Channel Island Bridge Pipeline

Type of project: Gas Infrastructure

Client: APA Group
Location: Darwin, NT, Australia
Completed in: 2021

This project required the installation of a 1.4km DN300 pipeline via HDD between Channel Island, where the Channel Island Power Station is located and the Darwin mainline.

The HDD crossing under the waterway was completed through varying geology up to 250MPa rock strength. The profile was very complex with a compound curve arrangement completed to minimum pipe bending radius during the last 400m of the crossing.

Works included modifications to existing station piping at Darwin City Gate and the Channel Island Meter Station facilities to install pig launching and receiver facilities along with gas filtration and an upgrade to monitoring instrumentation.