Support for
has been provided by these organizations and individuals:

John Hennessy III,

Posts Tagged ‘SR 520’

Washington State DOT: Building the Floating Bridge over Lake Washington

Tuesday, December 6th, 2016

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...

Tacoma, WA: Pontoon Bridge Float-Out

Thursday, February 7th, 2013

The second cycle of six pontoons for a replacement State Route 520 floating bridge were towed out of the Concrete Technology Corporation casting basin in Tacoma, Wash., from Jan. 28 to Jan. 31, 2013. In this time-lapse video, crews maneuver a large T-pontoon into position to add the additional floatation needed to tow the supplemental […]

View this complete post...

Bellevue, WA: SR 520 Bridge Work

Friday, July 20th, 2012

WSDOT and contractor crews closed the SR 520 floating bridge and highway July 13–16, 2012, to tackle an array of jobs, including demolition of the old 84th Avenue Northeast overpass and the last remaining piece of the old 92nd Avenue Northeast overpass, both seen in this video segment. Overpass demolition made way for new lidded […]

View this complete post...

Seattle, WA: 84th Ave Overpass Construction in Time Lapse

Thursday, May 3rd, 2012

Crews working for WSDOT hustle to set 42 girders for a new lidded overpass on SR 520. See how much progress is made from a weekend closure of the roadway. – wsdot on YouTube

View this complete post...

Medina, OR: SR-520 Road Construction

Wednesday, February 15th, 2012

Work on 520 – salildave on YouTube

View this complete post...

Medina, WA: SR 520 Timelapse

Monday, January 30th, 2012

Crews installed two million pounds of concrete girders for future lidded overpasses on SR 520 the weekend of Jan. 13 to 16. Work occurred at 92nd Avenue Northeast and Evergreen Point Road. The SR 520 Eastside Transit and HOV Project widens SR 520 from four to six lanes from Medina to Bellevue and includes rebuilding […]

View this complete post...

Too Much Debt: Washington State Can’t Finance Major Highway Projects It Has Planned

Tuesday, August 10th, 2010

SR 520 is one of two east-west roadways across Lake Washington. Approximately 115,000 vehicles carrying 190,000 people travel the SR 520 Evergreen Point Bridge every day.

Washington is dangerously close to its constitutional debt limit. SR 520 is dangerously close to the end of its useful life. The state is advocating a construction plan that can’t legally be paid for.

View this complete post...

Follow InfraUSA on Twitter Facebook YouTube Flickr


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!


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.


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.