Portal:California roads

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The California Roads Portal

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The highway system of California is a network of roads owned and maintained by the state of California through the California Department of Transportation (Caltrans). Most of these are numbered in a statewide system, and are known as State Route X (abbreviated SR X). United States Numbered Highways are labeled US X, and Interstate Highways are Interstate X, though Caltrans typically uses State Route X for all classes.

Interstate Highways and U.S. Highways are assigned at the national level. Interstate Highways are numbered in a grid—even-numbered routes are east–west routes (with the lowest numbers along Mexico and the Gulf of Mexico), and odd-numbered routes are north–south routes (with the lowest numbers along the Pacific Ocean). U.S. Highways are also numbered in a grid—even numbered for east–west routes (with the lowest numbers along Canada) and odd numbered for north–south routes (with the lowest numbers along the Atlantic Ocean). There are 21 Interstate Highways in California, ranging from Interstate 5 to Interstate 980. There are seven current U.S. Highways including U.S. Route 6 and U.S. Route 395.

California State Routes are managed by Caltrans and designated by the California State Legislature. The state route's signs are in the shape of a miner's spade to honor the California Gold Rush. Each state highway in the U.S. state of California is assigned a Route (officially State Highway Route) number in the Streets and Highways Code (Sections 300-635). Since July 1 of 1964, the majority of legislative route numbers, those defined in the Streets and Highways Code, match the sign route numbers. On the other hand, some short routes are instead signed as parts of other routes — for instance, State Route 112 and State Route 260 are signed as part of the longer State Route 61, and State Route 51 is part of Interstate 80 Business. California County Routes are marked with the usual County route shield, and are assigned a letter for where they are located. For instance, county highways assigned "S" are located in Southern California, ones assigned "J" are found in Central California, and those assigned "A" are located in Northern California.

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State Route 76 (SR 76) is a 52.63-mile-long (84.70 km) state highway in the U.S. state of California. It is a frequently used east–west route in the North County region of San Diego County that begins in Oceanside near Interstate 5 (I-5) and continues east. The highway serves as a major route through the region, continuing east into the community of Bonsall while providing access to Fallbrook. East of the junction with I-15, SR 76 goes through Pala and Pauma Valley before terminating at SR 79. A route along the corridor has existed since the early 20th century, as has the bridge over the San Luis Rey River near Bonsall. The route was added to the state highway system in 1933, and was officially designated as SR 76 in the 1964 state highway renumbering, though the route was known as SR 76 before then. The section of the highway through Oceanside and Bonsall is mostly a four-lane expressway; east of Bonsall, SR 76 is mostly a two-lane highway. Originally, the entire highway was two lanes wide; west of Bonsall, the route was widened in stages, after decades of funding shortages, planning, and litigation. Caltrans plans to expand the entire length of the highway west of I-15 to an expressway.

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Interstate 580 (California)

Credit: Rschen7754

Interstate 580 on the Richmond–San Rafael Bridge

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Did you know...

...that, despite being added to California's state highway system in 1933, the portion of State Route 190 over the Sierra Nevada remains unconstructed?

...that the easternmost part of State Route 20 follows a branch of the historic California Trail, parts of which have been preserved as a National Recreation Trail?

...that U.S. Route 199 is numbered as a spur of U.S. Route 99, which no longer exists?

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Highways • United States • California • U.S. Roads • U.S. Streets • California State Routes

Related projects: Los Angeles • San Diego • Southern California • Santa Barbara County • Inland Empire • San Francisco Bay Area

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