Micro-Drainage: A Brief Overview
The micro-drainage concept focuses on improving soil infiltration and holding capacity, utilizing a mix of surface drainage and sub-surface drainage solutions, backed by GPS grade control. It involves using 3D modeling technology to guide the reshaping and re-grading of soil, such as by filling depression pockets and creating positive soil grades to control water flow. Narrow underground pipe drains with close lateral spacing further improve the soil’s drainage and overall health.
Combating Urban Flooding
Growing populations and the construction that goes along with them have led to costly instances of urban flooding in recent years. When city landscapes can’t absorb or manage rainfall (often due to water falling on impervious paved surfaces) runoff is left with nowhere to go and flooding occurs. While micro-drainage can’t undo construction, it can help existing soil (such as parks and yards) be better equipped to absorb and drain water to prevent water stagnation and flooding.
Promoting Green Infrastructure
Micro-drainage can also be used to complement other sustainable urban features. For example, when micro-drainage is used for a “green” rooftop with plant life, it can help improve plant health and prevent potential damage to the building that might occur from improper drainage. Micro-drainage can also improve outcomes for city gardens by enhancing soil health.
Economic Advantages
As cities grow, urban planners must consider the long-term impact of construction on water management. By strategically implementing micro-drainage solutions in urban landscapes, municipalities can ensure more efficient drainage that reduces water damage and infrastructure maintenance needs. With proper planning and implementation of micro-drainage solutions, future water-related challenges can be averted.
When properly utilized, micro-drainage offers impressive transformative potential for the cities of the future. By helping address many common water management issues, micro drainage can help ensure a more sustainable approach to urban landscapes.