Council has begun an upgrade of stormwater drainage pipe along Blue Jay Circuit and Quail Place to improve drainage in the West Kingscliff area.
The $4 million project will triple the drainage capacity by installing a pipe with an internal diameter of 2.25m from the easement near No. 11 Blue Jay Circuit to the western side of Elrond Drive. This pipe will replace a system which was built by the housing estate developer and which ranged from 1.2m to 1.35m in diameter. While the old pipe catered for a storm event with an average recurrence interval (ARI) of five years, the new system will cater for a storm event with an ARI of 100 years.
Work is expected to start on Monday August 13, 2012 at the Elrond Drive end of the project and progress through Quail Place to Blue Jay Circuit. It will conclude in the easement next to No. 11 Blue Jay Circuit. In total, the project is expected to take approximately 26 weeks to complete, weather permitting.
Blue Jay Circuit, Quail Place, Lorien Way and Elrond Drive will need to be closed or partly closed during some sections of the work.
Construction will involve excavation of up to four metres, using a four-metre-wide shoring box, to the existing pipe invert and replacing the existing pipe with the larger diameter pipe. This will involve a 50-tonne excavator and heavy vehicles to and from the site.
Council will run two crews to complete the project as quickly and efficiently as possible but it is estimated crews will only be able to install an average of two pipes per day because of the size of the pipes, the number of existing services that need to be modified and the depth of excavation, all within a constricted corridor.
Construction is expected to take 26 weeks (excluding weather or other unplanned events) and will be staggered to minimise the impact to residents on each section of the pipeline's route.
Please see Available Downloads for further details of the project, including measures to minimise the impact on residents.