2024 OCEA Award Winner - Sixth Street Viaduct Replacement Project

The $588-million Sixth Street Viaduct Replacement opened in July 2022, which replaces a landmark that had been standing since 1932. It is designed to remain operational and undamaged after a once in a 1,000-year earthquake. The 10 arches of the viaduct cross over the Los Angeles River, 18 railroad tracks, Metrolink, and several highways and streets. It has received the Institute for Sustainable Infrastructure’s highest Envision certification of platinum. The new viaduct also features a revitalized 12-acre public area with parks, recreational facilities, and river access. It also includes a 3,500-foot-long path for bicyclists and pedestrians.