Dryback Moisture Content testing is a field moisture assessment method required under Main Roads Western Australia Specification 201 for earthworks construction on MRWA projects. It determines the moisture content of pavement and subgrade materials on site, allowing supervisors and engineers to verify that moisture is within the specified range before compaction begins. Western Geotechnical Laboratory Services (WGLS) provides Dryback Moisture Content testing to WA 110.1 / 136.1, carried out by experienced field technicians across metropolitan Perth and regional Western Australia. Fast turnaround of results supports construction program requirements and helps avoid delays on time-critical MRWA projects.