Local Foundation Risk Profiles

What Do These Local Risk Profiles Include?

Each profile provides the specific soil, housing, and climate data that determines foundation risk in your location. The general science of how soil moves foundations is covered on the foundation science page. These local pages apply that science to the conditions beneath your specific suburb — because a home in Overland Park sits on different soil than a home in Ankeny, and a 1950s ranch in Raytown faces different risks than a 2010s build in Waukee.

Every local risk profile includes four types of data:

• Soil classification: The USDA soil series beneath your suburb, its clay content, shrink-swell rating, and drainage characteristics — the factors that determine how aggressively your soil moves your foundation.
• Housing stock profile: The dominant construction eras in your suburb, the foundation types used in each era, and which era-and-type combinations carry the highest risk in your local soil conditions.
• Seasonal risk timeline: A month-by-month breakdown of when your soil is most active, which foundation symptoms to watch for in each season, and how local rainfall and temperature patterns drive the cycle.
• Typical problem patterns: The specific foundation symptoms most common in your suburb, connected to the soil and housing stock that produce them.

Which Areas Are Covered?

Local risk profiles cover two metro areas across three states: the Kansas City metro (Missouri and Kansas) and the Des Moines metro (Iowa). These two markets represent two distinct geological environments — Kansas City's expansive montmorillonite clay and Des Moines' glacial till deposits — each producing foundation problems through different mechanisms. Understanding which mechanism drives your foundation's behavior is the first step toward knowing what to watch for and when.