Powerful Pacific swell brings threat of more dangerous surf to California

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Crews raced to build sand berms against high surf a day after a rogue wave injured eight during a powerful Pacific Ocean swell. The waves were expected to grow up to 25 feet (7.6 meters) over the weekend. (Dec 30) (AP Video/Eugene Garcia)

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A sand berm is bulldozed to prevent high surf from impacting beach front properties Friday, Dec. 29, 2023, in Ventura, Calif. (AP Photo/Marcio Jose Sanchez)

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Visitors watch the surf behind sand berms constructed with bulldozers to prevent waves from crashing over beach-front properties, Friday, Dec. 29, 2023, in Ventura, Calif. (AP Photo/Marcio Jose Sanchez)

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Waves smash against a home along the California coast in Malibu Beach, Calif. on Friday, Dec. 29, 2023. Powerful surf rolled onto beaches on the West Coast and Hawaii as a big swell generated by the stormy Pacific Ocean pushed toward shorelines, causing localized flooding. (AP Photo/Richard Vogel)

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A surfer walks near the shore in front of high surf Friday, Dec. 29, 2023, in Ventura, Calif. (AP Photo/Marcio Jose Sanchez)

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Workers set up sand bags in front of a beachfront property in anticipation of high surf hitting the shore Friday, Dec. 29, 2023, in Ventura, Calif. (AP Photo/Marcio Jose Sanchez)

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This photo provided by Duke’s Beach Grill, water from high waves food the streets of Ventura, Calif., on Thursday, Dec. 28, 2023. Bulldozers built giant sand berms Friday to protect beachfront homes in one of the California cities hit hard this week by extraordinary waves generated by powerful swells from Pacific storms. (Duke’s Beach Grill via AP)

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An early morning surfer on foil board takes advantage of calm seas along the California coast in Malibu Beach, Calif. on Friday, Dec. 29, 2023. Powerful surf rolled onto beaches on the West Coast and Hawaii as a big swell generated by the stormy Pacific Ocean pushed toward shorelines, causing localized flooding. (AP Photo/Richard Vogel)

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Surfers stretch before heading out to the surf in Malibu Beach, Calif. on Friday, Dec. 29, 2023. Powerful surf rolled onto beaches on the West Coast and Hawaii as a big swell generated by the stormy Pacific Ocean pushed toward shorelines, causing localized flooding. (AP Photo/Richard Vogel)

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Waves smash against a sea wall next to homes along the California coast in Malibu Beach, Calif. on Friday, Dec. 29, 2023. Powerful surf rolled onto beaches on the West Coast and Hawaii as a big swell generated by the stormy Pacific Ocean pushed toward shorelines, causing localized flooding. (AP Photo/Richard Vogel)

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People watch as turbulent surf pounds the side of the pier in Manhattan Beach, Calif. on Thursday, Dec. 28, 2023. (AP Photo/Richard Vogel)

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Large waves crash in to Duncan’s Landing north of Carmet, Ca., Thursday, Dec. 28, 2023 due to a Pacific storm pummeling Northern California. (Kent Porter/The Press Democrat via AP)

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A surfer walks on the beach high surf hits the area Friday, Dec. 29, 2023, in Ventura, Calif. (AP Photo/Marcio Jose Sanchez)

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A sand berm is bulldozed to prevent high surf from impacting beach front properties in front of a surfer, Friday, Dec. 29, 2023, in Ventura, Calif. (AP Photo/Marcio Jose Sanchez)

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A sand berm is bulldozed to prevent high surf from impacting beach front properties Friday, Dec. 29, 2023, in Ventura, Calif. (AP Photo/Marcio Jose Sanchez)

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Surfers head out in the early morning to catch the waves in Malibu Beach, Calif. on Friday, Dec. 29, 2023. Powerful surf rolled onto beaches on the West Coast and Hawaii as a big swell generated by the stormy Pacific Ocean pushed toward shorelines, causing localized flooding. (AP Photo/Richard Vogel)

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Ventura County Star photographer Juan Carlo, at right, makes cell phone images of workers on bulldozers constructing sand berms to prevent waves from crashing over beach-front properties, Friday, Dec. 29, 2023, in Ventura, Calif. (AP Photo/Marcio Jose Sanchez)

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Workers set up sand bags in front of a beachfront property in anticipation of high surf hitting the shore Friday, Dec. 29, 2023, in Ventura, Calif. (AP Photo/Marcio Jose Sanchez)

