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Ten people were injured Friday morning when a bridge that carries Forbes Avenue over Frick Park in Pittsburgh collapsed, officials said, with six vehicles including a Port Authority bus left stranded in the twisted mess of a bridge that had been listed in poor condition for the past decade. — The Pittburgh Post-Gazette
President Biden is visiting the city today in a pre-planned visit to Carnegie Mellon University’s Mill 19 research hub, where, ironically, he is expected to deliver a speech on the dire need for infrastructure investment in Pittsburgh and the rest of the country. The Biden Administration... View full entry
A much-needed piece of infrastructure is about to start taking shape for wildlife in Los Angeles’ Santa Monica Mountains. Curbed is reporting that construction for the Wallis Annenberg Wildlife Crossing, which connects a stretch of protected land along California’s 101 freeway called Liberty... View full entry
A major milestone has taken place in the Michael Maltzan Architecture-led effort to replace Los Angeles’ iconic 6th Street Viaduct. Construction Drive is reporting that the falsework has been removed and the first of ten spans successfully installed on the $588 million project that will... View full entry
Santiago Calatrava has sent Archinect a response to the recent news that the Ponte della Costituzione in Venice is set to be retrofit with new stonework following a rash of complaints caused by weather-aided slips on the bridge’s original tempered glass stairs. The story, first published in The... View full entry
Officials in Venice are finally caving to local demands to author significant changes to Santiago Calatrava’s Ponta della Costituzione bridge following years of protest and a rash of recent injuries. The New York Times is reporting that glass from the pedestrian bridge is going to be removed and... View full entry
An international bridge engineering and supply company by the name of Acrow has recently supplied a modular steel bridge to temporarily replace a bridge that was destroyed during Hurricane Ida in Louisiana. When the hurricane hit the country on August 29th, the Category 4 storm caused widespread... View full entry
The maddening hum of safety slats on the pedestrian handrails of the Golden Gate Bridge will finally be silenced under a recently released proposal by the Bridge District.
The fix — devised and tested by bridge engineers in consultation with aerodynamic and acoustic experts — calls for attaching U-shaped clips containing a thin rubber sleeve to all 12,000 vertical slats on the railings.
— The San Francisco Chronicle
The haunting acoustic hum is the direct result of a $12 million wind retrofit project authored by the Golden Gate Bridge Highway and Transportation District. A few enterprising locals have made the most of the deafening din, although the majority of drivers in the Bay Area were vocally against it... View full entry
OMA, along with landscape architects OLIN, structural engineers WRA, and other members of the 11th Street Bridge Park design team have reached major milestones in the planning and design of the multi-use pedestrian bridge in Washington D.C. The breakthroughs come following the review and approval... View full entry
Four years removed from one of the worst natural disasters in Mexico’s history, one small city in the state of Morelos is ready to bridge the chasm between past tragedy and future optimism thanks to the efforts of one New York firm. Image courtesy of OMA New York OMA has announced that it... View full entry
The single image published Dec. 8, 1922, resembles the industrial Carquinez Bridge, except at 20 times the scale. It’s the kind of bridge one designs when all they have to work with is Popsicle sticks and string. — The San Francisco Chronicle
An engineer turned newspaper editor named James Wilkins was the first to propose the bridge in a 1916 San Francisco Bulletin article. Joseph Strauss' early plans called for a cantilever-suspension hybrid but were later changed due to eight-figure cost concerns. Illustration of the... View full entry
Portland, Oregon-based designer Volkan Alkanoglu has installed a new timber and steel pedestrian bridge to showcase the “Plug-and-play urbanism” design strategy that is emerging behind the help of new technologies. The prefabricated off-site and installed in only a few hours... View full entry
A first-of-its-kind arched masonry footbridge composed of 3D-printed concrete blocks and assembled without mortar or reinforcement is now open in Venice. The project, called Striatus, is being showcased at the public park Giardini della Marinaressa during the 2021 Venice Architecture Biennale... View full entry
The world’s fist 3D-printed steel footbridge has been installed in Amsterdam. Created by Dutch company MX3D, the bridge measures 40 feet (12 meters) in length and contains 4.5 tons of stainless steel forming a curved, flowing structure. The bridge, formed of four main pieces, is intended to be... View full entry
Bridge specialists, Knight Architects, have received substantial public approval for their South Dock Bridge, a new pedestrian bridge in London’s Docklands. Once completed, it is expected to become one of the busiest pedestrian bridges in London. Designed by Knight Architects, Arcadis, and... View full entry
The Michael Maltzan Architecture-designed Sixth Street Viaduct is slowly taking shape in Los Angeles as new photos by LA Times photojournalist Allen J. Schaben show. The $588 million bridge project, the biggest in the city's history, emerged as the winning entry in the 2012 design competition for... View full entry