Video: Earthquake Safety: Building the World’s First “Flexible” Bridge
Seattle’s newest bridge is built to do much more than withstand an earthquake – it’s built with columns designed to move with the ground and flex back into their original vertical shape after a strong quake. This new bridge is designed to remain open immediately after a powerful earthquake, when emergency response is critical. The Washington State Department of Transportation partnered with the University of Nevada’s Center for Advanced Technology in Bridges and Infrastructure in developing the...
A Few Months Before Its Official Opening, Tappan Zee Bridge Is Drivable
TARRYTOWN, N.Y. — Several months remain before it officially opens to long-expectant commuters, but it is now possible to drive across the entire three-mile length of the new Tappan Zee Bridge, a critical crossing in the suburbs of New York City. Like beavers steadily piling branches and mud into a dam, hundreds of workers have cobbled together enough of the outward-sloping towers, the radiating cables, the steel framework and the concrete-paneled roadway of the first of twin bridges so that...
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 the life of a bridge.
136.8-foot Super-Girders Used to Replace Washington’s Miles Creston Bridge
LINCOLN COUNTY, Wash. - As part of the Lincoln County Bridge Replacement Program, Oldcastle Precast of Spokane, Washington fabricated 136.8-foot-long prestressed concrete super-girders for the new Miles Creston Bridge in Lincoln County, Washington. The term “super-girder” resulted from the efficient shape of this new bridge girder family, which utilizes high strength concrete and .6” diameter prestress strand to maximize span length and minimize the number of girders. Precast, prestressed...
Tappan Zee Bridge Stay Cable Installation
Crews have finished installing the stay cables on the westbound span of the new Tappan Zee Bridge, the first portion of the bridge set to open later this year. The last of the 96 stay cables, the long metal strands hung off the new bridge's main span towers to suspend the road deck over the deepest part of the Hudson River, was installed last week on the Rockland-bound span, leaving a small gap in the main span.
Footage Shows I-85 Bridge Collapse in Atlanta
Gov. Nathan Deal declared a state of emergency on March 30 after fire officials extinguished a massive fire on I-85 in Atlanta that led to the collapse of a bridge on the crowded interstate. The bridge on I-85 northbound just south of Ga. 400 near Piedmont Road collapsed about 7 p.m., Atlanta fire spokesman Sgt. Cortez Stafford confirmed. No injuries to motorists or first responders were reported. Officials said they still don't know how long it will take to fix the bridge, but they agree...
Old Span Of Bay Bridge Going, Going, Gone
SAN FRANCISCO (CBS SF) – Demolition crews began dismantling the final section of the old eastern span of the Bay Bridge Tuesday, removing the last remnants of a structure that graced the San Francisco Bay skyline for more than 80 years. The 288-foot truss is the last of 19 that once supported two miles of roadway connecting San Francisco with the East Bay communities from Yerba Buena Island. The span became a symbol of the power of the 1989 Loma Preita earthquake when a section of its...
Watch How Tappan Zee Bridge's Main Span Towers Will be Constructed
Construction of the new Tappan Zee Bridge is halfway done. Work on the massive $4-billion project has reached the 50 percent mark two years after it started, Tom McGuinness, construction compliance engineer for the New York State Thruway Authority, said Wednesday during a media boat tour of the 3-mile site. The New NY Bridge’s iconic 419-foot main span towers will be constructed utilizing a unique type of self-climbing concrete “jump forms.”
Michael Baker International Launches Next Phase of Rancho Mission Viejo LLC $4.4 Million Contract to Enhance Infrastructure in South Orange County, California
Irvine, Calif. – Michael Baker International, a global leader in engineering, planning and consulting services, today announced that work is underway for the next phase of a $4.4 million contract by Rancho Mission Viejo LLC (RMV) for a new roadway called Cow Camp Road. Work on this phase of the contract will ultimately connect Antonio Parkway to Ortega Highway and provide all backbone infrastructure to support existing and planned multi-use development in south Orange County, California. This co...
Arup and Mabey Deliver First Rapid Assembly, Polymer, Modular Bridge
The world’s first modular glass-fibre, reinforced polymer bridge has been launched by Arup and Mabey, with Mabey becoming the first licensed distribution partner. The post-tensioned bridge is designed to be assembled in hard to reach sites where large cranes or heavy machinery cannot be used. Part-funded by the Rail Safety and Standards Board (RSSB) the modular bridge is expected to be of particular interest to the rail industry, providing a safer alternative to level crossings where traditio...
Video: New Roundabout Under Construction at McIver and Old Florence Roads in Darlington County
Promenade at The Point
June Issue 2026
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