...Peter J. Mason The inspection of concrete dams, generally on rock or other hard foundations, requires the understanding and interpretation of visual signals and often small movements and behavioural changes. The visual signals may be cracks or perhaps seepages. Behavioural changes may be signalled...

...Mark Morris; Craig Goff The need for a clearer understanding of how both surface and internal erosion processes develop across dams and levees has been at the forefront of research priorities for the last decade. Two events in 2025 gave the opportunity for researchers and practitioners to share...

... consists of Dol-Y-Mynach and Claerwen. Claerwen is the largest and most modern dam in the Elan Valley system holding approximately half of the total storage of the Elan Valley reservoirs. The Elan Cascade includes the submerged Garreg Ddu dam which is used to manage water supply into the Foel Tower...

.... Corresponding author Zoe Wilson (Zoe.Wilson@environment-agency.gov.uk) © 2026 Emerald Publishing Limited 2026 Emerald Publishing Limited Licensed re-use rights only barrages & reservoirs compliance action plans dams proportionate enforcement reservoir regulation risk assessment...

... (dorian.lipin@gmail.com) © 2026 Emerald Publishing Limited 2026 Emerald Publishing Limited Licensed re-use rights only barrages and reservoirs dams flushing gallery gate hydraulic particle size mountain rivers reservoirs river engineering sediments spillway dam water resources water...

...Stuart King SSE operates four reservoirs that had siphons installed in the dams during the original construction. These siphons are provided to increase flood discharge capacity, reducing the flood rise at each of the dams, without significantly increasing the spillweir length. A brief description...

... analysis of the downstream consequence of failure, taking into account the specific critical locations of the embankment identified within the 1D flood model in Step (i). Undertaken through the development of a 2D breach model. barrages & reservoirs dams failure floods & floodworks...

... – siphons are constrained by the maximum negative head within the siphon and inlet submergence effects, and other gravity systems are constrained by the increasing challenge of installing through deeper sections of the dam. However, for an equivalent average drawdown rate, other gravity systems will require...

... and people. The aim is to accommodate multi-functional, nature-rich reservoirs, recognise and reflect what local people value about the place where they live and work, and create resilient landscapes for the future. barrages & reservoirs dams environment landscape reservoirs Many of us...

... on increasing the discharge capacity of the overflow as identified through flood study results to meet wave freeboard requirements, or on implementing additional changes to increase the reservoir storage capacity, in compliance with current UK dam safety requirements. Using four different case studies...

...Quentin Shaw In this article, the author shares his experience of over 40 years in the design and construction of large dams in over 40 countries around the world, focusing on the understanding of what makes a project successful and, more importantly, why success has proved elusive on many projects...

...J. Andrew Charles Failures and serious incidents at dams often lead to demands for improved public safety measures to reduce the hazards posed by the storage of large volumes of water. However, relatively little attention has been given to the issue of liability for the damage resulting from...

... happens, not the likelihood of it happening. barrages and reservoirs dams floods and floodworks safety and hazards To meet the definitions of a high-risk reservoir as given in Section 2C(1), a reservoir must be considered to pose a hazard which could endanger lives if an uncontrolled release...

...Niall Allen; Samuel Tudor The ICOLD 2025 pre-study tour offered a rare opportunity to observe firsthand the engineering achievements along the Yangtze River, one of the most hydrologically significant river systems in the world. The tour included site visits to the Three Gorges Dam, Gezhouba Dam...

...Denis Krutov For new dams on rock foundations, it may be feasible to review sliding safety under a very stringent rules approach. However, the task of identifying the most stringent standard is not always straightforward, as different approaches are seen to apply different criteria, with different...

... of critical geotechnical structures such as embankments, slopes, and dams. Their behaviour is complex, influenced by stress history, depositional environment, and over-consolidation ratio ( OCR ). Conventional analysis methods typically assume homogeneity and uniform stress conditions, which do not represent...

...Aidan Norris This briefing note summarises two bulletins currently being produced by the ICOLD (International Commission on Large Dams) Technical Committee C ‘Chutes, Stilling Basins, Upgrading and Surveillance of Spillway’, which met on 17 May 2025 in Chengdu, China. This note outlines...

... Publishing Limited Licensed re-use rights only barrages and reservoirs dams reservoir incidents safety and hazards It has been long recognised that the reporting of reservoir incidents is of importance to the dams and reservoirs industry. This is because the lessons learnt from...

...Giovani Jordi Bruschi; Vinicius Paiva Guedes; Rafaela de Carvalho Saar; Monica Pessoa Neves Risk evaluation of embankment dams is typically based on slope stability analyses considering rising piezometric levels and their impact on safety factors. However, these methods often overlook internal...

... survive, used for both their original and new purposes. barrages & reservoirs dams history waterways & canals The Worcester and Birmingham Canal was built to link the industrial areas around Birmingham with the River Severn at Worcester. Construction began in the late eighteenth...