TENA - Directorate of Watershed and Soil Conservation, Rajasthan ...

DESIGN OF VEGETATIVE BUND IN ARABLE LAND
V.I = 0.305 (XS+Y)
0.305(0.8 x 2+1.0)
V.I = 0.549
V.I Vertical interval
X= Rain Fall Factor 0.8 0.8
Y= Factor due to soil infiltration & Crop cover 1 1
S= Percent slope 1 2
He= (Re x VI) 1/2
(50) 1/2
He= 0.6199 Say 0.60 m
He Depth of impounding
Re 24Hour rainfall excess in Cms. for 10 year recurrence interval 35
V.I Vertical interval 0.549
Total Height of Bund = 0.6 + 0.4 1.00 m
Top width of Bund = 0.6 m
Bottom width of Bund = 3.1 m
Cross section of bund = (Top width of Bund +Bottom width of Bund) x Height
2
X Section= ( 0.60+3.1) x 1.00
2
X Section= 1.85 Sq.m.
IWMP JODHPUR 42 TENA