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Florida State Road 400

Interstate 4 marker

Interstate 4
Route information
Maintained by FDOT
Length: 132.298 mi (212.913 km)
Existed: 1957 – present
Major junctions
West end: I-275 in Tampa
 
East end: I-95 / SR 400 in Daytona Beach
Location
Counties: Hillsborough, Polk, Osceola, Orange, Seminole, Volusia
Highway system
SR 3 SR 4
SR 399 Florida 400.svg SR 401

State Road 400
Location: Tampa-Daytona Beach
Length: 136.514 mi (219.698 km)

Interstate 4 marker

Interstate 4 (I-4) is a 132.298-mile-long (212.913 km) Interstate Highway in the U.S. state of Florida, along a southwest–northeast axis from I-275 in Tampa to I-95 at Daytona Beach. The entirety of I-4 overlaps nearly the entirety of State Road 400 (SR 400), which extends as a contiguous, signed 4.216-mile (6.785 km) surface street in Daytona Beach from I-95 to US Highway 1 (US 1, also SR 5). I-4 has no auxiliary Interstate Highway spurs or loops; however, it intersects several tolled expressways—designated as state roads—that serve as spur and partial loop routes in the Orlando metropolitan area, which (unlike most major U.S. cities) lacks any auxiliary interstate highways.

The first segment of I-4 opened to traffic in 1959 and the highway was largely completed in 1967. I-4's original western terminus was in St. Petersburg, but in 1971 the highway segment from St. Petersburg to its present terminus at I-275 was redesignated as part of I-75 before being redesignated again as I-275. The median of I-4 between Tampa and Orlando was the planned route of a high-speed rail line between these cities, which was cancelled in 2011. The "I-4 corridor" is a strategic region in politics, due to the large number of undecided voters in a large swing state.


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Wikipedia

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