World-class structure reconnects communities
United States Army Corps of Engineers built the first major bridge across the Rewa River in the 1940’s, connecting Fiji’s capital Suva with the surrounding Nausori District and the Tailevu Province in the North. But after 60 years, the bridge was structurally unsound and grossly under capacity – causing major traffic delays for Suva’s 40,000 residents.
We replaced the outdated two-lane structure with a modern nine-span, four-lane road bridge, creating a faster, safer connection between the communities and significantly reducing traffic congestion. With dedicated pedestrian and cycling access, the new bridge also provides a safer crossing for children travelling from Nausori to attend school in Suva.
Designed as a single cell concrete box girder, the 428m bridge was incrementally launched, which significantly reduced cost and construction time over the post-and-beam design originally envisaged by the client’s engineer. Importantly, this construction approach also minimised disruption to nearby schools, communities, and road users. Each of the 26 bridge segments were cast individually, stressed together with reinforcing cable and pushed progressively out over the water, from pier to pier, to the other side of the river. Segments were cast on a purpose-built casting bay and launched with the aid of a 23m-long ‘launching girder’ and four 170 tonne hydraulic launching jacks.
A truly world-class structure, Rewa bridge is at the upper end of current international span and box sizes for incrementally launched bridges.
A truly world-class structure, Rewa bridge is at the upper end of current international span and box sizes for incrementally launched bridges. Though we had built push-bridges before (in Auckland, Wellington, and Tauranga) Rewa bridge was by far the most complex, and it was a privilege to build something of this scale in this part of the world.
Our work also included a 1km approach road and a 20m-long, single-lane road bridge over Waicuku Creek.
We employed and trained local people to build the bridge, providing them with skills they can use in future employment.