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A view from Rio Del Mar Boulevard of the damage from high waves and flooding at Rio Del Mar Beach in Aptos, Calif., Friday, Dec. 29, 2023. Waves overran beaches Thursday on the California coast, flooding parking lots, streets and triggering evacuation warnings for low-lying areas. (AP Photo/Pamela Hassell)

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A person walks on Manresa State Beach in Monterey Bay near Watsonville, in Santa Cruz County, Calif., Friday, Dec. 29, 2023. The National Weather Service warns that another round of extremely dangerous surf conditions would return Saturday. (AP Photo/Pamela Hassell)

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People walk on Manresa State Beach as a surfer exits the surf at Monterey Bay near Watsonville, in Santa Cruz County, Calif., Friday, Dec. 29, 2023. The National Weather Service warns that another round of extremely dangerous surf conditions would return Saturday. (AP Photo/Pamela Hassell)

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People walk along the shore after damage from high waves and flooding at Rio Del Mar Beach in Aptos, Calif., Friday, Dec. 29, 2023. Waves overran beaches Thursday on the California coast, flooding parking lots, streets and triggering evacuation warnings for low-lying areas. (AP Photo/Pamela Hassell)

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Trees and debris lies around the public bathrooms from high waves and flooding at Rio Del Mar Beach in Aptos, Calif., Friday, Dec. 29, 2023. Waves overran beaches Thursday on the California coast, flooding parking lots, streets and triggering evacuation warnings for low-lying areas. (AP Photo/Pamela Hassell)

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A view of the damage from high waves and flooding at Rio Del Mar Beach in Aptos, Calif., Friday, Dec. 29, 2023. The National Weather Service warns that another round of extremely dangerous surf conditions would return Saturday. (AP Photo/Pamela Hassell)

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A view from Rio Del Mar Boulevard of the damage from high waves and flooding at Rio Del Mar Beach in Aptos, Calif., Friday, Dec. 29, 2023. (AP Photo/Pamela Hassell)

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Damage from high waves and flooding is seen at Rio Del Mar Beach in Aptos, Calif., Friday, Dec. 29, 2023. The National Weather Service warns that another round of extremely dangerous surf conditions would return Saturday. (AP Photo/Pamela Hassell)

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A woman photographs the high waves amid damage from flooding at Rio Del Mar Beach in Aptos, Calif., Friday, Dec. 29, 2023. (AP Photo/Pamela Hassell)

By MARCIO SANCHEZ and JOHN ANTCZAK

VENTURA, Calif. (AP) — Bulldozers built giant sand berms Friday to protect beachfront homes in one of California’s coastal cities hit hard this week by extraordinary waves generated by powerful swells from Pacific storms.

Dozens of people watched construction of the emergency barriers in the Pierpont area of the city of Ventura, where a rogue wave on Thursday smacked spectators and vehicles as it overran the beach and flowed into a neighborhood.

“We have had water down the lane once before but never like this,” said Karris Kutivan, a 9-year resident of the scenic shoreline city about 60 miles (97 kilometers) northwest of Los Angeles.

“What it has taught me is I want to live by the beach, not on the beach,” Kutivan said.

Eight people were taken to hospitals for treatment of injuries after the Pierpont incident, according to Ventura County authorities, who closed beaches, piers and harbors through Dec. 31.

Similar waves overran beaches elsewhere Thursday on the California coast, flooding parking lots, streets and triggering evacuation warnings for low-lying areas.

The ocean was less violent Friday but the National Weather Service warned that another round of extremely dangerous surf conditions would return Saturday.

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The Los Angeles-area weather office wrote that powerful cyclones over northern Pacific waters were sending 12- to 17-foot (3.6- to 5-meter) swells, creating “tremendous wave energy across coastal waters.”

At some points along California, breaking waves were predicted to reach 25 feet (7.6 meters). Astronomical high tides were adding to a significant risk of more coastal flooding, forecasters said.

“Overall, this is expected to be an exceptional high-surf and coastal flooding event that has not occurred in many years,” the weather service wrote. “Take caution and heed the direction of local authorities and lifeguards. Never ever turn your back to the water as damaging and life-threatening sneaker waves are likely to occur.”

In Hawaii, which also was slammed by the huge swells this week, the weather service downgraded a high surf warning to an advisory Friday. Large breaking waves of 18 to 22 feet (5.5 to 6.7 meters) along some north-facing shores and strong currents will make swimming dangerous, the weather service said.

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AP reporter Jennifer Sinco Kelleher reported from Honolulu.