Abstract: A double-wall protection levee floodwall has a pair of piles placed into soil at the bank at the edge of a water body or formed by a levee. The piles of the pair are oriented parallel to each other, are spaced apart transversely, and are rigidly connected together by a connector so that when the force of rising water or a water-borne object is applied to a face of one of the piles, a force couple develops that places one of the piles in tension and the other pile of the pair in compression. The distance between the force-coupled piles and the depth of the piles in the soil provide the ability to withstand predetermined transverse forces while conserving materials and space. Fill material, riprap, earthen support, and erosion control matting can improve the function of the double-wall floodwall. Multiple pairs of piles can be longitudinally placed to form a continuous floodwall.

Abstract: A portable flood-barrier-system can include a portable block of substantial mass; and a deflatable bladder, a first portion of which is disposed on a substrate; the block being disposed at least partly on the first portion of the bladder so as to releasably compress the first portion between the block and the substrate and so releasably hold the first portion therebetween due to friction.

Abstract: This invention discloses a simple and convenient method of floods control and with great discharge capacity. This invention is a method of speeding up the river floods water discharge ability into the sea by means of the natural tidal range. This is done by the following technical proposals. To set up the PTCCG between the tidal current limit of the estuary and the coast tangent or narrower part of the estuary; the said PTCCG should be built across the river from the banks theoretically. When there is a danger of flood during the floods seasons, we can close the PTCCG and prevent the tidal current from entering into the inner river. When the tide ebbs, we can re-open the PTCCG and discharge the freshwater withheld into the sea. The PTCCG is normally open when it is not used. This invention is applicable to all tidal estuaries, which are affected by the astronomical tide range.

Abstract: Mobile flood wall preferably comprising of plastic, characterized by support elements (1 through 5) as plates of a fitting thickness, each in the form of an equilateral triangle with one of the three equal outer sides as the base and wall elements (11 through 19) as rectangular plates of a fitting thickness lying on and connected to the water-side outer side of the equilateral support elements and therefore sloped at an angle of 60°, which forms the wall with the land side surface, wherein the water pressure on the wall elements is diverted by the support elements into the ground, and causes the surface structures of the base of the support elements to be pressed into and anchored in the ground, for sealing the ground against water and for the stability and the nondisplaceability of the flood wall.

Abstract: A sectionalized flood control barrier (10) for mounting on top of a levee or a river bank to prevent flooding. The barrier (10) consists of a footing (20) with a series of support channels (24) that are butted end to end attached to the footing. The support shells are sealed watertight at the interface with each other and also to the footing. A series of primary channel bridge assemblies (32) and secondary channel assemblies (46) are disposed within the support channels (24) and are also butted end to end. Wind protectors (60) contiguously engage each support channel (24) and rest upon the footing for diverting the wind over the barrier. Stepped fastening risers (62) are attached to the footing on each end and over the channel assemblies, and wind protectors hold them securely in place.

Abstract: A method for remediating a body of water includes sequestering a sector of water within the body of water. A communications channel is established between the water sector and a supply site. The water sector is at least partially remediated using the channel to alter a composition and/or a state of the water in the water sector. The channel may be used to add a chemical or nutrient; to provide air or water for mixing the column contents; to convey an electrical signal to an element such as a valve, sensor, or pump in the water sector; to withdraw samples and/or components from the water sector; or to obtain information therefrom via electrical signals. Following the remediation, the remediated water is exchanged with water to be treated from the body of water. In this way, the body of water is remediated over time.

Abstract: A polymeric flocculant infused silt fence assembly comprising two opposing and attached geo-textile sheets, each adapted to filter entrained non-colloidal particles and together encasing a layer of polymeric flocculant material. In a preferred embodiment the polymeric flocculant material comprises anionic polyarylmide. A turbid water flow having a suspension of colloidal particles is flowed through the first geo-fabric sheet, which filters any entrained non-colloidal particles. The polymeric flocculant material coagulates a portion of the colloidal particles and forms flocs. The second geo-fabric sheet filters remaining entrained non-colloidal particles, including the coagulated flocs.

