Briefing: Workshop report: ICOLD 2025, Chengdu, China: Technical Committee C: chutes, stilling basins, upgrading, and surveillance of spillways

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 the progress being made on the two new bulletins, one on the design and upgrading of chutes and stilling basins, and the other on surveillance of spillways.