DRAINAGE DESIGN

Drainage systems can be defined as subsurface and surface. Surface drains are designed to remove excess runoff from the land which would otherwise cause localised flooding. Subsurface drainage is designed to remove excess water from the soil mass. Land sewerage systems can be designed for agricultural purpose or for flood alleviation. At Lead Structural, our high experience and trained civil engineers undertake all types of simple or complex drainage designs to suit every kind of project.

The term “sewage” is applied to the contents of sewers carrying the waterborne wastes of a community. Sewerage systems consist of domestic and industrial wastewaters, and runoff from precipitation, safely and economically to a point of disposal. In Britain, a combined foul water sewerage system is most common in urban areas. This means that one network of sewers collects foul sewage and stormwater. Domestic sewage is the discharge from water closets, sinks, baths, and washing machines in the offices, schools, homes, factories etc. Industrial effluent is the waterborne waste of industrial applications. Stormwater sewerage systems handle rainwater.