Rowe Channel Upgrade Study Municipal Class Environmental Assessment Schedule ‘B’ Project File August

To the south of Highway 401, the catchment is defined by Henry Street to the west, Dufferin Street to the east, and Front Street West to the south. [...] The existing open channel between Watson Street West and Front Street West would require reconstruction to remediate the failing gabion mattresses, in addition to increasing the depth and width of the channel to allow for peak flows to be fully contained within the channel banks. [...] The existing open portions of the channel, located between Victoria Street West and Watson Street West, and Watson Street West and Front Street West, would be reconstructed to remediate the failing gabion structures and remove sediment that has accumulated along the bed of the channel. [...] Due to the naturalized state of the channel to the north of Victoria Street West, a 50 percent blockage of the grates was considered when completing the preliminary sizing of the intakes to account for a potential build-up of natural debris. [...] This alternative would include the removal of the existing culvert crossing under Victoria Street West, and the replacement of the Watson Street West and Front Street West culvert crossings, therefore reducing the risk of overtopping of the existing roadways.