Results
144 spans and piers inspected and repaired without scaffold.
Environmental footprint significantly reduced with no impact on waterways.
Durable repairs delivered across the full length of the bridge.
Successful use of rope access methods demonstrated on one of NZ’s most critical transport structures.
Project
Solution
Rope access and alternative methods used to access all spans and piers.
4000psi water blasting to clean affected areas before priming and repair.
Concrete repairs completed using Sika MonoTop repair mortar.
Defects identified, numbered, and documented with before/during/after photographs.
Dust extraction and debris capture systems implemented to protect waterways.
Project
Challenges
Restricted access to piers and spans above waterways.
Avoiding scaffold use due to environmental consent issues and flood risks.
Large number of defects requiring accurate identification and repair.
Need to minimise environmental footprint during works.
Project
Overview
Built in 1939, the Rakaia Bridge is New Zealand’s longest road bridge at 1.7 km. Concrete inspections and repairs were required across its 144 reinforced spans and piers, many of which were located over waterways and not accessible by traditional means.
Geovert delivered the works using rope access methods to eliminate scaffolding, minimising environmental impact on the river and ensuring repairs were completed efficiently and safely.