|
Basin area, km2
|
:
|
497
|
|
Basin area in Kerala State, km2
|
:
|
497
|
|
District of Kerala in which basin are located
|
:
|
Thiruvananthapuram
|
|
Origin of River
|
:
|
Agasthya Hills Elevation.m : 1860
|
|
Length of main stream, km
|
:
|
56
|
|
Main tributaries
|
:
|
Kallar, Karavaliar
|
|
Average annual rainfall, mm
|
:
|
2300
|
|
Average annual streamflow, Mm3
|
:
|
207
|
|
Important rainguage stations marked on the map (with code numbers)
|
:
|
1. Neyyar Dam (1)
2. Neyyattinkara (2)
|
|
Important discharge stations marked on the map (with code numbers)
|
:
|
1. Ottasekharamangalam (1)
2. Amaravila (2)
|
|
Water requirement for wetland for three crops, Mm3
|
:
|
412
|
|
Water requirement for gardenland , Mm3
|
:
|
90
|
|
Water requirement for domestic use (2021 AD), Mm3
|
:
|
94.1
|
|
Water requirement for industrial use (2021 AD), Mm3
|
:
|
45
|
|
Existing major/medium irrigation projects(Commissioned)
|
:
|
Neyyar
|