06/28/2013 01:08 EDT | Updated 08/28/2013 05:12 EDT

Calgary Power Grid Could Be Restored By Saturday Morning

Calgary Mayor Naheed Nenshi is pleading with people to be wary of the fast-moving Bow River ahead of the long weekend.

Speaking at the Emergency Operations Centre (EOC) on Friday, the mayor warned Calgary residents to stay away from waterways and paths as the city heads into the Canada Day weekend.

"Don't be a Nenshi noun," he said, referring to a social media hashtag that went viral after he struggled to find appropriate words to describe people caught canoeing on the Bow River during the flood.

Although flow rates at the Glenmore Dam are roughly 10 per cent of what they were at the peak of flooding last week, the Bow River is still dangerously fast, Nenshi said.

Canada Day fireworks will still launch from Centre Street Bridge on Monday, but people should not gather on riverbanks to watch.

The mayor said the expensive investments made in the city's water treatment facilities prevented boil-water orders.

"If this had happened in 2005, we would have had boil-water orders every day," Nenshi said.

Outdoor water restrictions remain

With the Canada Day weekend set to be a scorcher, Calgary residents will be allowed to use watering cans to hydrate their plants and lawns, but officials are asking that people continue not using hoses or sprinklers.

The city will also be moving evacuees out of existing centres to William Aberhart High School, Central Memorial High School and the University of Calgary.

Calgary’s power grid is expected to all be online, as of Saturday morning.

“I am guardedly optimistic that by this time tomorrow morning we can report that the entire Enmax system has been restored,” said the Calgary energy company's CEO, Gianna Manes.

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However, some individual homes and business will still not have power, warned Manes.

As many as 12,000 residents are still out of their homes, and Friday the director of the Calgary Emergency Management Agency warned that it could stay that way “for a long time.”

Bruce Burrell made the prediction Friday morning at a press briefing where he also noted that while floodwaters have receded greatly, the Elbow and Bow rivers are still at the levels they reached during the flood of 2005.

Calgary remains in a state of emergency for at least another week as officials continue to try to restore services to affected areas and get residents safely back into their homes.

“We’re only in preliminary stages of building assessment. There are some homes that we have already had engineers go out and look at because they’re the ones that are more precarious,” he said.

It is expected to take five to seven days for officials to estimate how many houses will be condemned because of flood damage, the mayor said Friday.

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“We are starting to put some black dots on the map. Black means the home cannot be restored or recovered.”

Hundreds of specialists, including some brought in from Vancouver and Edmonton, are conducting the assessments.

At the peak of last week's flooding, the confluence of the Elbow and Bow rivers had a flow rate of 2,750 cubic metres per second, Burrell said. Normally in June the flow of the Bow River would not even reach 300 cubic metres per second, according to Alberta Environment and Sustainable Resources Development.

Officials announced Friday that private businesses can now request help from city crews to pump out flood water.

Crews are already providing the service for homeowners.

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