Project description
Doolee were engaged by Rhomberg Rail to perform protective coating repairs area to Kyogle Rail-bridges in the Hunter Valley. The scope of works included to identify and rectify critical structural elements such as gusset plates and connections showing signs of corrosion across a double-span bridge structures.
Scope inclusions
- Steelwork was assessed to identify and prioritise areas for coating repair. Agreed areas were then marked up for surface preparation.
- Repair areas were prepared via mechanical means which included, needle-guns, die-grinders and bristle-blasters with vacuum attachments to contain dust.
- A two-coat coating system was specified for the works which comprised of an aluminium impregnated surface tolerant high-build epoxy, followed by a surface tolerant MIO topcoat
Challenges & Highlights
- Works were carried out during track possession periods between daily train movements
- Existing coating comprised of lead which was managed in accordance with relevant standards
- Access to bridge structure was via suspended scaffold
- Care was taken to ensure paint flakes were captured and did not enter the below waterway
- As a result of the works the overall lifespan of the bridge structure has been protected and increased
