Comparison Between the Soil Properties of the Coastal and Interior Regions of Gujarat Param Shah and Manas Kumar Bhoi Abstract Constructions in the coastal region have been a huge challenge in the civil engineering world for long years, and so, a solutions for the same have to be devised. To study this problem, this paper deals with the soil properties of some coastal belt places of Gujarat region and the soil properties of the non-coastal region of Gujarat. Gujarat’s soil type has a wide range of classification, and so, the different properties like the N-value, type of sample, the depth at which the sample are obtained, type of soil in that region, depth of water table, moisture content, field dry density, the Atterberg limits are studied. After studying these properties from the soil reports obtained from various laboratories, a comparison is made between the soil at coastal belt region and non-coastal belt region of Gujarat and the variation is observed in the various properties. Considering, a school building at Hathab, which a coastal belt location, the N-value varies from 10 to 20 blows in a 6 m considered depth. While considering a building at Bhavnagar district, which is away from the coastal area, the N-value varies from 12 to 23 blows in a 6 m, considered depth. While considering the dry density at Hathab, it varies from 1.48 to 1.62 g/cm 3 , and the dry density at Bhavnagar district varies from 1.47 to 1.49 g/cm 3 , considering 6 m depth. These differences need to be studied, and it will helpful in designing suitable design solutions. Thus, this paper may contribute in future research studies to improve and strengthen soil properties of the coastal region. Keywords Coastal region · Non-coastal soil · N-values · Dry density · Silica · Atterberg limits · Design solutions 1 Introduction From the evolution of the construction industry, new challenges have always emerged and the solutions to it have always been tried out. One of the major problems in the construction industry is the construction of structures in coastal region by constantly P. Shah · M. K. Bhoi (B ) School of Technology, PDPU, Gandhinagar 382007, Gujarat, India e-mail: manas.bhoi@sot.pdpu.ac.in © Springer Nature Singapore Pte Ltd. 2021 S. Patel et al. (eds.), Proceedings of the Indian Geotechnical Conference 2019, Lecture Notes in Civil Engineering 133, https://doi.org/10.1007/978-981-33-6346-5_8 83