Clarence River Bridge at Grafton

Client: Rizzani de Eccher S.p.A

Project Value: A$ 200 Million

Project Description: The new 553m long Clarence River bridge at Grafton is to be built 70m downstream of the existing bridge. According to the concept design, the Concrete Box girder Bridge has 10 spans with two 35m wide and 9.1m high navigational channels to allow maritime traffic. The bridge will be a single lane dual carriageway with a width of 16m.

According to the concept design, the bridge would be constructed using a combination of balanced cantilever spans for the river crossing and prestressed beam-and-slab construction methods for the viaducts.

Scope: Indus (formerly known as Deleg8) was engaged by Rizzani de Eccher to manage the complete process from registration of expression of interest to submission of the tender for the Clarence River Bridge at Grafton and associated works in the Grafton town centre.

At the EOI stage Indus established a team consisting design, construction, planning and technical writing experts. A concept design was developed by Indus in Sydney and communicated to the structural designers in Italy for detailing. Indus developed two separate methodologies and program. One using a composite steel/concrete structure. The other using traditional balanced cantilever methodology. Indus also developed the content for the client workshops and presented to RMS on behalf of RdE. RdE was one of three tenderers to be shortlisted from a group of 6 for the RFT stage.

During the RFT stage Indus managed the tender design coordination between the structure designers in Italy and the Australian Architects and Civil designers