U.S. Route 91 or U.S. Highway 91 (US-91) is a 172.663-mile-long (277.874 km) north–south United States highway running from Brigham City, Utah, to Idaho Falls, Idaho, in the U.S. states of Idaho and Utah. Despite the "1" as the last digit in the number, US-91 is no longer a cross-country artery, as it has mostly been replaced by Interstate 15. The highway currently serves to connect the communities of the Cache Valley to I-15 and beyond. Prior to the mid-1970s, US 91 was an international commerce route from Long Beach, California, to the Canada–US border north of Sweetgrass, Montana. US 91 was routed on the main streets of most of the communities it served, including Las Vegas Boulevard in Las Vegas and State Street in Salt Lake City. From Los Angeles to Salt Lake, the route was built along the corridor of the Arrowhead Trail. A portion of the highway's former route in California is currently State Route 91.
Interstate 515 (I-515) is a 14.444-mile-long (23.245 km) spur route of I-15 in the US state of Nevada that runs from the junction of I-11, I-215, and State Route 564 (SR 564) at the Spaghetti Bowl Interchange in Henderson to the junction of I-15, U.S. Route 93 (US 93), and US 95 at the Las Vegas Spaghetti Bowl Interchange in Downtown Las Vegas. The freeway connects traffic headed from Boulder City and Henderson to Downtown Las Vegas via a direct, high-speed route, and it runs concurrently with both US 93 and US 95 along its entire length.
U.S. Route 466 was an east–west United States highway. Though it reached a length of around 500 miles (805 km), the route was co-signed with other US routes for much of its length. When California deleted most of its U.S. Highways in the mid-1960s, including US 466 in 1964, there was no longer a need for the designation.
The Las Vegas Beltway is a 50-mile (80 km) beltway route circling three-quarters of the Las Vegas Valley in southern Nevada. The Las Vegas Beltway carries two numerical designations. Approximately 12.8 miles (20.6 km) of the highway, from its southern terminus at Interstate 11 (I-11) / I-515 / U.S. Route 93 (US 93) / US 95 in Henderson west and northwest to I-15, is signed as Interstate 215 (I-215) and maintained by the Nevada Department of Transportation. Clark County Route 215 (CC 215) composes the remaining 37.2 miles (59.9 km) of this semi-circumferential highway, with the county's Department of Public Works responsible for all construction and maintenance.
State Route 157, also known as Kyle Canyon Road, is a U.S. state highway in Clark County, Nevada. The highway connects the Las Vegas area to the recreational areas of Mount Charleston in the Spring Mountains.
State Route 159 is a 31.204-mile (50.218 km) east–west highway in Clark County, Nevada, United States, providing access to Red Rock Canyon and serving as a thoroughfare in the Las Vegas metropolitan area. A portion of the west end of the route is designated a Nevada Scenic Byway.
State Route 147 is a state highway serving the Las Vegas Valley in southern Nevada. It is signed as Lake Mead Boulevard and runs from Interstate 15 (I-15) and U.S. Route 93 in North Las Vegas east to the border of the Lake Mead National Recreation Area. It is not to be confused with Lake Mead Parkway, which also goes to Lake Mead but mainly runs in southern Las Vegas Valley and carries the designation of State Route 564.
Rainbow Boulevard is a north–south section line arterial in the Las Vegas Valley. A portion of the road is designated State Route 595.
Jones Boulevard is a section line arterial that runs north and south through the Las Vegas Valley. A 4.088-mile (6.579 km) portion of the road is designated State Route 596 (SR 596).
State Route 599 is a 7.049-mile (11.344 km) state highway in Clark County, Nevada. The route follows Rancho Drive, a major arterial connecting downtown Las Vegas to the northwest part of the city. Much of SR 599 was previously designated as U.S. Route 95 prior to completion of the Las Vegas Expressway. The route is also designated as U.S. Route 95 Business.
State Route 610 is a state highway in Clark County, Nevada. It comprises a small portion of Lamb Boulevard in the northeastern Las Vegas Valley.
State Route 579 is a state highway in Clark County, Nevada. It follows a portion of Bonanza Road near the downtown area of Las Vegas. The route encompasses a small portion of former State Route 5 and the entirety of former State Route 5A, and also carried U.S. Route 95 before it was relocated to its present freeway alignment.
State Route 582 (SR 582) is a major 15.392-mile-long (24.771 km) highway in the Las Vegas Valley. The highway is the former route of U.S. Route 93 (US 93) and US 95 before they were moved to the current freeway alignment shared with Interstate 11 (I-11) and Interstate 515 (I-515). Known primarily as Boulder Highway, the route connects Downtown Las Vegas with Henderson and Boulder City to the southeast.
State Route 564 is an east–west highway in Clark County, Nevada, in the southeast portion of the Las Vegas Valley. The route travels through the city of Henderson, traveling from the junction of Interstate 215 (I-215) and I-11 south and I-515 north, also part of U.S. Route 93 and US 95, to Lake Las Vegas, ending near Lake Mead. The route was designated in 2002, replacing a portion of SR 146.
Interstate 15 (I-15) is an Interstate Highway in the U.S. 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 U.S. Route 91 (US 91) and Arrowhead Trail, eventually replacing both of these roads.
U.S. Route 95 is a major U.S. highway traversing the U.S. state of Nevada from north to south directly through Las Vegas and providing connections to both Carson City and Reno. US 95 is cosigned with Interstate 80 for 95 miles (153 km) between a junction in Trinity and Winnemucca before heading north into Oregon at McDermitt. At 646 miles, it is the longest highway in Nevada.
In the U.S. state of Nevada, U.S. Route 93 is a major United States Numbered Highway traversing the eastern edge of the state. The highway connects the Las Vegas area to the Great Basin National Park, and provides further connections to Ely and Wells. US 93 also provides the majority of the most direct connection from the major metropolitan areas of Las Vegas and Phoenix to the Boise, Idaho metropolitan area.
Several special routes of U.S. Route 95 exist. In order from south to north they are as follows.
US 93 / US 95 / US 466 in Las Vegas 
