Quote:
Originally Posted by Rhettzky
Exactly. Peak on the Elbow going into the reservoir was 1,240 cubic metres per second. Which was the equivalent of a 1 in 500 year flood event. We were able to significantly drain the reservoir and intentionally flood downtown before the peak flow hit. When the peak hit it filled the reservoir in a couple of hours. The lead flood engineer described it as trying to catch the water from a fire hose with a tea cup.
|
The tunnel to handle a 1000 m^3/s flow is 10m by 10m which is a pretty big tunnel. About 1/3rd of the width of the airport tunnel but slightly taller, and significantly longer.
These water flows that the flood had are tough to comprehend.