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  • South Australia’s largest dam at Mount Bold will receive a major safety upgrade, to ensure it meets current ANCOLD (Australian National Committee on Large Dams) guidelines.
  • The design option being considered in the concept design phase of the project will address the two deficiencies by strengthening the dam and stabilising the abutments to prevent failure.
  • The upgrade will include:
    • Strengthening the dam by buttressing the concrete central arch section of the dam wall.
    • Anchoring the gravity abutments with post tensioned anchors through to bedrock.
    • Removing existing spillway gates and manual intervention.
    • Replacing the gates with a slot to provide flood attenuation.
    • A saddle dam to prevent flow through the low saddle to the north of the dam.
Project start:
March 2021
Expected completion:
June 2026
Current status:

Mount Bold Dam