These cables would be used to hang the 5,000-lb. counterweight units. In total, there were to be two anchor points and two 5,000-lb. counterweights attached on each side of the gantry crane.

You can buy a gantry crane for $500 to $3,000—or build one yourself like Frank Howarth did in the video above. Frank mentions that he's not a structural engineer, but as a DIYer he wanted to ...

The two gantry cranes on I-481 are an engineering solution to a tricky construction dilemma. Picture two existing 2,100-foot long bridges side-by-side over a functioning railroad.

American Bridge Co. is leading the gantry crane operation as a subcontractor to Graham Contracting. The cranes are 95 feet wide, 55 feet tall and their tires are nearly 6 feet tall.

OLMSTEAD, IL (KFVS) - A giant crane that helped build the Olmsted Lock and Dam has been demolished. Workers used explosives to demolish the giant structure on Saturday evening, May 4.