Comparison of Water Level of Natural and Modified Section of Vishwamitri River using HEC-RAS
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International Journal of Engineering Trends and Technology (IJETT) | 
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| © 2017 by IJETT Journal | ||
| Volume-47 Number-6 |
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| Year of Publication : 2017 | ||
| Authors : C.V.Padalia, T.A.Raval, F.P.Parekh, T.M.V.Suryanarayana |
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| DOI : 10.14445/22315381/IJETT-V47P253 |
Citation
C.V.Padalia, T.A.Raval, F.P.Parekh, T.M.V.Suryanarayana "Comparison of Water Level of Natural and Modified Section of Vishwamitri River using HEC-RAS", International Journal of Engineering Trends and Technology (IJETT), V47(6),329-335 May 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
Abstract
The flood coming within the city has
many primary effect such as loss of life, damage to
buildings and other structures, including
bridges, sewerage systems, roadways, and canals.
As a result of which the study of flood for the river
passing through the city is very important and so the
study area of the present study is as follows. The
study area includes Vishwamitri River, which is been
located within the heart of the Vadodara city. The
specific area to be studied of the Vishwamitri River
is from chainage 15200 metre to 0 metre starting
from NH-8 Crossing beyond Atladra Bridge. The
objective of the study is to analyse the water surface
elevation of natural river reach and then modifying
the natural river reach cross-section into
trapezoidal cross-section for 805 cumecs discharge,
which was maximum flood observed by Vadodara
city in 2005. After modifying the natural river reach
section to trapezoidal section its maximum discharge
carrying capacity is been found out and all this
analysis and modification is done using the software
HEC-RAS. Then by using Gumble’s method flood
frequency analysis is done to find the flood of
specific return period for which modified river reach
is safe. For maximum discharge carrying capacity of
trapezoidal section and For maximum flood of 805
cumecs discharge observed by Vadodara city,
Clearance between bottom of deck and water
surface elevation available at all the bridges within
the reach is been analysed for natural as well as
modified trapezoidal section.
References
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Keywords
Water level, flood, cross-section, river
reach and HEC-RAS.