Channeling system

What is the channeling system?

The channeling system is a system of channels and subterranean pipeline designed for collecting rain-water (surface runoff) and to remove it, out of the municipal boundaries  area.

The system is planned to collect and transfer large quantities of water in short piriod of time, therefore, it is constructed from large-diameter pipes: starting from a diameter of 50 cm. in the urban channeling network, and up to 7 square meters in the main conduits, and by their means, discharging the water into the wadis (Vallyes) outside the municipal laundries  . The system can be likened to a tree with narrow branches (pipelines) that continually widen as they reach nearer the trunk. The length of the channeling lines in Jerusalem is approximately 400 km.

Why is channeling required in the municipal area?

Urban (city) development has the affect that most of the city area is covered in buildings, roads and pavements that do not allow rain water to precipitate  into the ground. This water drains from buildings roofs and courtyards into the roads and to low-lying areas. 
The channeling system is designed to prevent harm to people and property from flooding such as:
Flooding of buildings.
Flooding of vehicle and pedestrian traffic routes.
Flooding of public areas, e.g. parks, shops, underground car-parks.
Surface run-off reaching the sewage system and treatment plant.
Damage to infrastructures.

How can one reach a channeling fee payment settlement?
In order to be lenient to residents, the channeling fee can be paid in one of the following ways: 
A.      Cash payment within 45 days from the date of charge, at a discount of 7.5%.
B.      6 equal payments without interest or linkage.
C.      12 payments, with linkage only – without interest.
D.      15 equal payments, without interest and without linkage for those who receive a discount on their municipal property rates of 40% and above.

What is the channeling system?