Treasure Island Causeway is a series of three bridges (the outer ones fixed, the middle one a bascule drawbridge) crossing Boca Ciega Bay between Treasure Island and St. Petersburg in Pinellas County, Florida. The bridge, which carries County Road 150 (CR 150), is owned and maintained by the City of Treasure Island, which used to charge all motorists $1.00 toll, until June, 2006, when the first span of the bridge was reopened with no toll booth. Residents of two St. Petersburg waterfront communities (Causeway Isles and Yacht Club Estates) used to pay a $10 annual road tax to the City of Treasure Island to help support road and median maintenance. That tax was eliminated in the spring of 2007. Treasure Island's ownership of the causeway in St. Petersburg was part of a land agreement entered