Interstate 15 South - Las Vegas to California

Interstate 15 heads south from the systems interchange (Exit 34) with I-215/CC-215 (Bruce Woodbury Beltway) into southern reaches of the Las Vegas metro area.
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03/09/19

State Route 160 (Blue Diamond Road) loops along an 80.297 mile course west and north from I-15 at Exit 33 to Pahrump and U.S. 95 in Nye County.
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While SR 159 branches north from Blue Diamond Road to Red Rock Canyon National Conservation Area, SR 372 angles westward from Pahrump and SR 160 to Death Valley National Park in California.
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SR 160 initially follows Blue Diamond Road from Las Vegas Boulevard southwest through the exchange with I-15 (Exit 33) into Enterprise. Beyond the metro area the state route winds through the Sandstone Bluffs en route to Pahrump.
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This shield beyond SR 160 (Exit 33) lasted along southbound for only two years, between 2013 and 2015.
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03/09/19

Silverado Ranch Boulevard (Exit 31) ties into Interstate 15 next.
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03/09/19

Extending south from I-515/U.S. 93-95 near downtown, the express lanes along I-15 end one half mile ahead at the diamond interchange with Silverado Ranch Boulevard.
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Cactus Avenue (Exit 30) is the first of three interchanges joining Interstate 15 with the Southern Highlands neighborhood of Las Vegas.
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Interstate 15 meets Starr Avenue (Exit 29) 0.75 miles ahead followed by SR 146 (St. Rose Parkway) at Exit 27.
03/09/19

The addition of the diamond interchange (Exit 29) with Starr Avenue removed this reassurance marker along I-15 south.
03/31/15

Exit 29 (Starr Avenue) opened September 2019, providing more connectivity between I-15 and the southern suburbs of Las Vegas.
03/09/19

Interstate 15 advances south from Starr Avenue (Exit 29) to a single point urban interchange (SPUI) with SR 146 (St. Rose Parkway)/South Highlands Parkway next.
08/13/16

SR 146 angles 6.622 miles northeast along St. Rose Parkway to I-215 (Bruce Woodbury Beltway) opposite S Pecos Road. The state route previously extended further east to Henderson but was supplanted by the beltway.
03/09/19

Southern Highlands Parkway ties into the west side of the SPUI (Exit 27) with Interstate 15.
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03/31/15

Interstate 15 leaves the Las Vegas metro area beyond SR 146/Southern Highlands Parkway (Exit 27).
03/31/15

I-15 beelines 27 miles southwest to Primm at the California state line.
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08/13/16

Interstate 15 remains a six lane freeway to Primm.
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The State Line Hills rise to the south as Interstate 15 advances toward California.
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State Route 161 travels 7.277 miles northwest to Goodsprings one mile ahead.
03/31/15

The town of Jean consists of a post office, truck stop, correctional institute, and a shuttered hotel and casino. Prior to March 2020, Terrible's Hotel and Casino occupied the structure. As of January 2024, an industrial park is slated to occupy the land of the former hotel and casino.
08/13/16

Named after prospector and cattleman Joseph Good, Goodsprings began as a mining outpost in 1868. The mining settlement peaked by the start of WWI.
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03/31/15

The community of Sandy Valley is located 19.7 miles to the west of the diamond interchange (Exit 12) along the California border.
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The ensuing 11 mile exit less stretch leads Interstate 15 south to Primm.
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08/13/16

Casino hotels line either side of Interstate 15 at the diamond interchange (Exit 1) with E Primm Boulevard one mile ahead.
08/13/16

Known as State Line until 1996, Primm got its name from the original land owners who occupied 400 acres surrounding the interchange. The first casino opened in 1970.
08/26/14

Interstate 15 reduces to four overall lanes as the freeway enters California from Primm en route to Barstow. The reduction in travel lanes southbound typically results in weekend backups from those traveling between Las Vegas and the Golden State.
08/13/16