Bridge Seismic Program – Transportation

Updated: September 4, 2025 What is the Bridge Seismic program?  Seattle is located in an earthquake-prone region, and earthquakes can seriously impact our bridges. To address this risk, the City of Seattle created the Bridge Seismic Program to evaluate which bridges are vulnerable and reinforce them to better withstand seismic events. As part of the […]

How Honshu-Shikoku Bridge ensures the safe connection between two of Japan’s main islands

The last Japanese construction boom occurred more than 50 years ago prior to the 1964 Tokyo Olympic Games, and since then, due to the Japanese demographic shift, there has been an increased need for maintenance and upkeep, however, on the other hand, there is less need for new construction projects. What is your take on […]

Is seismic retrofit to blame for ‘unusual’ failure in Mississippi River bridge?

A major road bridge over the Mississippi River has been closed after a complete break was discovered in one of its steel support beams. The fault was found during a routine inspection of the Interstate 40 steel tied arch bridge – also known as the Hernando DeSoto Bridge – that connects Arkansas with Memphis in […]