Coliban Water will complete renewal works on the main near Alexandra Fountain that was constructed in 1923 with 88 metres of the 450mm wide pipe and 77 metres of 375mm wide pipe to receive work.

The works are scheduled to take place at night from 9pm to 6am on Sunday, February 17 to Tuesday, February 19, when there are low flows in the sewer main. It will also cause a minimal disruption to customers, businesses and traffic.

"The sewer main is around 100 years old and will be renewed using a trenchless technique which enables us to keep the road open to traffic at all times and have no interruption to our customers’ sewer service," Coliban Water manager of infrastructure Corey Bourne said.

A trenchless technique called Rib-Loc is being used to renew the main. It involves relining the pipe with a spiral bound PVC that restores the structural integrity and reliability of the sewer main.

The relining is carried out from the sewer maintenance holes eliminating the need to excavate and will increase the pipe’s life expectancy by at least another 50 years.

“The ongoing renewal of sewer mains across our region is an integral part of our operations to ensure we maintain and deliver services to customers.

"The main under Charing Cross was constructed in 1923 and is the original concrete pipe from the first Bendigo sewer system."