Shannon, WA

Project Description

Streamline Underground Services was engaged by ABB Australia to construct a Comprehensive Nuclear Test Ban Treaty Infrasound Station, in the Shannon National Park Southwest Western Australia. The main stake-holder was Geoscience Australia.

The Infrasound Station consisted of eight sensing elements located in the form of a lopsided triangle with dimensions of approximately two kilometres. Each element was then linked back to a Central Facility using optic fibre cable. Power cable was also installed from the Central Facility to each element. Each of the eight sensing elements consisted of an instrument vault and four summing manifolds, which were made up of twenty four radial arms.

The project included the installation of 7km of PVC pipe @ 700mm cover through dense bush land with a maximum clearing of 2.5mts. This was overcome by the use of ploughing technics which limited the area needed to successfully complete the project.

Strict environmental hygiene was followed due to working in a highly sensitive National Park. This was done following procedures laid out by The Department of Conservation And Land Management. Aboriginal social and heritage guidelines were followed by liaising with an onsite representative from the Southwest Aboriginal Land and Sea Council.