JovoCreek Bridge Collapse Lessons Learned - PDF document

1 JovoCreek Bridge Collapse Lessons Learne
JovoCreek Bridge Collapse Lessons Learned Background: Contract Bridge design purchased by BCTS as part of Bill 28 Advertised under contract –tenders above Ministry Entered into a purchase agreement with the Bill 13 contractor for TFL 25Purchase Agreement required agreement holder to provide a crossing assuranc

2 e statement for an L165, 9m span, log st
e statement for an L165, 9m span, log stringer bridge Background: ImplementationPurchase Agreement Holder subcontracted professional oversight of the bridg�e to an RPF = Coordinating Registered Professional (CRP)BCTS assigned EMS conformance duties to an Engineering Implementation contractor Contractor expre

3 ssedconcerns about stringersizes; these
ssedconcerns about stringersizes; these concernswere not clearlyThe CRP signed-off onstructure Background: ImplementationDuring TSL operations, the bridge failed on the grapple yarder’s third crossing Background: InvestigationBCTS conducted an EMS investigation into the collapseA number of factors likely con

4 tributed to the failure, however a prima
tributed to the failure, however a primary factor was undersized stringers for the appropriate standards of practiceWorkSafeBCissued orders againstBCTS and also directly against twoof its employeesThe Ministry engaged legal counselAll orders were rescinded after a WorkSafeBC review board hearing involving several m

5 inistry staff and experts Key LessonsPro
inistry staff and experts Key LessonsProfessional RelianceConstruction ConsiderationsConstructionCertificationSafety Lessons in event of an incidentActions in the event of a failureInvestigation in the event of a failureLegal ConsiderationsContractualProfessional / personal Professional RelianceTo ensure a professi

6 onal is accountableProject objectives mu
onal is accountableProject objectives must be clearly delineatedTransfer and acceptance of responsibility must be clearly documented ie. acceptance of the role of CRP and sealing of the Crossing Assurance statement and as built drawingsDue diligence includes evaluating whether the engaged professional is qualified

7 for the taskDue diligence is an accepted
for the taskDue diligence is an accepted defence against a charge of negligenceProfessionals will be held accountable for their actions as indicated by ABCFP discipline findings in this case Recommendations: Professional RelianceDocument that engaged Professionals are truly qualified based on training and experienc

8 eEnsure project objectives and the role
eEnsure project objectives and the role of the professional are clearly identified Document the professional’s acceptance of the projects objectives and their role as CRPConform to the APEGBC/ABCFP CrossingPractices GuidelinesEnsure dissenting professional opinions Recommendations:Design ConsiderationsEnsure s

9 taff are aware of the resources availabl
taff are aware of the resources available Provincial Engineering Manual Chapter 4Ministry specialists (e.g. Bridge Engineer)Where possible designate a ministry bridge engineer as the CRPAt a minimum use Ministry bridge engineers to provide project guidance and reviewHave bridge designs reviewed by Ministry bridge D

10 esign drawings must conform with the Pro
esign drawings must conform with the Provincial Engineering Manual and include specific design aids Recommendations:ConstructionAny significant variation from the approved design during construction must be reviewed and approved by the MFR Contract Representative Recommendations:ConstructionStaff should familiariz

11 e themselves with Engineering Structure
e themselves with Engineering Structure Load Ratings Bending Force Effect (KN*m)Bridge Span (metres)Bending Force Effects Vs Spanfor Madill 144 and BCFS L-165 Madill 144 = 115,260 KG BCFS L-165 = 149,700 KG Recommendations: CertificationA CRP signed and sealed CrossingAssurance Statementmust accompany the complet

12 ed structure Recommendations: Certificat
ed structure Recommendations: CertificationAs built documentation includes:As built drawingssigned and sealed by the CRPamended to reflect design changes and modified to indicate variance from the original design for site conditionsIncluding the design aids that were usedInclude construction records such as log str

13 inger dimensions, pile driving records a
inger dimensions, pile driving records and concrete Recommendation: CertificationAs built drawings must:show the as constructed locations, dimensions, and elevations on the general arrangement drawingsmust be amendedchanges andfor site conditions Recommendation:Actions in the Event of Bridge FailureIn the event of

14 a bridge collapse WorkSafeBC and the Mi
a bridge collapse WorkSafeBC and the Ministry must be notified by the following parties: WorkSafeBCThe employerRoad Use Permit holder Road Steward (BCTS or Operations Division)Ministry of Forests and RangeBCTS or Operations Division –Provincial Safety Initiatives ManagerEngineering Branch, Field Operations Di

15 vision –Chief EngineerEngineering B
vision –Chief EngineerEngineering Branch, Field Operations Division –Engineering Group Leader for the Region Recommendation:Investigation in the Event of Bridge Failure -Safety Investigation and TeamRequired under the Workers Compensation An EMS investigation is not sufficient to meetMust be conducted by

16 The tenure holder (RP or RUP)The Ministr
The tenure holder (RP or RUP)The Ministry investigation team must include a professional engineer familiar with the type of structureThe report must capture the chain of events and facts relevant to the Prior to release, the Investigation Report must be reviewed by the Ministry Safety staff andthe Chief EngineerOnc

17 e approved the report will be released t
e approved the report will be released to WorkSafeBC by the DM Recommendation:Investigation in the Event of Bridge Failure –Management of the Site:Conduct works to ensure the safety of workers, the public and protect the environmentfailure with photos and observations immediately and throughout theprocess if

18 the site is disturbed Recommendation:Inv
the site is disturbed Recommendation:Investigation in the Event of Bridge Failure –Management of the Site:To facilitate evaluation of the reasons for failure provide anopportunity for the investigationteam, including the professionalengineer, to review the site withIf structural elements are moved wayNumber co

19 mponents to allowreconstruction of the f
mponents to allowreconstruction of the failedstructure Legal Considerations:Contract LiabilityNo matter what form of contractual relationship, WorkSafeBCwill likely view the Ministry as the ownerThe WorkSafeinvestigation will review construction, inspection and maintenance practices prior to the collapse Legal Cons

20 iderations:Employee LiabilityWorkSafeBCc
iderations:Employee LiabilityWorkSafeBCcan / will make orders against ministry employeesWorkers cannot receive administrative penaltiesWorkers can be prosecuted under the Criminal Code of Canada where negligence is evidentThe ministry will stand behind staff where they follow established safety protocols and practi

21 ce Employees are bound by the Indemnity
ce Employees are bound by the Indemnity sections of their collective agreements Wrap UpProfessional RelianceConstruction ConsiderationsConstructionCertificationSafety Lessons in event of an incidentActions in the event of a failureInvestigation in the event of a failureLegal ConsiderationsContractualProfessional /