CROSS Safety Report
Corrosion of main girder beam on bridge supporting rail lines
Overview
A hole was found in the central main girder on a bridge supporting rail line during inspection works.
Key Learning Outcomes
For asset owners and managers:
- Regular inspections and maintenance can help keep a structure safe before it deteriorates and requires costly repairs
- Be aware that safety critical defects may be hidden behind linings and connection plates
- The risks posed by hidden defects should be managed appropriately. Hidden Critical Element (HCE) inspections should be carried out by suitably qualified and experienced personnel.
- Further guidance can be found in CIRIA document: Hidden defects in bridges. Guidance for detection and maintenance (C764)
Full Report
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The Full Report below has been submitted to CROSS and describes the reporter’s experience. The text has been edited for clarity and to ensure anonymity and confidentiality by removing any identifiable details. If you would like to know more about our secure reporting process or submit a report yourself, please visit the reporting to CROSS-UK page.
An examiner undertaking a Hidden Critical Elements (HCEs) inspection reported finding a hole in the central main girder on a bridge supporting rail lines. An emergency speed restriction was applied pending repairs. The structure had a previous HCEs inspection four years before, but the ballast plates were not fully removed during the inspection.
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