State Route 173 (SR 173) is a state highway in Clark County, Nevada. The route provides access to downtown Boulder City from U.S. Route 95 (US 95) to the south. The route was originally part of US 95 until the highway was realigned following the completion of Interstate 11 (I-11) around Boulder City.
The entire route of SR 173 is also part of the Veterans Memorial Highway.
State Route 173 begins at an interchange with I-11/US 93/US 95 approximately southwest of downtown Boulder City. Proceeding northward, the highway ends at an interchange with US 93 Business.
SR 173 was originally part of US 95. Upon the completion of Phase 1 on May 23, 2018, US 95 was rerouted onto the Boulder City Bypass, concurrent with I-11. The old route was redesignated State Route 173 while retaining the name of "Veterans Memorial Highway".