California oil spill: Evidence suggests anchor pulled pipeline ‘like a bow string’

California oil spill: Evidence suggests anchor pulled pipeline ‘like a bow string’


LONG BEACH, Calif. — Evidence emerged Tuesday that a ship’s anchor snagged and dragged an underwater pipeline that ruptured and spilled tens of thousands of gallons of crude oil off Southern California, an accident the Coast Guard acknowledged it did not investigate for nearly 10 hours after the first call came in about a possible leak.

The pipe was split open and a nearly mile-long section apparently pulled along the ocean floor, possibly by “an anchor that hooked the pipeline, causing a partial tear,” federal transportation investigators said.

“The pipeline has essentially been pulled like a bow string,” said Martyn Willsher, CEO of Amplify Energy Corp., which operates the pipeline. “At its widest point, it is 105 feet (32 meters) away from where it was.”

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Huge cargo ships regularly cross above the pipeline as they head into the massive Los Angeles-Long Beach port complex. They are given coordinates where they are to anchor until unloading.

Even when anchored, cargo ships continually move from shifting winds and tides. If a ship fails to properly set its anchor in the ocean floor, those forces of nature come into play and can push the ship and drag the anchor along the bottom, potentially catching anything in its way, said Steven Browne, a professor of marine transportation at California State University Maritime Academy.

Anchors on large ships can weigh 10 tons or more and are attached to hundreds of feet of thick steel chains. “Whatever the anchor gets fouled on will come along with the ship,” Browne said.

Amplify Energy Corp. CEO Martyn Willsher said the anchor caused the pipeline to be “pulled like a bow string.”AP Photo/Stefanie Dazio

The spill sent up to 126,000 gallons (572,807 liters) of heavy crude into the ocean off Huntington Beach. It then washed onto miles of beaches and a protected marshland.

The beaches could remain closed for weeks or longer, a major hit to the local economy. Coastal fisheries in the area are closed to commercial and recreational fishing. On shore, animals rescuers have been pleasantly surprised to find few birds covered in oil.

The time of the spill was still unclear Tuesday, and there was no indication whether investigators suspect that a particular ship was involved.

Democratic Congresswoman Katie Porter, a Democrat who chairs the oversight and investigations subcommittee of the House Natural Resources Committee, said the panel would investigate the incident.

“We

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