Drones Can Improve Bridge Inspections

Bridges: A History of the World’s Most Spectacular Spans, By Judith Dupre. New York City: Black Dog & Leventhal Publishers, 2017.

Replacing a Landmark
In replacing the historic Greenfield Bridge, which links the Pittsburgh neighborhood of Greenfield to Schenley Park, the bridge’s designers were challenged to re-create a landmark structure while minimizing...

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....

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....

Pipeline Protection
To improve the seismic reliability of three critical pipelines, California’s Santa Clara Valley Water District installed what is believed to be the first large-diameter earthquake-resistant ductile iron...

Fast Forward: Not So Fast
Part amphitheater, part bridge, this crossing has space for everyone from book readers to automobile drivers....

Safer in Seattle
Constructed in the early 1900s, the Elliott Bay Seawall, in Seattle, protects the city’s downtown waterfront from the erosive forces of Puget Sound and Elliott Bay. Because of its deteriorating condition...

State of the Practice for Laboratory Testing of Soft Soils: It's All in the Details
As with all material testing, soils testing has undergone dramatic advances in technology because of computer automation. In the 1970s, laboratories were filled with dial gages, proving rings, mercury...

Avoiding Impacts of Collapsed Mines on Railways: A Multidisciplinary Geophysical Detective Approach
The presence of abandoned mine workings can pose a significant risk to the use and development of surface structures above them, including railway lines. Typically, the adverse and often sudden effects...

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

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....

Inexpensive, Portable, Nondestructive Equipment Tests Bridge Capacity
A research team at Rutgers University has developed cost-effective, portable, nondestructive equipment to test bridge capacity....

First Person: Lucky Horseshoe
A $798-million Dallas highway project improved traffic flow into and out of the city’s downtown. The new “Horseshoe” interchange corrected the traffic bottlenecks and safety concerns of the original design...

Ready, Set, Launch
The replacement of a Warren through-truss bridge with a new structure similar in appearance over a very busy, 23-track rail yard in Minneapolis required prefabrication of steel trusses and an innovative...

The Virginia Difference
Designed in-house by the Virginia Department of Transportation, the recently completed Route 340 South Fork Bridge, in Front Royal, replaces an existing structure that dated to the early 1940s. The longest...

Sustainability and Resilience in Transportation Infrastructure Geotechnics: Integrating Advanced Technologies for Better Asset Management
The 2030 Agenda for Sustainable Development, adopted by the United Nations General Assembly in September 2015, enumerates 17 sustainable development goals (SDGs) to be achieved by the member countries...

When Bridges, Roadways, and Dams Need Our Help: Innovative Techniques Can Help Save Our Nation's Critical Infrastructure
The nation's infrastructure is showing its age. The signs are obvious with structure distress, lack of functionality, and failure reported frequently over the last several decades. Specialty geotechnical...

Guidelines for Construction Vibrations: How Much Rattle is Too Much?
The study of construction/blast-related ground vibrations on structures, people, and objects is a surprisingly diverse field. Vibration sources vary from blasting, all types of construction equipment,...

World’s Longest Pedestrian Bridge Opens in Switzerland

 

 

 

 

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