WAMU 88.5 : News

Filed Under:

Silver Line Construction Reaches Milestone

Play associated audio
Workers use a truss to lower the 380-tons of concrete span into place.
Armando Trull
Workers use a truss to lower the 380-tons of concrete span into place.

The Dulles Rail project marks a major milestone today, as construction crews lay the final span for the bridges that will carry the Dulles Corridor Silver Line trains. That means the Orange Line terminus is ready to be hooked up.

"This marks the completion of the aerial structure of this project through Tyson's Corner," says Patrick Nowakowski, the executive director of the Dulles Corridor Metrorail Project. "We have over three miles of aerial structure and this is the last span being set into place."

The crews are using a truss that is longer than a football field to lift and move the 380-ton span, made up of 12 custom-cast concrete segments, so progress is slow-going.

"Obviously when you're picking up anything this heavy and you have workers underneath it, you have to be very careful and do this in a safe manner. We've been at this for several years now, so we've got it pretty well perfected, we take our time and we do it the right way."

When completed, the span will carry trains over the Capital Beltway and into the heart of the largest employment center in Virginia, Tyson's Corner.

NPR

What If You Hadn't Gotten Married? 'Dark Matter' Imagines An Alternate Life

Blake Crouch's new science fiction novel tells the story of Jason Dessen, a father and physics professor who suddenly finds himself in a parallel universe — in which he's unmarried and famous.
NPR

Japan's Lunchbox Trend 'Kyaraben' Takes Lunch Prep To Another Level

It's cute ... but is it too much cultural pressure?
NPR

Rallies, Marches And A 'Fart-In': Philadelphia Gets Ready For The DNC

As Democrats prepare for their convention in Philadelphia, protesters are preparing too. Bernie Sanders supporters and others are organizing rallies around the city.
NPR

The Reason Your Feed Became An Echo Chamber — And What To Do About It

It often feels as if social media serves less as a bridge than an echo chamber, with algorithms that feed us information we already know and like. So, how do you break that loop? We ask some experts.

Leave a Comment

Help keep the conversation civil. Please refer to our Terms of Use and Code of Conduct before posting your comments.