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Interstate 4 (I-4) is an Interstate Highway located entirely within the US state of Florida, maintained by the Florida Department of Transportation (FDOT). Spanning 132.30 miles (212.92 km) along a generally southwest–northeast axis, I-4 is entirely concurrent with State Road 400 ( SR 400 ).
There are four primary interstate highways and eight auxiliary highways, with a ninth proposed, totaling 1,497.58 miles (2,410.12 km) interstate miles in Florida. The longest interstate is I-75, extending 470.678 miles (757.483 km), and the shortest is I-395, extending just 1.292 miles (2.079 km). [4]
Every section of U.S. Highway and Interstate Highway has a State Road number assigned to it, usually unsigned (for example, Interstate 4 is also unsigned SR 400). In addition to some named toll roads (for example, 91 and 821, which make up Florida's Turnpike) some minor State Roads are also unsigned (like SR 913 and SR 5054).
In the mid-1970s, the Florida Department of Transportation (formerly the State Road Department) started a sequence of events that eventually resulted in the transferral of hundred of miles of roadway from State of Florida maintenance to county control. The first step was the addition of an "S-" or "C-" prefix onto the original FDOT designation ...
A map of Florida, with Interstate Highways in blue, and Interstate 4 in red. David Benbennick made this map with data from nationalatlas.gov. The map uses azimuthal equidistant projection, centered on (-81.7667 west, 28.1333 north).
The earliest evidence found of the old state road system is on a 1917 State Road Department map; [1] in 1923 the Florida State Legislature began writing the routes into law. Every two years, when the legislature met, new roads were added, at first by number, and later giving the SRD the ability to choose a number.
File history. Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail ... Category:Road maps of Florida Category:Interstate 4 ...
The Pershing Map was an early blueprint for a national highway system in the United States, with many of the proposed roads later forming a substantial portion of the Interstate Highway System. [1] It's the first official United States road map, and many of the proposed roadways were later incorporated into the current highway system.