Proceedings of IAHS
Proceedings of IAHS
PIAHS
Articles | Volume 387
Articles | Volume 387
https://doi.org/10.5194/piahs-387-65-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/piahs-387-65-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 387
Post-conference publication
 | 
18 Nov 2024
Post-conference publication |  | 18 Nov 2024

Backwater effect in lowland regions due to bridge structure: a case study of Shreekhandapur, Kavre, Nepal

Rizbi Buddhacharya, Sailesh Maharjan, Rupesh Choudhary, Shyam Sundar Khadka, and Santosh Chaudhary

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Short summary

Our study examined the backwater effect due to bridge piers in lowland areas. The results showed that replacing the old bridge with a new design featuring fewer and narrower piers, along with a higher deck level, reduced the backwater effect and flood levels. Also, using a 3 m floodwall upstream further decreased inundated area by over 50 %. These findings highlight the consideration of environmental factors in bridge design to mitigate flood risks.

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