In the route's first two miles (mostly within modern Millcreek Township), a small military logistics facility and St. Mark's Hospital were located on the west side, the latter at the junction with 3900 South.
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In 1957, the highway was extended south by Commission to 1300 East (SR-152), which at that time ran along Highland Drive in Sugar House.
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Further north, SR-181 crossed over Mill Creek and then immediately climbed a steep hill to cross the Jordan and Salt Lake Canal just before intersecting SR-171 (3300 South) and entering Salt Lake City.
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SR-181 continued north to intersect I-80, Parley's Creek (with Parley's Trail, still under construction as of 2012), and 2100 South in Sugar House (next to Sugar House Park, the former Sugar House Prison), where it lost four of its six lanes.
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