Abstract: A system for recirculating lock water includes a sealable storage area located near a lock for receiving water from the lock. The storage area is large enough to house the lock water with excess space between a maximum water level and the ceiling. The system also includes at least one compressor connected to the storage area to create a vacuum to withdraw the water from the lock into the storage area.

Abstract: A submersible canal bypass is used to bypass the flow around a distinct section of an earthen canal for lining. The canal bypass is placed within the canal and uses a plurality of pipelines and a plurality of bulkheads assembled from portable modular sections. The headgates on the portable modular sections are so arranged along the bulkhead to divert the flow of water through bypass pipelines so as to isolate a section of the canal during lining activities and return the flow of water to the lined canal after lining.

Abstract: A saltwater intrusion prevention system for use at an interface between a fresh water body and a saltwater body includes a water recovery subsystem for recovering fresh water from a fresh water body. A retention reservoir in fluid communication with the water recovery subsystem receives and redirects the recovered fresh water. A saltwater intrusion barrier subsystem in fluid communication with the retention reservoir is positioned at an interface of the fresh water body and the saltwater body. The saltwater intrusion barrier subsystem includes a plurality of submerged return discharge ports for vertically ejecting the recovered fresh water for providing a hydraulic mounding zone, and a fine air bubbler header for creating a mixing zone. The hydraulic mounding zone and the mixing zone increase the density of the fresh water for offsetting saltwater from the saltwater body.

Abstract: The invention discloses a method of predicting the fluid level at a predetermined location in a fluid flow network (10) having at least one regulator (16, 18) to control the flow of fluid along fluid flow network (10). The method includes the steps of collecting data based on timed measurements of fluid levels upstream (24, 28) of at least one regulator (16, 18), fluid levels downstream (26, 29) of at least one regulator (16, 18) and the opening position (30, 32) of at least one regulator (16, 18), and using data analysis (40) to provide a model based on the data whereby the model will provide prediction of fluid level at the predetermined location based on timed measurements of fluid levels upstream (24, 28) of at least one regulator (16, 18) and the opening position (30, 32) of at least one regulator (16, 18).

Abstract: A lock and dam system for a waterway includes a dam extending across the waterway, a channel having a first entry-exit opening on a first side of the dam and a second entry-exit opening on a second side of the dam. The channel includes a lock. The system further includes a fascia proximate first entry-exit opening in the channel, and a fender system to protect the fascia from impact. The fender system includes a plurality of resilient flexible support element, a first panel supported by a first one of the plurality of support elements in front of the fascia and a second panel supported by a second one of the plurality of support elements in front of the fascia. The first and second panels overlap in a first direction parallel to the fascia and a second direction perpendicular to the fascia. In one exemplary embodiment, the first panel has a first shoulder and the second panel has a first step facing and overlapping the first shoulder.

Abstract: A submersible canal bypass is used to bypass the flow around a distinct section of an earthen canal for lining. The canal bypass is placed within the canal and uses a plurality of pipelines and a plurality of bulkheads assembled from portable modular sections. The headgates on the portable modular sections are so arranged along the bulkhead to divert the flow of water through bypass pipelines so as to isolate a section of the canal during lining activities and return the flow of water to the lined canal after lining.

Abstract: A method and system allowing fish to migrate upstream and downstream, bypassing dams, obstructions, either man-made or natural, safely, freely and in a natural manner. The system consists of a meandering “nature-like” channel constructed of pneumatically placed concrete, shotcrete or gunite that simulates a waterway bed condition. The construction of riffles, ledges, undercut banks and other natural-like features to provide a foundation for the placement of fish habitat, such as gravel beds, boulders, logs, and the like. The placement of sand, gravel, cobbles and such to create and provide an aquatic environment to sustain plant and aquatic life. The introduction of plants and other aquatic life to provide forage, cover and a year around natural-like environment within a river or stream-like migratory bypass channel.

Abstract: Currently migratory fisheries are impeded in their upstream and downstream movements by one or more dams across rivers. A method and structure is described that overcomes the shortcomings of currently employed methods such as fish ladders, water spilling and barging. A channel of sufficient dimensions to simulate a natural stream bed is employed to parallel the entire length of river and reservoirs and provide passage for the fish. This is accomplished without the breaching and destruction of the dams bypassed.

