Hydrology is often a vital aspect of major infrastructure projects. The design of bridges and cross-drainage for large road and rail projects is frequently complicated by the hydrologic impacts on existing residents and developments in the area. Our key strength lies in a combination of strong technical ability and focus on community consultation, throughout all stages of the project from route selection and environmental impact assessment through to detailed design and construction.

We have proven experience delivering robust hydrologic analysis and concept design for major projects such as Warragamba Dam, the NSW Pacific Highway Upgrade (inlcuding the Kempsey Bypass), the Harry Boyle Bridge at East Maitland, the Southwest Rail Link, and many others.

Specific Projects

  • Nundah Creek SOBEK Model Conversion: Conversion of the Nundah Creek SOBEK model to a nested model with 2m grid areas embedded within a 6m parent model. This converted model forms the basis of the Gateway Upgrade North flood model.
  • Warrell Creek to Urunga: The proposed upgrade of the Pacific Highway between Warrell Creek and Urunga is part of the Pacific Highway upgrade program being implemented by Roads and Maritime Services (RMS) . The project is 42 kilometres in length, commencing at the northern end of the existing dual carriageway highway at Allgomera (referred to as the Allgomera deviation), connecting with the existing Waterfall Way interchange, north of Urunga.
  • Kempsy Bypass: The Kempsey Bypass is the initial stage of the Kempsey to Eungai Upgrade project, involving a 14.5km four-lane divided highway which crosses the Macleay River floodplain to the east of Kempsey. The 3.2km bridge across the Macleay River and floodplain is the longest in Australia. WMAwater were heavily involved in all phases of the project.
  • South-West Rail Link: The South West Rail Link (SWRL) has been proposed by the NSW Government as part of a commitment to infrastructure for the South West Growth Centre urban release areas. The 13.2 km line will provide a link from the existing Glenfield station to the urban release areas of Edmondson Park and Leppington. The proposed alignment crosses a number of waterways including the Bunbury Curran floodplain, and the upper tributaries of Cabramatta and Maxwells Creek.