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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 runs from SR 408 north to U.S. Routes 17/92 (US 17/92) just east of Interstate 4 (I-4).
  State Road 423 and County Road 423 | ||||
|---|---|---|---|---|
| County Road 423 | ||||
 SR 423 in red, CR 423 in blue | ||||
| Route information | ||||
| Length | 21.33 mi[1][2] (34.33 km) 7.533 miles (12.123 km) as SR 423[2] | |||
| Existed | early 1970s–present | |||
| Major junctions | ||||
| South end | John Young Parkway in Hunters Creek | |||
| East end |   US 17 / US 92 in Winter Park | |||
| Location | ||||
| Country | United States | |||
| State | Florida | |||
| County | Orange | |||
| Highway system | ||||
| ||||
SR 423 and its southern components serve as an alternate to the parallel Orange Blossom Trail. The road is named after John Young, a NASA astronaut and one of twelve men to walk on the Moon, who was from the Orlando area.[3]
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SR 423 is signed north-south when named John Young Parkway, while as Lee Road it is signed east-west.
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, becoming an east-west road to its terminus at U.S. Route 17/92 just east of Interstate 4.[4]
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 Central Florida GreeneWay. 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.
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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—which included widening the existing roadway from four to six lanes from Shader Road to the U.S. 441/Orange Blossom Trail intersection, constructing two new overpasses and completing a new 1-mile alignment extension to Forest City Road/S.R. 434 at the intersection with Edgewater Drive/S.R. 424—was completed in 2013.[5] Benefits of the extension include a direct connection between John Young Parkway and SR 434 and a much-improved alternate route to serve commuters during I-4 Ultimate construction.[6]
Future improvements include widening John Young Parkway from SR 50 to Shader Road from four lanes to six lanes. This capacity improvement project will also improve the level of service and enhance safety. Design is expected to be complete in Spring 2015. Construction is currently not funded; the duration is anticipated to be 24 to 30 months.[7]
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The entire route is in Orange County.
| Location | mi[2][1] | km | Destinations | Notes | |
|---|---|---|---|---|---|
| Hunters Creek | 0.0 | 0.0 | John Young Parkway south | Continuation into Osceola County | |
| 1.8 | 2.9 |     SR 417 to I-4 – International Airport | Exit 10 on SR 417 (Central Florida GreeneWay) | ||
| | 5.2 | 8.4 |  SR 528 to I-4 – International Airport, Cocoa | Exit 3 on SR 528 (Beachline Expressway) | |
| | 7.2 | 11.6 |    SR 482 (Sand Lake Road) to US 17 / US 92 / US 441 (Orange Blossom Trail) / International Drive | Interchange | |
| Oak Ridge | 9.0 | 14.5 | Oak Ridge Road (CR 528A) | ||
| Orlando | 11.5 | 18.5 | I-4 – Tampa, Daytona Beach | Exit 79 on I-4 (SR 400) | |
| 13.8 0.000 | 22.2 0.000 | Church Street | Transition from CR 423 to SR 423 | ||
| 0.17 | 0.27 |  SR 408 to I-4 – Downtown Orlando, Ocoee | Exit 8A on SR 408 (East-West Expressway) | ||
| 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 – Altamonte Springs | interchange; northbound exit and southbound entrance; southern terminus of SR 434 | ||
| 4.102 | 6.602 | US 441 (Orange Blossom Trail) – Apopka, Orlando | Road is unsigned SR 500 | ||
| 4.839 | 7.788 |  SR 424 (Edgewater Drive) | |||
| Winter Park | 6.250 | 10.058 |   I-4 / US 17 Truck north / US 92 Truck east – Tampa | Exit 88 on I-4 (SR 400) | |
| 6.336 | 10.197 | Wymore Road – Eatonville | |||
| 7.533 | 12.123 | US 17 / US 92 (Orlando Avenue) | Road is unsigned SR 15 / SR 600 | ||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
| |||||
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