12-22-2015, 10:39 AM
I imagine the dams upstream have changed the river flow a lot but I would guess they also trap a lot of sediment over the years that would have flowed downstream too. The pond at Vic Park flows better since they made changes to the canal upstream of it and once (if?) they finish naturalizing the creek between Westmount rd. and Vic Park I think the water quality will improve even more. There's a documentary on netflix called "Dam Nation" that I found really informative about some of the effects of damming on rivers. I'm not old enough to remember the big flood of 70s but it seems clear to me that dams and dikes have mostly prevented something that dramatic from happening again.
The GRCA site has lots of great information about the history of the river and I think they are largely responsible for the amazing rehabilitation of the river.
The GRCA site has lots of great information about the history of the river and I think they are largely responsible for the amazing rehabilitation of the river.