Drainage – system of pipes and channels to collect and remove rain water from the roads and pavements and to channel it away, out of the city, or, alternatively, to pour it into the earth to enrich the groundwater.

What is drainage needed for in the local authority area?

-          Preventing harm to people and property.

-          Preventing flooding of vehicle and pedestrian traffic routes (roads and pavements).

-          Preventing flooding of public areas such as: parks, shops, underground car-parks.

-          Preventing flooding of buildings

-          Preventing the intrusion of rain-water into the sewerage system, and its reaching the treatment plants.

-          Preventing erosion and damage to infrastructures.

What is “water preservation construction”? 

Construction aimed to prevent the loss of rain water from surface of closed-in areas e.g. roofs, car-parks, roads and pavements, and recharge it into the ground to enrich the groundwater.

Recharge the rain-water into the ground contributes to the water economy both from the quantitative and qualitative aspects

Reduction in the quantity of rain-water that reaches the municipal and regional drainage systems enables the sizing down of the drainage system diameter  and, therefore, also the costs of financing its construction and maintenance.

Prevention of damage to the environment and the landscape likely to be caused by erosion, and prevention of contamination.