Safety Concerns: Vehicular Traffic Sharp Edges 3. Heavy Equipment/Backing Incidents Equipment Required for Guardrail Inspection: Tape Measure Magna gage (Calibrated Annually by Materials and Tests Unit Chemical Lab) Micrometer Calculator Pen or Pencil Guardrail Inspection Field Worksheets Material for Guardrail Inspection: Inspector’s Duties Periodically review the Guardrail Inspection SOP. Review Section 862 of the NCDOT Standard Specifications and AASHTO M 180 Review contract special provisions and/or plans for type of guardrail and anchor units to be inspected. No inspection will be made without Bill of Lading. All guardrail inspections will be inspected after installation. Pre-Inspection Process M&T technician will be contacted by Engineer or project inspector administrating the contract to inspect guardrail and/or anchor units. Determine the location and amount of guardrail and/or anchor units to be inspected. Technician will record approximate locations of rail and/or anchor to be inspected on Guardrail Field Worksheet. Review contract special provisions and/or project plans for type of rail and anchor units to be inspected. Alternates for the anchor units will be listed in the contract special provisions. Installation plans and parts list will be furnished by installer for each style of anchor unit. FHWA approval letter will be furnished with each type of anchor unit. Inspection Process Guardrail Inspection (Straight Rail) Test lot for straight rail is 25 LF for every 2000 LF or fraction thereof. Technician will randomly select a 25 LF section of rail for inspection for every 2000 LF of installed rail.
Safety Concerns: Vehicular Traffic Sharp Edges 3. Heavy Equipment/Backing Incidents Equipment Required for Guardrail Inspection: Tape Measure Magna gage (Calibrated Annually by Materials and Tests Unit Chemical Lab) Micrometer Calculator Pen or Pencil Guardrail Inspection Field Worksheets Material Inspector’s Duties for Guardrail Inspection: Periodically review the Guardrail Inspection SOP. Review Section 862 of the NCDOT Standard Specifications and AASHTO M 180 Review contract special provisions and/or plans for type of guardrail and anchor units to be inspected. No inspection will be made without Bill of Lading. All guardrail inspections will be inspected after installation. Pre-Inspection Process M&T technician will be contacted by Engineer or project inspector administrating the contract to inspect guardrail and/or anchor units. Determine the location and amount of guardrail and/or anchor units to be inspected. Technician will record approximate locations of rail and/or anchor to be inspected on Guardrail Field Worksheet. Review contract special provisions and/or project plans for type of rail and anchor units to be inspected. Alternates for the anchor units will be listed in the contract special provisions. Installation plans and parts list will be furnished by installer for each style of anchor unit. FHWA approval letter will be furnished with each type of anchor unit. Inspection Process Guardrail Inspection (Straight Rail) Test lot for straight rail is 25 LF for every 2000 LF or fraction thereof. Technician will randomly select a 25 LF section of rail for inspection for every 2000 LF of installed rail.
Guide%20to%20Inspection%20of%20Hot-Dip%20Galvanized%20Products.docx