About the Floodplain

What Is the Floodplain?

A floodplain is the area that is affected when rivers and streams overflow their banks. When most people talk about the floodplain they are talking about the "100 year floodplain."

This is an area that scientists say has at least a 1% chance of flooding in any given year. Some parts of the 100 year floodplain have a much greater chance of flooding each year.

The last 100 year flood in Lansing was in 1904 on the Grand River. The 1975 flood on the Red Cedar River was only a 25 year flood (a 1 in 25 chance of happening in any given year) in Urbandale, and a 50 year flood in the Potter Park area.

As bad as the 1975 flood was, a 100 year flood will be worse. About 4,500 people live in the 100 year floodplain. There are over 200 businesses. Only about 1 in 4 have flood insurance. That means that there will be about $172 million in uninsured losses to families and businesses in the next 100 year flood.

If you live inside the floodplain you should have flood insurance, but there is nothing magical about the 100 year line on the map. Living outside the line doesn't automatically protect you from flooding. Floods can happen anywhere. The next major flood could be a "101 year flood."

There will be another major flood in Lansing. Homes and businesses will be flooded, some with 12 feet or more of water. People will lose valuables, some will lose everything they have.

Find out what your flood risk is and learn how to protect your family and property.

Do You Live in the Floodplain?

  • Call 517-483-4069 to find out if you live in the floodplain.
  • Call 517-483-4110 to find out what you can do to protect yourself, your family, and your property.