One Corps Serving the Armed Forces and the Nation Mel Price Locks & Dam Miter Gate Inspections Navigation Lock and Dam Inspection and Emergency Repairs Workshop April 2006

One Corps Serving the Armed Forces and the Nation Navigation Lock and Dam Inspection and Emergency Repairs Workshop April 2006

One Corps Serving the Armed Forces and the Nation 3 October 2004 – Auxiliary Lock Downstream Miter Gate

One Corps Serving the Armed Forces and the Nation Auxiliary Lock Downstream Miter Gate

One Corps Serving the Armed Forces and the Nation FLOW IL LEAF MO LEAF Leafs Forced Downstream From Normal Mitered Position

One Corps Serving the Armed Forces and the Nation Initial Inspection Determine scope of damage Gather “forensic evidence”

One Corps Serving the Armed Forces and the Nation Overall Distortion – Approximately 2 Feet

One Corps Serving the Armed Forces and the Nation Local Damage – Miter Ends

One Corps Serving the Armed Forces and the Nation Damage to Gate Anchorages Secondary Anchorage Primary Anchorage

One Corps Serving the Armed Forces and the Nation Primary Anchorage Fatigue

One Corps Serving the Armed Forces and the Nation Secondary Anchorage Deflection

One Corps Serving the Armed Forces and the Nation Miter Block – IL Leaf

One Corps Serving the Armed Forces and the Nation Timber Fender – MO Leaf

One Corps Serving the Armed Forces and the Nation Miter Block – IL Leaf

One Corps Serving the Armed Forces and the Nation Diagonal Failure - Buckled

One Corps Serving the Armed Forces and the Nation Cracked Gusset – IL Leaf

One Corps Serving the Armed Forces and the Nation Cracked Gusset – MO Leaf

One Corps Serving the Armed Forces and the Nation Failed Operating Struts

One Corps Serving the Armed Forces and the Nation Operating Arm Failure Tube Failure Bolts (compression)

One Corps Serving the Armed Forces and the Nation Operating Strut Failure – IL Leaf Failure Bolts (compression) Intact Fractured Strut (tension)

One Corps Serving the Armed Forces and the Nation Failure Bolt (compression) Fractured Strut (tension) Operating Strut Failure – MO Leaf

One Corps Serving the Armed Forces and the Nation Failed Operating Strut

One Corps Serving the Armed Forces and the Nation Impact Marks

One Corps Serving the Armed Forces and the Nation Impact Marks

One Corps Serving the Armed Forces and the Nation Gouged Operating Strut

One Corps Serving the Armed Forces and the Nation Failure Tube Bolts

One Corps Serving the Armed Forces and the Nation Inspection of Leafs On Gate Barge

One Corps Serving the Armed Forces and the Nation Surveying Leaf

One Corps Serving the Armed Forces and the Nation Survey Results – Illinois Leaf 2’ 1’ 1.5’ 0.5’ 2.21’ max deflection

One Corps Serving the Armed Forces and the Nation Survey Results – Missouri Leaf 1.6’ max deflection

One Corps Serving the Armed Forces and the Nation Manlift for Inspection

One Corps Serving the Armed Forces and the Nation Inspection From Manlift

One Corps Serving the Armed Forces and the Nation Deformed Diaphragms Over 2” In Some Locations (most ½” or less)

One Corps Serving the Armed Forces and the Nation Inspections - Leafs Horizontal

One Corps Serving the Armed Forces and the Nation Leafs In Horizontal Position

One Corps Serving the Armed Forces and the Nation Crack at Diaphragm Flanges

One Corps Serving the Armed Forces and the Nation Crack in Girder Flanges

One Corps Serving the Armed Forces and the Nation Torch Cut Hole in Girder Flange

One Corps Serving the Armed Forces and the Nation Inspection of Repairs

One Corps Serving the Armed Forces and the Nation UT Inspection of Diagonal Gusset

One Corps Serving the Armed Forces and the Nation UT Inspection of Diagonal Gusset

One Corps Serving the Armed Forces and the Nation Welding Strut Arm at Service Base

One Corps Serving the Armed Forces and the Nation MT Inspection of Strut Arm at Shop

One Corps Serving the Armed Forces and the Nation UT Inspection of Strut Arms

One Corps Serving the Armed Forces and the Nation UT Inspection of Strut Arms

One Corps Serving the Armed Forces and the Nation UT Testing Of Repaired Cracks

One Corps Serving the Armed Forces and the Nation Diagonal Modification

One Corps Serving the Armed Forces and the Nation Lower Diagonal Gusset

One Corps Serving the Armed Forces and the Nation Stress Relieving Diagonal Gusset

One Corps Serving the Armed Forces and the Nation Top End of Diagonal

One Corps Serving the Armed Forces and the Nation Bottom End of Diagonal

One Corps Serving the Armed Forces and the Nation Bottom End of Diagonal Undercut

One Corps Serving the Armed Forces and the Nation Gudgeon Hood Casting

One Corps Serving the Armed Forces and the Nation Casting Weld Repair Defect

One Corps Serving the Armed Forces and the Nation Stay Tuned……………. Mel Price Lock and Dam Miter Gate Inspections

One Corps Serving the Armed Forces and the Nation Inspections - Other Projects

One Corps Serving the Armed Forces and the Nation Locks 27 - Miter Gate Inspections and Instrumentation

One Corps Serving the Armed Forces and the Nation Locks 27 – Auxiliary Lock Miter Gate

One Corps Serving the Armed Forces and the Nation Cracks in Girder Flanges

One Corps Serving the Armed Forces and the Nation Sill Vertical Diaphragms Bottom Girder Designed as horizontally framed

One Corps Serving the Armed Forces and the Nation Instrumentation of Typical Connection

One Corps Serving the Armed Forces and the Nation Diaphragm Flange Girder Flange Strain Transducer

One Corps Serving the Armed Forces and the Nation Instrumentation Results Stresses Higher in Diaphragm

One Corps Serving the Armed Forces and the Nation Lock 27 Miter Gate Instrumentation Results Diaphragm Flange 8 ksi T Web 4 ksi T Girder Flange 7 ksi T Web 3 ksi C

One Corps Serving the Armed Forces and the Nation Locks 27 - Main Lock – Jan 2003

One Corps Serving the Armed Forces and the Nation Locks 27 - Main Lock – Jan 2003 Failed Diagonal Rods

One Corps Serving the Armed Forces and the Nation Why are rods failing? 1) Cyclic loading (beach marks = fatigue) 2) Bending (Unidirectional - beach marks on one side)

One Corps Serving the Armed Forces and the Nation Instrumentation of Diagonals

One Corps Serving the Armed Forces and the Nation Instrumentation on Diagonals

One Corps Serving the Armed Forces and the Nation Instrumentation Results One Lockage = Many Cycles

One Corps Serving the Armed Forces and the Nation Rope Access Inspections Tainter gates at flood control projects Tainter gates at navigation project Dam bulkheads Miter gates

One Corps Serving the Armed Forces and the Nation Clarence Cannon Dam Spillway and Tainter Gates

One Corps Serving the Armed Forces and the Nation Locks 27 Miter Gate

One Corps Serving the Armed Forces and the Nation Kaskaskia L&D Tainter Gate

One Corps Serving the Armed Forces and the Nation Carlyle Dam Tainter Gate

One Corps Serving the Armed Forces and the Nation Questions?