Canada mobilized its army to help thousands of flood victims try to hold back waters and save their homes Monday after the worst flood in half a century struck, but authorities were optimistic that rising water levels would soon crest.

Several rivers and lakes have overflowed their banks in Quebec province, between Gatineau in the Canadian capital region and Montreal 200 kilometers (125 miles) downstream.

The ground is saturated and unable to absorb any more water.

But recent heavy rains have started to subside and "as of Wednesday, we expect to see the situation begin to improve," Quebec Public Safety Minister Martin Coiteux announced.

Some 2,500 homes in Quebec and more than 300 in Ontario have been flooded, and at least 1,500 people have been ordered to evacuate -- most of them in the Canadian capital region.

In Pierrefonds, one of the hardest-hit regions near Montreal, Johanne Aubin spent the morning pumping water from her basement using a pump from her backyard swimming pool.

The flooding took her and most others here by surprise, and she barely had time to erect a small sandbag wall around her property.

After days of fighting an exhausting battle to hold back the waters, often in vain, despair has started to set in.

Most of the streets here are flooded, forcing locals to travel by canoe or other small boat.

Resident David Swidzinsky has been ferrying neighbors to safety, or back to their homes to collect precious belongings that had been missed in the rush to get out when a state of emergency was declared.

People "broke out in tears (seeing the devastation) when I brought them home to fetch their bags," he said.

A few streets over, a dozen soldiers tirelessly filled sandbags. Across eastern Canada, hundreds of thousands of sandbags have been used and Ottawa has asked suppliers for up to four million more, said officials.

Pierrefonds resident John Parker spent his day hauling wet furniture and personal belongings to the curb, as a pump and hose sputtered water from his flooded basement over another wall of sandbags.

"It just kind of tires you out. You move around, get one window fixed and the next window gets full of water," he told AFP. "It's surrounded the whole house now, and it's coming into the garage.

"It will get better, because it can't get any worse," he said.

The Canadian army has deployed 1,650 troops to help stem the flooding, reinforcing dikes, protecting critical infrastructure including water treatment facilities and bridges. Military helicopters and boats also are on standby.

- 'Dealing with imponderables' -

"With this kind of a disaster, it's not where there's a singular event like a dam bursting or a building exploding or a bridge collapsing," commented Public Safety Minister Ralph Goodale.

"This is the gradual building of precipitation where circumstances physically on the ground can change dramatically without notice in a very short span of time. So everybody was dealing with imponderables."

Goodale called it the worst Canadian flood in "50 years" but added that the situation was improving in Ontario, where high water levels in Lake Ontario threatened coastal communities including parts of Toronto, Belleville to the east and the Thousand Islands region, which is home to fabled 19th century mansions and cottages.

"I have never seen so much water between Ottawa and Montreal," Sophie Gregoire-Trudeau, the wife of the prime minister, told broadcaster RDI.

The day before, Prime Minister Justin Trudeau accompanied by his two young children, had traveled to the town of Terrasse Vaudreuil west of Montreal to help locals fill sandbags.

There are "exceptional circumstances" behind the flooding, explained Quebec Environment Minister David Heurtel, pointing to a month of rain coming on the heels of a spring thaw after a "severe winter."

Although it is unlikely to get any worse as of Monday, "the situation will last a few weeks," said Coiteux.

Ottawa Mayor Jim Watson said the recovery and cleanup from this "historic flood" will take time.

Sunday evening, a 37-year-old man and his two-year-old daughter were reported missing after their car veered into a river and was swept away near Sainte-Anne-des-Monts in the Gaspe region of eastern Quebec.

In British Columbia, on the opposite side of the country, the same combination of rain and snowmelt has caused flooding and mudslides that left at least two people missing, including the fire chief of the village of Cache Creek who had been out checking water levels.

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Edinburgh UK (SPX) Apr 27, 2017
Scientists have shown how earthquakes and storms in the Himalaya can increase the impact of deadly floods in one of Earth's most densely populated areas. Large volumes of hard rock dumped into rivers by landslides can increase flood risk up to hundreds of kilometres downstream, potentially affecting millions of people, researchers say. The findings could help researchers improve flood risk ... read more

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