Reservoirs in Kerala

6 dams in the register, 3.83 billion m³ of live capacity between them.

Capacity register · not a live level

Largest by live capacity

Idukki Reservoir 1.46 BCM Idukki · CWC
Idamalayar Reservoir 1.02 BCM Ernakulam · CWC
Kallada Reservoir 0.51 BCM Kollam · CWC
Kakki Reservoir 0.45 BCM Pathanamthitta · CWC
Malampuzha 0.22 BCM Palakkad · CWC
Periyar Reservoir 0.17 BCM Idukki · CWC

Every dam

Dam	District	Basin	Reported by	Capacity	Full level
Idukki Reservoir	Idukki	West flowing rivers from Tadri to Kanyakumari	CWC	1.460 BCM	732.43 m
Idamalayar Reservoir	Ernakulam	West flowing rivers from Tadri to Kanyakumari	CWC	1.018 BCM	169 m
Kallada Reservoir	Kollam	West flowing rivers from Tadri to Kanyakumari	CWC	0.507 BCM	115.82 m
Kakki Reservoir	Pathanamthitta	West flowing rivers from Tadri to Kanyakumari	CWC	0.447 BCM	981.46 m
Malampuzha	Palakkad	West flowing rivers from Tadri to Kanyakumari	CWC	0.224 BCM	115.06 m
Periyar Reservoir	Idukki	West flowing rivers from Tadri to Kanyakumari	CWC	0.173 BCM	867.41 m

Capacity is normalised to billion m³ per reporting agency: the register mixes BCM and MCM in the same column without declaring which. Full level is metres above sea level, as published.