Do not let them become trapped in low-lying pens. In broad, level flood plains where flood waters are seldom deeper than 3 or 4 feet, construct mounds of soil on which livestock can stay until flood waters recede. Or carry bales of hay for hogs to climb on. Try to locate these mounds where they will not be washed way by fast flowing water. Provide feed and water.
Water is essential.
Thirsty animals will try to break out to get to flood waters. If water is in short supply, limit feed intake. If animals are housed with machinery, fasten bales of straw in front of sharp edges and protruding parts such as cutter bars or crank handles. Do not use hay because animals will eat it. Try to cover wooden paddle wheels on combines or choppers because these parts can be dangerous if partially broken.