Abstract: A portable flood barrier section is located on a ground (2) to form a barrier (3) against flooding water (4), comprising an erectable wall (5) which along one of its edges (6) is hinged to a basis. The hinge (7) enables a rotating erection (A) of the wall (5) from an essentially horizontal position to an erected position. A flexible or rigid tie (8, 9), which extends from the basis to the wall (5) on the flooded side (10) of the wall (5), prevents an erection of the wall (5) beyond the erected position. A seal (12) is in the erected position of the flood barrier section (1) located between the flood barrier section and the ground (2). The flood barrier section (1) is adapted to, prior to flooding, to expose the seal (12) to a positive sealing pressure exceeding a pressure caused by the weight of the flood barrier section (1). The invention also relates to a flood barrier (3) comprising flood barrier sections (1).

Abstract: The invention relates to improved water control gates and related inflatable actuators, and associated sealing, manufacture and operation apparatus and methods. Advancements in technologies related to air fitting design, inflated bladder stress relief, inflatable bladder strength enhancement, water gate related slide friction mitigation, abutment and other impounded water seals, gate panel fabrication, traffic accommodating water impoundment structures, and water gate panel system operation efficiency, as well as nappe areation, hinges, and bladder manufacture technology are disclosed herein.

Abstract: Device for retaining water comprising a foundation, a retaining wall movably attached to the foundation and a shore movably, particularly hingingly, attached to the foundation, in which the shore and the retaining wall are movably, particularly hingingly, attached to each other, and in which the retaining wall is provided with at least an internal longitudinal hinge about which the retaining wall can be turned.

Abstract: A Sediment control devices and systems generally includes a core made up of granular material encased within a puncture resistant fabric, a compressible layer enwrapping the core and a geotextile fabric outer casing. A plurality of such devices provide a system for controlling erosion and sedimentation.

Abstract: A method of treating a metal-contaminated sediment includes capping the sediment with a capping product containing sulfur and at least one component selected from the group consisting of clays, clay-sized materials, bulking agents, sand, sand-sized materials, aggregate, and binding agents. A capping product includes a plurality of manufactured composite particles, each composite particle comprising a relatively dense core and a sealant layer at least partially encapsulating the core, the sealant layer including sulfur and at least one of the above components.

Abstract: A structure for diverting fish away from water intakes comprises a porous dike having a bottom portion, a central portion, and a top portion, the top portion preferably being submerged a short distance below the surface, and the central portion having flow passages. In a preferred embodiment, the top and bottom portions comprise solid blocks and the flow passages in the central portion are lined with zebra mussel resistant sleeves to minimize clogging. Preferably the sleeve can be readily replaced as desired.

Abstract: A method for making an embankment in areas and forming a barrier against water with the help of supports. For this purpose, corrugated steel sheets or corrugated panels of some other material, such as plastic or aluminum, are folded across their longitudinal direction along perforations in the sheets so that sections of the sheet extend at an angle to one another, and the aforementioned folded formed barrier supports are caused to be positioned on a supporting surface so that a folded section of each sheet forms a barrier support (16) that faces towards the intended damming area. The barrier support is formed laterally by a number of mutually overlapping folded corrugated sheets. An arrangement for the execution of the method.

Abstract: Sediment control devices and systems are provided. The device generally includes a core made up of granular material encased within a puncture resistant fabric, a compressible layer enwrapping the core and a geotextile fabric outer casing. A plurality of such devices provide a system for controlling erosion and sedimentation.

Abstract: A modular flood control panel is provided having a base and supporting “A”-frame structure. The base locks into the ground, or supporting wall of sandbags, with a series of four adjustable angle stakes per each panel. The invention folds flat when not in use, for storage and for transportation on a truck to flood water areas. The panels are joined together with the use of a five inch wide joining slat that slides down into a channel on each side of each panel.

Abstract: Barrier for in particular water comprising inclined supports against which loading pallets are inclined, over which membranes are placed for the shaping of a sealed structure that is inclined towards the water mass that is to be enclosed. The supports are connected to each other by means of laterally arranged push and pulling forces taking lateral connections provided with flanges in their ends for the enclosing or gripping of a loading pallet. The lateral connections have in their ends protrusions protruding against their inclined support and gripping into holes in the upper loading pallet supporting beam. The lateral connections are telescopic and fixable in different positions, for instance by means of holes and through pins for the adaptation to different pallets and orientations of these respectively.

Abstract: The present invention is directed to a new and useful labor saving method of constructing &Lgr;-shaped dam structures to retain silt in farm field intermittent watercourses by utilizing 10″ and 2″ black plastic drainage tile.

