'REPORT ON THE ADMINISTRATION OF THE BOMBAY PRESIDENCY FOR THE YEAR, 1910-1911' [‎265v] (114/150)

BOMBAY ADMINISTRATION REPORT.
uo-
lainfall.
Desert Canal.
Unharwah.
Begari Canal.
Mahiwah,
Sukkur Canal.
Ghar Canal.
Sattah.
y ear , and
°n the
Chap. IV . 74
DISTRACTION. ^j-j^^ugust 8 to a 5th^ 1 S^ptember^ ajainst 3^ ^ys of the previous
average of ^y get on Ae Kotri gauge was first registered
June a^ thisTevd was maintained for the following penods dunng the season
8th June to 30th, and 7th July to 24th September,
or a total of 103 days, the highest number of days on record, against 80 days in i 9 o 9 , and
average of 51 days during the previous 10 years. ., ^ .
The highest readings for the year were 14-5 on 4 th . September on the Bukkur gaug e)
22*3 feet on g the 8th September on the Kotri gauge, against 14*4 and 20-8 on these g a
respectively, in the previous year.
^ir
5th
an
Western Nara.
an
and
ectively, in the previous ycd.i. .
The rainfall of the year was excessive. It acted beneficia y in some places, but did SOffi
harm on canals without head regulators to reduce the supply in the canal when not req uire
forTrrigation. It amounted to 9 '. 3 ", as compared w.th 5-20 m the previous year, and i,
average of for the last 10 years.
Indus Right Bank Division.
The Desert Canal was opened on ist June 1910 , and for the year under report experienced
a really oood season. The erosion at its mouth continued throughout the season, in consequence
of which it was difficult to keep the regulator entirely clear of rubbish, though a gang of meil
with a boat had been posted for the purpose. On account of the late arrival of the iron work
from England, horizontal baulks for the existing wales and vertical needles could not be
substituted. The tail of the canal received a much better supply than in former years owing
to its clearance. All branches, with the exception of Toj Rajwah and Distributary No 2 ,
ex Frontier Rajwah, where there were complaints of deficiency at their tails, worked
exceedinffiy well. The hill floods from the Shori Nai came down three times during the season,
but did very little damage to crops on the Adiowah, as the ^ zemindars have practically ceased
kharif cultivation on the north of that canal. The modified form of Chenab pattern outlet
sluices worked well in giving a better distribution and checking waste of water. It is however
not popular with Baluch zemindars, as they do not understand its advantages. The canal
system, on the whole, received a fair rabi supply, but the sudden fall of the river in September
was responsible for less than the usual rabi area.
The Unharwah was opened on 6 th June i 9 io, and received a very good supply in spite of
the heavy erosion at its mouth. The Head Regulator, the Inspection Bungalow at Draha, and
several other buildings were carried away by erosion. This Draha bungalow had been the
Abkalani “head-quarters of the Executive Engineer, Begari Canals, for the past 16 years. The
Tori Stop Gate is now the Head Regulator for the canal.
Of the branches, all received a good supply except the tail of the Nasirwah, where water
was deficient. It is proposed to remedy this by reducing sluices in Dubi Dhoro, and in the
middle reaches of the canal. The Kharirowah Distributary, ex-Mile 8 / 2 , with outlet
sluices of the Chenab pattern, worked excellently ; but the Hazarowah, another distributary
at Mile 13 / 2 , was not so successful, owing to the treacherous nature of its banks which were
constantly breached.
The Begari Canal was opened on ist June 1910 , and the supply till September was good.
For the first time, for many years, it derived its supply from the Wadhu Dhand instead of from
a back water from the river. Owing to the sudden fall in the river early in September, the
Dhand ” silted up with the result that the supply was almost entirely cut off, and the rabi
crop seriously affected. The modified Chenab pattern of outlet sluices worked very well, and
gave an improved supply to the tail portions, where, owing to deficiency, complaints were
frequent. The revised Choi Project was sanctioned, and the work on distributaries was pushed
forward. This canal, with several distributaries, has been opened in the current Abkalani.
The Mahiwah was opened on ist June 1910 , and worked satisfactorily throughout the
inundation. The revised project for improving the distribution and giving greater fading
for communication was sanctioned during the year under 49 , Productive Public Works, an
the works are in progress.
The Rahuja head of the Sukkur Canal was opened on the 6 th June 1910 . It worked very
well during the season, and gave a good supply throughout. It was found unnecessary to opt
the “ old head ”, as the Rahuja head provided a sufficient supply for all requirements.
The Ghar Canal was opened on the 28 th May 1910 , and the supply during the year was
the whole very fair. There was a little deficiency at the tail portions, which was relieve ^
frequent rotations. The Fordwah was opened on 14 th June 1910 , and worked well. 1 e
feeder given it last year brought a good supply.
The Sattah Canal has its off-take from a “ Kohri ” which in turn is fed by a cut ^
left bank of the river in the Shahbunder Sub-Division of the Karachi Canals District. 1
again silted heavily in the inundation and was cleared. The canal worked satisfacton
the area cultivated was more than last year. A small area, chiefly in the low-lyiaff an ’
however, submerged owing to the abnormal rain of July 1910 . ^
The stop bund at the mouth of the Western Nara was removed on the 25 th May 19
the canal worked on the whole satisfactorily aided by its two feeders. The tail of the A 1