Pinellas County was formed in 1912, when it separated from Hillsborough County. A popular beach destination, magazines routinely rate Pinellas County beaches among the best in the entire country. However, with only 280 square miles and a booming population of 916,542 as of the 2010 Census, Pinellas County is perhaps the most densely populated county in Florida. Even Miami-Dade County, with its dense urban atmosphere near the coast has a significant amount of undeveloped land in the Everglades. No similar amount of undeveloped land is found in Pinellas County, with the exception of the Brooker Creek Preserve north of Oldsmar.
This page covers the system of state and county roads in Pinellas County, excluding Interstates, U.S. Highways, and SR 60. Not all state and county roads in Pinellas County are profiled here.
State Roads | County Roads
Unconstructed Pinellas Belt Expressway
There are several freeways that were planned but were canceled and not constructed. One of these was the Pinellas Belt Expressway, which was touted as a beltway that would connect with the Interstate 275 and Interstate 175 interchange at its southeastern end. It was then planned to follow today’s U.S. 19 Alternate/Florida 595 west to Seminole Boulevard and then aim north, connecting with the unconstructed Ulmerton Road Freeway (Florida 688, which is no longer slated to be upgraded to a freeway) and then merging with the canceled St. Petersburg-Clearwater Expressway, a diagonal route from Interstate 275 north of the Interstate 275/375 interchange and angling northwest to Largo near the U.S. 19 Alternate and Florida 686 (East Bay Drive) intersection.
The Pinellas Belt Expressway was actually budgeted for construction in 1974, but local opposition prevented the freeway from progressing. This freeway would have taken via eminent domain a good deal of commercial areas, including retail outlets, but several homes would also have to be condemned and removed. This was unacceptable to residents, so the freeway was canceled by the late 1970s. However, certain segments were built, including the full freeway interchange between U.S. 19 Alternate and Florida 666 in Bay Pines/Seminole.