Support for InfrastructureUSA.org
has been provided by these organizations and individuals:

John Hennessy III,
P.E.

Posts Tagged ‘Washington’

WSDOT: Building a Highway Underneath Seattle

Tuesday, December 20th, 2016
WSDOT: Building a Highway Underneath Seattle

With a time-lapse camera mounted 54-feet high, you almost get a bird’s-eye view of work inside Seattle’s SR 99 tunnel. As the tunneling machine Bertha builds the tunnel, road crews are right behind – building the foundations, walls and the top deck of the double-deck highway drivers will travel on when the tunnel opens. Take a look.

View this complete post...

Behind the Scenes of Seattle-Tacoma International Airport’s People Mover System

Thursday, December 15th, 2016
Below ground, one of the trains arrives at SEA

Written by David Parker Brown, Editor-in-Chief and Founder of Airline Reporter The Seattle-Tacoma International Airport (SEA) has been my home airport most of my life. I have seen the many changes over the years and I am proud to call it mine. Growing up, I lived in Oak Harbor, WA (about 90min northwest of Seattle) […]

View this complete post...

Washington State DOT: Building the Floating Bridge over Lake Washington

Tuesday, December 6th, 2016
Washington State DOT: Building the Floating Bridge over Lake Washington

An overview of the reasons why the new SR 520 floating bridge was built on Lake Washington, and some of the solutions the project team developed to efficiently build the world’s longest floating bridge. The project won a 2016 Excellence in Design (Engineering) Award from the Design-Build Institute of America.

View this complete post...

Impacts of Carsharing in Five North American Cities

Wednesday, July 27th, 2016
Table 1 Vehicle and GHG Impacts from Free-Floating One-Way Carsharing

TRANSPORTATION SUSTAINABILITY RESEARCH CENTER Impacts of Car2Go on Vehicle Ownership, Modal Shift, Vehicle Miles Traveled, and Greenhouse Gas Emissions: An Analysis of Five North American Cities Executive Summary Carsharing is the shared use of a vehicle fleet by members for tripmaking on a per trip basis. There are four forms of carsharing in North America today: […]

View this complete post...

Washington, DC: Demonstrating a Hydrogen Fuel Station

Wednesday, July 20th, 2016
Washington, DC: Demonstrating a Hydrogen Fuel Station

In collaboration with the National Park Service, the Office of Energy Efficiency and Renewable Energy opened one of the first hydrogen fuel station demonstration facilities in Washington D.C.

View this complete post...

Seattle, WA: Workers Inside the SR 99 Tunneling Machine

Tuesday, July 5th, 2016
Seattle, WA: Workers Inside the SR 99 Tunneling Machine

This video was provided by Ballard Marine Construction, the firm in charge of managing and performing hyperbaric work on the SR 99 Tunnel Project in Seattle. It shows crews at work behind the SR 99 tunneling machine’s cutterhead during a planned maintenance stop in spring 2016. To stabilize soil and water that would otherwise flow through openings in the cutterhead, crews must pump compressed air into their work space at the front end of the machine.

View this complete post...

Puyallup, WA: The Historic Meridian Street Bridge

Monday, June 20th, 2016
Puyallup, WA: The Historic Meridian Street Bridge

For more than eight decades the Meridian Street Bridge over the Puyallup River has served as a portal for cities along the Puget Sound to community of Puyallup, Washington. Significant for its design, it is the only one of its kind in Washington, and may very well be unique in the United States, if not the world.

View this complete post...

Washington, DC: What Could Benning Road Look Like?

Wednesday, June 1st, 2016
Washington, DC: What Could Benning Road Look Like?

DDOTVideos

View this complete post...

Seattle, WA: Tunneling Under the Alaskan Way Viaduct

Tuesday, May 10th, 2016
Seattle, WA: Tunneling Under the Alaskan Way Viaduct

After nearly a week of tunneling under the Alaskan Way Viaduct, crews are steadily continuing Bertha’s underground drive towards downtown Seattle. This video gives you a behind-the-scenes glimpse into how the new tunnel is being built, showcasing the complex operations involved in this project. Massive concrete ring segments are transported to Bertha’s segment erector where they are lifted into place, allowing the machine to push forward while the excavated soil is transported along a network of conveyer belts and into a barge moored at Elliott Bay’s Pier 46.

View this complete post...

Washington State DOT: First Drive on the SR 520 Floating Bridge

Thursday, April 14th, 2016
Washington State DOT: First Drive on the SR 520 Floating Bridge

At 3:50 a.m. on April 11, 2016, WSDOT Incident Response Team drivers completed the maiden voyage across the new SR 520 floating bridge. The westbound lanes on the new bridge are now open to all drivers. Eastbound lanes will switch to the new bridge during the weekend of April 22-25.

View this complete post...

Receive Infra Update, our email newsletter.

Follow InfraUSA on Twitter Facebook YouTube Flickr

CATEGORIES


Show us your infra! Show us your infra!

Video, stills and tales. Share images of the Infra in your community that demands attention. Post your ideas about national Infra issues. Go ahead. Show Us Your Infra!  Upload and instantly share your message.

Polls Polls

Is the administration moving fast enough on Infra issues? Are Americans prepared to pay more taxes for repairs? Should job creation be the guiding determination? Vote now!

Views

What do the experts think? This is where the nation's public policy organizations, trade associations and think tanks weigh in with analysis on Infra issues. Tell them what you think.  Ask questions.  Share a different view.

Blog

The Infra Blog offers cutting edge perspective on a broad spectrum of Infra topics. Frequent updates and provocative posts highlight hot button topics -- essential ingredients of a national Infra dialogue.