More jobs will be generated in the Mandurah area as the Dawesville Channel project moves into its next stage after Christmas.
Transport Minister Pam Beggs today said there would be jobs for between 11 and 20 additional people from mid-January, when the next earthworks phase was scheduled to begin.
Currently 70 people were working on the project site.
Thiess Contractors would be preparing to excavate material from below the groundwater table and this would mean additional plant and equipment would be mobilised, creating further job opportunities for plant operators.
Earthworks operations had slowed while the developer of the surrounding land, Wannunup Development Nominees, was in the process of obtaining the necessary environmental and planning approvals to determine how the material from the channel would be placed on Wannunup's land.
Mrs Beggs said although the approval processes were not completed, material initially would be placed on land south of the channel until March, when the approvals should be through. Material then would be placed to the north-west and north-east of the channel.
So far about 1.5 million cubic metres of material had been excavated. This was slightly ahead of schedule. The total amount of material to be removed was 4.5 million cubic metres.
After Christmas, Thiess would begin dewatering operations to allow the scrapers and other earthworking machines to operate below the water table.
Work also had begun on the Estuary Road deviation to reconnect Estuary Road to Old Coast Road immediately south of the bowling club.
Work was continuing on the new four-lane traffic bridge.
The bridge was being built using the incremental launch method. This involved casting segments of the bridge on land, then jacking out each completed 17-metre section.
The first segment was launched last Friday. Casing and launching would continue on a weekly basis until the bridge was complete.
The Dawesville Channel is Western Australia's single biggest marine engineering project and is being managed by the Department of Marine and Harbours.