Florida State Road 423

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State Road 423 marker

State Road 423
John Young Parkway
Lee Road
Route information
Maintained by FDOT
Length: 7.533 mi[1] (12.123 km)
Existed: early 1970s – present
Major junctions
South end: Church St. in Orlando
North end: US 17 / US 92 in Winter Park
Highway system
SR 421 SR 424

State Road 423 (SR 423), known for most of its length as John Young Parkway, and Lee Road east of Orange Blossom Trail, is a four- and six-lane surface road in the U.S. state of Florida. SR 423 is completely inside Orlando, Florida and runs from SR 408 north to U.S. Route 17/92 just east of Interstate 4.

SR 423 and its southern components serve as an alternate to the parallel Orange Blossom Trail. The road is named after John Young, an astronaut from the Orlando area.

Route description[edit]

SR 423 begins at an interchange with SR 408 and heads north towards Orange Blossom Trail. It then changes names to Lee Road east of Orange Blossom Trail to its terminus at U.S. Route 17/92 just east of Interstate 4.[2]

South of State Road 423's southern terminus, John Young Parkway, known as County Road 423 continues south towards I-4, the Beachline Expressway and the Southern Connector. South of the Osceola-Orange county line, it is unsigned County Road 531A and continues to a single-point urban interchange with the Osceola Parkway, ending a bit north of Pleasant Hill Road near Kissimmee, where the name changes to Orange Blossom Trail heading towards Campbell and to the Osceola-Polk county line. The section from US 192 southward is also numbered US 17-92.


The first section of SR 423 was built by the Florida Department of Transportation in the early 1970s, from Colonial Drive (SR 50) west of downtown Orlando north to Orange Blossom Trail (US 441-SR 500). Over the years, extensions to the south have been built, some by Orange County and some by the state.


An additional extension is being built which will bring John Young Parkway northward from Orange Blossom Trail in Orlando to meet the west end of SR 434 and is expected to be "finished in about two years".[3]

Major intersections[edit]

The entire route is in Orange County.

Location Mile[1] km Destinations Notes
Orlando 0.000 0.000 Church Street
0.17 0.27 SR 408 to I‑4 – Downtown Orlando, Ocoee SR 408 exit 8A
0.394 0.634 CR 526 (Old Winter Garden Road)
0.880 1.416 SR 50 (Colonial Drive) – Winter Garden
2.082 3.351 SR 438 (Princeton Street)
2.662 4.284 SR 416 (Silver Star Road) – Ocoee, Winter Garden
4.0 6.4 SR 434 north (John Young Parkway) interchange; northbound exit and southbound entrance
4.102 6.602 US 441 (Orange Blossom Trail / SR 500)
4.839 7.788 SR 424 (Edgewater Drive)
Winter Park 6.25 10.06
I‑4 (SR 400) / US 17 Truck north / US 92 Truck east
I-4 exit 88
6.336 10.197 Wymore Road - Eatonville
7.533 12.123 US 17 / US 92 (Orlando Avenue / SR 15 / SR 600)
1.000 mi = 1.609 km; 1.000 km = 0.621 mi