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Inspection Quality

Inspection Quality. Farrell Potter MnDOT Bridge Office 651-366-4471 Farrell.Potter@state.mn.us. Keys To Successful Inspection. Quantification Location Description Dates. Quantification of Defects. If it can be measured, then it shall Record in inspection report:

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Inspection Quality

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  1. Inspection Quality Farrell Potter MnDOT Bridge Office 651-366-4471 Farrell.Potter@state.mn.us

  2. Keys To Successful Inspection • Quantification • Location • Description • Dates

  3. Quantification of Defects • If it can be measured, then it shall • Record in inspection report: • Measurements to monitor any change • How measurements were made

  4. Location of Defects • Report locations of defects • Allows other inspectors to monitor defects on next inspection • The severity of defect can depend on location

  5. Description of Defects • Justification of the condition state or NBI code • Should indicate type of defect and severity • Use language from the inspection manual

  6. Dating of Inspection Notes • Date inspection notes • Allows for determination of when defect was first noted • Allows to see how defect is changing over time

  7. Example of Proper Documentation [2009] South fascia girder has 10LF of freckling rust starting at west abutment Description Location Date Quantity

  8. Example of Proper Documentation [2010] No change from 2009 note [2009] South fascia girder has 10LF of freckling rust starting at west abutment OR [2009-2010] South fascia girder has 10LF of freckling rust starting at west abutment

  9. Example of Proper Documentation [2011] South fascia girder has 15LF of freckling rust starting at west abutment [2010] No change from 2009 note [2009] South fascia girder has 10LF of freckling rust starting at west abutment OR [2011] South fascia girder has 15LF of freckling rust starting at west abutment [2009-2010] South fascia girder has 10LF of freckling rust starting at west abutment

  10. When To Take A Note • Any element in a condition state of 2, 3, 4 or 5 • Any NBI in a 5 or less • Date or note should be updated every year inspection is performed

  11. Examples • Acceptable: The entire quantity is in condition state 1, so no defects means no notes are necessary

  12. Examples • Unacceptable: Quantity is in CS2, and is missing description and date.

  13. Examples • Acceptable: Should consider keeping original dates to track change over time

  14. Examples • Unacceptable: Quantity is in CS4 and properly dated. However notes do not justify the condition state.

  15. Photos • At a minimum two photos in the bridge file • Roadway view, profile view • Also recommend for: • NBIs less than 5 • Condition States greater than CS2

  16. Sketches • Provide quick and easy way to capture inspection data • Can be updated over time to reflect changes • Recommend for: • NBIs less than 5 • Condition States greater than CS2

  17. Inspection Quality Checklist

  18. Winter Inspections How thorough of an inspection can you perform during the winter?

  19. Questions? Farrell Potter MnDOT Bridge Office 651-366-4471 Farrell.Potter@state.mn.us

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