The familiar sight of St Kilda Beach and its marina is currently a thing of the past, as a major transformation unfolds along this beloved stretch of coastline. A week-long operation is in progress to deepen the entrance channel of St Kilda Marina, bringing significant changes to the area.

During this period, authorities have issued a caution regarding the potential for water and sand discoloration, along with elevated microbial levels as a result of the dredging activities. Consequently, both residents and visitors have been advised to steer clear of the water until the completion of these works.

Adding to the situation, an unpleasant odor pervades the area due to a malfunctioning sewage pipe on Acland Street, which has further impacted the beach environment.

The Environment Protection Authority (EPA) of Victoria has reassured the public that any discoloration caused by the dredging is a temporary effect, occurring only while sand is actively being deposited.

The Environment Protection Authority (EPA) in Victoria said the discolouring impact of dredging was “short-lived” and only took place while sand was being deposited.

“The deposited sand on the beach will appear as black sediment and will also enter the water causing dark discolouration,” the EPA said.

“There may be odour along the beach as well.”

In a statement shared with Nine.com.au, the City of Port Phillip Council chief executive Chris Carroll said regular dredging in the St Kilda Marina was required to maintain water depth.

“AMDC has received the required Works Permit from Parks Victoria (PV) and approval from the Department of Energy, Environment and Climate Action (DEECA) required under the Marine and Coastal Act 2018,” Caroll said.

“The works are being conducted in accordance with EPA guidelines.

“As the seabed is being disturbed by the dredging works, the surrounding water has a darkened appearance.

“Dredged material is being transported via pipeline to the beach north of Shakespeare Grove drain for beach renourishment, which is consistent with previous practice.”

Dredging is a common practice which is used to deepen river channels or marinas so boats can safely pass through.

Dredged sand is deposited onto adjacent beaches during the process and can contribute to beach renourishment.

The EPA has also warned many swimming spots across Melbourne and the Mornington Peninsula still poor water quality due to recent storms.

St Kilda Beach, Elwood Beach, Brighton Beach and Hampton Beach are among the spots still impacted by storm polution.