To ascertain if the soil would be suitable to support civil engineering projects, a subsoil analysis of a planned development site in the Purnea district of the Indian state of Bihar was conducted. Trial pits were dug as part of the inquiry, and samples from affected and undisturbed areas were collected for laboratory examination. The results of classification tests revealed that silty sand (SM) and non-plastic sand, both of which are present in about equal amounts, make up the remaining half of the soil samples that were examined (Ansari, M.F, 2020). The soil has minimal plasticity qualities, according to analysis. This suggests that there is little chance of expanding and shrinking when wet and dry, which might negatively affect the stability of buildings built on top of them (Gwozdz-Lason, M.2017) [2]. As a result, the soils have fair to excellent engineering qualities required for building work, and they have a moderate strength sufficient to support typical civil engineering structures with a mean net safe bearing capacity of q(ns).