Interstate 15 in Nevada

Interstate 15
Las Vegas Freeway
I-15 highlighted in red
Route information
Maintained by NDOT
Length123.762 mi (199.176 km)
ExistedJune 29, 1956–present
NHSEntire route
Major junctions
South end I-15 at the California state line
Major intersections
North end I-15 at the Arizona state line
Location
CountryUnited States
StateNevada
CountyClark
Highway system
  • Nevada State Highway System
I-11 SR 28

Interstate 15 (I-15) is an Interstate Highway in the US state of Nevada that begins in Primm, continues through Las Vegas and it crosses the border with Arizona in Mesquite. Within the state, the freeway runs entirely in Clark County. The highway was built along the corridor of the older US Route 91 (US 91) and Arrowhead Trail, eventually replacing both of these roads.

The entire route of I-15 is designated the Las Vegas Freeway.