Civil Insight: A Technical Magazine Volume 3 | Page 66

Tandon S.S. et al.
Civil Insight (2019) 64-70
Table 1. Coefficients for computation of region 3 (Department of Irrigation, 1990)
Months
Coefficient
(Region 3)
Jan Feb Mar Apr May Jun July Aug Sep Oct Nov Dec
2.47 1.82 1.35 1.00 0.82 1.29 4.71 20.59 17.65 7.65 4.82 3.53
Fig. 2. Site location of Upper Kushadevi Water Mill
Fig. 3. General layout of the water mill site based on topographic survey prepared using
AutoCAD (AutoCAD, 2017)
The data obtained from the hydrological survey are provided below:
x
x High Flood Level, HFL of Roshi River = 1.7m
High Flood Level, HFL of Ghyalku River = 0.8m
(As per local people and water marks, as the river
is un-gauged)
x
x Mean River Depth of Roshi River = 0.4m
Mean River Depth of Ghyalku River = 0.25m
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Discharge in Roshi River
x 0.240m 3 /s (May 25, 2018, 3:45 pm)
x 0.240m 3 /s (June 29, 2018, 1:30 pm)
Discharge in earthen lined canal
(above the confluence point)
x 0.147m 3 /s (June 29, 2018, 1:30 pm)
Discharge in Ghyalku River
x 0.142m 3 /s (July 20, 2018, 11:45 am)
x 0.146m 3 /s (July 28, 2018,1:20 pm)