Route 238, consisting of State Route 238 (SR 238) and Interstate 238 (I-238), is a mostly north–south state and auxiliary Interstate highway in the San...

Oregon Route 238 is an Oregon state highway which runs between the cities of Grants Pass, Oregon and Medford, Oregon, and through the historic town of...

junction with State Route 238 and State Route 185. It has interchanges with three freeways: Interstate 280 (the Junipero Serra Freeway), U.S. Route 101 (the...

crosses under Interstate 238 in the community of Cherryland. SR 185 then meets the east end of State Route 112 (signed as State Route 61) in downtown...

Interstate 680 (I-680) is a north–south auxiliary Interstate Highway in Northern California. It curves around the eastern cities of the San Francisco...

Interstate 580 (I-580) is an approximately 76-mile-long (122 km) east–west auxiliary Interstate Highway in Northern California. The heavily traveled spur...

Golden State Freeway, and West Side Freeway. The entirety of Interstate 5 in California is defined in the California Streets and Highways Code as Route 5,...

following state highways in the U.S. state of California are entirely or partially unconstructed; in other words, their routings have been defined by state law...

Interstate 780 (I-780) is an east–west auxiliary Interstate Highway in the San Francisco Bay Area of Northern California. It runs from Curtola Parkway...

238 Interstate 238 Arizona State Route 238 Arkansas Highway 238 California State Route 238 Georgia State Route 238 (former) Indiana State Road 238 (former)...

Interstate 880 (I-880) is a north–south auxiliary Interstate Highway in the San Francisco Bay Area of Northern California. It runs from I-280 and State...

Interstate 980 (I-980) is a short 2.03-mile (3.27 km) auxiliary Interstate Highway entirely within Oakland in Northern California, connecting I-580 and...

(part) State Route 229 State Route 230 State Route 232 State Route 233 State Route 236 State Route 237 Interstate 238 and State Route 238 State Route 241...

defense, and mobility by the Federal Highway Administration (FHWA). Currently, I-80 Bus is the only Interstate business route in California to exist as...

Interstate 80 (I-80) is a transcontinental Interstate Highway in the United States, stretching from San Francisco, California, to Teaneck, New Jersey...

State Route 84 (SR 84) is a state highway in the U.S. state of California that consists of two unconnected segments, one in the San Francisco Bay Area...

and the Ortega Highway, is a state highway in the U.S. state of California. It runs from Interstate 5 in San Juan Capistrano in Orange County to the city...

Interstate 380 (I-380) is a short 3.3-mile (5.3 km) east–west auxiliary Interstate Highway in the San Francisco Bay Area of Northern California, connecting...

defined California State Route partially overlaps with a federally defined Interstate Highway, while the remaining portion is signed as a state highway...

Interstate 80 (I-80) is an east–west transcontinental freeway that crosses the United States from San Francisco, California, to Teaneck, New Jersey, in...

SR 371 at Aguanga Interstate 80 I-280 in San Francisco to SR 61 in Oakland SR 20 near Emigrant Gap to Nevada State Route 84 SR 238 in Fremont to I-680...

U.S. Route 199 (US 199) is a U.S. Highway in the states of California and Oregon. The highway was established in 1926 as a spur of US 99, which has since...

State Route 480 (SR 480) was a state highway in San Francisco, California, United States, consisting of the elevated double-decker Embarcadero Freeway...

San Francisco Bay Area of Northern California. It runs from I-680 and US Route 101 (US 101) in San Jose to King and 5th streets in San Francisco, running...

State Route 237 (SR 237) is a state highway in the U.S. state of California that runs from El Camino Real (SR 82) in Mountain View to Interstate 680 in...

California residents . The entirety of Interstate 10 in California is defined in the California Streets and Highways Code as Route 10. The California...

highway and Interstate Highway in the U.S. state of California, connecting San Bernardino, Riverside, and San Diego Counties. The route consists of the...

State Route 9 (SR 9) is a rural and mountainous state highway in the U.S. state of California that travels 35 miles (56 km) from SR 1 in Santa Cruz to...

680, and State Route 238. State Route 10 was replaced by State Route 42 several years before the 1964 renumbering, due to the closeness of Interstate 10...

I-695). Because longer Interstates may have many such supplemental routes, the numbers can repeat from state to state along their route, but they will not...