Our team employed a highly collaborative approach to the design. Following site investigations, initial geometric design and hydraulic modelling, a trapezoidal “labyrinth” shaped weir was selected to achieve the required flows for the available width.

 

We produced a 3D rendering of the new weir structure in conjunction with an independent structural engineer. This enabled us to refine the structural elements and construction sequencing along with the initial cost estimates for CPWL as early as possible.

 

Following funding approval, we commenced the detailed design process and issued interim design drawings for review and feedback by the wider project team. This process refined the design and allowed for detailed design drawings to be completed well ahead of schedule to allow pre-casting of the concrete elements.

 

Once the contractors were established on-site, and initial earthworks and support beams were completed, we were able to place, level and connect the pre-cast weir elements within weeks of delivery to site.

 

Cast in place foundation concrete and the remaining site earthworks were then completed well before the start of the new irrigation season.