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A levee is in place around a power substation in an attempt to hold back water from the swollen Loddon River at Kerang, Australia. Up to 1,500 homes in Kerang could be affected if the Lodden River rises further. Image Credit: AP

Melbourne: A surging river yesterday flooded and isolated the latest community hit in Australia's deadly flood disaster, straining a levee serving as the main protection between the muddy waters and residents' homes.

The flooding in Kerang, in the southeast state of Victoria, follows weeks of massive flooding in northeastern Queensland that the government says could be the nation's most expensive natural disaster ever. Overflowing rivers swamped an area larger than France and Germany combined, shut down much of Queensland's lucrative coal industry and left 30 people dead.

Walls of water kilometres wide are now surging across northern and western Victoria in the wake of record rainfall last week.

Evacuations

Seventy-two Victorian towns have already been affected by rising waters, 1,770 properties have been flooded and more than 3,500 people have evacuated their homes.

Floodwaters in the Kerang region are the highest they've been in more than 100 years, said Kim Healey, a spokeswoman with the State Emergency Service. Up to 1,500 homes in the town could be inundated if the levee holding back the water from the swollen Lodden River gives way. It has held out so far, but water levels were expected to remain high for several days.

"The primary concern is the ability of the levee to withstand high flood levels for an extended period of time," Healey said.

Other communities were at risk of inundation for the next few days as water levels continue to rise in several areas.

Residents of Dimboola, a town of about 2,000 in the state's northwest, were asked to evacuate yesterday as the Wimmera River that runs through the community surged higher.