Abstract
An outline of the results of investigation into the damage and reconstruction of foundations of railway structures is presented in this paper prepared by committee members of the Japanese Geotechnical Society. The foundations of elevated bridges near a quay or a river levee moved and inclined due to the movement of the surrounding subsoils. Mat foundations for an elevated rigid frame bridge did not undergo damage whereas meshed cracks or complete shear failures were found in the piers below the ground surface. Cracks were found frequently at the top of the pile foundations for bridges supported on one-pier.