Abstract: Every year, during the summer and fall seasons, we experience heavy rainfall and floods. Whenever we have heavy rainfalls, we worry about the streets flooding and the safety of the levees. The flooding of streets and cities results in the loss of human life, as well as a loss in millions of dollars of property. The mobile levee system will protect the streets, properties, and cities from flood. It is easy and quick to install, and it is more secure than sand bags. The mobile levee system will protect millions of dollars in property as well as save human lives.

Abstract: The present invention relates to a liquid barrier assembly for the prevention of flow of liquid from one area to an adjacent area. The assembly comprises a plurality of barriers each having a substantially rigid container defining and enclosed chamber and a front concave wall against which, in use, liquid is intended to be incident. The front wall of at least one of the barriers has a plurality of apertures that allow the passage of liquid into and out of the chamber. Adjacent barriers are corrected to one another in a side by side relationship by an elongate dog-bone connector. Each connector has a plurality of resiliently deformable sealing members which ensure that a liquid-tight seal is retained between the barriers. Angular displacement of one barrier relative to its neighbour about the connector is permitted so that a non-linear liquid barrier assembly can be constructed.

Abstract: The invention relates to a method for making an embankment in areas and forming a barrier against water with the help of supports. For this purpose, corrugated steel sheets or corrugated panels of some other material, such as plastic or aluminium (6-63), are folded across their longitudinal direction along perforations in the sheets so that sections (5, 6) of the sheet extend at an angle to one another, and the aforementioned folded formed barrier supports (16) are caused to be positioned on a supporting surface (17) so that a folded section (5, 6) of each sheet (6-63) forms a barrier support (16) that faces towards the intended damming area (21). The barrier support (16) is formed laterally by a number of mutually overlapping folded corrugated sheets (6-63). The invention also relates to an arrangement for the execution of the method.

Abstract: A device and method for stabilization of beaches and building walls, patios and similar simple structures consisting of blocks with trapezoidal or rectangular shapes which have staking or interlocking means of interconnecting blocks and where the top has an open area allowing fill by slurries of water and sand, gravel or clay and the escape of clarified water during and after filling.

Abstract: The device is composed of two, horizontally aligned component parts, namely, fixed spinway subtending an angle of 60° and a pivotal wedged-shaped module residing at a specific and constant distance parallel to the spillway face. The wedge-module is designed so that it rotates around a defined arc radius so maintaining both a constant distance between interfaces of the wedged-module and spillway and a constant angle of attack. This device has been demonstrated to accelerate the rate of fluid flow under either low or high head pressures by way of generating a negative pressure (venturi) effect in the device. The nature of the wedge-module is to present a “throat” configuration at the slit opening thereby tending to suck fluid into the device under such negative (venturi) pressures, while maintaining a laminar flow pattern ahead of the wedge-module/spillway arrangement.

Abstract: The riparian improvement structure for use upon riparian protection, shore and bank protection, wave control, water control, etc. of a river, lake, sea, etc. is composed of a plurality of blocks and a structural body or bodies composed of a plurality of wooden materials or mass materials. The riparian improvement structure also provides an environment suitable for the habitation of aquatic life such as fish, crustaceans, e.g., crabs, shrimps, aquatic insects, etc., and for the growth of aquatic plants, etc. The blocks are each provided with a water passage, such as a through-hole formed therein or a plurality of grooves formed on the bottom thereof, through which fresh water can flow, when they are disposed on the structural body or bodies or on a riparian area such as a river-bed, shore, bank, bottom, etc. of a river, lake, sea, etc. The blocks are disposed for fresh water to flow through the water passage and to be supplied to the structural body or bodies inhabitable for aquatic life.

Abstract: The invention relates to a portable flood barrier section (1) to be located on a ground (2) to form a barrier (3) against flooding water (4), comprising an erectable wall (5) which along one of its edges (6) is hinged to a basis. The hinge (7) enables a rotating erection (A) of the wall (5) from an essentially horizontal position to an erected position. A flexible or rigid tie (8, 9), which extends from the basis to the wall (5) on the flooded side (10) of the wall (5), prevents an erection of the wall (5) beyond the erected position. A seal (12) is in the erected position of the flood barrier section (1) located between the flood barrier section and the ground (2). The flood barrier section (1) is adapted to, prior to flooding, to expose the seal (12) to a positive sealing pressure exceeding a pressure caused by the weight of the flood barrier section (1). The invention also relates to a flood barrier (3) comprising flood barrier sections (1).

