A Simple Method of Risk/Hazard Assessment in …...Dr. Luis. A. Prieto-Portar, Piedroba Marine...
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“A Simple Method of Risk/Hazard Assessment in Dredging” Thomas M. Verna and Dr. Luis. A. Prieto-Portar October 23, 2012
Transcript of A Simple Method of Risk/Hazard Assessment in …...Dr. Luis. A. Prieto-Portar, Piedroba Marine...
“A Simple Method of Risk/Hazard Assessment in Dredging”
Thomas M. Verna and
Dr. Luis. A. Prieto-Portar
October 23, 2012
Process Hazard Analysis (PHA)• PHAs:
– Risk Assessment Tool– Defines the Activity or Work to be Performed– Identifies Hazards – Establishes Controls to Reduce the Hazard to an
Acceptable Risk Level– Living Document
• Changes with Site Conditions or Operations• Changes of competent/qualified personnel
for USACE, EM 385-1-1, 01.A.13.a states:
15 Sep 2008
Activity Hazard Analysis shall define the activities being performed and identify the work sequences, the specific anticipated hazards, site conditions, equipment, materials, and the control measures to be implemented to eliminate or reduce each hazard to an acceptable level.
Process Hazard Analysis (PHA) Development
1. Define features of work2. Identify hazards for each feature3. Establish controls4. Identify the competent/qualified personnel5. Risk assessment (probability/severity)6. Equipment, Training & Inspection
The Dredging Risk Matrix
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Probability: How many times that risk event can occur, or likelihood of the hazard to cause a incident, near miss, or accident
Severity: The impact upon the project, or outcome/degree of the incident, near miss, or accident
Risk Factors
Risk Assessment Code(RAC)
Probability: Occasional
Risk Assessment Code (RAC)
• Moderate Risk (M)• Identify (M) as RAC for the hazard on AHA• Repeat RAC process for each hazard
Severity: Marginal
M
Risk Mitigation
Red
Unacceptable; must be reduced.
Yellow
Reduce if feasible; proceed with caution.
Green
Proceed and keep monitoring.
Conclusion
• Dredging and marine construction work is inherently dangerous
• PHAs are a risk management tool to help identify hazards or risks and formulate controls to reduce the hazard to an acceptable risk level
• Communicate at all levels• PHAs shall be reviewed and modified as work
progresses • The Risk Matrix is a simple, visual method used by all
to reduce risk• Safety requires a TEAM EFFORT!
Questions ?Comments !
Contacts:Thomas M. Verna, USACE Institute for Water Resources, Alexandria, VAp:703-428-8562, email: [email protected]
Dr. Luis. A. Prieto-Portar, Piedroba Marine Construction, Miami, FLp: 305-972-2779, email: [email protected]
