A compressible liquid retaining berm having a plurality of linear wall members and right angle corner members composed of a compressible, resilient material such that the wall members and corner members will rebound to a neutral state after being compressed. A longitudinal slot is disposed in the top wall of the wall members and the corner members, with the corner member longitudinal slots communicating with a recess positioned in the corner member. A liquid impermeable liner member is disposed on the interior side of the wall members and corner members, the liner member extending across the wall members and corner members. The liner member is secured to the wall members and corner members by positioning elongated anchor members atop the liner member in alignment with the longitudinal slots, such that the weight of the anchor members results in the anchor members being received within the longitudinal slots.

A device prevents flooding under sliding patio doors by blocking the space between a bottom of a sliding door panel and the top of the sliding door track. The device includes a reshapeable base that fills an external portion of a track of the sliding door to prevent water from pooling in the track and then from being driven by wind under the door panel. The shapeable base is made of a heavy material such as a sandbag that prevents the shapeable base from being blown out of the track, even during hurricane force winds. The device further includes a declined portion that directs rainwater away from the outer surface of the door panel, beyond the outer rim of the track. The declined portion thereby prevents rainwater from collecting within the track by directing the rainwater outward, beyond the outer rim of the track. An assembly of a plurality of devices can be utilized to protect a sliding door that has multiple panels, In the case of the assembly, a respective device is provided for each of the door panels in the sliding door.

Embodiments of an inflatable dam sized to be secured to a foundation structure with an anchor line. The inflatable dam includes a main bladder and an overlapping layer. The main bladder is moveable between deflated and inflated states such that, in the inflated state, the main bladder extends with a tubular configuration. The overlapping layer is sized and configured to extend over a portion of the main bladder and, in the inflated state, concentrically aligned with the portion of the main bladder. The overlapping layer is sized to extend with an overlapping length and to extend laterally between a first end portion and a second end portion along the overlapping length, the first end portion being coupled to the fin structure and the second end portion being configured to be coupled to the anchor line and the foundation 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. The modules include a first plurality having a rectangular base shape and at least one wedge module having a triangular or trapezoidal shape. In embodiments, the wedge modules can be installed in a front-forward or front rear-ward orientation according to a desired bending direction of the barrier. Automatic valves can seal openings between the filled cells, so that a punctured cell will not cause cells below and behind to deflate. A manifold can be used to simultaneously fill a plurality of cells. A flexible sheet or a plurality of interlocking sheets can be installed beneath and in front of the assembled barrier so as to protect the barrier from damage and inhibit leakage of water under or between the cells.

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 disclosed herein.

An inflatable dam sized to secure to a foundation structure. The inflatable dam includes a double layered flexible membrane extending with an inner membrane and an outer membrane, the double layered flexible membrane including a port configured to facilitate inflation and deflation of the inner membrane such that, upon inflation of the inner membrane, the outer membrane is configured to expand with inflation of the inner membrane, the outer membrane including a reinforcement element embedded therein.

A weir comprising: a water impervious flexible membrane; a buoyancy member; and a tether, wherein, in use, the membrane comprises a lower edge portion and an upper edge portion, the lower edge portion is fixed with respect to a bed of a body of water, the membrane and the buoyancy member are attached to one another in the upper edge portion, and the tether comprises a first end portion, which is attached to the buoyancy member and/or to the membrane in the upper edge portion, and a second end portion that is attached to an anchorage.

A water control gate pivotable about a horizontal axis. Control may be by a combination of inflatable actuators and ballast chambers in combination with means for preventing over-rotation. Sealing between gate panels and between gate panels and abutments may be by means of seals inflated hydrostatically. The present invention is bottom hinged water control gate actuated by a combination of ballast chambers and inflatable actuators. The invention further includes an inflatable sealing means. The invention is particularly suited for use as a navigation lock gate system or as a flood control gate in a watercourse such as a navigation canal.

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. The modules include a first plurality having a rectangular base shape and at least one wedge module having a triangular or trapezoidal shape. In embodiments, the wedge modules can be installed in a front-forward or front rear-ward orientation according to a desired bending direction of the barrier. Automatic valves can seal openings between the filled cells, so that a punctured cell will not cause cells below and behind to deflate. A manifold can be used to simultaneously fill a plurality of cells. A flexible sheet or a plurality of interlocking sheets can be installed beneath and in front of the assembled barrier so as to protect the barrier from damage and inhibit leakage of water under or between the cells.

A compressible liquid retaining berm having a plurality of linear wall members and right angle corner members composed of a compressible, resilient material such that the wall members and corner members will rebound to a neutral state after being compressed. A longitudinal slot is disposed in the top wall of the wall members and the corner members, with the corner member longitudinal slots communicating with a recess positioned in the corner member. A liquid impermeable liner member is disposed on the interior side of the wall members and corner members, the liner member extending across the wall members and corner members. The liner member is secured to the wall members and corner members by positioning elongated anchor members atop the liner member in alignment with the longitudinal slots, such that the weight of the anchor members results in the anchor members being received within the longitudinal slots.