From its southern terminus at the northbound off-ramp of the interchange on I-15 at exit 22 in Leeds, SR-228 heads northeast, roughly paralleling I-15 along Main Street, until it turns northwest onto Silver Reef Road.

After passing under I-15 it reaches it northern terminus at the southbound off-ramp of the interchange with I-15 at exit 23.

The spur begins at the southbound on-ramp at exit 22 and heads southeast along Cemetery Road until it reaches its terminus at South Main Street (SR-228).

Originally, the route began with the current spur (Cemetery Road) and then headed northeast along Main Street for the remainder of the current route (including the portion on Silver Reef Road), but did not include any portion of South Main Street south of Cemetery Road.

[2] However, sometime prior to 1998, the official designation had been amended to reflect the current route.