Engineering Expert On San Bruno Pipeline

Construction TeamSFExaminer.com reports: When a natural-gas pipeline exploded in San Bruno, it split right up the seam of a weld that, according to Pacific Gas & Electric documents, did not exist.  The existence of a weld on the pipeline is significant since in some cases, federal regulations require pipelines with seams to be more stringently monitored.

Investigators from the National Transportation Safety Board released an update last week about their inquiry into the Sept. 9 explosion, in which a 30-inch transmission pipeline exploded, killing eight people, wounding dozens more and destroying or damaging more than 50 homes.

The pipeline did have a weakness along the weld, according to the report and some were only welded from the outside, according to the NTSB findings.  Glen Stevick, a pipeline engineering expert from Berkeley, states that a pipeline welded from just one side of the pipe is likely to be weaker than one welded from both sides.

Read more: sfexaminer.com.

About Karen Olson

Information Professional with twenty years experience in legal, public record, and business research. Fifteen years law firm experience.

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