Scarborough Beach Stormwater Upgrade
J and S Series Jacking Pipes Enable Trenchless Installation
The Challenge
Upgrading Stormwater Infrastructure in a High-Traffic Coastal Environment
As part of the Scarborough Environs Area Strategy (SEAS) master plan, the City of Stirling required a supplementary stormwater outfall to improve drainage along Scarborough Beach Road. The works were located within a high-traffic coastal precinct with heavy pedestrian and vehicle activity, making minimising surface disruption a key project requirement.
Variable ground conditions, including sand, limestone and calcarenite at depths of up to 6m, further constrained construction options.
The Solution
Delivering Trenchless Installation Beneath Scarborough Beach Road
To reduce disruption in this sensitive foreshore environment, the stormwater pipeline was installed using trenchless construction methods. DJ MacCormick Contractors completed the works using Humes steel reinforced concrete jacking pipes, allowing the pipeline to be constructed beneath key infrastructure without open excavation.
Selected for their high axial load capacity and proven trenchless performance, Humes jacking pipes supported reliable installation through challenging ground conditions. The works were completed in multiple jacking drives, with launch and receival shafts positioned to minimise the surface footprint of the project.
Outcome
Completing the Upgrade Ahead of Schedule with Minimal Disruption
The stormwater upgrade was completed approximately six weeks ahead of schedule and prior to the foreshore precinct’s peak summer period. The use of trenchless construction significantly reduced disruption to the surrounding area, delivering a positive outcome for the City of Stirling and the local community.
Banner image: Nathan Hurst on Unsplash; Feature image: Skateboarding at Sunset at Scarborough Beach Skatepark, Perth, WA by Harry Digital on Unsplash.
