The first phase of Interstate-11 involves traffic improvements to U.S.93 in the Boulder City, Nevada area. The proposed project limits are between a western boundary at the end of Interstate 515 on U.S. 93/95 in Henderson near the Foothills grade separation approximately one mile north of the Railroad Pass Hotel and Casino and an eastern boundary on U.S. 93, approximately 4.7 miles west of downtown Boulder City.
The project will include the design and construction of a four-lane access-controlled freeway with a new interchange at US-95 and a reconfigured interchange at the US-93/SR-172 Hoover Dam Exit. Major project elements will include extensive rock excavation, nine bridges, a scenic view parking area overlooking Lake Mead, drainage culverts and environmental mitigation. A portion of the project will be constructed through a ridge of the El Dorado Mountains.