Floods can be very slow or fast rising, but generally develop over a period of days. Dam failures are potentially the most catastrophic of flood events. A dam failure is usually the result of structural damage caused by a major event such as an earthquake. When a dam fails, a large amount of water is suddenly let loose downstream, destroying anything in its path. Flash floods are usually the result of intense storms dropping large amounts of rain within a brief period of time.
Flash floods occur with little or no warning and can reach full peak in only a few minutes.
Contact the Department of Planning and Zoning for this information. If you live in a flood area, you should stockpile emergency building materials such as plywood, plastic sheeting, lumber, nails and sandbags. Contact your insurance agent to discuss flood insurance coverage. Flood losses are not covered under homeowner's insurance polices. Have recommended emergency supplies on hand.