Interstate 76 (I-76) is an east–west Interstate Highway in the Western United States that runs from I-70 in Arvada, Colorado – near Denver – to an interchange with I-80 near Big Springs, Nebraska. The highway measures 187.29 miles (301.41 km) long, mostly situated in Colorado but approximately three miles (4.8 km) of which is in Nebraska. Along the route, the highway runs concurrent with US 6, US 85 in the Denver metropolitan area, and US 34 from Wiggins to Fort Morgan. It has no auxiliary Interstates, but it has two business routes that are located in northeastern Colorado. This route is not connected with the other I-76 that spans from Ohio to New Jersey.
Interstate 86 (I-86) is an east–west intrastate Interstate Highway located entirely within the state of Idaho. It runs approximately 63 miles (101 km) from an intersection with I-84 east of Declo in rural Cassia County, to an intersection with I-15 in Chubbuck, just north of Pocatello. The highway is part of the main route from Boise and Twin Falls to Idaho Falls and the upper Snake River region.
U.S. Route 77 (US 77) is a major highway that is part of the United States Numbered Highway System that runs from the Veterans International Bridge in Brownsville to Sioux City, Iowa. In Texas, the road runs south-north for 471.3 miles (758.5 km) from the International border with Mexico to the Oklahoma state line north of Gainesville. The highway is being upgraded to a freeway near Corpus Christi to connect to the freeway part of the highway in Raymondville as part of future I-69. A freeway in Robstown is already signed as part of I-69. From Waco to the Oklahoma state line, US 77 overlaps or runs parallel to I-35/I-35E.
Interstate 15 (I-15) is a part of the Interstate Highway System that runs from San Diego, California, to Sweetgrass, Montana. In Idaho, the Interstate Highway runs exactly 196 miles (315 km) from the Utah state line near Woodruff north to the Montana state line at Monida Pass. I-15 is the primary north–south highway of Eastern Idaho. The Interstate Highway connects Pocatello and Idaho Falls, the fourth and fifth largest cities in Idaho, and the smaller county seats of Malad City, Blackfoot, and Dubois. I-15 connects all of those cities with Salt Lake City to the south and Butte to the north. The Interstate has business loops through McCammon, Inkom, Pocatello, Blackfoot, and Idaho Falls.
In Oklahoma, U.S. Highway 62 (US 62) runs diagonally across the state, from the Texas state line in far southwestern Oklahoma to the Arkansas state line near Fayetteville. US-62 spends a total of 402.48 miles (647.73 km) in the Sooner State. The highway passes through fifteen of Oklahoma's counties. Along the way the route serves two of Oklahoma's largest cities, Lawton and Oklahoma City, as well as many regionally important cities, like Altus, Chickasha, Muskogee, and Tahlequah. Despite this, US-62 has no lettered spur routes like many other U.S. routes in Oklahoma do.
Interstate 15 Business may refer to several business routes of the Interstate Highway System that connects Interstate 15 with the central business district of various cities bypassed by I-15. The business route in each community is considered a unique route. In many cases, these routes are a former section of a U.S. Route or state highway.
Interstate 80 Business may refer to several business routes of the Interstate Highway System that connects Interstate 80 with the central business district of various cities bypassed by I-80. The business route in each community is considered a unique route. In many cases, these routes are a former section of a U.S. Route or state highway.
Business routes of Interstate 5 (I-5) exist in both California and Washington. There are no business routes in Oregon as that state does not assign such designations for any of its Interstate Highways. However, Oregon Route 99 (OR 99) essentially acts as a business route for most of Oregon, along with OR 99W and OR 99E, which also has its own business route in Salem.
U.S. Highway 26 (US-26) runs east–west across south central Idaho for 402.5 miles (647.8 km). US-26 enters the state from Oregon across the Snake River east of Nyssa, Oregon, concurrent with US-20 and exits into Wyoming northwest of Alpine. US-26 runs through the large population centers of Boise and Idaho Falls, as well as the smaller communities of Parma, Notus, Garden City, Shoshone, Richfield, Carey, Arco, Blackfoot, Swan Valley, and Irwin.
There are 13 active business routes of Interstate 70 in Colorado. Interstate 70 (I-70) spans Colorado in an east–west fashion, holding many business loops and spurs along the way, varying from lengths of 0.22 miles (0.35 km) to 27.47 miles (44.21 km), with a total of 55.51 miles (89.33 km). Four other business routes also used to exist within the state.
All of the business loops within Texas are maintained by the Texas Department of Transportation (TxDOT). Interstate 20 (I-20) has 15 business loops in the state, all located in western Texas. Along I-20, TxDOT identifies each business route as Business Interstate 20 followed by an alphabetic suffix. Along Texas Interstates, the alphabetic suffixes on business route names ascend eastward and northward. There are gaps in the alphabetic values to allow for future system expansion. The alphabetic naming suffixes are included as small letters on the bottom of route shields.
Interstate 90 Business may refer to several business routes of the Interstate Highway System that connects Interstate 90 with the central business district of various cities bypassed by I-90. Each business route can be either a business loop or a business spur, depending on whether both ends connect to I-90. The business route in each community is considered a unique route. In many cases, these routes are a former section of a U.S. Route.
Interstate business routes are roads connecting a central or commercial district of a city or town with an Interstate bypass. These roads typically follow along local streets often along a former US or state highway that had been replaced by an Interstate. Interstate business route reassurance markers are signed as either loops or spurs using a green shield shaped sign and numbered like the shield of the parent Interstate Highway.
There are 19 business routes of Interstate 94 (I-94) in the United States. These business routes connect the downtown business districts of cities to the freeway along I-94.
Business routes of Interstate 75 exist in three states. Georgia has three existing Interstate 75 (I-75) business routes and one other that was deleted. Ohio has three business routes for I-75. Nine other I-75 business routes also exist, or have existed, in Michigan, and a 10th has been proposed.
There are five business routes of Interstate 8 (I-8).
Interstate business routes are roads connecting a central or commercial district of a city or town with an Interstate bypass. These roads typically follow along local streets often along a former U.S. Route or state highway that had been replaced by an Interstate. Interstate business route reassurance markers are signed as either loops or spurs using a green shield shaped and numbered like the shield of the parent Interstate highway.
Interstate 15 Business Loop is a 6.0264-mile (9.6986 km) eastern business loop off of I-15 in Box Elder County, Utah, that passes through Elwood and Tremonton. It is partially concurrent with I-84 BL and is the last business route along I-15 in the state.
Interstate 84 Business Loop is a 5.7354-mile (9.2302 km) northern business loop off of I-84 in Box Elder County, Utah, that passes through Tremonton and Elwood. It is partially concurrent with I-15 BL and is the first business route along I-84 in the state.
Business routes of Interstate 70 (I-70) exist in three states, though historically they have existed in five. Utah and Missouri each have three existing I-70 business routes. Business routes in Kansas have either been proposed and rejected or decommissioned. Another 13 I-70 business routes also exist in Colorado and four others have also existed in the past, leading to a grand total of 17 within the Centennial State.
