nssc safety conference 2007 victoria bridge incident grand mira north cape breton county, ns...
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NSSC Safety ConferenceNSSC Safety Conference20072007
Victoria Bridge Incident
Grand Mira NorthCape Breton County, NS
February 12, 2004
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Victoria Bridge IncidentVictoria Bridge Incident
On Thursday, February 12, 2004, Transportation and Public Works, Steel Bridge Crew, had a suspended scaffolding incident resulting in serious injuries to one of our employees.
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Victoria Bridge is located in Grand Mira North just outside of Sydney, NS
Past the Two Rivers Wildlife Park
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DEL Investigators
Suspended Scaffolding
Modified Clamp
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Work Site Setup
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Height of Fall
Ice Covered Mira River
Materials on Ice
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Weather Conditions
Additional Tirfor and Clamp
Ejected Clamp
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Tirfor Winch with Cable
Man Riding Bloc Stop
Swaged Wire Rope
Damaged Safety Latch on Eye Hook
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Debris on Ice
Top Chord Anchor
Strap Anchor
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Bays of Through Truss Bridge
Cross members Ladder was Supported on
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Engineered Anchor
January 27, 1997
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Top Chord Anchor Samples
Destroyed after Incident
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Clamp Type used on Seal Island Bridge in past
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Clamp hooked on flange of bridge Top Chord
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Clamp modified to provide step off from bridge
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Sent out an Alert across province Out-of-Service across province: All
types of equipment involved in incident until root causes determined
Orders to secure equipment directly involved
Orders for various records
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Orders given on:
Anchor points Fall Arrest Equipment Assessment of Suspended Scaffolding
Systems Inspection of Suspended Scaffolding
Systems across the Province
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All Suspended Scaffolding work done by TPW forces stopped across the province
All Suspended Scaffolding components were reviewed across the province
Various equipment was removed from duty and destroyed
Other equipment was sent to approved technicians for inspection and re-certification
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Started to investigate in conjunction with DEL
Constructed Mock-up of bridge section
Experts were brought in for mock-up investigation
TPW instructed to do mock-up without DEL
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DEL Officer
Equipment Lock-up
Investigation on-going
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Charges Laid against both TPW and Supervisor
TPW - 7 charges, April 04, 2005
Supervisor - 2 charges, April 04, 2005
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Various court proceedings starting April 22, 2005
Guilty plea entered by Supervisor on April 06, 2006 to one charge, no evidence given on other charge
Guilty plea entered by TPW on October 10, 2006 to one charge, no evidence given on other 6 charges
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Supervisor - Plead guilty to allowing the use of the modified clamp without certification by a professional engineer
TPW - Plead guilty of not ensuring the modified clamp was certified by a professional engineer
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Supervisor sentence - April 06, 2006
- $1,000.00 Fine- $100.00 Costs- $150.00 Victims Surcharge- Training Program attendance
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TPW’s sentence - October 10, 2006
- $5,000.00 Fine
- $15,000.00 Public Education Trust Fund
- Presentation at 2007 NSSC Conference
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Setup first Suspended Scaffolding Committee - March 23, 2004
Worked with engineering firm to design new equipment
Top Chord Anchor Clamp just one piece designed
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Prototype of new Top Chord Anchor
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Exploded View of Top Chord Anchor prototype
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Load Testing the prototype Top Chord Anchor
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Set up Scaffolding Training Committee - March 03, 2005
Did up Request for Proposal [RFP]
Reviewed proposals
Awarded to New Heights Enterprises
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Training started in Sydney on July 05, 2005
40 hours of training - classroom & hands-on
Sessions: Eastern - 4 Northern -1 Central - 1 Western - 3
Training completed September 30, 2005
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New Clamp Prototype
On-Site Practical Training
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Supervisors took the same training as crew
Hands-on experience
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Simulated on-site conditions
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Installation of Top Chord Anchors as part of training
Use of ladders as part of training
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All trainees were hoisted in their harnesses
Allowed for practical experience in controlled conditions
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Practical training in Rescue Operations
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All trainees went through being rescued
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Training done in 2005 identified additional issues
Third committee formed - January 06, 2006
Meetings held and report forwarded on October 10, 2006
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Additional changes since the Incident: Created new Bridge Maintenance Engineer to
provide technical coordination of the District Bridge Engineers
Changed reporting structure for District Bridge Engineers who now report to the District Director
Clarified District and Head Office roles, responsibilities and accountabilities for bridge maintenance training, supervision, equipment and techniques
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Next Steps:
Bridge Engineers and Supervisors to develop SWP’s and JP’s as needed
Review, do trials, approve new equipment and procedures
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Questions ?
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Thank You !&
Be Safe !
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