An auger pile is a type of deep foundation used in construction to support structures. It is created by drilling a hole into the ground using a helical screw or a drill bit, which is then filled with concrete. This method provides stability and load-bearing capacity, making it suitable for various soil conditions. Auger piles are often used in projects where traditional foundations are impractical, such as in areas with limited access or unstable soil. They are commonly employed in the construction of bridges, buildings, and retaining walls, offering a reliable solution for supporting heavy loads.