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SAMCO Final Report 2006 F09 Report on Bridge Management

4.4 France (LCPC)

The practice prescribed by the French Directorate of Roads and Highways includes the types of inspections listed in Table 8 and the condition ratings described in Table 9.

Inspection type

Frequency

Result

Annual check

1 year

Identification of bridge, date of check observed anomalies and signs of change. Work must be carried out by a Subdivision employee (brief in- spection at the same time as routine mainte- nance).

Assess- ment in- spection (IQOA inspection)

3 years

If a detailed inspection has been conducted during the year, an assessment of the bridge is made (according to the IQOA classification) on the basis of the detailed inspection report

if not assessment is performed after inspection as laid down by the IQOA method with production of reports in standard form. Work must be carried out by a Subdivision employee, with District Bridge Unit support.

Detailed periodic inspec- tions

Only medium or large bridges: in principle 6 years, but modifications are possible:

  • 9 year for the strongest

  • 3 year if necessary

  • 1 year for the most vul-

nerable

Detailed report amounting to a report on the health of the bridge. Directed and exploited by a qualified engineer with special training in bridges and bridge pathology (from District Bridge Unit, techni- cal network or approved external sources).

Table 8. Inspection types in France

The IQOA method (Image Qualité des Ouvrages d’Art - Image of Bridge Quality) is based on a classification of bridges, which is intended to provide an indicator of the mean condition of a set of bridges from an assessment of each bridge.

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