An unsigned route, 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 Branch Forbes Road, and Sam Allen Road east from there to Park and Wilder Roads northeast of Plant City.
Construction set for 2018 (project 257862-3-52-01) will expand a rural two-lane section of Sam Allen Road east from SR 39A (Paul Buchman Highway) to Wilder Road east of Park Road in Plant City. Costing nearly $30 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 through 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 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 in the city of Temple Terrace. Only signed at the west end, CR 580 spans the Hillsborough River along a 2.5 mile course east to Temple Terrace Highway and Harney Road.
- "Sam Allen Road widening closer to construction." Plant City Observer (FL), August 11, 2017.
State Road 39A - Paul Buchman Highway
Page Updated 06-03-2018.