Sometimes, posters here have asked about why the flood risks upstream of Eastern Avenue aren't more mitigated by this project than is the case.
There are a complex series of reasons at work, that expedited exit flows don't fully address, including the very straight forward issues of water volume exceeding channel capacity and low-lying infrastructure (particularly the lower portions of the DVP and Bayview Avenue)
But in the course of my walk yesterday I saw a further example of why problems occur that's worth a look-see. (photo taken Sept 28th, 2021)
The impact of an unfortunately placed support pier:
As you can see, it's catching a great deal of debris.
That debris, which is below the waterline, as well as above it, severely impacts flow-rates, and can cause water to back up, and/or go 'around' by climbing the banks in the immediate vicinity of the pier.
During future reconstruction both of the Gardiner, but also the Eastern Avenue overpass, every effort should be made to remove piers from the water; and alternatively to substantially reduce their barrier function, allowing better free-flow conditions.