The Snowy Mountains Scheme consists of 145 km of inter-connected tunnels and pipelines and 80 km of aqueducts.

Broadly the Scheme falls into two sections: the northern Snowy-Tumut Development and the southern Snowy-Murray Development. Both developments are connected by tunnels to the Scheme’s main regulating storage, Lake Eucumbene on the Eucumbene River.

The table below outlines the details of each of the tunnels, from the year of completion to the length of the tunnel.

NAME LENGTH (km) % LINED YEAR OF COMPLETION
Eucumbene-Snowy 23.5 19.7 1965
Eucumbene-Tumut 22.2 28.3 1959
Murrumbidgee-Eucumbene 16.6 17.7 1961
Snowy-Geehi 14.5 13.3 1966
Tooma-Tumut 14.3 20.0 1961
Murray 1 Pressure 11.8 100 1966
Tumut 2 Pressure & Tailwater 11.3 100 1961
Jindabyne-Island Bend 9.8 10.6 1968
Guthega 4.7 11.6 1955
Murray 2 Pressure 2.4 100 1969
Tumut 1 Pressure 2.4 100 1959
Tumut 1 Tailwater 1.3 54.5 1959