The Challenge
- Twenty-nine spans across different terrain and infrastructure, including roads and the River Ouse.
- The initial survey highlighted defects requiring further inspection, including suspected cracking and heavy corrosion.
- Hexavalent chromium was present, so a safe system of work was needed to protect operatives.
Our Solution
- Large MEWPs and an underbridge unit were used to gain access for the inspections.
- Wet preparation methods ensured no hazardous dust was released while preparing the substrate for testing.
- Eddy current testing was used where possible to reduce the amount of paint that needed to be removed.
- Preparation, ultrasonic testing, weld inspections, magnetic particle testing and hazardous material analysis were all completed within the 8-week programme.