Interstate 238 (I-238) is an auxiliary Interstate Highway in the San Francisco Bay Area in the U.S. state of California. It comprises the northernmost 2.126 miles (3.421 km) of Route 238, as defined by the California Streets and Highways Code. Originally signed as State Route 238 (SR 238) until 1983, it connects I-580 in Castro Valley with I-880 in San Leandro.
Interstate 80 (I-80) is an east–west transcontinental freeway in the United States that runs from downtown San Francisco, California, to Teaneck, New Jersey, in the New York City Metropolitan Area. The highway was designated in 1956 as one of the original routes of the Interstate Highway System. Its final segment was opened to traffic in 1986. It is the second-longest Interstate Highway in the United States, following I-90. The Interstate runs through many major cities including Oakland, Sacramento, Reno, Salt Lake City, Omaha, Des Moines, and Toledo, and passes within 10 miles (16 km) of Chicago, Cleveland, and New York City.
Interstate 90 (I-90) is an east–west transcontinental freeway and the longest Interstate Highway in the United States at 3,020.54 miles (4,861.09 km). Its western terminus is in Seattle, at State Route 519 near T-Mobile Park and Lumen Field, and its eastern terminus is in Boston, at Route 1A near Logan International Airport.
Interstate 77 (I-77) is a north–south Interstate Highway in the eastern United States. It traverses diverse terrain, from the mountainous state of West Virginia to the rolling farmlands of North Carolina and Ohio. It largely supplants the old U.S. Route 21 between Cleveland, Ohio, and Columbia, South Carolina, as an important north–south corridor through the middle Appalachians. The southern terminus of Interstate 77 is in Columbia at the junction with Interstate 26. The northern terminus is in Cleveland at the junction with Interstate 90. Other major cities that I-77 connects to include Charlotte; Charleston, West Virginia and Akron, Ohio. The East River Mountain Tunnel, connecting Virginia and West Virginia, is one of only two instances in the United States where a mountain road tunnel crosses a state line. The other is the Cumberland Gap Tunnel, connecting Tennessee and Kentucky. I-77 is a route to the southern United States for those traveling from the Great Lakes region.
Interstate 74 (I-74) is an Interstate Highway in the midwestern and southeastern United States. Its western end is at an interchange with Interstate 80 in Davenport, Iowa ; the eastern end of its Midwest segment is at an interchange with Interstate 75 in Cincinnati, Ohio. The major cities that I-74 connects to includes Davenport, Iowa; Peoria, Illinois; Bloomington, Illinois; Champaign, Illinois; Indianapolis, Indiana; and Cincinnati, Ohio. I-74 also exists as several disconnected sections of highways in North Carolina.
The New York State Thruway is a system of controlled-access highways spanning 569.83 miles (917.05 km) within the U.S. state of New York. It is operated by the New York State Thruway Authority (NYSTA), a New York State public-benefit corporation. The 496.00-mile (798.23 km) mainline is a toll road that extends from the New York City line at Yonkers to the Pennsylvania state line at Ripley by way of Albany, Syracuse, and Buffalo. According to the International Bridge, Tunnel and Turnpike Association, the Thruway is the fifth busiest toll road in the United States.
Interstate 271 (I-271) is an auxiliary interstate highway in the suburbs of Cleveland and Akron in the U.S. state of Ohio. The highway is officially designated the Outerbelt East Freeway, but is rarely referred to by that name by locals, instead simply referring to it as "two-seventy-one."
Interstate 376 (I-376) is a major auxiliary route of the Interstate Highway System in the U.S. state of Pennsylvania, located within the Allegheny Plateau. It runs from I-80 near Sharon south and east to a junction with the Pennsylvania Turnpike in Monroeville, after having crossed the Turnpike at an interchange in Big Beaver. The route serves Pittsburgh, Pennsylvania and its surrounding areas, and is the main access road to Pittsburgh International Airport (PIT). Portions of the route are known as the Beaver Valley Expressway, Southern Expressway, and Airport Parkway. Within Allegheny County, the route runs along the majority of the Penn-Lincoln Parkway, known locally as Parkway West and Parkway East. It is currently the ninth-longest auxiliary Interstate route in the system, and second only to I-476 within Pennsylvania.
Interstate 76 (I-76) is an east–west Interstate Highway in the Eastern United States, running about 434 miles (700 km) from an interchange with I-71 west of Akron, Ohio, east to I-295 in Bellmawr, New Jersey.
Interstate 490 (I-490) is a 2.43-mile (3.91 km) Interstate Highway in Cleveland, Ohio. The western terminus is a junction with I-90 and I-71 on Cleveland's west side. After spanning the Cuyahoga River, I-490 reaches its eastern terminus at a junction with East 55th Street, just east of I-77.
