|
Basin area, km2
|
:
|
642
|
|
Basin area in Kerala State, km2
|
:
|
642
|
|
District of Kerala in which basin are located
|
:
|
Kollam , Thiruvananthapuram
|
|
Origin of River
|
:
|
Madathurikunnu Elevation.m : 240
|
|
Length of main stream, km
|
:
|
56
|
|
Main tributaries
|
:
|
Vattaparambu,Kundumanthodu, Vattamthodu, Kulanjethodu
|
|
Average annual rainfall, mm
|
:
|
2400
|
|
Average annual streamflow, Mm3
|
:
|
489
|
|
Important discharge stations marked on the map(with code numbers)
|
:
|
1. Ayoor (1)
2. Ithikkara (2)
|
|
Water requirement for wetland for three crops, Mm3
|
:
|
343
|
|
Water requirement for gardenland , Mm3
|
:
|
150
|
|
Water requirement for domestic use (2021 AD), Mm3
|
:
|
103.5
|
|
Water requirement for industrial use (2021 AD), Mm3
|
:
|
45
|
|
Navigable length of river, km
|
:
|
16
|