Well foundation has been used for bridge foundation across rivers in India for centuries because it is required when the system is subjected to high lateral forces and is in practice from olden times. Execution agencies face difficulties in sinking the well foundation if a block of boulders, a hard object, or a change in strata that is unfavorable to sink the well foundation system is encountered. This increases the time required to sink the well foundation to the required design depth. This causes an increase in the overall construction time of the project, which may result in an increase in huge man-hours of work and affect the overall cost estimate of the project. Even in ideal conditions, the sinking of a well foundation for a large-scale project may take 300 to 400 days on average, depending on the construction feasibility and natural conditions. In this case, an alternative structure is proposed that is similar to the structural profile of a well foundation system, namely a diaphragm wall. Diaphragm walls have been used for a long time as a soil retaining structure to allow for deep excavation in the ground and produce excellent results. Because diaphragm walls are built in segments, both the well foundation and the diaphragm wall have reduced stiffness in the circumferential direction. Circular diaphragm walls are used in many projects because the circular system reduces pressure from the earth due to the three-dimensional soil arching effect, allowing the anchor and strut requirements to be ignored. An attempt has been made here to study the behavior of diaphragm wall as a well foundation system with a fill within and a bottom plug using numerical analysis, and to compare the overall performance to that of a conventional well foundation.