You will want to fill sandbags half full of clay, silt or sand, but do not tie them. Stack them in alternating directions with the unfilled portion under the next bag. Spread plastic sheets over the dike and secure them with a row of sandbags to seal it. The dike needs to be three times as wide as it is high. In the event of a flood, you should review your homeowners insurance policy.
Many plans cover all natural disasters except floods.
Make sure your plan covers flooding and find out to what extent your property is covered. It is also a good idea to know if your community participates in the National Flood Insurance Program. Recommendations on this web site do not endorse any commercial products or trade names.