Although several studies observed pavement responses after flooding, no detailed quantification has been done to date. This paper has estimated “Design of flexible pavement’s” with the help of “IRC-37, 2012” This was shown through the traffic design v/s thickness of pavement, study of Traffic volume, Traffic count, and calculates traffic design with the help of IRC-37, 2012. (Use IS code formulae), CBR of strong pavement built to high standard is the most flood – resilient, which may be adopted as a pre-flood strategy. Results obtained using CBR in Year 1 over the probability of flooding, and the loss in road strength and service life as well as flood consequences provided similar results. Road authorities should consider changing their roads to flood-resilient pavements in the future.