Spanning the gap between Downtown Los Angeles and Boyle Heights is the Sixth Street Viaduct. It is also known as the Sixth Street Bridge. Today we will delve into the story of this iconic structure.
The Sixth Street Viaduct is more than just a bridge. It’s a symbol of Los Angeles. It connects communities and spans not only geographical divides but also time itself. The Sixth Street Viaduct crosses the Los Angeles River, the Santa Ana Freeway, and the Golden State Freeway. It also passes over Metrolink and Amtrak lines.
Originally built in 1932, the first bridge stood for many years. In 1986, a survey deemed it potentially eligible for the National Register of Historic Places. But beneath its iconic facade lay a hidden flaw. The concrete used in its construction had a high alkali content. This led to cracks and weakened the structure over time.
By the early 21st century, concerns about its seismic stability grew. It was estimated that the bridge had a 70% chance of collapse in a major earthquake. In January 2016, the original Sixth Street Viaduct was closed. Demolition began soon after.
Before its demise, Mayor Eric Garcetti paid tribute to the bridge. He recorded an R&B song called “101SlowJam” to announce the freeway closures needed for demolition.
The demolition took nine months. About 48000 cubic yards of concrete were removed. Also 1245 tons of structural steel and 4200 tons of rebar were hauled away.
But from the ashes of the old rose a new Sixth Street Viaduct. Designed by architect Michael Maltzan and the HNTB Design-Build team, the new bridge opened on July 9, 2022. The new design includes green spaces around it. The new bridge cost $588 million.
The new Sixth Street Bridge features ten pairs of arches. Their heights range from 30 to 60 feet above the roadway. This design pays homage to the original 1932 structure.
The Sixth Street Viaduct has appeared in many films, television shows, and music videos.
The Sixth Street Viaduct is a testament to the city’s continuous evolution. It reflects Los Angeles’s spirit of innovation and connection. It is a landmark for both locals and visitors.