Abstract: In a method for providing a portable flood barrier (1), flood barrier sections (2, 3, 4) comprising two parallel, spaced apart, inflatable, elongated tubes (5,6 or 5,7) which are joined by a waterproof web (8) are placed on the ground (9) with the side of one of the tubes (6 or 7) facing the flooded area (10), and the other tube (5) facing away from the flooded area (10). Both tubes (5,6 or 5,7) are inflated, and ballast water (13) is filled on the web (8), whereupon, when floodwater (14) rises, the tube (6 or 7) facing the flooded area (10) floats in the floodwater (14) and due to its buoyancy rises, thereby forming a flood barrier (1).

Abstract: The ballast system comprises a flexible elongated member provided with a number of pockets or pouches adapted to hold a ballast material therein. The elongated member can comprise a net structure. Each pocket or pouch can be selectively opened and closed, for instance via co-operating Velcro™ strips. Typically, the pockets or pouches extend transversally of the elongated member. The elongated member is adapted to be rolled up in a storage position and to be carried in this storage position. The ballast system may comprise at least one attachment member for connecting the ballast system with at least one other similar ballast system.

Abstract: A foundation comprising one or more layers or mattresses of tires, and a fill material provided within and/or between tires of each of the mattresses. The fill material is preferably a relatively coarse aggregate and provides a porous bed having relatively high drainage capacity. The lowermost mattress is typically wrapped in a porous sheet such as a geofabric cloth which is designed to allow the passage of water across the lowermost mattress whilst preventing the ingress of relatively finer material into the fill material and which can otherwise lead to degeneration of the foundation. At least some of the tires typically also have an upper sidewall removed therefrom.

Abstract: A foundation protector for a foundation wall prevents moisture being retained in the foundation wall and also provides drainage for surface water so that water does not rest against the surface of the foundation wall. The foundation protector has a smooth exterior surface so that it remains attached to the foundation if earth subsidence occurs. The foundation protector includes a waterproof dimpled sheet with spaced-apart protrusions and an outer waterproof membrane which covers recesses formed by the protrusions and provides a substantially smooth exterior surface.

Abstract: A frame structure for use as a portable dam. Each frame structure is comprised of a support beam, a base beam and at least one brace beam connected together in pivoting relationship so that the beams may be folded down together for quick assembly and disassembly. The collapsed beams are configured to lie parallel to each other in a folded arrangement to permit efficiency in stacking multiple units together for storage and transportation. The erected frame structures are connected to each other and held in a spaced relationship through the use of couplers that are adapted to slide over the ends of the beams forming the frame structures. The individual frame structures may be erected in place in the water, or a section comprising several connected frame structures may be pre-fabricated and lifted and placed as a unit in the water. A stiffener member is affixed to adjacent frame structures to hold them together in rigid relationship.

Abstract: Holding apparatus for supporting a dam unit, wherein the apparatus includes a frame structure including at least one support member. The at least one support member is arranged to support the dam unit when the dam unit is raised from a lowered position to a holding position. The at least one support member is at least one of detachably connected to the dam unit and removably engagable with the dam unit. The at least one support member essentially experiences compression forces when the dam unit is supported in a holding position. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: A fluid containment system is provided comprising a plurality of interlocking wall sections, each having a male connector at one end and a mating female connector at an opposite end for connection to the male connector of an adjacent wall section in alignment therewith having a similar configuration. A plurality of connector sections are also provided which connect the wall sections at right angles to one another for forming a perimeter about a selected area to contain spilled fluid within the selected area. A liner is provided which spans the selected area and is secured to the wall sections about the perimeter of the selected area by a suitable capping system. The connector sections permit the selected area to be divided by the wall sections into plural divided and contained zones for protecting various different fluid storage systems within the selected area against undesirable spillage and possible mixing with one another.

Abstract: A guidance system for protecting a specific zone as a safety zone against flood water while protecting landscapes near the specific zone from deteriorization. According to the described flood water guidance system, a guidance plate (5, 5, . . . ) is positioned under underground in the vicinity (S′1, S′2, S″1) of an upstream side of a specific zone (SI, S2) containing property to be protected and where it is anticipated that flood water will flow, and when flood water is generated, or when there is a possibility that flood water may be generated, the guidance plate (5, 5, . . . ) is raised to a predetermined height above the surface of the earth, in order that a specific zone (S1, S2) is protected as a safety zone by diverting the flood water from the specific zone (S1, S2) by way of the raised guidance plate (5, 5, . . . ), and by guiding the flood water to a retarding basin, a drainage canal, and the like.

