A quay wall absorption block includes a back wall, a cap, and a half columnar wall extending between the back wall and cap. The half columnar wall defines a plurality of chamber surfaces and mating surfaces on opposite sides thereof such that the chamber surfaces define portions of a plurality of closed-end flow chambers on opposite sides of the half columnar wall when the mating surfaces are in contact with corresponding mating surfaces of other quay wall absorption blocks. The half columnar wall also defines a plurality of flow paths that extends therethrough to fluidly connect the plurality of closed-end flow chambers on opposite sides of the half columnar wall.

A quay wall absorption block includes a back wall, a cap, and a half columnar wall extending between the back wall and cap. The half columnar wall defines a plurality of chamber surfaces and mating surfaces on opposite sides thereof such that the chamber surfaces define portions of a plurality of closed-end flow chambers on opposite sides of the half columnar wall when the mating surfaces are in contact with corresponding mating surfaces of other quay wall absorption blocks. The half columnar wall also defines a plurality of flow paths that extends therethrough to fluidly connect the plurality of closed-end flow chambers on opposite sides of the half columnar wall.

A water area may be sheltered by installing, at an active boundary of the water area, a plurality of shields mounted on posts, each shield having a lower edge immersed in the water. Each shield may dissipate at least a portion of wave energy approaching the active boundary of the water area. One or more piers may be positioned within the sheltered water area or basin.

A water area may be sheltered by installing, at an active boundary of the water area, a plurality of shields mounted on posts, each shield having a lower edge immersed in the water. Each shield may dissipate at least a portion of wave energy approaching the active boundary of the water area. One or more piers may be positioned within the sheltered water area or basin.

The invention describes a system for creating portable, porous structures for restoring coastline. The invention provides for a bag with multiple longitudinal pockets. The bag is made of porous natural or synthetic mesh material and the pockets are filled with lightweight, porous manufactured aggregate. In a preferred embodiment, the lightweight aggregate used in this invention is produced by thermal fusion of silicate clays in a rotary kiln. In another preferred embodiment, multiple bags are encased in a flexible grid material to form a mat. In another embodiment, the mat can be rolled into a log. The bags, mats, and logs can be placed on shorelines and other locations to restore coastline.

A corrosion-resistant cover system, having a corrosion-resistant cover structured and configured to be arrangeable around an object having one or more metallic surfaces that are susceptible to corrosion. The corrosion-resistant cover is operable to provide increased corrosion resistance to the object by preventing contact between the one or more metallic surfaces and ambient conditions exterior to the corrosion-resistant cover.

Submersible isolation enclosure apparatus constructed of flexible, water resistant to water proof fabric or sheeting for enclosing and isolating selected areas of water bottom and water volume from surrounding water with access to the isolated bottom area exposed within a Base Member through one or more closed wall, tubular Access Member(s) connected to the Base Member and accessible from the water surface. Center-radial and perimeter portions of the Base Member fitted with attachment points and one or more tubular, closed wall Sleeve Members to allow for use of floatation, internal supporting rods or piping, and weights, to assist in the movement, positioning, shaping and securing of the apparatus to the selected water bottom area. Flexible fabric and weighting system allows the lower perimeter of the Base Member to conform to bottom structure.

A benthic barrier in which a polygonal shaped mat having straight sides is mounted on a similarly polygonal frame, but in which the frame sides bow out slightly between corners, causing the mat to stretch slightly and become taut. The frame comprises a plurality of straight leg members and a number of corner members as required by said polygonal shape. The corner members encompass interior angles which are from about 1 to about 5 degrees greater than the interior angle of the polygon defined by the straight sides of the mat. The frame member legs are rigid, but slightly flexible such that when assembled into the mat as an assembled frame, the straight legs are forced to bow out slightly between the corners, pulling the mat taut.

A benthic barrier in which a polygonal shaped mat having straight sides is mounted on a similarly polygonal frame, but in which the frame sides bow out slightly between corners, causing the mat to stretch slightly and become taut. The frame comprises a plurality of straight leg members and a number of corner members as required by said polygonal shape. The corner members encompass interior angles which are from about 1 to about 5 degrees greater than the interior angle of the polygon defined by the straight sides of the mat. The frame member legs are rigid, but slightly flexible such that when assembled into the mat as an assembled frame, the straight legs are forced to bow out slightly between the corners, pulling the mat taut.

The present invention relates to apparatuses, methods, and systems for removing sediment from waterway bottoms and pumping the sediment through pipelines. More particularly, the present invention relates to apparatuses, methods, and systems for sediment control and altering the average effective depth in a section of rivers, streams and channels for maintaining the navigability of waterways and coastal restoration. The apparatus preferably comprises a sediment harvesting platform preferably positioned above a water surface; a sediment suction inlet or sediment sink preferably positioned below the top level of source sediment or within a sand bar including a grating, a sediment pump, a venturi including an auger/propeller, and a water jet; a flow control valve; and a pipeline for pumping sediment. The apparatus may further comprise a sediment conveyor including sediment inlets and a remote controlled pulsing valve. The apparatus may further comprise sensor(s) and a programmable logic controller (PLC). The method of the present invention preferably comprises removing sediment from waterway bottoms with at least one apparatus of the present invention. The system of the present invention preferably comprises a plurality of apparatuses in either series or parallel design for sediment control and altering the average effective depth in a section of a waterway.