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AUV Fixed With HD Cameras Inspects Inside of Water Pipeline

Hetch Hetchy water pipeline runs on the floor of San Francisco bay

It was inspection time for the two-year old, five-mile long Hetch Hetchy water pipeline running below the floor of San Francisco’s Bay.

According to KNTV San Francisco, instead of draining the pipeline of water so human inspectors from the city’s Public Utilities Commission could survey for any damages, an autonomous underwater vehicle fixed with three HD camera’s was sent down to do the dangerous inspection work.

Over the course of two-days, inspectors viewed transmitted video of the walls of the pipe, looking for any cracks, build up or debris. No defects were found during the inspection.