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NEW PLANS FOR IRRIGATION 197
over the edge into the valley below. In two places there were
trees at the bottom ; otherwise the hillsides were brown and
bare. The descent was steep. A slight landslide håving
destroyed the driving road near the bottom, wc walked
northwards along the valley to the place for the intake of
the projected canal, about 7 kilometres from Kanakirr. It
was i,200 metres above sea-level ; and the dam was to be
3 • 3 metres high and 2 5 metres long.
At that time the idea was to build only one intake canal,
which would be carried for about 10 kilometres southward
along the steep slope on the lett side of the river until it
reached the top of the descent, after which it could be
continued for 30 kilometres across more level ground, spread
ing the water by numerous branches all over South-east Kirr,
which is bounded on the south by the river Garni-chai.
The total length of the main canal and its branches would
then have been nearly 100 kilometres. From this large main
canal some of the water was to have been conveyed in a big
pipe to the west side of the Zanga Valley, continuing thence
in another canal. In order to avoid the severe internal
pressure in the pipe if it were carried down into the valley
and up the opposite side, Mr. Dupuis suggested carrying it
across on a suspension bridge ; but he was in favour of doing
without the pipe altogether if an alternative could be found.
Since then the plan detailed above has been abandoned.
Instead, a second canal will be constructed from the intake
dam on the steep right-hand side, along which it will have to
continue for 7 kilometres until it can turn in across more
level ground ; then, at a distance of about 1 2 kilometres
from the intake, it can be prolonged westward for about
20 kilometres through North-west Kirr to the river Abaran
su, the water being spread over the country by a network
of channels. The aggregate length of the main canal and
its branches will be about 210 kilometres.
The country here slopes in a south-westerly direction
towards the Abaran-su, by which it is bounded on the west,
while South-east Kirr slopes to the Garni-chai and Zanga.
This will make it easy to dram and run off superfluous water
from the irrigated areas, an important point, since the water
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