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msnbc.com staff and news service reports / updated 6/30/2011 5:46:09 AM ET.
The Jiaozhou Bay bridge in China took more than four years to build. About 81 million cubic feet of concrete was reportedly used — enough to fill 3,800 Olympic-sized swimming pools.
With a price tag of at least $1.5 billion, the Jiaozhou Bay bridge is 2.5 miles longer than Louisiana's Lake Pontchartrain Causeway
China opened the world's longest bridge over water on Thursday.
The Jiaozhou Bay bridge is 26.4 miles long, according to Guinness World Records. It links China's eastern port city of Qingdao to Huangdao island.
State-run CCTV said the 110-foot-wide bridge cost more than 10 billion yuan ($1.5 billion). However, the Xinhua news agency put the cost at $2.3 billion and Britain's Telegraph newspaper reported its price tag totalled more than $8.8 billion.
CCTV said it passed construction appraisals on Monday. The bridge and an associated undersea tunnel opened to traffic on Thursday.
The bridge, which is supported by more than 5,000 pillars, took more than four years to build.
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