Abstract: A submersible canal bypass is used to successively bypass the flow around distinct sections of an earthen canal for lining. The canal bypass is placed within the canal and uses a plurality of pipelines and a plurality of bulkheads assembled from portable modular sections. The headgates on the portable modular sections are so arranged along the bulkhead to divert the flow of water through bypass pipelines so as to isolate a section of the canal during lining activities and return the flow of water to the lined canal after lining.

Abstract: A method and system allowing fish to migrate upstream and downstream, bypassing dams, obstructions, either man-made or natural, safely, freely and in a natural manner. The system consists of a meandering “nature-like” channel constructed of pneumatically placed concrete, shotcrete or gunite that simulates a waterway bed condition. The construction of riffles, ledges, undercut banks and other natural-like features to provide a foundation for the placement of fish habitat, such as gravel beds, boulders, logs, and the like. The placement of sand, gravel, cobbles and such to create and provide an aquatic environment to sustain plant and aquatic life. The introduction of plants and other aquatic life to provide forage, cover and a year around natural-like environment within a river or stream-like migratory bypass channel.

Abstract: The lock and dam system for waterway includes a dam extending across the waterway, the channel having a first entry-exit opening on a first side of the dam and a second entry-exit opening on the second side of the dam. The channel includes a lock. The system further includes a fascia approximate first entry-exit opening in the channel, and a fender system to protect the fascia from impact with objects generally moving in a first direction. The system includes a first panel, a second panel, a first support element coupled to one of the first and second panels and coupled to the at least one fascia and a second support element coupled to one of the first and second panels and coupled to the at least one fascia. The first support element extends oblique to said one of the first and second support panels with the second support element extends oblique to said one of the first and second panel.

Abstract: The method of combining barbed wire and conventional bags to create structures includes the steps of: providing a plurality of bags; filling the bags with a predetermined mixture of organic, manufactured, recycled, particulate, fill material; stacking and arranging the bags in a predetermined array; and, placing at least one strand of barbed wire or similar wire between at least a major portion of the stacked layers of bags as they are being stacked to create frictional resistance to sliding between layers and tensile strength in a wall or other structure formed by the stacked layers of bags thereby to provide earthquake resistant structures. The structures include a building structure retaining wall, and an erosion resistant embankment for a body of water made by the method. The bags can be of different length, the fill material can include a cementious material thereby to create a permanent structure and one to three spaced apart strands of barbed wire can be used between layers of bags.

Abstract: A pump device includes a motor, a pump body having a first body portion and a second body portion, a shaft connected to the motor and extending into the pump body and an impeller mounted on the shaft between the first and second body portions. A four valve assembly is provided in the pump body. The first and second valves are provided in the first body portion, and the third and fourth valves are provided in the second body portion. This pump device may be used to move an attached gate through fluid. When the gate door is to be moved through the fluid in a first direction, the first valve and the fourth valve are opened (and the second and third valves are closed) so that the fluid moves through the pump body from the fourth valve to the first valve. When the gate door is to be moved in a second direction, the second valve and the third valve are opened (and the first and fourth valves are closed) so that the fluid moves through the pump body from the third valve to the second valve.

Abstract: A spillway gate system for use as a navigation dam in which individual spillway gates may be serviced. The spillway gate system comprising a spillway including abutments at opposite ends thereof; wherein at least one of the abutments includes a cavity therein having a bottom surface; a removable bulkhead covering the cavity in the abutment; a plurality of water control gates hinged to the spillway; a service crane movable along the spillway and including a dewatering caisson; and a seal for sealing the caisson to the gates and to the bottom surface of the cavity.

Abstract: A lock using lock chambers and lock gates capable of reducing the water consumption in the operations of raising or lowering the boat passing through the lock from one level to another. The lock includes flexible air chambers capable of being inflated with air, located on bases of the lock chambers which are connected by a pipe equipped with a valve for controlling a flow of air between the air chambers.

Abstract: This invention relates to system for and method of moving sea water by utilizing tidal flow and ebb. This is achieved by the provision of at least one reservoir in the vicinity of the seashore and at least one tidewater channel connecting the reservoir and the seashore and also the provision of a plurality of floodgates on both reservoir and tidewater channel, the floodgates being adapted to be opened and shut in accordance with the tides of the sea for producing uni-directional current of tidewater through the tidewater channel.