How to build a retaining wall in water?

Building a retaining wall in water is a difficult process that requires careful planning and engineering. Before beginning any construction, it is important to consult a professional engineer to ensure the wall will be structurally sound. Depending on the location and scope of the project, obtaining a permit may also be necessary.

Construction begins by building a concrete footing for the wall. The footing should be at least twice as wide as the wall and can be constructed using a form or with steel-reinforced concrete. After it has set, secure the blocks for the wall on the footing. Depending on the design, additional reinforcing like rebar, geogrid, and soil nails may be needed.

When the wall is built up to the waterline, a flexible sealant should be used to prevent water from seeping into the wall and weakening its foundation. Next, backfill the area around the wall with gravel or a mixture of gravel and soil to create a stable base. Finally, the area should be monitored regularly to make sure the wall remains secure and the sealant is intact.