Caltrans Seismic Design Criteria (SDC) was used to determine internal reinforcing steel to achieve a displacement ductility of 5. Furthermore, all detailing used in the CIP model adhered to Caltrans ...

The Rio Vista Bridge closure in California was canceled without a rescheduled date, impacting local businesses and commuters.

Although the bridge itself is structurally sound, according to Caltrans, its deck is “rapidly deteriorating.” The reasons listed are concrete “fatigue” caused by heavy traffic, as well as ...

Marin County supervisors approved a funding plan that includes $400,000 from a federal grant for design and engineering work ...