A working group formed within the PIANC Environmental Commission is developing a standard of practice to support ports and other public and commercial navigation interests in managing environmental risks associated with navigation infrastructure projects. Managing environmental risks from navigation infrastructure involves economic and environmental costs, and is complicated by the diverse range of policies, perspectives, risk attitudes and personal values that influence decision-making. The report will provide a robust yet practical approach to risk management decision-making for the broad range of environmental risks associated with navigation infrastructure. Effectively managing infrastructure project risk must consider multiple physical, chemical, biological, and socioeconomic processes that can span broad spatial and temporal scales. Understanding and clearly articulating uncertainties related to these processes is essential to developing projections regarding future performance of risk management actions and effective adaptive management strategies. An overview will be provided of the structured management process through which actions for reducing environmental risks are identified, evaluated, selected, and implemented. Uncertainty (e.g., short-term infrastructure operations), long-range risks (e.g., climate change), residual risk, resiliency of natural features and the role of sustainability and life-cycle analysis in risk management will be discussed The approach is compatible with PIANC’s Working with Nature philosophy, taking into account existing approaches and current best practices worldwide.