The project works to be delivered under the Stormwater Management Plan (SMP) are best described as 8 sub-projects:

  1. Brown Hill Creek Diversion (DPTI)
  2. Ridge Park Flood Control Dam
  3. Glenside
  4. South Park Lands
  5. Lower Brown Hill Creek Upgrade
  6. Flow Diversions
  7. Upper Brown Hill Creek Upgrade
  8. Glen Osmond Creek Minor Upgrade Works

There is a logical progression in which works need to be undertaken with consideration to:

  • The relative effectiveness of the individual works.
  • The requirement to ensure the staging of works does not result in the temporary transfer of a flood problem elsewhere.
  • Works involving temporary detention of flood waters can proceed at any time. They provide benefit even if other works are not completed.
  • Channel upgrades should progress from downstream to upstream and should follow the construction of flood detention works, because channel upgrades are sized for reduced outflows from upstream detention systems.
  • The flow diversions from Keswick Creek to Brown Hill Creek must be staged to follow the Lower Brown Hill Creek upgrade.

Stage 1
Flood detention: Ridge Park flood control dam and South Park Lands and Glenside.

Stage 2
Lower Brown Hill Creek upgrade.

Stage 3
Flow diversions from Keswick Creek to Brown Hill Creek.

Stage 4
Upper Brown Hill Creek Upgrade, including Brown Hill Creek Diversion (DPTI Culvert).

Stage 5
Glen Osmond Creek minor upgrade works.

Currently, delivery of the project is scheduled over 20 years with completion in 2036.

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