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Sunshine Skyway Bridge - Definition |
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The Sunshine Skyway Bridge is the world's longest cable-stayed concrete bridge, with a length of 29,040 feet (exactly 5.5 miles or nearly 9 km). It is part of I-275 (SR 93) and US 19 (SR 55), connecting St. Petersburg in Pinellas County, Florida and Palmetto in Manatee County, Florida, passing through Hillsborough County. Construction of the current bridge began in 1982 and was completed in 1987, at a cost of $245 million.
It is constructed of steel and concrete. Its longest span is 1200 feet (366 m), which is 190 feet (58 m) over the water. 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.
The present bridge replaces a steel cantilever bridge of the same name which was completed in 1954. That bridge was damaged on May 9, 1980 when during a storm a freighter called the Summit Venture hit a pier and knocked over 1200 feet (366m) of the bridge into Tampa Bay. The collision caused several automobiles and a Greyhound bus to plunge 150 feet, killing 35 people in one of the worst bridge disasters in history.
The old bridge replaced a ferry from Point Pinellas to Piney Point. US 19 was extended from St. Petersburg to its current end north of Palmetto when the bridge opened.
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