Karl Barth, Ph.D., West Virginia University, conducted extensive research on the PBTG system. The Short Span Steel Bridge Alliance (SSSBA) has initiated revisions affecting the use of press-brake-formed steel tub girder (PBTG) bridges that will be included…
AEIS Completes Testing and Inspection on Henry Hudson Bridge
New York, NY —Atlas Evaluation & Inspection Services (AEIS), a leading testing, inspection and certification company based in South Plainfield,…
Video: AASHTO Bridge Design Specifications Explained
Burak Boyaci, P.E., Product Manager for LEAP Bridge Steel at Bentley Systems, takes time to speak with Informed Infrastructure about updates to the AASHTO…
Long Island Rail Road Builds an Award-Winning New Bridge
The Long Island Rail Road Company (LIRR) was chartered in 1834, and is one of the few railroads that survived as an intact company from its original charter to the present. Like any transportation network—especially those that have been around for 183 years—LIRR…
Video: MDOT Bridges: Repair vs. Replace
Whether it’s an interstate over the Mississippi River or a local highway over a small creek, MDOT maintains over 5,000 bridges across the state. Learn more about how bridges are prioritized for repair or replacement, and how much each method costs to extend…
Video: Flexible Buried Bridges
This video includes a general overview of flexible buried bridges and commentary from the fabricator, county engineer and contractor who worked on a buried bridge in Iowa. View the video to learn more about the benefits of a flexible buried bridges, and why…
A Scenic, Secure Thriller: Elk Falls Park Suspension Bridge Provides Sensitive Access to Canadian Treasure
By Angus W. Stocking, L.S. Elk Falls, beautifully cascading for 89 feet (27 meters), is the centerpiece of Elk Falls Provincial Park on Vancouver Island. By all accounts, it’s one of Canada’s most-scenic waterfalls, but for most of the park’s existence,…
ITD Engineers Find $700,000 Savings, Traffic Efficiencies in Replacement of Owsley Canal Bridge in Eastern Idaho
RIGBY - In a tight budget environment where every dollar counts, Idaho Transportation Department engineers again found a way to safely stretch resources and still perform a needed replacement of an old bridge in the small, eastern Idaho town of Mud Lake. The…
Engineer Spotlight: The Unhappy State of U.S. Bridges and Highways
An interesting article ran in the American Society of Civil Engineers (ASCE) Journal of Leadership and Management in Engineering in 2008: “A Tale of Two Bridges: Dangerous and Still Standing.” Robert W. Clark, P.E., authored the piece about two well-used…
Final Thoughts: Bridges: Overcoming Gaps Literally and Metaphorically
The main theme of this issue of Informed Infrastructure is “bridges,” which allow people to cross rivers that used to be barriers. They provide a way to span a gap or valley rather than travel long distances around them. Bridges allow different modes of…