Nadi River Dredging Stage 2– Fiji

Dredge: Kikilu 14”
Client: Fiji Government
Dates: Jun – Nov 2009

Many of the large Fijian coastal rivers suff er from serious sediment build up at the river mouths, due to erosion of soils in the upper catchments. Tropical rains and cyclones during the wet seasons then pose significant flood threats to the towns and villages in the coastal deltas.

The Nadi River is one of these Fijian rivers which suff er from fl oods every year, causing major damage to infrastructure and problems with public health. To tackle the problem, the Government of Fiji carries out a dredging program on the rivers to remove sediment build up.

From 2008 to 2010, Hall Contracting (Fiji) Pty Limited was awarded three separate contracts to remove a total of 1.2 million cubic metres of sediment from a section of the Nadi River, extending 1.2km out to sea from the river mouth, to a point 7.7km upstream from the mouth. A channel was dredged approximately 50m wide and 5m deep, with the material placed in secure bunded areas adjacent to the river banks.

Project Highlights
• 1.2 million cubic metres dredged
• Training of local Fijian operators and crew, who are now integral parts of the operation
• Training of Government Surveyors in hydrographic survey techniques
• Improved flood flow conveyance in the river and lessening of flood effects
• All projects came in before time and under budget for the Government.


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