King Tide Flooding Closes Pacific Coast Highway in Huntington Beach: Your Guide to the Closure and the Drive

Introduction: The Ocean Took the Road for the Morning

Pacific Coast Highway is a beach road in the most literal sense at Sunset Beach, and on Tuesday morning the beach reminded everyone of it. Exceptionally high king tides, running well above forecast levels, spilled across the low-lying highway in northern Huntington Beach and forced Caltrans to close the road in both directions. Photos from the scene showed residents walking dogs through floodwater on the closed highway.

This is not the bluff country of Big Sur. Between Seal Beach and Huntington Beach, Highway 1 runs flat, straight, and only just above sea level, with homes, harbors, and wetlands pressed close on both sides. When the tide sets records, this is one of the first stretches of famous road in California to go under water.

What Happened: Record Tides, a Widening Closure, and a Warning Through Thursday

The water arrived with the morning high tide on Tuesday, October 27. Caltrans closed Pacific Coast Highway in both directions between Warner Avenue and Seal Beach Boulevard, and also closed northbound lanes between Seapoint Street and Warner Avenue. Huntington Beach had planned a precautionary closure in Sunset Beach, roughly from 8 a.m. to noon, around the peak tide.

The noon plan did not hold as an all-clear. Water kept spilling onto the roadway even after the tide began to recede, and the highway was ultimately closed in both directions between Seal Beach and Huntington Beach. A Caltrans listing later that afternoon still showed a flooding closure from Seapoint Street to Seal Beach Boulevard, advised drivers to use an alternate route, and gave no reopening time. A planned morning window is not proof the road reopened.

The tides behind the closure were historic. On Monday, a gauge at San Pedro reached 8.02 feet, breaking a previous record of 7.93 feet set in January 2005, in records going back to November 1923. On Tuesday morning, the tide at Newport Beach reached a record-setting 8.4 feet. Forecasters attributed the surge to warm ocean water and El Niño conditions pushing sea levels up to about 1.7 feet above predictions in Orange County.

The event is not over. The National Weather Service office for the region, at weather.gov/lox, has kept a coastal flood warning in effect for the Orange County coast through Thursday at 1 p.m., with high morning tides of about 7.5 to 8 feet through Thursday. Flooding also reached the Redondo Beach pier boardwalk and neighborhoods in Long Beach and Newport Beach, where crews ran pumps and built sand berms. Expect the Sunset Beach stretch to be vulnerable again at each morning high tide until the warning expires.

This is the third very different problem PCH drivers have faced in recent weeks. Farther south, a cracked bluff has narrowed the highway in our guide to the Pacific Coast Highway lane closure near Laguna Beach, and farther north, a major rebuild is reshaping the road in our guide to the Pacific Coast Highway rebuild through Malibu. Same famous highway, three separate reasons to check conditions before you go.

The Drive: Seal Beach to Huntington Beach, the Flattest Miles on Highway 1

In normal conditions, this is the easiest driving on the entire Pacific Coast Highway: wide, flat, and straight, with the ocean on one side and harbor channels and wetlands on the other. It is less a cliff drive than a beach boulevard, and that is its charm. Plan the stops around the tide, not against it:

• Seal Beach — start at the north end, where Main Street leads to a classic wooden pier and a compact, walkable beach town. It is the natural turnaround point if the highway closes ahead of you.
• Sunset Beach — the community at the center of this week's flooding, a narrow strip of homes between the highway and Huntington Harbour. On a dry day it is a simple beach stop; this week, respect every barricade and do not park on flooded side streets.
• Bolsa Chica Ecological Reserve and State Beach — just south of Warner Avenue, the wetlands sit directly across the highway from the beach. The official Bolsa Chica State Beach page is the place to confirm parking and beach status, since lots and low paths flood first.
• Huntington Beach Pier and Main Street — the wide, busy heart of Surf City, a few miles south of the closure, with plenty of places to wait out a high tide over coffee or lunch.
• Huntington Harbour — best seen slowly, from its bridges and side streets, where this week's flooding showed how directly the channels connect homes to the ocean.

South of Huntington Beach, the highway continues through Newport Beach toward Laguna Beach, so a through drive is still possible once this segment reopens. Until then, use Warner Avenue or Edinger Avenue east to Interstate 405, then return to the coast south of the closure.

Practical Tips for Driving It Right Now

1. Check live conditions before every trip. Use Caltrans QuickMap for the current State Route 1 closure between Seapoint Street and Seal Beach Boulevard, and check again before heading home, because the flooding follows the tide clock, not the commute clock.
2. Avoid the morning high tide window entirely through Thursday. The closures have centered on the hours around the morning peak tide. An early afternoon drive, after Caltrans confirms the road is open, is a different proposition from one planned for 9 a.m.
3. Never drive through floodwater on PCH or its side streets. Salt water hides depth, curbs, and debris, and it damages vehicles. If the road is barricaded, turn around and take the inland detour.
4. Build the detour into your plan. Warner Avenue east to Interstate 405 gets you around the closed segment without guessing at neighborhood streets, some of which flooded as well.
5. Separate the road plan from the beach plan. Beach lots, harbor walkways, and bike paths can stay flooded after the highway reopens. Confirm the status of the specific beach you want on the day.
6. Protect your car if you are staying on the coast. Move vehicles off low-lying streets in Sunset Beach, Huntington Harbour, and the Balboa Peninsula during the morning tides.

When to Go

For a pleasure drive, wait for the coastal flood warning to expire on Thursday afternoon, then pick a clear weekday and start after the morning tide has fallen. The light on this flat coast is best in the late afternoon. For the long version of the coast drive, save your effort for our guide to Highway 1 through Big Sur, where checking conditions first is just as essential.

King tides return on a predictable cycle each winter, and this coast will flood again at the same low spots. Tide tables are published well in advance, so a driver who checks them can enjoy this road on its many dry, easy days and skip the few mornings a year when the ocean is using it.

The Bottom Line

Record king tides closed Pacific Coast Highway in both directions between Seal Beach and Huntington Beach on Tuesday, the closure outlasted its planned noon end, and a coastal flood warning keeps the same stretch at risk at every morning high tide through Thursday. Check QuickMap, drive around the tide window, and never cross floodwater. Do that, and this flat, beach-level piece of Highway 1 remains what it has always been on a dry day: the simplest great drive in California.