The Grand Tower Pipeline Bridge is a suspension bridge carrying a natural gas pipeline across the Mississippi River between Wittenberg, Missouri and Grand Tower, Illinois.

[1] Although construction of a natural gas pipeline under the Mississippi River would have been cheaper, this option would have created great difficulty in handling any leaks and maintenance, so it was decided to construct a bridge to carry the gas pipeline.

It was constructed for the Texas–Illinois Natural Gas Pipeline company for an estimated $3,800,000 in 1953 (equivalent to $34.6 million in 2023[2]).

The bridge features two 266-foot-tall (81 m) steel framework towers, one on each side of the river.

The site at Grand Tower/Wittenberg was chosen because the river is narrow and deep there, and the limestone bedrock could be easily reached.