Projects in action
Our projects in action
Maintaining existing assets
We have recently completed a major stream bank stabilisation project in Wyong. We restabilised 150 metres of stream bank along Wyong River, just off Alison Road, to minimise erosion and sediment entering Tuggerah Lakes.The continued erosion at the site isn’t just threatening the Lakes, it’s also next to a busy road and important communications infrastructure.
The $2.4 million project was completed in two stages and came in under budget. Stage one involved contractors working from a barge to install steel piles and recycled concrete blocks and sandstone backfill. Stage two involved staff extending the rock backfill up the bank to form a sloped rock wall. We also provided a new cycleway, fence and landscaping.
The work will greatly benefit the community by providing long term stability to Alison Road and preventing further loss of sediment into the river and Tuggerah Lakes.
Wyong River Project – Streambank Stabilisation
Planting for streambank stabilisation
Final touches to streambank stabilisation
Sustainable Cities Awards
(Left to Right) Andrew Pearce, Councillor Lloyd Taylor, Deputy Mayor Lynne Webster, Dave Ryan and Nicole McGaharan
Wyong Shire Council’s Estuary Management Plan and associated works was only one of two entrants to receive two awards for the 2013 Sustainable Cities Awards Program offered by Keep Australia Beautiful NSW.
The Estuary Management Plan and associated works were awarded:
WINNER – Sydney Water – Sustainable Water Award
HIGHLY COMMENDED – Biodiversity Conservation Award
The Sustainable Cities Awards Program is aimed at projects that not only enhance the environment, but improve the quality of life for communities. Awards are presented to projects that inspire communities to make a genuine and lasting contribution to their area, working in partnership with local government, businesses, community groups, schools and individuals. The awards submissions focuses on the work completed under the Australian Government’s Caring for our Country $20 million grant, which ended after five years on 30 June 2013.
Some major achievements of the Estuary Management Plan works include:
- 48.4 ha of saltmarsh rehabilitation
- 37 km of stream bank rehabilitation on Saltwater, Tumbi and Ourimbah Creeks and Wyong River
- 375 Ha of Wetland protection and rehabilitation
- Various community engagement and education programs
Council’s Manager Waterways and Asset Management, Andrew Pearce is excited to showcase the amazing work that has been completed. Although the Caring for our Country grant is now finished, Council is continuing the focus on the completion of works in the Tuggerah Lakes estuary under the Estuary Management Plan.“Ultimately we want to protect and enhance the values of our Tuggerah Lakes system to improve the standard of living and quality of life of our community,” Mr Pearce said.
Major focuses include the construction of new and upgraded stormwater quality improvement devices, increased maintenance of existing stormwater treatment devices, enhancements to popular lake foreshore recreational areas, and increased wrack harvesting.
Natural channel designs
One way of reducing pollution to Tuggerah Lakes is called source control. This means using methods to try and stop the pollution from being created in the first place rather than finding ways to catch and treat it at the lake’s edge.
A common form of pollution which flows into the Tuggerah Lakes is sediment, with much of this coming from open channels and open earth drains in the catchment. Two techniques are used to address this issue:
- natural channel design – uses rock lining and vegetation to protect the soil in open channels and reduce sediment loads
- grass lined drainage swales – a Water Sensitive Urban Design (WSUD) technique which protects soil and reduces sediment (This will be trialled in Colongra road Lake Munmorah in 2013).
The projects for natural channel design include Parkside drive, Loxley Close and Saltwater creek lined channels.