Grouting in dams - best practice guidance (RP1039)

Grout injection methods are usually employed to provide a seal or barrier and can be used in the body shoulders or foundations of a dam or in the natural ground underlying it for the purpose of providing water tightness.

Guidance is presently disparate with a non-UK focus. There is a clear need for a UK-centric reference standard for grouting in dams and other similar water retention structures. The British Dams Society (BDS) and Reservoir Safety Advisory Group (RSAG) have recognised this need for over a decade. 

Given the importance of the topic to be addressed; CIRIA with the support of the UK’s owners, operators and other key stakeholders is proposing to develop a best practice guidance report meeting the needs of the reservoir dam safety and inspection community who are responsible for dam rehabilitation works.

This project will provide comprehensive guidance on the subject recognising that the long history of dam construction in the UK has resulted in many forms of design, construction and maintenance evident today. In more recent years new methods have been developed of, for example, forming cut-offs to a variety of depths in a variety of materials. In addition there have been advances in the development of grout materials and grouting techniques. 

Project status CIRIA is currently engaging stakeholders to secure funding support for the project.

Project funders:
Environment Agency, Dwr Cymru Welsh Water, Northern Ireland Water, Northumbrian Water, Scottish Water, Severn Trent Water, South West Water, Thames Water, United Utilities, Yorkshire Water Services. 

Project contributors:
Arup, Bristol Water, Canal and River Trust, Scottish Canals

Research Team:

Atkins, Bachy Soletanche


Further information

For more information and to get involved in the update, please contact Kieran Tully.

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Kieran Tully, Associate Director
020 7549 3300