County Road 580 - Sam Allen Road / Thonotosassa Road

Hillsborough County Road 580

Sparsely signed, County Road 580 follows a mostly rural route east from Thonotosassa to northern reaches of Plant City in Hillsborough County. The county road follows Thonotsassa Road east from Taylor Road to North Forbes Road, and Sam Allen Road east from there to Wilder Road northeast of Plant City. Park Road 0.6 miles south from Sam Allen Road to SR 553 at Interstate 4 in Plant City is an unsigned leg of CR 580 as well.

Construction (project 257862-3-52-01) started in November 2018 expands the rural two lane section of Sam Allen Road east from a point just west of SR 39A (Paul Buchman Highway) in Plant City to Wilder Road. Costing $23.2 million, the FDOT project expands two miles of Sam Allen Road into an divided urban arterial with four lanes, bicycle lanes and sidewalks. The expansion will support anticipated development and complete an arterial beltway encircling Plant City. Work runs until Summer 2021.1

Expansion plans for both Sam Allen Road (CR 580) and the north end of Park Road were incorporated in the Project Development and Environment (PD&E) Study for SR 39 between I-4 at Plant city and U.S. 301 at Zephyrhills. The study was approved by Federal Highway Administration (FHWA) on November 17, 2000. The PD&E Study for improvements to CR 580 and Park Road included Sam Allen Road west to SR 39 (Alexander Street) and Park Road south to I-4.

A separate segment of County Road 580 extends east from SR 580 (Busch Boulevard) and SR 583 (56th Street) along Bullard Parkway and Temple Terrace Highway. Only signed at the west end in the city of Temple Terrace, CR 580 spans the Hillsborough River along a 2.52 mile course east to Temple Terrace Highway and Harney Road.

References:

  1. "Sam Allen Road widening closer to construction." Plant City Observer (FL), August 11, 2017.

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Page Updated Thursday March 18, 2021.