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I-4 Beyond the Ultimate: Building a Better I-4

Construction on the Florida Department of Transportation’s (FDOT’s) I-4 Beyond the Ultimate is underway in Orange and Osceola counties, and several projects in Seminole County have already been completed.

An innovative new diverging diamond interchange (DDI) is now open at Interstate 4 (I-4) and County Road (C.R.) 532 near ChampionsGate. In addition, new bike lanes and sidewalks along C.R. 532 will improve cyclist and pedestrian connectivity and safety.

Several new capacity improvements are underway, including:

  • A new auxiliary lane on westbound I-4, beginning at the entrance ramp from State Road (S.R.) 429 and ending as an exit-only lane onto C.R. 532.
  • A new auxiliary lane on eastbound I-4, beginning at the entrance ramp from C.R. 532 and ending as an exit-only lane onto S.R. 429.
  • Milling and resurfacing of S.R. 429 between I-4 and Sinclair Road.
  • A new auxiliary lane on northbound S.R. 429 to Sinclair Road.

In addition, new pavement will extend the life of the I-4 roadway in both directions from the Osceola/Polk County line to west of S.R. 417.

The reconstruction of the Daryl Carter Parkway overpass into a DDI has begun. The existing overpass, which spans I-4 between Central Florida Parkway and S.R. 535, will be converted into a partial interchange with three new ramps: exit ramps from eastbound and westbound I-4 and an entrance ramp to eastbound I-4.

The Sand Lake Road interchange will also be reconfigured as a DDI starting in 2023, with additional capacity improvements to ease congestion at Turkey Lake Road. The Daryl Carter Parkway and Sand Lake Road interchange projects will include the construction of two segments of a new buffer-delineated managed lane on I-4, with the third and final segment coming as part of a future project.

The reconstruction of the E.E. Williamson Road overpass and construction of a new eastbound I-4 auxiliary lane from the east end of the I-4 Ultimate Project to Lake Mary Boulevard, which began in summer 2019, has been completed. Milling and resurfacing work has also been completed on both directions of I-4 in Seminole County.

Motorists should practice safe driving habits, such as paying attention to the road and their surroundings in the work zone. Sign up for personalized text or email alerts for advance notification of construction impacts.

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