Published Paper Details:

The hydraulic performance of culverts on Indian roads is influenced by backwater conditions. This paper investigates the hydraulic efficiency of rectangular and arch culvers in the specific context of Indian road conditions. The primary objective of the study is to evaluate the performance of widening and enhancing drainage on Indian highways. This study uses numerical simulations to assess the hydraulics of large-diameter and narrow-segment canals. The secondary objective is to investigate how the hydraulic performance is impacted by different backwater environments. The main objective of this paper is to compare the hydraulic performances of rectangular, arch, and narrow canals in the context of the Indian road condition. A case study is presented on the environmental assessment of fish passage through a narrow channel. The results are compared with the results of a case study in which a fish passage is simulated under a wide channel. It is found that a large proportion of the fish passages in a single channel are culverted. The hydraulic efficiency is a function of the backwater condition. The analysis of hydraulic efficiency reveals that the hydraulic characteristics of the narrow channel have a significant impact on flood mitigation. The study provides valuable insights for civil engineers, transportation planners, and policymakers involved in road infrastructure development and management in India. This work contributes to the understanding of how hydraulics can be evaluated for flood mitigation in the Indian context, providing valuable insight for highway engineering, transportation planning, and decision makers involved in flood management efforts in rural areas of India.