Bulletin 209 - English
Methods for the improvement of data quality and management of dam performance monitoring data
By the Committee Dam Surveillance
https://doi.org/10.68765/ZKQP5361
Bulletin 211 - English
Hydraulic and structural design of chute spillways with stilling basins and upgrading of spillways
By the Committee Hydraulics for Dams
https://doi.org/10.68765/PFUK8250
Bulletin 212 - English
Surveillance of spillways
By the Committee on Hydraulics for Dams
https://doi.org/10.68765/HAEA9168
Bulletin 207 - English
Extreme flood estimation and associated uncertainty
By the Committee Flood Evaluation and Dam Safety
https://doi.org/10.68765/EZFN9687
Bulletin 182 - English / French
Sediment management in reservoirs: National Regulations and Case Studies
By the Committee Sedimentation of Reservoirs
https://doi.org/10.68765/RLCJ5736
Bulletin 204 - English
Flood Risk Assessment
By the Committee Flood Evaluation and Dam Safety
https://doi.org/10.68765/RXSH5983
Bulletin 210 - English
Dam Surveillance Data and Observations – Effective Diagnostic Analyses to Determine Behaviour Patterns
By the Committee Dam Surveillance
https://doi.org/10.68765/YLSH5002
Bulletin 210 - French
Dam Surveillance Data and Observations – Effective Diagnostic Analyses to Determine Behaviour Patterns
By the Committee Dam Surveillance
https://doi.org/10.68765/SSNY1265
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2026 ANCOLD Conference
Nipaluna Hobart, Lutruwita Tasmania
26 - 28 October 2026
COP31 – UN Climate Change Conference
Antalya EXPO Center, Antalya, Türkiye
9–20 November 2026
ICOLD WEBINAR #4: Environmental Sustainability of Dams & Reservoirs
November 25, 2026
1pm - 3pm (CET)
Free event
2026 United Nations Water Conference
ADNEC Exhibition Centre, Abu Dhabi, United Arab Emirates
8–10 December 2026
95th ICOLD Annual Meeting – Daejeon 2027
Daejeon Convention Center, Daejeon, Republic of Korea
21–28 May 2027
The world's best databasis on dams, established upon the national inventories sent by the member countries of ICOLD. The Register is continuously updated. It includes more than 55,000 Dams.
The Technical Dictionary on Dams provides translation of more than 3000 technical terms in the field of Dams (with Sketches, for certain terms), in the following languages: English 
, French 
, German 
, Spanish 
, Italian 
, Portuguese 
, Swedish 
, Slovene 
, Finnish 
.
Find the Dictionary by clicking here
ICOLD issues a new Bulletin on safe passage of extreme floods, November 2012
Extreme floods are regularly making news headlines and again recently in Nigeria or India. As the main professional organization on dams, ICOLD is of course very concerned about the implications of floods for dams security. The last technical bulletin (#142) just published by ICOLD is precisely dealing with the safe passage of extreme floods.
The following subjects are addressed in this Bulletin:
- Confidence Level Assessment of Design Flood Estimates
- Strategy for planning spillway arrangements with emphasis of floods exceeding design flood
- Project facilities means to deal with floods in excess of design flood
- Operational procedures and flood warning system
- Cases studies: some experiences on safe passage of extreme flood in China, Canada and Brazil
The adequate management of floods is of fundamental importance either for dam safety and for the security these dams should provide. According to statistical overviews (ICOLD, 1995 and 2003), in recent times flood events have been the main natural hazard responsible for human and economic losses and one of the main reasons for dam failures. This is particularly true for small dams with heights 30 meters or less.
Bulletin 142 is available at a price of 60 Euros per copy (plus VAT at 5.5 per cent for France and EEC purchasers who have not given their VAT identification number).
192 pages, bilingual English/French, in 9 chapters. Illustrated cover.
About ICOLD
The International Commission on Large Dams (ICOLD) was founded in 1928 to provide a forum for discussion and for the exchange of knowledge and experience in dam engineering for engineers and others concerned with the development of water resources.
With a present total of 95 member countries, ICOLD leads the profession in ensuring that dams are built and operated safely, efficiently, economically, and with a minimum environmental impact. For more than 20 years, ICOLD has been particularly concerned to enhance the profession's awareness of the social and environmental aspects of dams and reservoirs, and to broadening its perspective in such a way that these aspects receive the same attention and conscientious treatment as the technical aspects.
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