Bridges Seismic

Sharid K. Amiri
Article November 19, 2018
California, the fifth largest economy in the world and the most populous state in the union, is considered a seismic-prone state where earthquakes play an important role in shaping the design and construction of the infrastructure, critical to its economic well-being. The 1994 Northridge and the...
Several people reported dead after bridge collapse in Genoa, Italy

Source: screen capture, CNN.com

News August 14, 2018
At least 37 people have died after a section of a highway bridge in northern Italy partially collapsed Tuesday, according to Italian officials.   CNN reports that Angelo Borrelli, head of the Italian Civil Protection Agency, told journalists that around 30 vehicles and several heavy-duty trucks...
ABC bridge earthquake testing
News May 08, 2018
Combined accelerated bridge construction methods were determined to be safe and ready for real-world application following tests using massive shake tables at the University of Nevada, Reno’s world-renowned Earthquake Engineering Laboratory.   The tests in April subjected a 70-ton, two-span, 70-ft-...
Delaware DOT settles lawsuit with four firms over I-495 bridge repairs
News April 10, 2018
Following months of negotiations, the Delaware Department of Transportation (DelDOT) has tentatively settled a legal battle that sprung from a months-long emergency shutdown of I-495 outside of Wilmington in 2014.   DuPont and three other companies have agreed to pay an as-yet undisclosed amount to...
Rte. 79/I-195 Interchange Reconstruction

The existing interchange was comprised of 11 separate structures totaling 111 spans, 10 of which were classified as structurally deficient with 94% of the steel rated deficient and requiring costly emergency repairs.

Article December 04, 2017
When final design and construction launched in 2013 on the Massachusetts Department of Transportation’s (MassDOT) Rte. 79/I-195 Interchange Reconstruction and Braga Bridge Improvements project in downtown Fall River, safety, accessibility, traffic management and community enhancement served as the...
Angus L. Macdonald

Photographer: Lynn Fergusson

Article November 01, 2017
For Halifax, Nova Scotia, the Angus L. Macdonald Bridge has been an iconic structure for more than 60 years. Years that, as the bridge spans an occasionally rough and always popular Atlantic waterway (Halifax Harbour), had taken a significant toll. As noted in our May 2017 issue (“A new life for...
Lesner Bridge
Article November 01, 2017
The scenic north shore region of Virginia Beach, Va., is a popular location for locals and summer vacationers.   The main east-west thoroughfare in this area is Shore Drive (Rte. 60), seeing an average of 40,000 travelers per day. Along Shore Drive are two bridges constructed in 1958 and 1967,...
UAV bridge inspection
Article October 05, 2017
Drones. Unmanned Aerial Systems (UAS). Unmanned Aerial Vehicles (UAV). Regardless of how they are referred, these highly versatile machines continue to gain traction, expanding beyond recreational use into commercial applications.   The civil engineering industry is a leader, exploring uses for the...
Veer Kunwar Singh Bridge
Article September 07, 2017
The new Veer Kunwar Singh Bridge, formerly known as the Arrah-Chhapra Bridge, opened to traffic in June 2017 and connects the rapidly growing cities of Arrah and Chhapra in the northeastern Indian state of Bihar.   The bridge has a total length of 4.35 km, 1.96 km of which is composed of back-to-...
The northwestern portion of the Viaduct crosses the Los Angeles River, the Los Angeles River Greenway Trail and Riverside Drive. The PVC shrink-wrap contains the blasting media and byproducts.

The northwestern portion of the Viaduct crosses the Los Angeles River, the Los Angeles River Greenway Trail and Riverside Drive. The PVC shrink-wrap contains the blasting media and byproducts.

Article May 02, 2017
While “blast and paint” rolls off the tongue easily, providing access to the underside of the Elysian Viaduct Bridge for rehabilitation work is anything but easy.   In fact, as the original bridge construction project neared completion, the September-October 1961 issue of the Official Journal of...
Cable dehumidification makes a push in the U.S.
Article April 03, 2017
When inspections of Maryland’s William Preston Lane Jr. Memorial Bridge, also known as the Bay Bridge, revealed that conventional cable corrosion protection systems in both eastbound and westbound spans were no longer effective, the Maryland Transportation Authority (MDTA) took a proactive approach...
News September 21, 2015
Monitoring the status and daily traffic load on a given bridge is an almost impossible task using traditional methodologies. The advent of new smart infrastructure technology, however, is looking to change the mindset regarding bridge inspections and monitoring in the New England region. The...
Article December 08, 2011
"I feel somewhat like a lone survivor, who gets the trophy bottle of champagne.”Ed Wasserman, CE director of the Tennessee Department of Transportation’s (TDOT) Structures Division, has spent 21 of his 25 years as state bridge engineer dedicated to the seismic retrofit of the I-40 Mississippi River...
Article October 01, 2005
 
Article May 09, 2005
For Caltrans and Randell Iwasaki, there’s no such thing as a bridge too far. Bridges epitomize strength. These tall, majestic structures provide vital transportation links, connecting landmasses that were once considered irrevocably distant. Usually taken for granted, bridges have become an almost...
Article May 20, 2004
Earthquakes can strike anywhere in the U.S., and there is always a chance that a quake will topple a bridge pier, shake open a gaping rupture in a road or make the earth flow like liquid out from under a highway. A transportation agency needs to know what the risk really is and how it might be cost...
Article May 20, 2004
When most of the 45 million residents clustered along the West Coast refer to the “big one,” they are inevitably discussing a major earthquake along California’s infamous San Andreas Fault. That is, of course, unless they are among the 2 million residents of the greater Seattle-Tacoma area. For...
Article May 16, 2003
By the end of this year, southeast Missouri will be the home of the newest cable-stayed bridge in the U.S. and the longest cable-stayed span over the Mississippi River. The 3,956-ft-long Bill E. Emerson Memorial Bridge, named for the southeast Missouri congressman within days of his passing, will...
Article May 16, 2003
Twenty-five deteriorated bridges along a 5-mile corridor of I-80 in Salt Lake City were in need of major repair. Most were showing signs of advanced corrosion due to prolonged exposure to the harsh environments and deicing salts. Of the 25 bridges, 12 were considered structurally deficient...
Article December 28, 2000
On Oct. 17, 1989, the Loma Prieta earthquake struck the San Francisco and Monterey Bay areas. Measuring 7.1 on the Richter scale, the earthquake was the largest to occur in the San Francisco area since 1906. The epicenter was located along the San Andreas Fault, north of Watsonville, Calif. Tremors...
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