Introduction
When it comes to drainage systems, there is no one size fits all for a residential, public or commercial area. One of the most effective methods for water removal in these areas is to use a sloping drainage channel. This type of drainage system collects and directs surface water away from an area, preventing flooding and potential damage.
A sloping drainage channel is composed of a channel, usually pre-cast concrete, which is embedded into the ground. This channel generally slopes at an angle of 2-5% which allows surface water to be drawn down the channel and away from the chosen area. The walls and base of the channel often have built-in features such as a reinforced grate or a geotextile filter, which stops larger items from entering the channel and clogging it up.
Advantages of Sloping Drainage Channels
A sloping drainage channel has many advantages over other types of drainage systems. Some of the benefits include:
• Easy to install and maintain compared to other methods of water removal
• Can be adapted to a variety of lengths and slopes as required
• Clear and sediment can be easily removed by hand or machine with minimal effort
• Re-enforced grates, which are especially useful when the channel is being used around cars or traffic
• When installed correctly, the channel can last for decades
• The walls and base of the channel can be designed with texturing or patterns for aesthetics
Disadvantages of Sloping Drainage Channels
There are some disadvantages to sloping drainage channels that must be considered when installation is being considered. These include:
• Steep walls can create a hazard for small children or pedestrians as they can become slippery
• The installation of a sloping channel may cause erosion to nearby soil as the surrounding soil and stone is moved during the installation
• The channel may need to be built to withstand significant water flow
• The construction cost may be greater due to excavation and concrete placement
Conclusion
Sloping drainage channels are an effective solution for collecting and managing surface water. With its ability to be adapted to a variety of lengths and profiles, it can be used in both residential and commercial applications. Although installation and maintenance costs may be higher compared to other methods, design characteristics and materials can be selected to ensure that the system is both effective and aesthetically pleasing.
