Hydrogen Embrittlement

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3. Should the remaining bolts on the E2 pier manufactured in 2010 be replaced? 20
B1 S1 B2 S3 S4 B3 S2 B4 • 96 bolts manufactured in 2008 shown in red are embedded in the pier. • 192 bolts manufactured in 2010 shown in yellow are not embedded in pier. • 544 bolts manufactured in 2010 shown in green are connected to the OBG. • There are an additional 432 bolts of 1 inch diameter, varying from 2 inches to 2 feet in length, that are internal to the E2 bearing assembly. 21
Page 1 and 2: Briefing on E2 Anchor Bolts - May 8
Page 3 and 4: Pier E2 3
Page 5 and 6: Toll Bridge Program Oversight Commi
Page 7 and 8: FHWA Independent Review The TBPOC
Page 9 and 10: B1 S1 B2 S3 S4 B3 S2 B4 • Bearing
Page 11 and 12: Tension Hydrogen Embrittlement Hydr
Page 13 and 14: Report Recommendation Procurement
Page 15 and 16: 2. What retrofit strategy should be
Page 17 and 18: Option 2 - Steel Saddle 17
Page 19: Selection of Option 2 - Saddle Bot
Page 23 and 24: ASTM Requirements D>2 ½” 2008 E2
Page 25 and 26: Long term stress corrosion suscepti
Page 27 and 28: • Visual inspections of similar b
Page 29 and 30: Other Toll Bridges As part of this

Hydrogen Embrittlement

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