2014 – Innovative Curtain Solution for an Environmental Issue

Guresh Ahuja,  Brian Cooper, Olaf Rutgrink and Andrew Thomson

This paper presents details of the State Water Corporation of NSW Australian first temperature control curtain project aimed at dealing with the environmental issue of cold water pollution in dam offtakes. This is a key project focused on dealing with a known environmental issue and reflects changing environmental and social expectations for dam operators. In the concept phases this project was part of the NSW Rivers Environmental Restoration Program (RERP) sub-program ‘better delivery of environmental water’.

The paper presents the development of the design concept including early concept screening and selection, scale model testing, concept design development, hydrodynamic, structural and computational fluid dynamic analyses leading to the final design that has now being constructed. The concept design work was completed in 2011 and following a tender process a design and construct contract was let for the detailed design and construction of the temperature control curtain system. This phase of the work was recently completed and the temperature control curtain is now fully operational. The actual performance and effectiveness of the temperature control curtain will only become evident after a few years of operation and will also hinge on the degree of stratification in the dam.




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