Sound Transit’s consultants have invented a flexing track connection, using earthquake science, to safely move future light-rail trains on the I‑90 floating bridge.

2) Jointed stick rail on bridge timber decks. Little consideration is given to stick rail on a bridge deck. The gaps at the joint bars generally allow for “breathing” of the bridge, although rail ...

The East Link addition calls for 14 miles of new track on a $3.7-billion project, including $712 million for the two stations and track across the floating bridge.

A final design has been selected for the structure slated to replace Amtrak’s Susquehanna River Rail Bridge, a “girder arch” style that is not only tall enough to accommodate boat traffic on ...

Engineers have built about 24,000 bridges in California over the last century, but a new one under construction in Madera County for the state’s bullet train project shows that they can still ...

Transportation An early look at plans for new rail, pedestrian bridges over the Potomac. The $2 billion rail project between D.C., Virginia is on track to double capacity over the Potomac River by ...

Crews have installed one of the eight specialized track sections that will allow light rail trains to cross the Interstate 90 floating bridge.

A fast-track design replacing an old drawbridge over Boston’s Charles River is now underway, meant to address severe skews while minimizing disruptions to 50,000 weekday commuters. Massachusetts ...

According to Amtrak, two new fixed-span double-track bridges will replace the current double-track Susquehanna River Rail Bridge—the longest moveable bridge on the NEC—used by Amtrak, Maryland Area ...

SANDAG, with a goal of increasing train usage by double-tracking San Diego’s entire coastal rail corridor, funded and constructed the bridge’s replacement. The old, single-track bridge was a ...

Compared to other Seattle transportation projects, it should be easy to design a pedestrian and bike bridge over Interstate 5 at the Northgate light-rail station now under construction. Nobody’s ...