Next Step: Observe, Teach, and Keep Learning
Norman Quach, P.E., S.E., is a senior bridge engineer at T.Y. Lin International in San Francisco. His advice to younger engineers is to never stop learning....

Drones Can Improve Bridge Inspections

Updating History
A beloved 1921 Parker truss bridge in Healdsburg, California, underwent an extensive rehabilitation and seismic retrofit so that the community could continue to use the historic crossing....

Chief Engineer: Washington Roebling, the Man Who Built the Brooklyn Bridge, By Erica Wagner. New York: Bloomsbury USA, 2017

Robotic Rebar-Tying System Uses Artificial Intelligence
A robotic rebar-tying system that uses artificial intelligence on bridge construction projects has been successfully tested in Pennsylvania....

Value Engineering Shaves Years and $1.8 Billion from Ohio River Bridges Project (part of "Attractive Alternative")
A value engineering process for the Ohio River Bridges Project, of which the Lewis and Clark Bridge is just one part, saved more than $1.8 billion and shaved nine years from earlier estimates....

Pedestrian, Cyclist Bridge in Utrecht Crosses School Roof and Canal

Self-Healing Concrete Uses Natural Stone Formation Processes

World’s Longest Pedestrian Bridge Opens in Switzerland

Built from Below
The $95-million effort to first widen and then replace the 1,315 ft long Fox River Bridge, in Elgin, Illinois, faced myriad obstacles, including the need to avoid causing traffic delays on a busy stretch...

Musical Masterpiece
La Seine Musicale, a world-class concert hall on a redeveloping island west of Paris, is a masterpiece of structural, acoustic, and mechanical engineering. Resembling a ship at sea, the concrete structure...

Bridge Inspections Come of Age
Arising from the tragic collapse of a West Virginia bridge 50 years ago this month, the National Bridge Inspection Program has helped keep bridges in the United States safe for motorists for decades. The...

Risky Business: Identifying an Acceptable Rockfall Standard
For many parts of the U.S. highway system, cut slopes in rock are as common as bridges and embankments. These cut slopes, as well as some natural ones, produce rockfalls that pose risks to highway conditions...

A Pioneering Structure: The Eads Bridge
Though he was not trained as an engineer, James Buchanan Eads had the vision and will to design one of the great bridges of the 19th century. The Eads Bridge, spanning the Mississippi River at St. Louis,...

Big River Crossing
The Harahan Bridge, a double-track railroad bridge built in 1916, spans the Mississippi River between Memphis, Tennessee, and West Memphis, Arkansas. A century later, one of the former wagonways on the...

Army Corps Successfully Prints Full-Size Concrete Building
The U.S. Army Corps of Engineers has successfully printed a 512 sq ft concrete building using a custom 3-D printer developed for use in remote locations....

Concrete Additive Proved to Melt Snow without Deicing Salts

The Ups and Downs of Drone Inspections
Minnesota recently completed a trial using unmanned aircraft systems to inspect bridges. They found that the drones have their advantages—and disadvantages....

Attractive Alternative
The Lewis and Clark Bridge, an elegant cable-stayed bridge with diamond-shaped towers, connects highways in Indiana and Kentucky that had long been truncated and provides a clear alternative for interstate...

Diving Into Engineering
When the underwater portions of a bridge or waterfront facility need to be inspected, the right person for the job is often an engineer diver, a specially trained professional who understands load paths...

 

 

 

 

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