Interstate 11

Interstate 11
Interstate 11
Purple Heart Highway
	I-11 highlighted in red
Route information
	Maintained by NDOT
Length	54.193 mi (87.215 km)
Existed	August 16, 2017–present
NHS	Entire route
Major junctions
South end	Future I-11 / US 93 at the Arizona state line
	US 95 / SR 173 in Boulder City; ; US 93 Bus. in Henderson; I-215 / SR 564 in Henderson; I-15 / US 93 in Las Vegas; SR 613 / SR 595 in Las Vegas; ; US 95 Bus. / SR 599 in Las Vegas; CC 215 in Las Vegas;
North end	Future I-11 / US 95 / SR 157 in Las Vegas
Location
Country	United States
State	Nevada
Counties	Clark
Highway system
	Interstate Highway System; Main; Auxiliary; Suffixed; Business; Future; Nevada State Highway System; Interstate; US; State; Pre‑1976; Scenic;

Interstate 11 (I-11), officially known as the Purple Heart Highway, is an Interstate Highway that runs for 54.193 miles (87.215 km) on a predominantly northwest–southeast alignment in the U.S. state of Nevada. It runs concurrently with either or both US 93 and US 95 from the Arizona state line (at the Mike O'Callaghan–Pat Tillman Memorial Bridge over the Colorado River within the Lake Mead National Recreation Area outside of the city limits of Boulder City) to Kyle Canyon Road (SR 157) and Sunstone Parkway in Las Vegas.

The freeway is tentatively planned to run from Nogales, Arizona, to Fernley, Nevada, generally following the current routes of I-19, I-10, US 93, and US 95. Planners anticipate upgrading four existing highway segments to carry future I-11: US 93 in Arizona (from Kingman to the Nevada state line and from Kingman to Wickenburg), US 95 in Nevada (from the Las Vegas Valley to Schurz), and either US 95 (via Fallon) or US 95 Alt (via Yerington) from Schurtz to Fernley. The most recent extension came in 2024, when officials replaced I-515 signs in Las Vegas with I-11 signs and added I-11 signs on US 95 north of Downtown Las Vegas, which extended I-11 northward about 30.5 miles (49.1 km). An extension of the Interstate northward along US 95 to Mercury, Nevada, is planned after that. An exact alignment for I-11 south of Wickenburg has yet to be determined; a number of corridor alternatives, however, have been identified for further study and refinement.

The building of I-11 in Arizona as a freeway bypass from I-19 in Sahuarita to US 93 in Wickenburg is controversial. It is currently facing fierce local opposition and backlash from conservation groups and others, citing costs and environmental, traffic, economic, and safety concerns. The project is on hold pending litigation as of 2025.

The numbering of this highway did not initially fit within the usual conventions of the existing Interstate Highway grid, as the whole route was east of I-15. This was because I-17 was already built to the east of the I-11 alignment in Arizona, leaving no odd number between 15 and 17 as would be required by the conventions. I-11's extension along US 95 through Las Vegas and crossing over I-15 remedied this situation since it put a portion of I-11 west of I-15, in line with the national grid numbering conventions.