As part of Markham’s Flood Control Program, a Class Environmental Assessment was initiated on the Don Mills Channel.
The Don Mills Channel is a small man made channel that runs through the commercial / industrial area in the Woodbine Avenue and Denison Street area.
Several of the private properties and roads in this area are prone to flooding during large storm events.
The environmental assessment aims to:
That the City's flood control strategy adopt a 5 year level of service target for Don Mills Channel drainage system based on its original design and consider other options, subject to technical feasibility and approval as part of a future Class EA;
The current system of open channels and culverts does not have adequate capacity to handle storm water runoff during large storm events. Businesses surrounding the Don Mills Channel have flooded numerous times since the land was developed in the 1970’s. Major roads in the study area, including Woodbine Avenue, can be impassable during severe storms.
The Don Mills Channel study area was realigned and confined to a relatively narrow channel corridor through urban development. Significant portions of the Don Mills Channel were also piped through some of the older development sites in the study area.
Don Mills Flood Reduction Schedule