Systems for reinforcing various waterfront properties such as riverbanks, lake shores and beaches of oceans, bays and the like to protect them from erosion and encourage accretion of beach sand and gravel are disclosed. Improved seawalls and the like can be built from L-shaped members having a vertical wall portion, a horizontal footer, a vertical key protruding below the footer and an angular splash plate protruding from the wall opposite the footer. Systems based upon such seawalls may further...

Apparatus for maintaining a seawall disposed between a body of water and retained earth includes at least two anchoring devices installed on the seawall at spaced locations and a connecting member for rigidly interconnecting the anchoring devices to maintain the separation distance therebetween. The connecting member may have a fixed length or may be adjustable in length to adjust the separation distance between the anchoring devices. A method of maintaining a seawall involves forming a passage ...

Apparatus for maintenance of a seawall comprises a plurality of anchoring members for being introduced through the seawall, a single retaining member for being secured on ends of the anchoring members which extend from a water facing side of the seawall, and a plurality of securing members for securing the retaining member on the ends of the anchoring members to tension the anchoring members and apply compressive force against the seawall. Another apparatus for maintenance of a seawall includes ...

WavBrakerSteps is a hydrodynamic structure comprising a main form (20, 22, 24, 26), a series of inclined upward ramped steps in the shape of a sine wave curve. WavBrakerSteps redirect and dissipate the relentless attacks by energizes and forces of sea waves, wind waves, tidal forces, ship and boat wakes. These energies and forces scour and erode the base or toe, the supporting structures, of waterfront bulkheads, seawalls and seacoasts. The action by waves flowing upward and then downward over t...

A method for stabilizing and repairing whereby components are mixed to form an expandable foam which is injected under pressure in an expanded state behind or into the backfill material of an existing sheetpile seawall. Upon expansion, the foam displaces water and fills and seals cracks in the seawall and fills scoured voids in the backfill material. The method is also applied to rock revetment seawalls whereby the unexpanded foam is injected under pressure into the rock revetment. Upon expansio...

A method and apparatus for making a dock or sea wall whereby the wall comprises at least one sectional dock member, the dock member comprising a concrete base section and a concrete wall section perpendicular to and attached thereto. A forming float device is used to make each sectional dock member while the forming float device floats in a body of water (e.g. sea). Both the base and wall sections of the dock member are formed horizontally on the water, thereby simplifying the means of construct...

Method and apparatus for making a dock or seawall. A forming float device, comprising a forming deck and ballasting means therebelow, floats in a body of water a selected distance from the shoreline. A first wall section is formed on the top surface of the forming deck, such that the first wall section rests horizontally on the surface of the deck, and comprises a plurality of wall pieces whereby the wall pieces are aligned and shaped appropriately to together provide a uniform wall. Each wall p...