California’s PCH could be in trouble as Malibu conditions deteriorate

PCH faces a new coastal threat

Pacific Coast Highway is one of California’s most recognizable roads, winding along the ocean through Malibu. Now, a section of the highway is facing a growing threat from coastal erosion. City officials say conditions are getting worse and want stronger protection before the next major storm season.

The problem became more serious after the Palisades Fire destroyed beachfront homes and the seawalls that once helped shield the roadway. With those barriers gone, waves can reach areas much closer to PCH, putting the road’s support structure at greater risk.

Fire damage changed the shoreline

The Palisades Fire did more than destroy homes in Malibu. It also removed structures that had helped protect parts of Pacific Coast Highway from the ocean. Several beachfront properties had seawalls that provided a layer of protection between powerful waves and the roadway.

After those homes burned, the shoreline became more exposed. Malibu officials say erosion has accelerated in some locations, leaving parts of the highway more vulnerable during high tides and periods of heavy surf.

Waves are reaching closer to PCH

Along some stretches of Malibu, waves now reach the remaining foundations of homes destroyed by the fire. Those locations can sit only a few feet from Pacific Coast Highway, creating concern about the material supporting the road.

The city says continued erosion could gradually remove that supporting material. That could make the roadway increasingly difficult to protect. Officials are pushing for permanent stabilization work rather than relying only on temporary measures already installed along vulnerable sections.

Malibu wants faster action

Malibu officials have asked Caltrans to move quickly on permanent measures to protect Pacific Coast Highway. The city says it has documented conditions, monitored affected properties and worked with state and local agencies to identify areas of concern.

Caltrans has already taken several steps. Temporary safety barriers were installed near Big Rock Beach, while crews began rebuilding the slope along PCH. The state transportation agency is also repairing a state-owned seawall near Las Tunas Beach.

Protective work is already underway

Caltrans is working on several projects designed to reduce immediate risks along the highway. Crews have been rebuilding a slope near Big Rock and repairing a seawall near Las Tunas Beach, two areas affected by coastal and fire-related damage.

The agency also completed two protective walls along PCH in July. Those walls sit on the inland side of the highway and are designed to help guard the road against rockfalls and landslides, adding another layer of protection after the Palisades Fire.

Winter storms could raise the stakes

Malibu officials are concerned about what could happen when stronger winter storms arrive. The city says expected El Niño conditions could bring heavier rainfall, higher surf and larger wave events that may speed up erosion along vulnerable parts of the coast.

Officials want stabilization work completed before winter because a single powerful storm can cause major damage. Their concern is that erosion expected to happen gradually could instead accelerate sharply during one period of severe weather.

High tides are already causing trouble

The erosion problem is not limited to one location in Malibu. High tides and strong surf have affected several parts of the California coastline this summer, creating problems for beaches, roads and other coastal infrastructure.

In Malibu, another popular beachfront area was recently closed indefinitely because of erosion linked to high tides. Farther south, strong swells also stripped large amounts of sand from Tamarack State Beach in Carlsbad, showing how quickly coastal conditions can change.

Highway 1 repairs have cost millions

California has seen how vulnerable Highway 1 can become when landslides damage the road. In Big Sur, the Mud Creek, Paul’s Slide and Regent’s Slide events blocked sections of the highway for extended periods.

Mud Creek cost approximately $54 million to repair, while work at Paul’s Slide cost about $60 million. The later Regent’s Slide project cost approximately $82.6 million, demonstrating the scale and expense of maintaining Highway 1 through unstable coastal terrain.

Little-known fact: In 1979, major rockslides near Malibu forced Caltrans to build a barrier and reduce the road from four lanes to three.

PCH has risks beyond erosion

Coastal erosion is only one challenge facing Pacific Coast Highway in Malibu. The road has also been the focus of safety concerns because of speeding vehicles, frequent traffic and limited space for pedestrians in some areas.

Before the Palisades Fire shifted attention toward emergency repairs, Caltrans was studying ways to reduce collisions along the highway. The feasibility study looked at possible changes that could make travel safer for drivers, cyclists and people walking to beaches.

Some protections vanished with homes

The connection between destroyed homes and coastal erosion is a key part of Malibu’s current problem. Before the fire, seawalls connected to some beachfront properties helped absorb or redirect the force of waves reaching the shoreline.

When those homes were destroyed, the protective structures disappeared too. That left sections of the coast with fewer barriers between the ocean and PCH. The situation highlights how private coastal structures can sometimes affect the protection of nearby public infrastructure.

Fun fact: Malibu’s historic Adamson House was built in 1929 and features extensive tile work from the family’s famous Malibu Potteries.

California’s coast is costly to protect

Protecting coastal roads is becoming a major challenge for California. Many highways and other structures were designed long before today’s concerns about stronger storms, rising seas and faster erosion became central to planning.

Moving roads or rebuilding them farther inland can be extremely expensive and complicated. Building protective structures can also require years of planning and coordination. Malibu’s situation shows the difficult choices communities face when important roads sit directly beside an increasingly active coastline.

A ferry has even been suggested

The challenges facing PCH have led some people to consider alternatives to keeping the highway exactly as it is. One idea that has been discussed is a high-speed ferry service that could move people along the coast without depending entirely on the highway.

For now, that remains a proposal rather than a replacement for PCH. The immediate focus remains on protecting and repairing the existing roadway while agencies assess which long-term solutions can work along Malibu’s difficult coastline.

Discover the California coastal town that kept its character across six miles of Pacific shoreline, with five distinct neighborhoods that still feel remarkably true to their roots.

What happens to Malibu’s famous road?

Pacific Coast Highway remains a vital route for Malibu residents, visitors and businesses, but its future depends on how well the roadway can withstand coastal forces.

State and local officials are now focused on preventing erosion from becoming a larger threat. The coming storm season could provide an important test for the temporary protections already in place.

Find out why Oregon’s Thor’s Well looks like a giant drainpipe swallowing the Pacific and how this dramatic coastal formation actually works.

What do you think Malibu should prioritize to protect PCH for the future? Share your thoughts in the comments and let us know.

This slideshow was made with AI assistance and human editing.

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