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<br /> <br /> <br /> <br />I <br /> <br /> <br />------- <br /> <br />~ <br /> <br />" <br /> <br />Figure 35.-Flood shields at a shopping arcade. These shields are hinged on the outside <br />of the display window on the ceiling above the arcade and drop down in front of the glass. <br /> <br />flood proofing. In some cases, this level can be raised by using contingent and emergency <br />flood proofing measures. <br />At entrances for building personnel, or other service entrances, flood shields can be <br />entirely functional. Figure 36 illustrates an entrance where the flood shield slides along <br />on a rack on the outside wall beside the entrance it is designed to close. When flooding <br />threatens, the shield can be slid into position and bolted into place. In many cases small <br />steel security doors can also become flood shields when gaskets and bolts are provided to <br />make them watertight. . <br />Figure 37 is a photograph of a large flood shield in storage position. When floods <br />threaten, the grill on the floor at the entranceway is taken up and the massive door is <br />moved along the track into position over the doorway and bolted into place. The sketch in <br />Figure 38 illustrates a flood shield ready to be bolted into place. A neoprene gasket around <br />the edge makes a watertight seal against the frame. <br />Figure 39 shows flood shields which protect the loading dock area at a department <br />store. These shields are hinged on top and can be lowered (flap down) into position against <br />the loading dock after the wooden bumpers have been removed and then bolted into place. <br />Ropes used to lower the shields are attached to the large rings above them. At some door- <br />ways it is possible to d.esign lightweight aluminum flood shields which hinge on the sides <br />and close like any other door (Figure 40). The shields in this illustration also serve as a <br />fireproof door. <br /> <br />45 <br />