Arch bridges are one of the oldest types ... by the sheer force of their own weight. The New River bridge Today materials like steel and pre-stressed concrete have made it possible to build ...

The new two-mile-long bridge Key Bridge in Baltimore will be longer and higher than its 1970s-era steel arch continuous truss predecessor. Maryland officials have debuted the initial design ...

AECOM has designed a pedestrian bridge supported by a single arch in Chicago ... which created challenges to design, fabricate and erect over active railroad tracks and a major highway carrying ...

Almost a year after the Francis Scott Key Bridge in Baltimore was struck by the cargo ship Dali, designs for its replacement ...

It happened in New Jersey Wednesday afternoon, when the first of three giant steel arch bridge ... new Route 7 Wittpenn Bridge. The new Portal Bridge design has three arch spans totaling 1,200 ...