CLANWILLIAM, Western Cape – The massive Clanwilliam Dam Wall Project has reached significant construction milestones, with Deputy Minister of Water and Sanitation David Mahlobo confirming that the R8 billion infrastructure upgrade in the Western Cape is progressing steadily. During a comprehensive site inspection on Wednesday, Mahlobo assessed the strategic development in the Cederberg Local Municipality and praised the engineering teams for their critical advancements.
Critical Construction Phases and Technical Progress
At the heart of the upgrade is the physical expansion of the existing infrastructure. Mahlobo highlighted that the demolition of specific sections of the legacy dam wall is now complete. Furthermore, the drilling and grouting processes for the new dam wall’s foundation are well advanced, with concrete placement for the new structure already reaching 21,998 cubic meters.
Additional critical phases have also been successfully executed by the on-site teams. These include the emergency construction of an upstream coffer dam situated at the intake tower, as well as preparatory groundwork for the new dam wall. Notably, the construction of the lower spillway was successfully wrapped up in May of this year.
Overcoming Weather Delays and Future Timelines
The ambitious project has not been without its environmental challenges. Excavation work for the coffer dam’s foundation had to be paused due to exceptional rainfall during the previous year’s wet season. However, operations successfully resumed in February.
Looking ahead, the project roadmap outlines several long-term targets. The installation of spillway pipes and the construction of the gallery are slated to begin in November 2026. Following that, the excavation of the tunnel and intake tower is scheduled to be finalized by June 2027, paving the way for the overall project completion in 2028.
State Capacity and Stakeholder Collaboration
Emphasizing the capability of local expertise, the Deputy Minister expressed pride in the department’s internal capacity to handle mega-projects without relying heavily on foreign contractors.
“I am very pleased because it is not an easy thing, but the team that is working here [from our department] is very experienced… It is an advantage that there is capacity within the State to do these kinds of major infrastructure projects… and that the department was able to bring in experience… mostly South African entities and companies… [This] is one of those particular advantages with which we are very pleased,” Mahlobo stated.
Beyond the physical construction, maintaining trust with the community remains a priority. Mahlobo engaged directly with key local stakeholders, including the Clanwilliam Water Users Association and the Lower Olifants River Water User Association. He assured these water users that the project remains strictly on schedule while the department works to balance ongoing construction with the uninterrupted supply of water for both agricultural and domestic needs.
“There is still more work to be done on this project, and we encourage the coordination of cooperative governance with stakeholders, as well as the provincial government. Good short-term milestones have been achieved, but there is still a lot of work to be done, and we therefore need to work together to ensure that we reach our targets and finalisation of the project within the planned timeframe,” Mahlobo emphasized.
Long-Term Impact and Regional Water Security
As a flagship investment by the government, the Raising of the Clanwilliam Dam Wall Project is designed to secure the long-term water future of the West Coast.
Upon finalization, the dam wall will be elevated by 13 meters. This structural enhancement will expand the dam’s total storage capacity by an estimated 82 million cubic meters.
This massive influx of stored water will drastically improve the reliability of supply for regional economic growth, household consumption, and irrigation. The project is specifically positioned to benefit local farmers, households, and historically disadvantaged agricultural operators alike.
Furthermore, the upgrade will ensure strict compliance with modern dam safety standards, particularly during severe flood events, while simultaneously preserving the vital ecological requirements of the Oliphant River.
