Quote:
Originally Posted by Jimmy Stang
Apparently 2005 was our "100-year-flood", and if this is going to top it, we're in for a very serious situation here. I'm not trying to sound alarmist or anything, but I just can't shake the feeling that this is not going to be pretty. At all.
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The 2005 flood was less than a 1 in 20 on the Bow and 1 in 30 on the elbow IIRC.
Quote:
Originally Posted by comrade
So I gather that 1995 was worse than 2005. How much worse? I looked at the city's floodway/floodplain map
http://www.calgary.ca/PDA/DBA/Pages/...inge-Maps.aspx
but what exactly is it saying? If all of the way/plain/fringe spots had water, is that comparable to 1995? 2005? |
The water shown on those maps represent a 1 in 100 year flood. The floodway is where the flowing water level would be. The Flood Fringe is where water would pond and the corresponding step elevations indicate the elevation of flood waters. The overland flow zone is the area that flood waters would bypass the river alignment to shortcut bends and such.