Impervious Surfaces
Unofficial and independent
local neighbourhood directory or portal
to locate impervious surface links and information about
impervious surfaces for the suburban community of
Sunnybank, Brisbane, Queensland, Australia.
Impervious surfaces can be generally defined as any material of natural or anthropogenic source that prevents the infiltration of water into soil, thereby changing the flow dynamics, sedimentation load, and pollution profile of storm water runoff. The growth of impervious surfaces is directly related to human activity and habitation through the construction of buildings, roads, car parks, footpaths, and so on. As precipitation is diverted from possible soil infiltration, the unfiltered flow over the impervious surface allows significant increases in water runoff, as well as a rise in the acquisition and retention rate of chemical contaminants and sediments from anthropogenic sources. The subsequent surge in the flow rate and volume in the receiving stream brings about an enlargement of bank-full and stream scour events and significantly influences the morphological structure.
Changing the soil's cover from natural vegetation causes many downstream changes and underground changes. The future belongs to those who recognise these changes and manage these changes for the future.