Quote:
Originally Posted by OldDutch
Does anyone know the exact specifics of this flood tunnel?
I always assumed that it was to divert the Elbow only, and not the Bow. Yet today I read this
http://www.calgaryherald.com/news/al...779/story.html
Is this factually correct, or a mistake. The Elbow flows no where near downtown, so I would have to think if this article is taken literally, that this would help mitigate the Bow, therefore helping Bowness, Sunnyside, etc?
If so how? Anyone know?
If not, why the heck are they spending this amount on something that won't help the folks on the Bow?
Just really curious as I have never seen an actual detailed explanation anywhere to date. |
Downtown Calgary and East Village flooded from the elbow River. What happened is the water flowed into downtown via the LRT tunnel and the underpasses to get past the elevation of the CPR tracks.
It is counter intuitive but consider that when the Bow is really high level, water from the Elbow has no place to drain into. One could imagine that if downtown only had to deal with the Bow river high flow, the situation would be more manageable.
Sunnyside's flood was not directly from the Bow river. With the river at a high level the storm drain gates were closed to keep the bow water out. However the communities uphill of Sunnyside still had their storm water running down to the river valley.