Piling works on both sides of the river, including two flood relief structures, have been completed after almost three months of work.
The past three months have seen two piling rigs drive more than 550 piles into the ground, with pile driving reaching depths of about 35 metres.
These have combined for more than 1650 pile sections, with a total length of 16 kilometres.
Program director Eric Shegog said the next step was a major one for the project.
“The project is about to enter an exciting new phase with the first beams about to arrive from Kilmore that will form the new bridge over the Campaspe River,” he said.
“Work is progressing well on the new road that will reduce traffic on the existing Murray River Bridge and better link the towns of Echuca and Moama.”
Stage three will now continue, with workers now building the piles caps and piers for the two new bridges.
This will involve transporting 125 concrete and steel beams to four project sites, as well as starting construction of the new bridge across the Campaspe River.
Locals have been advised that this may cause extra traffic around the town.
“The first of the beams, which weighs between 80 and 105 tonnes and are up to 35 metres long, are scheduled to begin arriving in Echuca on October 20,” he said.
“A large mobile crane is being assembled south of the Campaspe River ready to lift the beams into place.”
The $330million project is scheduled for completion in 2022.