Risk-Informed Approach to Penstock Safety - Pat Regan

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Pho<strong>to</strong> – Shoshone Ruptured Pens<strong>to</strong>ck
Aging/Deterioration � Lack of Maintenance � Erosion of invert � Stress-Corrosion Cracking � Cavitation � Acidic Soil
Page 1 and 2: Risk-Informed Approach to Penstock
Page 3 and 4: FERC Database � Geotechnical Issu
Page 5 and 6: FERC Penstock Data ARO CRO NYRO PRO
Page 7 and 8: Photo - Caribou PH
Page 9 and 10: Photo - Vacuum - Equipment Failure
Page 11 and 12: Photo - Lapino
Page 13: Photo - Oak Grove Flowline Patch an
Page 17 and 18: Photo - Wood Stave Soaker Hose - Ma
Page 19 and 20: Photo - Forged Weld Material Degrad
Page 21 and 22: Photo - Balch PH Crack Due To Stres
Page 23 and 24: Photo - Big Creek Collapsed Crib
Page 25 and 26: Photo - Big Creek - Cracked Saddle
Page 27 and 28: Flood � Photo of Power Creek Buck
Page 29 and 30: � Reconstruction � Penstock �
Page 31 and 32: Risk-Informed Approach to Penstock
Page 33 and 34: R&D Program � Establishment of pe
Page 35 and 36: Risk Assessment Methodology � Foc
Page 37 and 38: � Geotechnical � Hydrologic �
Page 39 and 40: Name A1 A2 A3 Cost Spreadsheet C1 -
Page 41 and 42: Typical probability density functio
Page 43 and 44: Rank Facility Critical Hazard Top 1
Page 45 and 46: Consequences of Penstock Failure
Page 47 and 48: Things to Consider � Appropriate
Page 49 and 50: Key Inspection Items � Geotechnic
Page 51 and 52: Risk Reduction
Page 53 and 54: Risk Reduction � Tinizong Powerho
Page 55 and 56: Risk Reduction � Biasca TSV Chamb
Page 57 and 58: Caribou 2 Penstock Caribou 2 PH Car
Page 59: Thoughts � Risk can help you make

Risk-Informed Approach to Penstock Safety - Pat Regan

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