Utah State Route 173
| 5400 South/5300 South | ||||
| Route information | ||||
| Maintained by UDOT | ||||
| Length | 9.939 mi (15.995 km) | |||
| Existed | 1965–present | |||
| Major junctions | ||||
| West end | SR-111 in West Valley City | |||
| SR-172 in West Valley City SR-154 in Taylorsville SR-68 in Taylorsville I-15 in Murray | ||||
| East end | US 89 in Murray | |||
| Location | ||||
| Country | United States | |||
| State | Utah | |||
| Highway system | ||||
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State Route 173 is a major east–west thoroughfare completely within Salt Lake County in northern Utah. From its western terminus at SR-111 it passes through the growing west side of Salt Lake County, eventually reaching US-89 in Murray.