Seawall footers is a necessary foundation to the strength of your seawall. Often preventative measures to reduce further eroding or failing seawalls is repairing or re-installing a seawall footer. Seawall footers is a low cost alternative that helps the eroding and washout of the seawall foundation caused by hydro-static pressure from waterfront environments especially on the Gulfside of Florida.
An undermined seawall where erosion occurs in the bottom of a footer creating soil loss can fail causing the seawall to lean, raising the return walls, and ultimately collapse. This is site specific depending on your seawall and soil. This is generally for pour-in-place seawalls.