If you’re in the UK, then you may be wondering: how do you drain a low lying land? Perhaps your house was built on a clay layer that prevents water from draining easily. If this is the case, it’s important to consider aerated soil for improved drainage. Alternatively, you can consider building a deep foundation.
Why low lying gardens flood
Having a garden in a low lying area can be a problem if water can’t drain away properly. In such cases, it’s essential to identify the exact source of the water’s entry so that you can re-direct the water flow. Generally, this involves directing water to the lowest boundary of the garden. However, this problem can be complicated by the underlying hydrology of the area, which is a combination of bedrock, topography, and soil type.
While natural soil and vegetation hold water, manmade materials, such as roads and buildings, do not. Consequently, there are fewer places for water to sit. As areas become more developed, this problem becomes more frequent. Large scale construction and landscaping can also contribute to this issue. This is why many new build estates experience drainage problems.
The best way to avoid flooding is to build your garden on a level plane. This way, water will move through the garden more slowly. If the garden is on a slope, you can regrade the area to create a level plane. Alternatively, you can raise the level of your garden by raising it.
If the water is not too persistent, you can try to reduce the amount of water by constructing raised brick beds. In addition, you can clean the paths and drives to avoid slipping hazards. Lastly, you should avoid digging and raking. This can damage plants and can lead to disease.
Methods of draining a low lying land in the UK
During the 17th century, the fens of Cambridgeshire and Suffolk were subject to floods. In the 1630s, a syndicate of investors with contracts from King Charles I began the work of drainage the low-lying areas. This syndicate employed engineers from the Low Countries to direct the work. Despite the great opposition of locals, the scheme was imposed. The Fen Tigers even attempted to sabotage the project.
One of the most common methods of draining low-lying land is dredging. This process creates a drainage channel or river that conveys water away from land. It also provides navigability and expands river capacity. Low-flowing drainage channels and rivers also keep areas dry and prevent flooding.
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