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Ferny Creek Retarding Basin Upgrade


Melbourne Water has upgraded the Ferny Creek Retarding Basin to ensure it continues to reduce the risk of flooding to the community.

Why did we upgrade the Ferny Creek retarding basin?

Melbourne Water has over 200 retarding basins that reduce the risk of flooding to properties and the community. These are regularly assessed, maintained and upgraded when required. The Ferny Creek Retarding Basin was recently assessed by the Australian National Committee on Large Dams (ANCOLD), which highlighted that the retarding basin needed an upgrade to ensure it continues to reduce community flood risk and operate efficiently.

Scope of works

Embankment hardening - by reinforcing the top soil, laying concrete or installing geoweb - helps prevent erosion when the water overtops.

The works included:

  • removing trees along the embankment
  • filter trench on the embankment to increase strength
  • crest capping on the embankment
  • constructing a concrete cut-off wall
  • replacing the spillway
  • installing erosion control matting
  • installing a concrete wall to protect flora.

Next steps

Revegetation work is planned for June 2020.

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Last updated:
21 April 2020