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ICOLD Bulletin 147 discusses the upstream and downstream fluvial morphological impacts of reservoir sedimentation and possible mitigation measures, and aims at hydraulic and dam engineers, in particular those with an interest in the sustainable use of reservoirs and river systems.

This update of Bulletin 49A (1986) addresses the need for safe reservoir discharge under a variety of conditions, the dam operator's staffing, evaluation (inspection) of the condition of operating equipment, and operation during unusual or extreme conditions.

ICOLD Bulletin 180 presents the vast experience gained over the past 6 decades by the dam engineering community in the field of dam surveillance by means of 80 case histories. The case histories cover a wide variety of technical aspects and deal with success stories but also incidents, and aim to learn from these practical experiences.

The present Bulletin presents a complete response from the 'Technical Committee of ICOLD on Dams and Water Transfer (CDWT)' to the Terms of Reference. Essentially, it dwells on possible need, potential and problems in water transfers that must be handled to overcome B/C issues faced by needy countries.

The guidelines on mathematical modelling of sediment transport dynamics in reservoirs in this document can be used during the planning and design of new dams, as well as for the management of existing dams.