Extending nearly 38 miles, Alternate U.S. Highway 19 is the longest roadway in Pinellas County. It connects the cities of Tarpon Springs, Dunedin, Clearwater, Largo, Seminole and St. Petersburg as well as Palm Harbor in the unincorporated area of north Pinellas County.
The configuration of the road and the character of adjacent land uses it serves vary widely throughout the corridor as do the traffic issues experienced by the people who use it. Approximately 30 miles of this corridor, extending from Park Street in Seminole to the Pinellas/Pasco County Line, is the subject of two planning studies being conducted by the Florida Department of Transportation (FDOT) District 7 Office. The purpose of the studies is to improve mobility and safety along the corridor for all transportation users in coordination with local government plans affecting its adjacent land uses.