ABSTRACT

TABLE OF CONTENTS 1. Q110 – SUBTOPICS………492 2. BY WAY OF INTRODUCTION………492 3. ICOLD CONTRIBUTION………495 4. RELATED ICOLD's BULLETINS………496 4.1. B131 Role of dams in flood mitigation………496 4.2. B156 Integrated flood risk management………497 4.3. B170 flood estimation and dam safety………497 4.4. B197 Dam breach flood consequence assessment………498 4.5. B203 Best practices for achieving reliability of flood discharge gates………498 4.6. B204 flood risk assessment………498 5. Hydrological safety*………499 5.1. Standards and regulations and national current approaches………499 5.1.1. Risk assessment at national scale in Spain………500 5.1.2. French management………501 5.1.3. Japanese recent cases………501 5.1.4. Spatial and temporal extreme precipitation in China………501 5.1.5. Extreme events on dam disaster in China under climate change………502 5.2. Re-evaluation of extreme floods………502 5.3. Design event-based precipitation-runoff modeling………504 5.4. New current trend………505 5.5. PMF………505 5.6. Australian enveloping curves………506 5.7. An innovative methodology (France)………506 5.8. Necessity of more data………507 5.9. Data series extension: Paleofloods………507 5.10. Regional flood frequency analysis………508 5.11. Synthetic generation………508 5.12. Conceptual models with physical basis………509 5.13. Stochastic transposition………510 5.14. Climate change impact………514 5.15. Uncertainty………516 6. Acting facing extremes………516 6.1. Spillways………517 6.1.1. Drin river basin………517 6.1.2. Regajo dam………518 6.1.3. Structural review in France………519 6.1.4. Tragedy in Italy………519 6.2. Labyrinths - PKW Spillways………520 6.2.1. Southafrican cases………520 6.2.2. French and vietnamese cases………521 6.2.3. A singular swedish project………522 6.3. Overtopping………522 6.3.1. Chinese contribution to CMD………523 6.4. Energy dissipation………524 6.4.1. Kariba dam………524 6.5. Routing floods and peak attenuation………525 6.6. Temperature………525 6.7. Landslides………526 6.8. Dam management………527 6.8.1. Advances in dam break and wave propagation models………528 7. Non-structural measures………530 7.1. Early warning and emergencies………530 7.2. Hydrological alert………531 7.3. Hydraulic alert………531 8. Levees………532 8.1. Hazard creeping………532 8.2. Levees (R12)………533 9. Concluding remarks………534 9.1. Our challenges………535 9.2. World declaration on dam safety, 2019: risk zero does not exist………536 9.3. World declaration 2024………536 9.4. Final words………536 References………537 Papers Q110………537 Other references………540 ICOLD bulletins and institutional documents………541