First arch installed for new Portal Bridge; ... “When the new tunnels open, you’ll have four tracks all the way into New York with modern signals, modern catenary,” Corbett said.

The first arch of three that will make up the $1.6 billion Portal North Bridge in Kearny was floated down the Hudson River and up the Hackensack Wednesday.

After spending years securing funding to build the new Portal North Bridge, U.S. Sen. Cory Booker, D-N.J., climbed to track level to see the construction firsthand. The bridge is scheduled to open in ...

In retrospect, history’s march into the future looks like a smooth catenary arch towards the present. But some technologies don’t make it. Sometimes, grand visions of the future only last for ...

Her mathematical models respond to the failings of the inverted parabola and the catenary form, classical theory’s only two existing concepts for an optimal arch which both have weak points.

It’s one of the most recognizable structures in the world and a national historic landmark, yet the true vision for the Gateway Arch in St. Louis was never fully realized. Eero Saarinen’s simple but ...

First arch installed for new Portal Bridge; ... “When the new tunnels open, you’ll have four tracks all the way into New York with modern signals, modern catenary,” Corbett said.