Tiêu chuẩn thi công LRFD
T-4 ConstructionLRFD Construction SpecsVisual InspectionSection 26 – Metal CulvertsSection 27 – Concrete CulvertsSection 30 – Thermoplastic Pipe T-4 ConstructionVisual Inspection• LazrRing C-Map Systems, Inc.– Video camera with laser light• ORPHEUS RapidView IBAK USA– 40X zoom camera with laser• Pearpoint SPX Corporation– Pan camera T-4 Construction T-4 Construction T-4 Construction T-4 Construction . T-4 ConstructionLRFD Construction SpecsVisual InspectionSection 26 – Metal CulvertsSection 27