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CROSS Safety Report

Corrosion of main girder beam on bridge supporting rail lines

Report ID: 745 Published: 23 May 2022 Region: CROSS-UK


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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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.

Expert Panel Comments

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There are no Expert Panel comments on this report. The Expert Panels are only asked to comment on selected reports. These are normally reports where there is an opportunity for them to help you understand what can be learned from the report.

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