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Mel Price Locks & Dam Miter Gate Inspections

Mel Price Locks & Dam Miter Gate Inspections. Navigation Lock and Dam Inspection and Emergency Repairs Workshop 18 - 20 April 2006. Navigation Lock and Dam Inspection and Emergency Repairs Workshop 18 - 20 April 2006. 3 October 2004 – Auxiliary Lock Downstream Miter Gate.

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Mel Price Locks & Dam Miter Gate Inspections

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  1. Mel Price Locks & Dam Miter Gate Inspections Navigation Lock and Dam Inspection and Emergency Repairs Workshop 18 - 20 April 2006

  2. Navigation Lock and Dam Inspection and Emergency Repairs Workshop 18 - 20 April 2006

  3. 3 October 2004 – Auxiliary LockDownstream Miter Gate

  4. Auxiliary Lock Downstream Miter Gate

  5. Leafs Forced Downstream From Normal Mitered Position IL LEAF MO LEAF FLOW

  6. Initial Inspection • Determine scope of damage • Gather “forensic evidence”

  7. Overall Distortion – Approximately 2 Feet

  8. Local Damage – Miter Ends

  9. Damage to Gate Anchorages Secondary Anchorage Primary Anchorage

  10. Primary Anchorage Fatigue

  11. Secondary Anchorage Deflection

  12. Miter Block – IL Leaf

  13. Timber Fender – MO Leaf

  14. Miter Block – IL Leaf

  15. Diagonal Failure - Buckled

  16. Cracked Gusset – IL Leaf

  17. Cracked Gusset – MO Leaf

  18. Failed Operating Struts

  19. Operating Arm Failure Tube Failure Bolts (compression)

  20. Operating Strut Failure – IL Leaf Failure Bolts (compression) Intact Fractured Strut (tension)

  21. Operating Strut Failure – MO Leaf Failure Bolt (compression) Fractured Strut (tension)

  22. Failed Operating Strut

  23. Impact Marks

  24. Impact Marks

  25. Gouged Operating Strut

  26. Failure Tube Bolts

  27. Inspection of Leafs On Gate Barge

  28. Surveying Leaf

  29. Survey Results – Illinois Leaf 2.21’ max deflection 2’ 1.5’ 1’ 0.5’

  30. Survey Results – Missouri Leaf 1.6’ max deflection

  31. ManliftforInspection

  32. InspectionFrom Manlift

  33. Deformed Diaphragms Over 2” In Some Locations(most ½” orless)

  34. Inspections - Leafs Horizontal

  35. Leafs In Horizontal Position

  36. Crack at Diaphragm Flanges

  37. Crack in Girder Flanges

  38. Torch Cut Hole in Girder Flange

  39. Inspection of Repairs

  40. UT Inspection of Diagonal Gusset

  41. UT Inspection of Diagonal Gusset

  42. Welding Strut Arm at Service Base

  43. MT Inspection of Strut Arm at Shop

  44. UT Inspection of Strut Arms

  45. UT Inspection of Strut Arms

  46. UT Testing Of Repaired Cracks

  47. Diagonal Modification

  48. Lower Diagonal Gusset

  49. Stress Relieving Diagonal Gusset

  50. Top End of Diagonal

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