Risk Management for Dam Rehabilitation Projects-PPT Presentation

PPT Presentation

Pdf Summary

The presentation argues that successful dam rehabilitation requires formal, continuous risk management shared by owners, engineers, and contractors. It highlights a lesson from past dam failures: geological conditions and design decisions can combine to permit failure, while inadequate documentation of design problems and the reasons for selecting or rejecting alternatives makes decisions difficult to trace.<br /><br />Risk management should begin during planning and continue through commissioning and operation, as project conditions and approaches change. Design and construction teams should work together to build a shared understanding, identify concerns, and develop solutions. Risk is an uncertain situation or event involving something of human value, and it can have desirable or undesirable outcomes, with varying consequences.<br /><br />The recommended process has four stages: identify and categorize risks, analyze them, mitigate them, and monitor and update them. Risks may involve technical matters—such as hydrology, seismicity, geology, site conditions, and design errors—as well as contracting, construction, schedule, safety, environmental, regulatory, staffing, access, and security issues.<br /><br />A shared, regularly updated risk register is a central working tool. It records each risk, its likelihood and severity, responsible party, mitigation timeline and actions, and approximate cost. Examples from the Isabella Dam Safety Modification project illustrate how risks can be categorized by status, probability, impact, and time horizon, then discussed regularly.<br /><br />Risk responses include avoiding a risk by changing scope or methods, mitigating it through design or procedural changes, transferring responsibility to another party, or accepting it when it lies outside the team’s influence. Because risks can affect project scope, schedule, and budget, anticipating conditions, communicating openly, and managing surprises are essential to successful rehabilitation.

Keywords

dam rehabilitation

risk management

risk register

geological conditions

design decisions

dam safety

construction risks

project planning

mitigation strategies

Isabella Dam