Sioux Steel Company

Gerry D Breen

Donald J Siglin

Gary D Seeba

William H Hockenberry, Jr

An environmental control dike system constructed of a plurality of bolted steel sections supported by steel posts set in concrete below average frost depths, the interior area of the steel wall having a synthetic liner cover with mating geotextile pad, joined to the flanged top of the steel wall by a plurality of V-shaped steel clamps sized to securely form the synthetic liner and geotextile pad, compressed gently but firmly, into a 180 degree fold around the flanged top of the steel wall, the V-shaped steel clamp being held securely in place by a plurality of self drilling screws into the top flange of the steel wall. The connection between the steel wall and steel posts is secured with two bolts having a gasketed steel washer under the head of the bolt, the bolt passes through a round hole in the steel wall and through a slotted hole in the post allowing differential movement due to frost heaving between the post and the wall, the post having been set in concrete below average frost depth moves very little due to frost heaving of the soil, the wall sheet placed no more than six inches into the soil will be moved a greater distance due to frost heaving, the bolt passing through the slotted opening in the post having a concentric steel bushing with a dimension greater than the thickness of the steel post when the nut is tightened on the bolt prevents subsequent locking action between the post and the wall. The posts can support a fencing system thereby avoiding the need to install a duplicate system.

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Baltic, SD, United States of America

Gerry D Breen