SDCL § 31-4-243: State Highway 445 from State Highway 79 to Interstate Highway 90.

The state trunk highway system includes the following in Pennington County:

From a point on State Highway 79 in Rapid City at the intersection of West Chicago Street and West Omaha Street, thence northwesterly to Interstate Highway 90 near the southwest corner of section twenty-two, township two north, range seven east.