Pipeline partnership

“Big Stan”—the world's largest vertical drilling machine—drills a 30-foot-diameter shaft 100 feet deep for the 700-foot-long tunnel beneath the Russian River. Photo: CH2M Hill

Sensors and isolation valves at the faults will shut down the pipeline if an earthquake of magnitude 5.5 or greater occurs. Photo: CH2M Hill

The pipeline heads through a narrow construction corridor along the electrical company's easement, directly up the ridgeline in the environmentally sensitive Audubon Sanctuary while the road lies about a half mile away. Photo: City of Santa Rosa

Former Santa Rosa mayor and current city councilwoman Janet Condron officially breaks ground for the pipeline in June 2000.

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