A permanent below-ground flood barrier installation is characterized by a trench surrounding a specified area. A concrete ballast lines the trench and anchors a covered housing containing a flexible water impermeable fabric wall and a series of supports. When a flood is impending the housing is opened, the supports removed and set up vertically at ground level, and the fabric wall extended upward. The fabric wall is attached at its upper edge to the cover set atop the supports, and at its lower edge to the housing. Three point anchoring of the supports maintain them in vertical orientation and stop means prevent backward movement during storm surges. When flooding subsides the components can be cleaned, dried and returned to the housing. No tools or special skills are required to set up the wall and supports once the initial installation has been completed.

A system and method to create or elevate a berm of a liquid retention facility by placement of lightweight fill material anchored by an impervious liner material(s). The impervious liner material is integral to a water retention system such as a containment system of a retention pond. The system and method can also be used to elevate the liquid retention height of a levee in combination with impervious liner retention material. By constructing the berm system on an existing levee, the effective height of the levee can be increased. The lightweight fill material provides the shape of the berm or levee extension. The liquid impervious liner material provides a watertight surface, the media for joining of the lightweight fill material, and the anchoring of the lightweight fill material to the existing berm or levee structure.

A system and method to create or elevate a berm of a liquid retention facility by placement of lightweight fill material anchored by an impervious liner material(s). The impervious liner material is integral to a water retention system such as a containment system of a retention pond. The system and method can also be used to elevate the liquid retention height of a levee in combination with impervious liner retention material. By constructing the berm system on an existing levee, the effective height of the levee can be increased. The lightweight fill material provides the shape of the berm or levee extension. The liquid impervious liner material provides a watertight surface, the media for joining of the lightweight fill material, and the anchoring of the lightweight fill material to the existing berm or levee structure.

A portable, water-filled barrier system includes a plurality of water-fillable modules, each module being internally divided into cells that emulates a section of a sandbag dike or wall. Adjacent modules are interconnected by fastening mechanisms, such as loops attached to fronts or sides of the modules and connected by straps or clamps. Automatic valves can seal openings between the filled cells, so that a punctured cell will not cause cells below and behind to deflate. In embodiments, the barrier can be initially filled with air, positioned, and then filled with water while the air escapes through a pressure valve. A manifold can be used to simultaneously fill a plurality of cells. A flexible sheet can be installed beneath and in front of the assembled barrier so as to inhibit leakage of water under or between the cells.

A laterally sliding type opening/closing gate of a torsion structure of reasonable cost is implemented. The gate includes: the torsion structure having a closed cross-section consisting of a thin wall installed such that it may cross a sluice and be composed such that its cross-section may make an in-plane rotation around a restriction point on the cross-section and that a torsion moment generated by an applied load and reaction force on the restriction point is transmitted to its terminal due to its torsion rigidity; and a rail that is installed such that it may cross the sluice; and a plurality of axle type supports that has a function of a restriction point and moves along the rail.

A device for the damming of a liquid in a liquid basin including a tubular enclosure suitable for arrangement at an edge of the liquid basin, wherein a longitudinal direction of the tubular enclosure extends substantially parallel to the edge, wherein the enclosure encloses a liquid-fillable space, wherein the enclosure, at an exterior side thereof, facing the liquid basin, is provided with a skirt for being supported by a sloping underground of the liquid basin, seen from the edge, wherein the support during use is carried out in such a way, that a contact surface present between the skirt and the underground remains substantially free from liquid from the liquid basin, wherein the enclosure, near the lower side of the side during use facing the liquid basin, is provided with one or more filling openings, arranged above the skirt, that during use create an open liquid connection between the space and the liquid in the liquid basin.

The present invention relates to a water barrier, in particular a dike, comprising an inner slope, a crown and an outer slope, wherein the outer slope is located on the waterside. The water barrier is characterized in that the natural vegetation of at least one of the elements of inner slope, crown and outer slope is provided with fibres inserted into said vegetation.

The present invention relates to a water barrier, in particular a dike, comprising an inner slope, a crown and an outer slope, wherein the outer slope is located on the waterside. The water barrier is characterized in that the natural vegetation of at least one of the elements of inner slope, crown and outer slope is provided with fibres inserted into said vegetation.

A water containment structure that includes at least one flexible sleeve formed from a strong flexible material that will resist puncturing and is formed to contain at least one bladder formed to retain water, and which said sleeve includes center notches formed in the opposite sleeve ends that separate like closed end parallel fingers, which bladder fills the sleeve to the sleeve finger ends so that the bladder ends fit into and against the finger ends, and at least one water fill and drain tube fitted through said sleeve intro said bladder to pass, respectively, water into, and drain water from which bladder, and said bladder includes an air drain to provide for evacuating air from the sleeve during bladder filling. Which sleeve finger ends can be fastened together around a support, and which sleeve finger ends and notches can be secured to one another for connecting a number of sleeves, end to end, into a water containing structure.

High-density bales for erosion control or for forming a flood barrier are made by the compaction of tree leave material. The bales are made substantially from tree leave material that retains at least a portion of the vein structure. The vein structure improves the structurally integrity of the bale. A baler may be used to form the bale and it may compact the leave material up to an 8:1 compaction ratio, forming bales with a density of 0.3 to 0.8g/cc or more. The bales may have a retainer wire or mesh configured around a portion of the bale to retain the bale shape. The bales may contain seeds for growing plants directly from the bales as the leave material degrades to provide the nutrients for plant growth. This plant growth from the bale provides an aesthetically appealing bale that blends into the natural environment.