Treasure Island Causeway, Road bridge in Pinellas County, US.
The Treasure Island Causeway consists of three connected bridges, including two fixed structures and a central bascule drawbridge spanning 1,100 linear feet.
Built in 1939, this infrastructure operated as a toll bridge for 76 years until 2006, when federal funding enabled its transformation into a free passage.
The bridge maintains a connection between mainland St. Petersburg and the barrier islands, supporting the flow of residents and visitors to Gulf Coast beaches.
The causeway accommodates four lanes of traffic and features a computerized operation system for the drawbridge segment, managed through touch screen controls.
Through an early municipal agreement, the City of Treasure Island owns and operates this causeway despite its location within St. Petersburg city limits.
Location: Pinellas County
Official opening: 1939
GPS coordinates: 27.77080,-82.75340
Latest update: November 28, 2025 14:29
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