Bechtel pipeliners completed for Pacific Gas Transmission Company and its parent company, Pacific Gas and Electric Company, a massive expansion of the natural gas pipeline that runs from Idaho’s border with British Columbia to central California.
From one end of the 800-mile (1,300-kilometer) line to the other, project staff took extraordinary measures to protect the environment—from worker education and special technologies to revegetation programs and fishery-enhancement measures.
The Bechtel team laid 684 miles (1,100 kilometers) of 42-inch- (107-centimeter-) diameterpipe and 110 miles (177 kilometers) of 36-inch- (91-centimeter-) diameter pipe from the U.S.—Canadian border south to Fresno County in California.
Existing facilities at 15 compressor stations and three meter stations were modified and expanded, and a new compressor station built. The route passed through heavily wooded forests, steep mountain slopes, upland rolling hills, low-lying delta areas, and many miles of volcanic rock.