Interstate 480 (I-480) is a 41.77-mile-long (67.22 km) auxiliary Interstate Highway of I-80 in the U.S. state of Ohio that passes through much of the Greater Cleveland area including the southern parts of the city of Cleveland. I-480 is one of 13 auxiliary Interstate Highways in the state. The western terminus of I-480 is an interchange with I-80 and the Ohio Turnpike in North Ridgeville. Starting east through suburban Lorain County, I-480 enters Cuyahoga County, then approaches Cleveland Hopkins International Airport, which serves as the primary airport for Northeast Ohio. After traversing Brooklyn and crossing the Cuyahoga River on the Valley View Bridge, the highway continues east towards the communities of Bedford and Twinsburg toward its eastern terminus at I-80 and the Ohio Turnpike in Streetsboro. On its route, I-480 crosses I-71 and I-77 and is concurrent with I-271 for approximately four miles (6.4 km). In 1998, the Governor of Ohio, George Voinovich, gave I-480 the additional name of the "Senator John Glenn Highway", in honor of the former NASA astronaut and a U.S. Senator from Ohio for 24 years.
Interstate 695 was a 1964-proposed auxiliary Interstate Highway that would have connected Interstate 95 in Southwest Philadelphia, at the Philadelphia International Airport, with I-95 near the Delaware River waterfront near the Benjamin Franklin Bridge. Known as the Cobbs Creek Expressway between SW Philadelphia and Interstate 76 and the Crosstown Expressway between I-76 and the waterfront, I-695 was designed to provide connections to the Philadelphia International Airport and become part of a Center City Loop, with the Crosstown Expressway being the southern section of that loop.
A stack interchange is a particular, free-flowing type of design for interchanges, meaning grade-separated road junctions. It is referred to as a directional interchange in the American Association of State Highway and Transportation Officials Policy on Geometric Design of Highways and Streets.
State Route 57 is a north–south state highway in northeast Ohio. SR 57 runs from U.S. Route 30 (US 30) in Riceland to US 6 in Lorain, a distance of 61.2 miles (98.5 km).
Interstate 80 (I-80) in the U.S. state of Ohio runs across the northern part of the state. Most of the route is part of the Ohio Turnpike; only an 18.78-mile (30.22 km) stretch is not part of the toll road. That stretch of road is the feeder route to the Keystone Shortway, a shortcut through northern Pennsylvania that provides access to New York City.
The Nebraska State Highway System consists of all the state highways in Nebraska maintained by the Nebraska Department of Roads. This includes federally designated Interstates and US Highways as well as state highways, links and spurs. The system comprises 9,942 miles (16,000 km) of state highways in all 93 counties. Highways within the system range in scale and quality from 10-lane urban freeways, such as I-80 around Omaha, to standard two-lane rural undivided highways as well as 39 miles (63 km) of state highways that remain unpaved such as N-67 north of Dunbar. Surrounding landscapes along the highway system range from the urban areas in Omaha and Lincoln to scenic journeys through uninhabited grasslands in the Nebraska Sandhills.
Interstate 90 (I-90) runs east–west across the northern tier of the U.S. state of Ohio. Much of it is along the Ohio Turnpike, but sections outside the turnpike pass through Cleveland and northeast into Pennsylvania.
Interstate 90 (I-90) is a part of the Interstate Highway System that runs from Seattle, Washington, to Boston, Massachusetts. In the U.S. state of New York, I-90 extends 385.88 miles (621.01 km) from the Pennsylvania state line at Ripley to the Massachusetts state line at Canaan, and is the second-longest highway in the state after NY 17. Although most of the route is part of the tolled New York State Thruway, two non-tolled sections exist along I-90. Within New York, I-90 has a complete set of auxiliary Interstates, which means that there are interstates numbered I-190 through I-990 in the state, with no gaps in between. For most of its length in New York, I-90 runs parallel to the former Erie Canal route, New York State Route 5 (NY 5), U.S. Route 20 (US 20) and the CSX railroad mainline that traverses the state.
I-80 / I-90 / Ohio Turnpike near Milan 
I-90 / Ohio Turnpike from near Milan to Elyria 
I-490 The entire length of I-490
I-290 A short portion of unbuilt I-290
I-80N A section of unbuilt highway connecting to Interstate 480 
I-480 from Maple Heights to I-480's east terminus
I-76 / I-80 Interstate 80N ended at a junction with the mainline route of I-80 around Ravenna. The road at which I-80N ended is now Interstate 76.
