The Sunshine Skyway Bridge, spanning Florida's Tampa Bay, is the world's longest bridge with a cable-stayed main span, with a length of 29,040 feet (exactly 5.5 miles or approximately 8.85 km). It is part of I-275 (SR 93) and US 19 (SR 55), connecting St. Petersburg in Pinellas County and Terra Ceia in Manatee County, Florida, passing through Hillsborough County waters. Construction of the current bridge began in 1982, and the completed bridge was dedicated on February 7, 1987. The new bridge cost $244 million to build, and was opened to traffic on April 20, 1987.

It is constructed of steel and concrete. Twenty-one steel cables clad in nine-inch steel tubes along the center line of the bridge support the structure. It was designed by the Figg & Muller Engineering Group, and built by the American Bridge Company.

In November 2005, an act of Florida Legislature officially named the current bridge the Bob Graham Sunshine Skyway Bridge, after the Governor of Florida who presided over its design and most of its construction. According to sources, he was inspired to suggest the current design by a visit to France, where he saw a similar cable-stayed bridge. The original bridge was dedicated to state engineer William E Dean, as noted on a plaque displayed at the south rest area of the bridge.

The Travel Channel rated the Sunshine Skyway #3 in its special on the "Top 10 Bridges" in the World. The bridge is considered the "flag bridge" of Florida.

One of the major problems with the Sunshine Skyway Bridge is corrosion of the steel in the precast concrete segments. Because the segments are hollow, workers were able to enter the bridge superstructure in 2003 and 2004 to reinforce the corroded sections of the bridge, ensuring its future safety. Another problem arose around 2005/2006 when several news bureaus uncovered peeling paint on the bridge's cables. These paint splotches and patches were a result of touch-ups that were performed over the years but began to show through over recent years. FDOT is currently performing an overhaul which will include repainting the cables in their entirety (instead of touching up), rehabilitating the lighting system at the summit of the bridge, as well as repainting the concrete retaining walls http://www.sptimes.com/2006/07/14/Tampabay/Soon__a_mellow_yellow.shtml.