Damage to an Aboriginal cultural artwork in Echuca has left its creator and Campaspe Shire Council frustrated.

The Dhungala Dreaming mural was created by Yorta Yorta Elder Judy Atkinson and unveiled in 2022 as part of the Echuca-Moama Bridge Project.

The artwork is located along the walking track behind the Victoria Park tennis courts.

Aunty Judy discovered extensive graffiti on the mural on last week while taking photographs for a local group.

She described the damage as disappointing.

"It was disappointing that someone would do that," she said.

The artwork was designed to educate the public about Aboriginal culture, local history and the meaning behind the bridge's name.

"Part of that project, or my concept, was educating the public on Aboriginal culture and history, and the story behind the name of the bridge," she said.

The mural depicts Aunty Judy's interpretation of the creation of the Dhungala, also known as the Murray River, during the Dreamtime.

It tells the story of the Rainbow Serpent joining the rivers in the Echuca area.

Four of the artwork's 17 steel panels were damaged with white spray paint, affecting a central section of the mural.

Campaspe Shire Council became aware of the graffiti recently and arranged a clean-up team.

The council said graffiti and vandalism were unacceptable, with this incident carrying added weight due to the cultural significance of the artwork.

"Graffiti and vandalism anywhere in our municipality are unacceptable, but this incident carries an even heavier impact because of the cultural significance of the mural," a Council spokesperson said.

"The Dhungala Dreaming mural is not just a piece of public art; it tells an important creation story and holds profound cultural meaning for the First Nations communities of this region.

"We share the deep hurt and disappointment felt by our community at this senseless vandalism."

Residents have been urged to respect community assets that reflect shared stories.

Members of the public with information about the vandalism are encouraged to contact Victoria Police as non-urgent matters can be reported on 131 444.

Anonymous reports can be made to Crime Stoppers on 1800 333 000.

Original reporting by The Riverine Herald.