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U.S. Department of Energy
Office of Scientific and Technical Information

Penstock inspection and safety assessment program: Big Thompson Powerplant Colorado-Big Thompson Project, Colorado. Review report, Great Plains region

Technical Report ·
OSTI ID:518743
On February 26-28, 1997, and June 16-17, 1997, the Big Thompson penstock was inspected. During the exam the following tasks were performed: (1) The condition of the exposed exterior coating and the interior lining of the penstock was inspected; (2) The wall thickness of the steel penstock was determined by ultrasonic testing; (3) Appurtenances where the penstock and piping connected to the penstock change in diameter or where the water flow changes in direction were inspected; (4) Joints, piping connections, and various associated operating equipment (gates, valves, etc.) were inspected; (5) Load rejection tests, unwatered governor testing, and emergency gate closure tests were performed.
Research Organization:
Bureau of Reclamation, Denver, CO (United States). Technical Service Center
OSTI ID:
518743
Report Number(s):
PB--97-185920/XAB
Country of Publication:
United States
Language:
English

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