SRG Global is an ASX listed diversified infrastructure services company that was born out of Australia’s greatest engineering challenge, the Snowy Mountains Hydro-electric Scheme, in 1961.
If it’s technical or complicated, and it has to be done right the first time, we’re the people for you. Learn about how we make the complex simple.
We are proud to be a key partner in the successful delivery of critical services to our blue-chip clients in major industries across the entire asset life cycle of engineer, construct and sustain.
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Our Work
South Africa
Group Five
Water Infrastructure
Engineering & Construction
Structural Strengthening Work, High-Capacity Permanent Anchors
SRG Global played a key role in upgrading and strengthening Hazelmere Dam in Durban, South Africa, to enhance its capacity and stability. Initially completed in 1976, the concrete gravity arch-type structure required enhancements to accommodate a proposed water storage increase. From 2015 to 2017, our team installed the world’s equal highest capacity permanent ground anchors to enable raising the dam water supply capacity level by seven meters, and improving the dam stability. During the tender period, we proposed an alternate efficient anchor solution, replacing the original design with larger anchors up to 91-strands reducing the number of anchors needed from 243No to only 83No. and optimising construction.
After undertaking at the time the world’s largest test anchor program we then went on from March 2016 to December 2017, we went on to completed drilling, waterproofing, anchor fabrication, installation, grouting, testing, and corrosion protection. Despite financial delays, we returned in July 2022 to finalise the project, using the world’s largest post-tensioning jacks. By October 2022, the last of the anchors were stressed, with permanent load cells installed to these final 10No. anchors and load monitoring completed to the 73No. previously loaded anchors by December 2022. With its increased storage capacity, Hazelmere Dam now meets international safety standards, marking a significant milestone in its history and ensuring its stability for future needs.