Means and apparatus for controlling fluid currents and selectively preserving and modifying topography subjected thereto

Claim 1

Reaction means for fluid currents to selectively modify the action of such currents on the topography of a given situs and accrete alluvium entrained therein comprising: securing means mounting said reaction means at said situs in the path of said currents; an elongated curvilinear surface concave on a first face thereof defining an open face for said reaction means for receiving first currents and convex on the opposite face thereof for impingement by second currents opposed to said first and deflection of laterally directed currents; and at least two partitions substantially normal to said concave first surface and extending outward therefrom toward said open face; said concave surface reacting with impinging currents to create opposing currents attenuating the energy of said incoming currents and causing accretion of alluvium suspended therein adjacent said open face; and said partitions providing structural rigidity to said curvilinear surface and acting to impede the flow of current laterally of said concave surface; wherein said securing means includes a base on said reaction means and hold-down means selectively interconnected with said base to selectively orient said curvilinear surface and said faces thereof with reference to a given direction of fluid current; wherein said base includes first, second and third mounting ports defined in said base and disposed in a triangular array, one of said ports being centrally located on said base adjacent said open face and said base being substantially coterminate with the length and breadth of said reaction means; and wherein said hold down means includes pivot means securing said base at said situs through said one of said ports and an array of ground anchor means positioned about said pivot means selectively engageable with remaining respective ones of said ports.