Seminole County Road 46A is an arterial running 5.53 miles east from CR 431 (Orange Boulevard) along the north Lake Mary city line to U.S. 17/92 (French Avenue) and SR 46 (25th Street) in the city of Sanford. A four lane, divided arterial, H.E. Thomas, Jr. Parkway carries CR 46A east to an interchange with SR 417 (Seminole Expressway) and Airport Boulevard. Beyond there, CR 46A narrows onto 25th Street, a four lane boulevard leading east to U.S. 17/92 (French Avenue) in the Sanford street grid. 25th Street continues east from French Avenue as the mainline of SR 46 to Midway and Geneva.
An unmarked extension of CR 46A follows an L-shaped route west from CR 431 (Orange Boulevard) 2.62 miles along Markham Road, and 1.51 miles north to SR 46 on Longwood Markham Road. An end shield for CR 46A west stands just north of H.E. Thomas, Jr. Parkway along Orange Boulevard.
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| CR 46A enters a parclo interchange with Interstate 4 by the Colonial Townpark commercial center on the Lake Mary city line. 03/21/08 |
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| CR 46A (H.E. Thomas, Jr. Parkway) intersects Rinehart Road (unsigned CR 431) on the east side of Interstate 4. CR 431 overlays Rinehart Road for 4.38 miles from Lake Mary Boulevard north to SR 46 in Sanford. 03/21/08 |
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| Rinehart Road (CR 431B) serves a bevy of retail and offices as it parallels Interstate 4 through Lake Mary and Sanford. 12/13/07 |
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| H.E. Thomas, Jr. Parkway briefly separates into a one way couplet east from Rinehart Road between Oaklawn Park Cemetery and Twin Lakes. 03/21/08 |
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| Traveling along the Lake Mary and Sanford city line, CR 46A (H.E. Thomas, Jr. Parkway) advances east to a traffic light with Via Albina Lane south to the Tuscany at Lake Mary subdivision and Oregon Avenue north to Rinehart Road. 03/21/08 |
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| County Road 46A fully enters the city of Sanford at Rantoul Lane and Mayfair Country Club golf course. 03/21/08 |
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| County Road 15 (Country Club Road) heads north through Mayfair Country Club from the city of Lake Mary to combine with County Road 46A. 03/21/08 |
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| Traffic lights were installed at CR 46A (H.E. Thomas, Jr. Parkway) at CR 15 (Country Club Road) south and Bunker Lane north to the Tee N Green Estates subdivision in 2008. 03/21/08 |
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| CR 15 dog legs east alongside CR 46A for just 0.105 miles before resuming a northward alignment along Upsala Road toward Lake Monroe. 03/21/08 |
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| H.E. Thomas, Jr. Parkway continues east from CR 15 (Upsala Road) along a portion of the Sanford city limits by the Idyllwilde of Loch Arbor neighborhood. 03/21/08 |
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| Vihlen Road navigates north from the next traffic light along CR 46A east along a stair stepped route to Idyllwilde Elementary, the Kays Landing subdivision in Sanford and CR 15 (Upsala Road). 03/21/08 |
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| Case Verde Boulevard provides the main entrance road for the Chase Groves development between CR 46A and Old Lake Mary Road. 03/21/08 |
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| H.E. Thomas, Jr. Parkway enters a diamond interchange with the Seminole Expressway (SR 417) between Chase Groves and Airport Boulevard (CR 425). 03/21/08 |
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| SR 417 winds east from I-4 through Sanford, connecting with CR 46A at the second of four interchanges for the city. The toll road spans Lake Jesup south from Mecca Hammock to Winter Springs and Oviedo. 03/21/08 |
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| SR 417 follows the Seminole Expressway in Seminole County and the Central Florida GreeneWay through Orange County as it encircles the Orlando metropolitan area east of I-4. 03/21/08 |
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| SR 417 (Seminole Expressway) arcs northwest from CR 46A to Rinehart Road near Seminole Towne Center mall. 03/21/08 |
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| Airport Boulevard (CR 425) runs alongside SR 417 south from Martin Luther King, Jr. Boulevard to U.S. 17/92 at the subsequent interchange along the toll road. 03/21/08 |
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| County Road 46A shield assembly posted east of Airport Boulevard (County Road 425). 03/21/08 |
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| Old Lake Mary Road crosses paths with H.E. Thomas, Jr. Parkway north from CR 425 (Airport Boulevard) to Southwest Road in Sanford. 03/21/08 |
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| Reassurance marker posted between Old Lake Mary Road and the at-grade crossing with SunRail. 03/21/08 |
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| Narrowing onto an undivided boulevard, CR 46A (25th Street) east meets Club Road north and Ridgewood Avenue at the Country Club Manor neighborhood in Sanford. 03/21/08 |
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| 25th Street east at Hartwell Avenue to the Dreamwold neighborhood in Sanford. 03/21/08 |
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| County Road 46A ends at U.S. 17/92 (French Avenue), where SR 46 overtakes 25th Street east toward Geneva. 03/21/08 |
Page Updated 08-17-2018.
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