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  1. Length132.30 mi (212.92 km)
    Existed1959–present
    NHSEntire route
    West endI-275 in Tampa
    Route description

    I-4 maintains a diagonal, northeast–southwest route for much of its length, although it is signed east–west. It roughly follows the original path of the South Florida Railroad built by Henry B. Plant in … See more

    History

    I-4 was one of the first Interstate Highways to be constructed in Florida, with the first section opening between Plant City and Lakeland in 1959. By early 1960, the Howard Frankland Bridge was opened to traffic, as w… See more

    Future

    I-4 Beyond the Ultimate, which includes proposed extensions of the I-4 Express toll lanes, both southwest and northeast of the I-4 Ultimate project, are being considered. In 2013, FDOT initiated a study to reevaluate … See more

    In politics

    In the 2004 US presidential election in Florida, the I-4 corridor, a commonly used term to refer to the counties in which I-4 runs through and a site of significant population growth, was a focus of political activity with… See more