Seems the Gibraltar Super Bridge here in Spain will beat it (1 Million Miles Wire Cable

)
http://www.skyscraperpage.com/cities/?buildingID=5478
Description
Facts from Discovery Channel
Location- Strait of Gibraltar, Links Spain and Morocco.
Length - 9 miles, Two spans of 4 1/2 miles each
Height - Each tower is 3,000 feet tall
Width 5 traffic lanes, 2 breakdown lanes in each direction
Road Deck Material - Fiberglass
Length of Wire Cables - 1,000,000 miles (Enough to circle the Earth almost 30 times)
Cost - $15 billion
Dangers - Wind speeds of 80 mph at tops of towers, ship collision, ocean currents, traffic, Sahara Desert dust storms