Interstate 10, Transcontinental highway through southern United States.
Interstate 10 is a transcontinental highway across the southern United States, stretching nearly 4000 kilometers from California to Florida. The route passes through desert regions, coastal areas and urban centers in eight states.
Construction of the route began in the late 1950s as part of the national highway program and lasted more than three decades. The final segment opened to traffic only in 1990, completing the continuous connection.
The highway system still carries traces of the original US Route numbering that ran parallel to the modern Interstate. Along the corridor, rest stops and fuel stations shape the experience of many truck drivers who regularly travel between coasts.
Drivers should plan the route in multiple stages and take regular breaks at rest stops to avoid fatigue. Road conditions and traffic density vary greatly depending on region and time of day.
In Louisiana, one section crosses the Atchafalaya Swamp on an elevated bridge roughly 18 miles (29 kilometers) long. This construction protects the roadway from fluctuating water levels in the largest river swamp in the country.
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