Construction on the Florida Department of Transportation’s (FDOT’s) I-4 Beyond the Ultimate is underway in Orange and Seminole counties, bringing improvements to the areas of greatest need as soon as funding becomes available.
In Orange County, major Interstate 4 (I-4) interchange improvements include:
- Introduction of a new construction-phase diverging diamond interchange (DDI) at Sand Lake Road (State Road (S.R.) 482) in March 2024. Implementing this DDI gives crews space to work in the median of Sand Lake Road. Crews need that room to complete overhead bridge work, reconstruct the I-4 general use lanes, and extend I-4 Express from near Kirkman Road over Sand Lake Road. The express lanes will transition to a single, westbound, buffer-separated express lane from west of Sand Lake Road and tie in just west of Central Florida Parkway. The I-4 and Sand Lake Road interchange will continue to undergo improvements until anticipated completion in 2027.
- Conversion of the Daryl Carter Parkway overpass into a DDI. This project is transforming the existing I-4 overpass into an interchange with three new ramps: exit ramps from eastbound and westbound I-4 and an entrance ramp to eastbound I-4. A westbound I-4 entrance ramp will be part of a future project. This project includes an express lane extension from the Sand Lake Road project to west of Daryl Carter Parkway. FDOT expects to complete the project by early 2026.
- Partial reconstruction of the I-4 and Apopka-Vineland Road (S.R. 535) interchange, which began in 2023. This project will partially reconstruct the interchange to enhance safety and improve access to and from westbound I-4. A new loop ramp from northbound Apopka-Vineland Road to westbound I-4 will enhance mobility and safety by eliminating the need for motorists to turn left across traffic. This project is also extending the I-4 express lane to just west of S.R. 536. FDOT expects the project to reach completion in 2026.
- Ramp widening the westbound I-4 exit to eastbound S.R. 528 (Beachline Expressway) from one lane to two. FDOT began this capacity project in 2024 and anticipates reaching completion in 2026.
One project is underway in Seminole County:
- Capacity improvements to the intersection of County Road (C.R.) 46A (H.E. Thomas Jr. Parkway) and Rinehart Road began in 2023. This project will improve capacity and efficiency while reducing congestion at the I‑4 and C.R. 46A interchange. Plans include modifying select existing turn lanes and adding new turn lanes. The project will also add a new third lane to southbound Rinehart Road between C.R. 46A and Timacuan Boulevard. FDOT expects to complete the project in 2025.
Several I-4 Beyond the Ultimate projects have been completed. A DDI opened in July 2022 at I-4 and C.R. 532 near ChampionsGate. The project added bike lanes and sidewalks along C.R. 532 to improve cyclist and pedestrian connectivity and safety.
New I-4 auxiliary lanes opened in 2023 in both directions between C.R. 532 and S.R. 429 in Osceola County, and a new auxiliary lane opened in summer 2023 on northbound S.R. 429 between I-4 and Sinclair Road. FDOT crews also milled and resurfaced S.R. 429 between I-4 and Sinclair Road. FDOT completed that project in 2023. In summer 2024, the Department also completed the milling and resurfacing of I-4 in Osceola County from World Drive to the Orange County Line.
In March 2025, crews completed improvements at the I-4 and U.S. 17-92 interchange in Seminole County. This included realigning the eastbound exit ramp to improve sight distance for motorists, adding a new auxiliary lane on eastbound U.S. 17-92, and adding turn lanes on U.S. 17-92/Monroe Road and Seminole Boulevard. Additionally, crews on the project upgraded crosswalks for pedestrians, including a new pedestrian-activated crossing signal. To improve safety for pedestrians and bicyclists, the speed limit in the interchange was reduced from 50 mph to 35 mph. Safety on Florida’s roadways is everyone’s responsibility. FDOT urges motorists to practice safe driving habits, such as paying attention to the road and their surroundings in the work zone.
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