Two general corridor alternatives have been identified for this bypass section. The two Interstates would be within miles of each other, and a short connection to I-10 is proposed in Marana.Īt or near the interchange with I-8 and I-10 in Casa Grande, the freeway would split from I-10 and travel in a generally westward and then northward direction as a bypass route around the Phoenix metropolitan area. However, corridor alternatives were studied, and the draft tier 1 environmental impact statement selected a recommended corridor alternative that would split from I-19 near Sahuarita and travel around the Tucson Mountains as a Tucson bypass route, then travel parallel to I-10 until Casa Grande. As originally envisioned, the freeway would then join I-10 in Tucson and continue to Casa Grande. The southern terminus of the freeway would be at I-19 Business Loop in Nogales, Arizona, concurrent with that of I-19 proper, or follow State Route 189 (SR 189) from its intersection with I-19 to the Mariposa Port of Entry where it continues south as Federal Highway 15D, creating a Nogales, Arizona– Nogales, Sonora metro area bypass for high-density CANAMEX Corridor traffic. The 80th session of the Nevada Legislature passed a bill designating the entire route of I-11 in the state as the Purple Heart Highway, which went into effect on July 1, 2019. The subsequent plan to extend the Interstate north of Las Vegas to Reno would, if constructed, put that portion of I-11 west of I-15 and thus in line with the national grid numbering conventions. However, I-17 was already built to the east of the I-11 alignment in Arizona, making it impossible to fit this freeway's Interstate number into the national grid and remain within the traditional numbering convention. The proposed numbering of this highway does not currently fit within the usual conventions of the existing Interstate Highway grid as it is east of I-15 and should therefore have a number greater than 15. However, extensions of the corridor to the north toward Reno and to the south toward Nogales have since been approved by the 2015 Fixing America's Surface Transportation Act. This was to provide a Las Vegas– Phoenix freeway link. An exact alignment for I-11 has yet to be determined outside of these sections however, a number of corridor alternatives have been identified for further study and refinement.Īs originally proposed in the 2012 Moving Ahead for Progress in the 21st Century Act, the highway would run only from Casa Grande, Arizona, to Las Vegas. In 2022, officials in Nevada announced that they planned to extend I-11 through the Las Vegas Valley along the existing alignments of I-515/US 93/US 95 to downtown Las Vegas, then running concurrently with US 95 northwest to SR 157. Planners anticipate upgrading two existing highway segments to carry future I-11: US 93 in Arizona from Wickenburg to the Nevada state line on the Mike O'Callaghan–Pat Tillman Memorial Bridge over the Colorado River, and US 95 in Nevada from the Las Vegas Valley to Tonopah. The freeway is tentatively planned to run from Nogales, Arizona, to the vicinity of Reno, Nevada, generally following the current routes of I-19, I-10, US 93, and US 95. Interstate 11 ( I-11) is an Interstate Highway that currently runs for 22.8 miles (36.7 km) on a predominantly northwest–southeast alignment in the US state of Nevada, running concurrently with US Route 93 (US 93) between the Arizona state line and Henderson.
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