Storm Water Drains

The existing drainage condition of Coonoor consists of natural river and man – made drainage system (Strom water open drains). Due to the nature terrain condition, all the man – made Strom water drains are connected with natural river system Coonoor River.

The present condition of Strom water drains also carries the sullage and sewage water, which ultimately carried by the Coonoor River in the down steams area and mix with the Bhavani River. This pose a health and environmental hazard to the natural water system need to be addressed through a proper treatment facility for the sewage water let into Coonoor River. This aspect requires immediate attention as the river water is also used by the wayside villages for drinking purpose.

Altogether the existing Strom water drains characterized by the low carrying capacity due to encroachments in the urban area, which reduces the regular flow and add constraint to the existing drainage system.

Municipal Strom Water Drainage System

In nature the Coonoor town has steeper slopes, which drain the Strom water. Moreover, the Urban Local Body also provides pucca water drainage facility in the major portion of the town. The existing Strom water drains mainly carry the wastewater disposal and in many places the Strom water drains are functioning as wastewater drains, which create environmental problems and need regular maintenance by the ULB, is show in Table.

The information provided in the above Table indicates that nearly 48.40% of the roads are provided with Strom water drainage facilities and the rest of 51.60% roads are not provided with drains, which are drained through available natural terrain condition. The observation relating to Strom water drainage facility indicates inadequate planning and designing, as majority of the drains are provided in bits and pieces without any integration between the drains, this is due to the presence of scattered development and undulated terrain condition in Coonoor town.