During the construction of the Samara Reservoir, a lower part of the Kazanka valley was flooded. A part of the riverbed was separated from the reservoir by dams, creating a new riverbed. In 2008 a project was proposed to fill in a cove in the wide section of the estuary for a business district.
The Kazanka divides Kazan into two equal parts. Six bridges within the city cross the Kazanka; the most notable among them is the Millennium Bridge.