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The project has been approved by Adelaide Park Lands Authority (APLA) and Adelaide City Council – detailed design will commence once consultation is completed and Development Approval needs to be obtained.
How has the need for the restoration work been identified?
A number of studies, including an independent tree audit, have been carried out to assess the condition of the Creek. These include:
A comprehensive hazard identification inspection and analysis undertaken by Council which included the section of the Creek between Beaumont Road and Unley Road (from Victoria Park (Pakapakanthi) to Park 20 (Kurangga) in the South Park Lands
An analysis in 2015 of the performance of the Creek in Park 16, which provided vital information for design improvements to enable the Creek to perform at a higher level. This work, which was critical in the development of the Master Plan, identified the need for:
The revegetation of the Creek to preserve existing native vegetation and significant trees
Changes to the Creek profile to support natural creek performance and increase biodiversity; and
Creek realignment to reduce existing rapid water flow.
In 2015 an independent tree audit and survey was carried out along the Creek in Parks 17-19. It assisted Council to identify trees that:
Must be retained
Were optional for removal; including undesirable exotic species that could be removed to allow for creek rehabilitation options
Several studies and storm water management plans have been underway between local Councils since 2006 as the Creek flows into the Glen Osmond Creek in the City of Unley and directly impact the Brownhill Keswick Creek. The Master Plan design has incorporated the design flows proposed in the detention basins in Park 20 (Pakapakanthi) and Park 16 (Kurangga) of the most recent storm water management plan. The Master Plan is efficient in managing the current creek layout once the detention basins have been built.
Over time the condition of the Creek, which
runs through Tuthangga (Park 17), Wita Wirra (Park 18) and Pityarilla (Park 19),
has deteriorated. This deterioration has been caused by a number of
environmental factors including through erosion; bank instability; sedimentation;
loss of habitat; weed/exotic tree intrusion, and the presence of a number of
safety hazards to the users/community due to steep/vertical banks.
The Master Plan is a five year program of necessary work needed to restore the condition of the Creek. The Master Plan, which will cost an estimated $3.88million, is to be delivered over a 5 year period as part of Council’s draft Water Asset Management Plan.
This project will improve safety along the creek, increase biodiversity and reduce flooding in the South Park Lands.
The Creek would be enhanced so that it contributes to its Park Lands setting and the ecology of the South Park Lands more broadly.
This work will mitigate risks and reinstate the level of service in the Park Lands for the users/community.
The South Park Lands Creek (the ‘Creek’) is an artificial drainage channel that was built in 1917 to channel water from the Greenhill Road/Fullarton Road intersection through the South Park Lands. Over time the condition of the Creek has significantly deteriorated.