Embodiments of the present invention relate to a bag including at least one flexible sheet of material, a back substantially orthogonal to a bottom, a front opposite the back, and a side comprising an envelope configured to receive a support structure.

A receptacle is hereby presented, the receptacle comprising two pairs of generally parallel surfaces interconnected together into a hollowed cubic volume, a first pair of surfaces being collapsible surfaces and a second pair of surfaces being adapted to be coupling surfaces, a bottom surface connected to the two pairs of parallel surfaces to close a bottom of the receptacle, a retaining element disposed on the exterior of at least one of the coupling surfaces and a stiffening element secured with the retaining element to the exterior of at least one of the coupling surfaces, the stiffening element being adapted to increase self-standing receptacle capability.

A system for impeding shore erosion includes a sea-facing barrier wall penetrated by large holes that allow water with entrained sand to enter the apparatus. Smaller holes provided in a rear wall allow the water to drain into an underlying reservoir after the entrained sand has settled. An extension can be abutted to a top of the barrier wall to enhance sand collection during a storm. Water that flows over the barrier wall is caused to flow over a top of the extension, whereby water with entrained sand falls through openings in the extension top. Sand collected by the extension remains on the shore when the extension is removed. The apparatus can include plywood, metal, or plastic. Embodiments can be disassembled and/or folded for transport and storage. Internal reinforcing partition walls can extend between the barrier and rear walls. The apparatus can be further anchored by stakes.

A bio-friendly water flow control system can include a portable structure adapted to contain organic waste material. The water flow control system can be configured for deployment outdoors to guide water flow to limit erosion. A portable structure of such a system can include a sheath that is configured to contain waste material within an interior of the sheath. The portable structure may be configured to allow a flow of water into the interior of the sheath. The portable structure may include a waste material that includes processed palm frond particles. The portable structure may be configured to absorb a weight of water at least 50% greater than a dry weight of the portable structure.

A shoreline protection dike includes a plurality of juxtaposed protection devices each including a front face which is curved so as to deflect the water from each wave upwards and back in the direction of ebbing. The front face includes a concave curved shape formed by lines parallel to one another and extending between lower and upper edges of the front face, each line resting on a curved line which extends in a plane perpendicular to the lower and upper edges, the curved line including a first sector which forms a first arc and at least a second sector which forms a second arc.

Provided is a sandbag which is unlikely to break down even when using water-absorbing resin particles therein. A sandbag having a water-permeable bag and water-absorbing resin particles stored in the bag, wherein the pure-water absorption factor of the water-absorbing resin particles is at least a factor of 1,000, and the compression-breaking stress of the water-absorbing resin particles when swollen with pure water is at least 0.1N.

The present invention is a rapidly deployable flood defense system and method that has at least one barrier cover, each comprising a plurality of laterally-extending crossbeam housing tubes stacked generally vertically and housing an inflatable crossbeam disposed within the tube, an end retaining tab at each end of the tube, and a plurality of rear support retaining tabs spaced along the lateral length of the crossbeam housing tube; and a front apron and a rear apron. The system also has a plurality of support tubes and a plurality of additional support tubes positioned along the lateral length of the crossbeam housing tube. Each support tube held in the generally vertical direction by a base post and each and additional support tube positioned along the lateral length of the crossbeam housing tube having an additional base post positioned rearwardly.

A device is provided for producing a tubular container which is able to be filled with granular, pulverulent, pourable and flowable materials, wherein the container can include webs manufactured from geotextile material. The device includes a displaceable frame with at least one unwindable geotextile web, wherein the frame includes a filling trough with an outlet hopper for the material, and wherein the filling trough has a conveying device for the filled material, the conveying device acting counter to the direction of movement of the frame, which, at the rear end of the filling trough, surrounds the material in an enveloping manner, in the region of the outlet hopper, by the unwindable geotextile web, as the frame is advanced, so as to form a tube.

A flood mitigation barrier; the barrier comprising a line of central structures wrapped in a flexible heat shrinkable polymer material.

An apparatus for impeding beach erosion includes a sea-facing barrier wall penetrated by large holes that allow water mixed with sand to enter the apparatus. Smaller holes provided in a rear wall allow the water to drain out after the entrained sand has settled. An underlying water reservoir fills with the drained water and gravitationally anchors the apparatus. The reservoir can be buried in the sand or placed on top thereof. The top of the barrier wall can be curved to direct water back toward the sea. The barrier wall can extend above the rear wall, and a backstop wall can form an additional sand-collecting chamber behind the rear wall. The walls can be made from plywood, metal, or plastic. Embodiments can be disassembled and/or folded for transport and storage. Internal reinforcing partition walls can extend between the barrier and rear walls. The apparatus can be further anchored by stakes.