Golden Gate Bridge west sidewalk closed for 4 months starting Tuesday

The entire length of a Golden Gate Bridge sidewalk will close for several months starting Tuesday for a retrofitting construction project, bridge district officials said.

The entire west sidewalk will close Tuesday and remain closed through September as part of a seismic retrofit construction project. Bicycles and pedestrians will share the east sidewalk, with 24-hour access for bicyclists and sunrise-to-sunset use permitted for pedestrians, bridge officials said. The construction work also involves replacement of the roof of the Marin Anchorage Housing.

Come September, construction will move to the east sidewalk, but only a 300-foot section will be closed for four months into 2012.

The sidewalk closure is part of a third phase of a three-phase bridge retrofit project. The first two phases were completed in 2001 and 2008, respectively, according to bridge authorities.



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Earthquake Retrofitting Bridges - News


Golden Gate Bridge west sidewalk closed for 4 months starting Tuesday

The entire west sidewalk will close Tuesday and remain closed through September as part of a seismic retrofit construction project. Bicycles and pedestrians will share the east sidewalk, with 24-hour access for bicyclists and sunrise-to-sunset use



Highway 40 seismic strengthening is in home stretch

And for well over a decade now, the 1.2-mile stretch of highway has undergone a significant rehab to fortify it against earthquakes. The state's most extensive seismic retrofit job began after a 1989 earthquake destroyed a similar elevated highway in



Aurora Bridge Getting Seismic Retrofit From WSDOT

SEATTLE -- Major work is under way Thursday to retrofit the 80-year-old Aurora Bridge to better withstand an earthquake. The seismic retrofit will cost more than $5 million. The Washington Department of Transportation is focusing on the north and south



MoDOT Re-Opens Westbound I-64 in Downtown St. Louis

All lanes on the Poplar Street Bridge are open. MoDot closed two lanes this weekend for resurfacing work. Crews performed earthquake seismic retrofit work this weekend during the interstate closure. They made repairs on the bridge's driving surface.



Seismic work delayed on historic Healdsburg bridge

Work was supposed to start this summer, but has been postponed so that environmental studies can be completed for a more extensive rehabilitation of the bridge scheduled in 2012. “They indicated they would complete the seismic retrofit this summer.




Earthquake retrofitting of Aurora Bridge starts soon » My Wallingford

During the project, workers will be removing old chipped concrete and adding steel to the bridge to make it more structurally sound to withstand earthquakes.

Most of the activity will be during the day underneath the bridge on Troll Avenue between 36th Street and Lake Union. Workers will close one block at a time and fence off some parking so pedestrians and cars don’t get hit by construction debris. Other than the localized traffic and parking issues there shouldn’t be any significant impacts.

This $5.7 million project is funded by the 2005 gas tax.


Earthquake Retrofitting Bridges - Bookshelf

Seismic bridge design and retrofit -- structural solutions, state-of-art report

Seismic bridge design and retrofit -- structural solutions, state-of-art report

11 Seismic retrofit 11.1 Introduction Seismic retrofit of bridges which do not satisfy the current design requirements is increasingly becoming important ...

Bridge inspection and rehabilitation, a practical guide

Bridge inspection and rehabilitation, a practical guide

Cost for Repair / Replacement versus Cost for Seismic Retrofit. Bridges with a high ratio of repair or replacement cost (in the event of loss) to seismic ...

Seismic design and retrofit of bridges

Seismic design and retrofit of bridges

A state-of-the-art text on earthquake-proof design and retrofit of bridges Seismic Design and Retrofit of Bridges fills the urgent need for a comprehensive and ...

Bridge and Highway Structure Rehabilitation and Repair

Bridge and Highway Structure Rehabilitation and Repair

Consider bearings retrofit or replacement. Use seismic isolation technology ( Section 12.20) to retrofit bridges with short stiff columns. 5. ...

Bridge engineering, seismic design

Bridge engineering, seismic design

The success of the bridge seismic design and retrofit program and the success of future seismic design for California bridges is based, to a large degree, ...

Daily Information Directory


Seismic Retrofit - Wikipedia
Highlighting the levels and types of modifications that can be made to structures to minimize earthquake damage.

Seismic Retrofitting Manual for Hwy Bridges
The Seismic Retrofitting Manual for Highway Bridges was developed ... The San Fernando, California, earthquake of 1971 caused a significant amount of bridge damage and, as a ...

HeraldNet: Earthquake retrofit for I-5 bridges
Crews are working on 13 bridges on I-5 in south Snohomish County to make them better able to withstand strong earthquakes. ...

Retrofitting Techniques for Bridges and Flyovers - NBM Media
Abstract The extensive damage to bridges world over in earthquakes ... There are many retrofitting techniques developed for upgrading earthquake resistance in bridges. ...

HeraldNet.com - Local news: Earthquake retrofit for I-5 bridges
Sports: News and information for Snohomish County, Washington. ... Work to retrofit 922 bridges statewide began last year and is targeted for completion in 2015. ...