This invention provides a method and system for abating flooding that uses retention or detention ponds that require less surface area than prior art methods. The invention comprises at least one deep but narrow pond or water storage basin that can be pumped down during non-flood periods to an adjacent or remote water body. In one embodiment, the invention further comprises a levee to forms part or all of the water storage basin. The water levels in the water storage basin are controlled through a series of sensors, gauges, and/or valves either manually or automatically both for flow coming into the water storage basin during peak levels in an adjacent or remote water body and after peak elevations.

The present disclosure is directed to a system that includes a buoyant body, the buoyant body extending around at least a periphery of an upper perimeter; a length of film having a first end and a second end, the first end of the film operably connected to the upper perimeter; and a base, wherein the second end of the film is operably connected to the base, wherein the base extends around a base perimeter.

The invention concerns a flood protection for protecting a back area against rising water level from a front area, the flood protection operating between a bottom and a water surface, including at least one barrier element with a longitudinal direction and a height direction, the longitudinal direction during operation extending substantially transversely of an area, e.g. a stream, a fjord, a river or an estuary, and the height direction during operation extending from the bottom of an area, e.g. a stream, a fjord, a river or an estuary, and up, where the at least one barrier element during operation interacts with a base arranged at the bottom of the actual area. The invention also concerns a method for operating such a flood protection. The new feature of the flood protection according to the invention is that it includes a movable and buoyancy balanced barrier element that includes an adjustable ballast system for regulating the buoyancy balance, the base of the flood protection including a bottom rail system, and the barrier elements including contact means arranged for contact with the bottom rail system.

A flexible and movable splice joint between edge aligned adjacent panels incorporates a flexible water sealing gasket and a flexible tensile member, which may be a strap or a cable or chain that allow the panels to move laterally and rotationally transversely relative to each other without damaging each other by such movements, and is particularly applicable to a plurality of assemblies of so joined panels that form raisable flood barriers to prevent flooding of land and improvements on the land by water rising from an adjacent body of water without permanently blocking a view of the waterscape.

A module for implementing a protective barrier against liquid runoff and/or flooding comprising a retention member adapted to retain a liquid body on a front area located at a front side of the protective barrier, one or more sensors adapted to acquire at least one information about the module or about the liquid body, a relief valve, the relief valve being adapted to be actuated from a closed state to an open state according to the information acquired and provided by the sensor, and related system and method.

A movable tsunami buffer dam has a unit configured such that a plurality of separate units, each of which having a shape in which a frame made of a light material is sandwiched by a pair of plates made of a light material, is stacked with said plates disposed in a pile; and a locking member for locking said unit to a ground surface such that said unit can rise up from said ground surface and collapse onto said ground surface. The separate units has a structure in which water from a tsunami can advance into a space formed between said plates by said frame.

A required thickness is ensured due to said unit being configured such that said separate units are stacked, and the manufacturing cost is reduced to a greater extent than in the case of a dam configured from a single separate unit of said required thickness, because the big size lumber for obtaining the units is very expensive. The unit is installed in a state of being collapsed on said ground surface at normal times, and when a tsunami arrives, said unit rising up due to the force of the tsunami and the buoyancy of the seawater, resisting the passage of the tsunami and reducing the power of the tsunami.

A water supply control system is disclosed that comprises a computer-implemented control system coupled to a plurality of gates, one or more pumps, and a plurality of sensors. The computer-implemented control system is configured to receive a request to transfer excess water from a non-water supply lake to a water supply lake and determine, based at least in part on data from the plurality of sensors and geographic locations of the non-water supply lake and the water supply lake, whether transferring water as requested will cause or worsen a flood event. In response to a determination that transferring water as requested will not cause or worsen a flood event, the computer-implemented control system is further configured to issue a command to cause a gate associated with a dam at the non-water supply lake to open such that water is transferred from the non-water supply lake to the water supply lake.

In order to structurally simplify a frame that is a component of a door body and to reduce required levels of manufacturing precision and assembly precision, thereby reducing a manufacturing man-hour, provided is a floating flap gate 1 installed on a road surface rs at an entrance portion of a building or an underground space. An upward swinging support portion is composed of a bottom fitting 5, a resin plate 6 configured to support a door body 4 when the door body 4 is raised, a water cut-off film 13 covering the bottom fitting 5 and the resin plate 6, a first pressing plate 14, and a second pressing plate 16. The bottom fitting 5 has a convex circular arc-shaped surface 5a. The resin plate 6 has a concave circular arc-shaped surface 6a to be mated with the convex circular arc-shaped surface 5a of the bottom fitting 5.

A self-closing flood barrier for protecting a hinterland against floods includes a housing having a water-side wall and a hinterland-side wall, a water inlet for letting in water into the housing, and a flood barrier element which is movable up and down in the housing. The flood barrier element acts as or includes a forcing element for causing a forced upward movement of the flood barrier element. The flood barrier element is wherein the self-closing flood barrier comprises a hinging clamping element which is hinge-mounted to the water-side wall, the hinging clamping element comprising a clamping piece which, in closed state of the self-closing flood barrier, is hinged against the flood barrier element, such that the flood barrier element is clamped in between the clamping piece and the hinterland-side wall.

A pile mechanism to support water barrier elements in a self-closing flood barrier is described. The pile mechanism includes a pile that is arranged substantially beneath ground level when the water level is below the ground level, and that is automatically positioned above the ground level when the water level rises above the ground level. In some embodiments, the pile mechanism has a central float that is suited to cause the pile to rise at a water level that is higher than the ground level, a cover element suited to provide a water-tight seal between the pile and at least one water barrier element of the self-closing flood barrier, and a well having at least one flotation compartment from which the pile rises by means of the central float positioned in the flotation compartment.