| Project name | Segment by segment: holding up a record-breaking bridge |
|---|---|
| Project Owner | Tasmanian Department of State Growth |
| Project Manager | McConnell Dowell |
| Location | Hobart, Tasmania |
| Application | Bonding |
Megapoxy PME SBA was used to bond 1,082 concrete segments of the new 1.2-kilometre Bridgewater Bridge – Tasmania’s largest-ever infrastructure project. Spanning the River Derwent, the $786 million structure replaces a 1946 lift-span bridge. Featuring four traffic lanes and a 3-metre-wide shared path for pedestrians and cyclists, it is transforming travel for more than 22,000 vehicles a day.
Project demands + site challenges
- Major river crossing built from over 1,000 precast segments.
- Bonding in vertical and overhead positions.
- Segment-by-segment installation, using a balanced cantilever method.
- Tight, phased construction schedule.
- Exposure to shifting weather and on-water conditions.
- High, long-term traffic loads.
- Need for ready product supply and expert advice.
Solutions, service + simplicity
We were proud to deliver the ideal solution and technical know-how for this milestone build – backed by practical support and reliable supply from start to finish.
The 1,082 concrete segments were installed one by one using a balanced cantilever method, extending outward from each pier in a self-supporting sequence. Each segment was placed and bonded directly against the previous one (known as match-casting), to ensure a precise and continuous fit.
Megapoxy PME SBA was used to bond every joint between segments. Its non-sag consistency made it ideal for vertical and overhead application, while the rapid cure time helped maintain construction momentum. Its pre-measured formulation ensured consistent mixing and performance across all joints.
Products used
Megapoxy PME SBA.
Standout benefits
- Trusted solution for one of Australia’s longest road bridges over water.
- Precision bonding for staged installation across 1.2 km segmental design.
- Fast-curing formulation helped drive progress during key stages.
- Clear, efficient application supported tight timeframes.
- Confidence of lasting strength and safety on a critical freight and commuter route.