Piavanini Collie Burn

Project Logistics & B2B Overview

Geographic Location and Topography

Piavanini Collie Burn is situated within the Collie River Management Floodplain, South West Western Australia — a zone characterised by dense karri-marri forest cover, undulating lateritic terrain, and seasonal hydrological stress. Intense rainfall events typical of the South West Land Division generate significant surface runoff, creating persistent mud accumulation on haul roads and access corridors. Truck payload efficiency is directly compromised during wet seasons, demanding engineered road base stabilisation and continuous grading cycles to maintain operational throughput for construction material extraction.

B2B Lifecycle and Operations

The site operates under an active extraction status, supplying construction-grade aggregates and raw materials consistent with regional civil infrastructure demand across South West WA. Operational continuity relies on:

• Diesel-intensive haulage fleets operating across extended shift rotations
• Dependency on regional power substations for crushing and screening plant energisation
• Procurement cycles aligned with WA Department of Water and Environmental Regulation (DWER) licensing windows
• B2B supply agreements with civil contractors servicing Bunbury–Collie infrastructure corridors

Engineering and Extraction Infrastructure

Construction material operations at Collie River floodplain sites typically deploy:

• Primary jaw crushing circuits for coarse aggregate reduction
• Scalping screens and secondary cone crushers for graded product specification
• Wash plant integration where physico-chemical fines management is required to meet AS 2758 aggregate standards
• Sediment retention ponds to manage process water discharge into the Collie River catchment

No flotation circuits are confirmed; extraction focus remains on mechanical size reduction and classification.

ESG, Value Chain and Sustainability

Operations within the Collie River floodplain carry elevated Heritage compliance obligations under the Aboriginal Heritage Act 1972 (WA), given the cultural sensitivity of riparian corridors in Noongar Country. B2B procurement strategies should prioritise:

• Engagement with Noongar-owned enterprises for site services, vegetation management, and rehabilitation
• DWER-compliant rehabilitation bonding and progressive landform restoration
• Carbon accounting for diesel consumption across haulage and fixed plant operations
• Alignment with WA's Closing the Gap procurement frameworks for subcontractor selection