LA Rivers Get Trash Barriers Before 2028 Olympics

Millions of plastic bottles, bags, and wrappers flow from Los Angeles rivers into the Pacific Ocean every year, but that's about to change in a big way.

The Ocean Cleanup is expanding its presence in LA with new barrier systems in the Los Angeles and San Gabriel Rivers. These innovative Interceptors will catch trash before it reaches the ocean, targeting between 410 and 628 tons of plastic annually.

The project comes at a perfect time. Long Beach will host sailing and rowing events during the LA28 Olympic Games, and city leaders want to showcase clean waters to visitors from around the world.

LA County already has proof this works. An Interceptor installed in Ballona Creek in October 2022 has already stopped over 193 tons of trash from reaching Santa Monica Bay and local beaches.

The Ocean Cleanup didn't guess where to put the new barriers. They flew drones, used AI cameras, and tracked GPS drifters to map exactly where plastic flows through the city's waterways.

Seal Beach collected roughly 500 tons of trash from its shores last year alone. Much of that waste traveled down rivers from communities upstream, meaning one city's litter became another city's beach problem.

LA County Supervisor Janice Hahn championed the Ballona Creek project and pushed for this expansion. "It's never been fair that one city's trash has become another city's problem," she said. "We are committed to working together to get this done and make our ocean and our beaches cleaner for all of us."

The Ripple Effect

This LA expansion is part of something much bigger. The Ocean Cleanup's 30 Cities Program aims to stop one third of all river plastic from entering the world's oceans by 2030.

Research shows that just 1,000 rivers out of three million worldwide are responsible for nearly 80 percent of ocean plastic. By focusing on these pollution hotspots, the impact multiplies exponentially.

Long Beach Mayor Rex Richardson emphasized that protecting coastlines starts upstream. The partnership combines local leadership with proven technology to create cleaner spaces for current residents and future generations.

Both new deployments are backed by independent feasibility studies from Long Beach and Seal Beach, ensuring the technology fits each river's unique conditions. Construction will finish before athletes and spectators arrive for the 2028 Games.

The initiative shows what happens when county and city leaders prioritize ocean health and work across jurisdictions to solve shared problems.