U.S. Route 91 or U.S. Highway 91 is a 172.7-mile-long (277.9 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 Despite the "1" as the last digit in the number, US 91 is no longer a cross-country artery, as it has mostly been replaced by Interstate 15.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.
State Route 68 (SR-68) is a state highway in the U.S. state of Utah. It is a major thoroughfare throughout the Wasatch Front as it runs north–south for 70.8 miles (113.9 km), linking US-6 near Elberta to US-89 in Woods Cross. The route intersects several major freeways and highways in the Salt Lake City metropolitan area including I-215, I-80, and I-15. The route is more commonly referred to as Redwood Road, after the street it is routed along throughout Salt Lake County. The highway is also routed for a short distance along 500 South and 200 West in Bountiful and Camp Williams Road in Utah County. The route is a surface street for its entire length.
State Route 265 is a west–east thoroughfare completely within Utah County in northern Utah that cuts through Orem and Provo. Utah Valley University and Brigham Young University are in close proximity to SR-265. The entirety of the route is named University Parkway.
Interstate 84 (I-84) is a part of the Interstate Highway System that links Portland, Oregon, to I-80 near Echo, Utah. The 117.38-mile-long (188.90 km) segment in the US state of Utah is the shortest of any of the three states the western I-84 passes through and contains the eastern terminus of the highway. I-84 enters Box Elder County near Snowville before becoming concurrent with I-15 in Tremonton. The concurrent highways travel south through Brigham City and Ogden and separate near Ogden-Hinckley Airport. Turing east along the Davis County border, I-84 intersects US Route 89 (US-89) and enters Weber Canyon as well as Morgan County. While in Morgan County, I-84 passes the Devil's Gate-Weber Hydroelectric Power Plant and Devil's Slide rock formation. Past Morgan, the highway crosses into Summit County, past the Thousand Mile Tree before reaching its eastern terminus at I-80 near Echo.
State Route 42 (SR-42) is a 7.390-mile-long (11.893 km) state highway completely within Box Elder County in the U.S. state of Utah. It connects SR-30 to former SH-81 at the Idaho state line. The highway was formerly part of U.S. Route 30S (US-30S), prior to being bypassed and replaced with what is now signed as Interstate 84 (I-84).
State Route 13 (SR-13) is a state highway in northern Utah, running 32.841 miles (52.852 km) parallel to I-15 in Box Elder County from Brigham City to Riverside. Most of SR-13 is a former routing of U.S. Route 191.
State Route 271 (SR-271) is a state highway within Iron County in the southwestern portion of the US state of Utah that connects Parowan and SR-274 to Paragonah and I-15. The route spans 5.65 miles (9.09 km) south–north and roughly parallels I-15. State Route 271 was designated in 1978.
State Route 118 (SR-118) is a state highway in the US state of Utah linking I-70/US-89 and Joseph to Richfield. The route is the main street for Joseph, Monroe and Richfield and spans 24.14 miles (38.85 km). The highway was established 1931, initially connecting Joseph to Monroe and Central Valley. Eventually, maintenance of the road was extended north to near Salina.
State Route 54 is a short highway completely within the town of Mona in Juab County in northern Utah that connects Main Street to I-15 in a span of one mile (1.6 km).
State Route 259 (SH-259) is a short state highway within Sigurd in Sevier County, Utah connecting Interstate 70 (I-70)/U.S. Route 89 (US-89) to SR-24.
U.S. Route 89 in the U.S. state of Utah is a north-south United States Highway spanning more than 502 miles (807.891 km) through the central part of the state, making it the longest road in Utah. Between Provo and Brigham City, US-89 serves as a local road, paralleling Interstate 15, but the portions from Arizona north to Provo and Brigham City northeast to Wyoming serve separate corridors. The former provides access to several national parks and Arizona, and the latter connects I-15 with Logan, the state's only Metropolitan Statistical Area not on the Interstate.
State Route 30 (SR-30) is a state highway in the U.S. state of Utah. It is the only highway signed as a Utah state route to traverse the entire width of the state. Legislatively the highway exists as 3 separate segments. With implied connections via Interstate 84 and U.S. Route 89, the highway is drivable as a continuous route from Nevada to Wyoming. The western segment is a historic corridor paralleling the pre-Lucin Cutoff routing of the First transcontinental railroad. A portion of the eastern segment has been designated the Bear Lake Scenic Byway as part of the Utah Scenic Byways program. The route was created in 1966 by combining several state highways into a single designation.
State Route 48 (SR-48) is a highway completely within Salt Lake County in northern Utah that connects Bangerter Highway with I-15 and US-89. The route is laid on portions of 7800 South, Redwood Road, and 7200 South. When the route was formed in 1927, it passed through the center of Midvale on Center Street. However, it was moved north onto 7200 South in 1965 to serve an exit of I-15.
State Route 210 (SR-210) is a state route in the U.S. state of Utah that is the access road for Little Cottonwood Canyon and the ski resorts of Alta and Snowbird. The 13.62 mi (21.92 km) highway straddles the southeastern edge of the Salt Lake Valley before it enters the mouth of Little Cottonwood Canyon.
State Route 252 (SR-252) is a state highway that runs more than six miles in Cache County in the northern Utah city of Logan. The route goes from its southern terminus of US-89/US-91 and heads on a northerly path through the west side of Logan. The route's northern terminus is at US-91.
State Route 119 (SR-119) is a 8.753-mile-long (14.087 km) state highway in the U.S. state of Utah, connecting SR-119 in Richfield to SR-24 near Glenwood.
State Route 60 (SR-60) is a 7.496-mile-long (12.064 km) state highway in the U.S. state of Utah, serving local traffic in the Ogden area. It parallels Interstate 84 (I-84) from SR-26 in Riverdale to U.S. Route 89 (US-89) in South Weber, and was part of the first state highway into Weber Canyon.
State Route 82 (SR-82) is a state highway in the U.S. state of Utah. It is a short connector road, only 3.178 miles (5.114 km) long, that connects the towns of Tremonton and Garland in Box Elder County.
State Route 231 (SR-231) is the shortest state highway in the U.S. state of Utah. It serves as a connection between U.S. Route 89 (US-89) and SR-31 in Fairview.
SR-13 in Brigham City 
US 89 / US 91 in Brigham City
