Highway 97 Repair & Upgrade – Fort St. John, BC | Compaction Testing & QC

Perform in-situ density testing (nuclear gauge per ASTM D6938) on subgrade, granular base, and asphalt layers per BC MoTI specifications. Verify compaction achieves minimum 100% SPD for granular base and 95–97% for subgrade, with moisture control within OMC ±2%. Document lift thickness, gradation, and proof-roll results in daily field reports. Issue NCRs for soft spots or non-compliant areas and coordinate rework alongside paving and grading operations.