TYPE YOUR PAPER TITLE HERE (ARIAL 14 BOLD) ABC Jones1, CDE Smith2, and XYZ Moosa3 1. Department of Civil Engineering, University of Stellenbosch, Stellenbosch, South Africa 2. Company X, Stellenbosch, South Africa 3. Company Y, Bloemfontein, South Africa ABSTRACT (ARIAL 10) Paragraph-style text. Paragraph-style text. Paragraph-style text. Paragraph-style text. Paragraph-style text. Paragraph-style text. Paragraph-style text. Paragraph-style text. Paragraph-style text. Paragraphstyle text. Paragraph-style text. Not more than 200 words. (Arial 10) Use this as a template. Submit your Abstract via the online Abstract and Paper Management system on the website. Topics Indicate the main topic of your paper by an X (only one category) 1. Main Topic Social and environmental impacts and mitigation measures; 2a Advances in the rehabilitation of dams and appurtenant works to extend their service life: Improving spillway capacity and flood hydrology determination 2b. Advances in the rehabilitation of dams and appurtenant works to extend their service life: Structural improvements to mitigate the effects of alkali aggregate reaction, internal erosion potential, foundation failure; 3. Innovative river basin management including the optimisation of the operation of dams; 4. Reservoir sedimentation and management; 5. The state of the art of the tailings dams for their complete lifespan; 6. Strategies for proper surveillance of dams; 7. Sustainable hydropower development in developing countries; Presenter (Name): The presenter is a Young Engineer (35 year and younger): 1 Yes/No