Abstract: A dam includes a body (11) made of loose material, for example earth and/or rocks (A), and a water barrier (12) axially extending to the dam body (11), including a waterproofing layered membrane (13) and a zone of waterpermeable loose material (B), on at least one side of the membrane (13), which can be injected with a sealing fluid and is designed to avoid puncturing of the membrane (13) and to allow the monitoring of the leakage water due to failures in the waterproofing membrane (13). The water barrier (12) can be provided inside the dam body or close to the upstream face.

Abstract: The invention relates to improved water control gates and related inflatable actuators, and associated sealing, manufacture and operation apparatus and methods. Advancements in technologies related to air fitting design, inflated bladder stress relief, inflatable bladder strength enhancement, water gate related slide friction mitigation, abutment and other impounded water seals, gate panel fabrication, traffic accommodating water impoundment structures, and water gate panel system operation efficiency, as well as nappe aeration, hinges, and bladder manufacture technology are some of the advancements disclosed herein.

Abstract: A flood fence wherein a plurality of deflectors or sections are placed end to end and into the soil in upright positions. The sections have a saw tooth bottom edge and downwardly extending uprights that engage within a soil substrate to thereby protect the soil on one side of the fence from water flow against the other side. The areas of joining between adjacent sections also include a support and secondary barriers to minimize seepage therepast as well as to assure that the sections remain engaged.

Abstract: A set of elements for erecting a transportable dam, the set comprising at least a first inflatable flexible element which, in an inflated state, forms a tube, and a filler element, which is mountable to one end of the inflatable element, whereby, when mounted to the inflatable element, the filler element defines a first end of the tube. The filler element has at least one filler plug opening for filling air and/or liquid into the inflatable element. A coupling arrangement is provided for defining a second end of the tube. The invention further relates to a method of erecting a transportable dam.

Abstract: A water quality management system and method that controls the exchange of water between two bodies of water (e.g., estuary and ocean) separated by at least one land barrier. The system consists of a series of water exchange units that are disposed in the estuary and knowledge-linked into a water quality management system that is remotely controlled from a central location. Each water exchange unit may comprise a conduit extending through the land barrier having a terminal end on the ocean side and a terminal end on the estuary side. The exchange of water between the ocean and estuary through the conduit may be effected using reversible pumps connected to the terminal end of the conduit on the estuary side. The pumps are preferably controlled from a remote location based on feed back data received from sensors located both in the estuary and ocean.

Abstract: A method to remediate a contaminated groundwater zone by shielding electron acceptors contained in groundwater flow that interfere with beneficial anaerobic reactions in the contaminated groundwater zone. Examples of such interfering electron acceptors include dissolved oxygen, nitrate, and sulfate. The method prevents electron acceptor-rich groundwater located upgradient from a contaminated zone from flowing into the contaminated groundwater zone. By diverting acceptor-rich groundwater around a contaminated zone, beneficial anaerobic reactions are enhanced that either biodegrade the contaminants, or change the subsurface geochemical environment so that contaminants are immobilized. Methods to establish a groundwater diversion system include constructing physical barriers to block clean groundwater flowing into a contamination zone, or creating a stagnant zone hydraulically by pumping clean groundwater upgradient of the contaminated zone or injecting clean water downgradient of the contaminated zone.

Abstract: Device for retaining water comprising a foundation, a retaining wall movably attached to the foundation and a shore movably, particularly hingingly, attached to the foundation, in which the shore and the retaining wall are movably, particularly hingingly, attached to each other, and in which the retaining wall is provided with at least an internal longitudinal hinge about which the retaining wall can be turned.

Abstract: Durable flat panels are connectable at their edges and are of appropriate shape and dimension to be quickly and simply assembled and secured into a closed hollow prismatic module configuration. A dense fill material is loaded onto the bottom panel prior to closure providing mass for strength and stability against impacts. The flat panels may be hingeably interconnected and foldable to optionally form a compact stackable configuration for storage and transport. A multiplicity of such modules may be positioned and connected to form a continuous massive wall for such uses as reducing damaging wave action, preventing beach erosion, directing water in flood areas, and providing highway barriers for guidance and safety.

Abstract: Included in the disclosure are exemplary devices, systems, and methods, embodiments of some of which can be useful for controlling erosion, retaining sediment, preventing siltation, treating runoff, removing pollutants, remediating environmental damage, protecting plants, establishing vegetation, protecting ecosystems, and/or restoring waterways and/or other riparian areas. At least one exemplary device includes a tubular mesh enclosure formed from a mesh material having a nominal opening size of less than 0.5 inches, a ratio of a length of the mesh enclosure to a diameter of the mesh enclosure greater than 40, having an opposing pair of ends, at least one of said ends sealed, said enclosure surrounding a filling. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.

