern end when Iowa Highway 401 was turned over to local jurisdictions.