'REPORT ON THE ADMINISTRATION OF THE BOMBAY PRESIDENCY FOR THE YEAR 1903-1904' [‎100r] (87/112)

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1903-1904.] IRRIGATION* 63
and nearly completed, the expenditure being Es. 6,166 against the estimate o£ Es. 6,617.
The object of this survey is to determine the area of land available for cultivation in the
event of a water-supply being provided for it. The Eastern Delta Canal Survey was also
commenced, the expenditure being Rs. 503 against an estimate of Es. 4,278.
The river bunds in this Division were maintained at a total cost of Es. 3,010. The
most important are the Hajipur and Jamshora Bunds in the Euleli Canals, and the Naulakhi-
Bhorti Bund in the Northern Hyderabad Canals District. During the inundation water
stood against the whole length of the Hajipur Bund but no breaches occurred though in
places the bund was slightly damaged by wave wash. Slow but steady erosion has been in
progress in front of this bund near the Hasanali Canal mouth but it has not. been sufficient
to necessitate the construction of any reserve loops.
As it was evident that the Naulakhi-Bhorti Bund must be cut by erosion a loop from
mile 1 to mile 4 was commenced last year, and completed this year at a cost of Es. 35,058
of which Es. 20,073 was spent during the year. As the erosion continued downstream, it
was necessary to extend this loop to mile 6, and Es. 4,645 was expended on this work
during the year.
Indus River Commission*
No hydrographic surveys were made during the year, but river bank and current
surveys were carried out in various portions of the river for a length aggregating 230
miles in all.
Discharges were measured regularly at Sukkur and Kotri throughout the inundation
season and at intervals during the cold weather, the velocities being taken by means of
Haskell Current Meters.
The maximum discharge measured at Sukkur was 592,147 cubic feet per second on
18th September 1903 when the mean velocity was 9*18 feet per second and the Bukkur
Gauge read 15*3 feet. The maximum gauge reading for the season at Bukkur was 17*1 on
the 22nd August 1903. It was unfortunately impossible to measure the discharge on that
day owing to the launch being temporarily out of order, but it is estimated at 800,000 cusecs.
The minimum discharge measured at Sukkur was 31,360 cubic feet per second on the
1st April 1903 when the mean velocity was 2*85 feet per second and the Bukkur gauge read
3*4 feet. The lowest reading for the year was 1*5 on the 1st March 1904.
A comparison of the discharges of the river at Sukkur during the months June to
September in 1901 to 1903 is given below :—
Month,
1901.
1902.
1903.
Cusecs.
Cusecs.
Cusecs.
June
July
August
September
5,541,000
8,324,000
15,394000
7,605,000
6,383,000
7,452,000
6,466,000
5,009,000
5,473,000
8,318,000
18,386,000
9,819,000
Total ...
36,864,000
25,310,000
41,496,000
Average daily discharge ...
Maximum discharge
Minimum „
302,164
699,184
127,985
207,459
475,225
86,000
340,131
592,147 '
148,831
Minimum discharge of the year
63,219
18,947
31,360
The minimum quantity of silt in suspension observed at Sukkur was 250 grains per
cubic foot of water at 0*33 foot below surface on 23rd April 1903, the minimum observed
in the previous year being 150 grains.
The maximum quantity observed Was 2,445 grains per cubic foot on the 27th July 1903
at 16 feet below surface, the maximum observed in the previous year being 2,647 grains*
The estimates sanctioned under f Extensions and Improvements ’ were :—*
Regdri Canals — Us.
Widening channel of the Sind Dhoro above its
Head Regulator in mile 29-4 of the Kashmor
Bund ... • ... ... ... 861
STiiJcdrjour Canals-—
Constructing double groynes, Tulsi Dhand Bund ..* 2,378
Ghdjf Canals —
Extensions and improvements to Mithu and Phulu
Bund ... ... ... 1,583
Chap. IV*
PRODUCTION
AND
DISTRIBUTION*
Bunds.
Surveys*
Discharge of the
Indus.
Silt experiments.
Extensions and
improvements.