Abstract: The present invention provides a movable water-protection apparatus capable of driving a water barrier plate manually or automatically when needed. The movable water-protection apparatus includes a water barrier plate (2, 50) for shutting out water, such as seawater, river water, and rainwater, likely to intrude into a basement (G) and a driving device for driving the water barrier plate (2, 50) upward from an underground position along a guide device (10) or a side plate (60). The water barrier plate (2, 50) is disposed in an underground space at an entrance of the basement (G). The driving device has a water pressure type piston/cylinder unit (20) to which service water is supplied.

Abstract: A modular dike is used to divide a body of water into two distinct parts. The modular dike uses a plurality of floatable modules. Each module is floated into the body of water and sunk at predetermined locations in the body of water. The modules are aligned in a row within the body of water so that the row of modules forms a dike which effectively segregates the body of water into two distinct parts.

Abstract: There is provided an internal pressure regulating system in which when a flexible bag body used for a collapsible dam is excessively pressurized, gas within the bag body is discharged. The system includes a flexible bag body which can be inflated with gas, and a pipe having opposite ends, with one end connected to an exhaust opening in the bag body, and the other end introduced into the upstream region of a watercourse.

Abstract: A deposit discharge system comprises: a discharge tube having a suction port opened so as to face a water bottom face of a water storing place on which deposits are deposited, a straight tube part extending upward from the suction port, and a discharge port communicating with the straight tube part and opened on the downstream side of the water storing place for draining the deposits together with water stream; a crane device suspending a whole main tube part of the discharge tube positioned in the water storing place in a state of being submerged and having a vertical moving mechanism vertically moving the suction port; and an air valve provided in the discharge tube for controlling introduction and exhaust of air from the discharge tube by opening and closing operation, wherein the discharge tube is installed so as to pass, when the deposits are discharged, through a dam banking in the water storing place routing a position lower than a water level of the water storing place.

Abstract: A mobile anti-flood protection device comprising flexible tubes (1) placed on top of each other with closed ends and at least one water connection. The ends of the tubes (1) are detachably fixed to holding devices (2). The holding devices are removably secured to a base plate (3a) which is fastened to a substructure (3) to be included in the ground.

Abstract: A flood barrier unit is provided for a flood barrier system. Each unit has three pillars attached to pillar footings implanted in the surrounding ground surface. For each pillar a concrete brace member footing is provided for the support of brace members compressively positioned between the pillar tops and the brace member footings. A turnbuckle connects two portions of each brace member, and when properly manipulated, will force the brace member ends into holes in the pillar footings and brace member footings. Barrier panels with tongue-and-groove top and bottom edges form a wall when attached to the pillars using a brace plate and bolts. A water-resistant vapor barrier, with a weighted bottom portion, is draped over the top of the barrier panels for fastening between the pillars and panels using a hook-and-loop fastener and the barrier panel bolts. Alternate embodiments include differing arrangements and numbers of the brace members.

Abstract: It is an object of the present invention to provide a guidance method for protecting a specific zone as a safety zone against flood water also in case of emergency like a power failure without deteriorating landscapes near the specific zone. In the guidance method of flood water, a guidance plate (5, 5, . . . ) is laid under underground in the vicinity (S′1, S′2, S″1) of upstream side of a specific zone (S1, S2) where a general residence, a school, a public facility like a hospital or the like is built and where it is anticipated that the flood water flows, and when flood water is generated, or when there is a possibility that flood water may be generated, the guidance plate (5, 5, . . . ) is raised to a predetermined height of surface of the earth, a specific zone (S1, S2) is secured as a safety zone by diverting the flood water from the specific zone (S1, S2) by means of the raised guidance plate (5, 5, . . .

Abstract: A length of material, such as woven polyethylene, woven polypropylene, burlap, or other woven material, divided into a series of two or more substantially equal sized sections. Every other section is filled with sand, or other material. When the length of material is put in place, each row alternating a filled section and an unfilled section, a very secure, interlocking, substantially water-tight structure is formed which is much more effective in preventing the flow of water, mud or silt. Because each section is substantially square, the sections can be stacked in a parallel or transverse direction, to effect a wider and stronger structure which is substantially impervious to the flow of water, mud or silt.