Covalent required a freshwater source to service their concentrator at Mt Holland. Through participation in an Early Contractor Involvement (ECI) program with the concentrator design, Primero was invited to design a pipeline system. Following on from completing the design, Primero was invited to tender for the delivery of the pipeline and was subsequently awarded the work.
SCOPE:
Construction of:
- Tie into the Mundaring to Kalgoorlie water pipeline.
- Micro-tunnelling and sleeving beneath Great Eastern highway.
- 1,000,000L break tank with duty standby pump station.
- 250,000L booster tank with duty standby pump station.
- 136km DN400 PN20 HDPE direct buried pipeline. Buried depth is a nominal 1.2m to the top of the pipe.
- Directional drilling beneath gazetted roads and significant trees.
- Control system using satellite communication.
- Hydrotesting of entire 136km pipeline.
- Commissioning of full system.
HIGHLIGHTS:
- Construction of a 136km direct buried pipeline through the shire of Yilgarn with significant traffic management programme, community and stakeholder engagement.
- The project had no recordable injuries or incidents.
- The project delivered water to the client on schedule.
- Successful design to construction execution with minimal owner team requirements.