The most common civil engineering use of Sea Gabion Box is to stabilize shorelines, streambanks or slopes against erosion. Other uses include retaining walls, temporary floodwalls, silt filtration from runoff, for small or temporary/permanent dams, river training, or channel lining. Sea Gabion wall may be used to direct the force of a flow of flood water around a vulnerable structure. Sea Gabion wall are also used as fish barriers on small streams.
A Sea Gabion wall is a retaining wall made of stacked stone-filled gabions tied together with wire. Gabion walls are usually battered (angled back towards the slope), or stepped back with the slope rather than stacked vertically.
Sea Gabion wall have some advantages over loose riprap because of their modularity and ability to be stacked in various shapes; they are also resistant to being washed away by moving water. Sea Gabion wall also have advantages over more rigid structures because they can conform to ground movement, dissipate energy from flowing water, and drain freely. Their strength and effectiveness may increase with time in some cases, as silt and vegetation fill the interstitial voids and reinforce the structure. They are sometimes used to keep stone swhich may fall from a cutting or cliff from endangering traffic on a thoroughfare.