A large piece of construction machinery fell into a dredged area of the San Francisco Bay near Bair Island on Monday afternoon.
A piling machine with a 60-foot mast overturned on its side at about 4 p.m. while work was being done to install a 48-inch sewage transmission pipeline, South Bayside System Authority Manager Dan Child said. No one was injured in the incident, Mr. Child said.
The mast landed outside the construction zone, but did not come in contact with sensitive habitat in the marsh area of Bair Island, Mr. Child said. A small amount of diesel fuel leaked onto soil, which was cleaned up and removed from the site.
On Tuesday afternoon crews continued to remove the fallen equipment. Work on the pipeline replacement had been temporarily suspended.
The pipeline installation near Bair Island is part of a $45.5 million project to replace a portion of aging sewer main that runs between Menlo Park and a treatment facility in Redwood Shores.