Interstate 15 in Nevada
| Las Vegas Freeway | ||||
| I-15 highlighted in red | ||||
| Route information | ||||
| Maintained by NDOT | ||||
| Length | 123.762 mi (199.176 km) | |||
| Existed | June 29, 1956–present | |||
| NHS | Entire route | |||
| Major junctions | ||||
| South end | I-15 at the California state line | |||
| 
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| North end | I-15 at the Arizona state line | |||
| Location | ||||
| Country | United States | |||
| State | Nevada | |||
| County | Clark | |||
| Highway system | ||||
| 
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| 
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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.