Reservoirs in Tamil Nadu

6 dams in the register, 4.23 billion m³ of live capacity between them.

Capacity register · not a live level

Largest by live capacity

Mettur Reservoir 2.65 BCM Salem · CWC
Lower Bhawani \ Bhavanisagar Reservoir 0.79 BCM Erode · CWC
Parambikulam Reservoir 0.38 BCM Palakkad · CWC
Vagai Reservoir 0.17 BCM Theni · CWC
Sholayar Reservoir 0.14 BCM Coimbatore · CWC
Aliyar Reservoir 0.10 BCM Coimbatore · CWC

Every dam

Dam	District	Basin	Reported by	Capacity	Full level
Mettur Reservoir	Salem	Cauvery	CWC	2.647 BCM	240.79 m
Lower Bhawani \ Bhavanisagar Reservoir	Erode	Cauvery	CWC	0.792 BCM	278.89 m
Parambikulam Reservoir	Palakkad	West flowing rivers from Tadri to Kanyakumari	CWC	0.380 BCM	556.26 m
Vagai Reservoir	Theni	East flowing rivers between Pennar and Kanyakumari	CWC	0.172 BCM	279.2 m
Sholayar Reservoir	Coimbatore	West flowing rivers from Tadri to Kanyakumari	CWC	0.143 BCM	1002.79 m
Aliyar Reservoir	Coimbatore	West flowing rivers from Tadri to Kanyakumari	CWC	0.095 BCM	320.04 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.