Volume estimation of borrow pits is common application in civil Engineering. Several
methods for volume estimation have been presented in literature. In general, they rely on a
specific polynomial to fit the surface heights. Practically, each site’s topography is unique
and may not follow that polynomial. In this paper, regression analysis to find the most
suitable equation that fit each site is presented. Using numerical examples, results from the
proposed approach are presented and accuracy compared with existing methods.