Abstract: A barrier for diverting fish from a water flow channel such as an intake (12) consists of a dyke (10) enclosing the water intake, and extending at least the entire depth of the body of water. There are pipes (20) extending between opposite sides of the dyke (10), of diameter at least 800 mm (31 inches). The inlet end of each pipe (20) communicates with the body of water through one or more inlet ducts (26) of width no more than 600 mm (24 inches), this being a duct size to which the fish from the body of water have an aversion. Each inlet duct (26) may also be aligned at least 45° below the longitudinal axis of the pipe (20). The confined space, the resulting darkness, and the change in water flow direction, all have the effect of discouraging fish from entering the ducts. The number of pipes (20) should be sufficiently large that the intake velocity will be less than 150 mm/s (0.5 ft/s), to minimise entrainment or impingement of fish.

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 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 device for filling bags with a flowable material has a hopper with a bottom portion for receiving the flowable material. A filling socket is connected to the bottom portion of the hopper and has a vertically downwardly extending receiving section for receiving a bag to be filled. A worm conveyor is horizontally mounted within the bottom portion of the hopper and connected to the filling socket for conveying the flowable material from the hopper to the filling socket. An electric motor is drivingly connected to the worm conveyor. A switch positioned in the vicinity of the receiving section is activated upon slipping a bag to be filled over the receiving section to start the electric motor for the worm conveyor and the switch is deactivated upon removal of the bag after filling to stop the electric motor.