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Missouri Geological Survey Geo-Sciences Technical Resource Assessment Tool (GeoSTRAT)

Overburden Thickness

This generalized statewide data set is contoured to display the thickness in feet of unconsolidated materials (overburden or surficial materials) above generally consolidated formations that are older than Quaternary in age. Surficial material or overburden generally displays different characteristics with respect to load-bearing capacities and ease of excavation than the consolidated bedrock at lower elevations, with higher load-bearing capacities generally occurring in consolidated formations and greater ease of excavation generally occurring in materials above this surface. The contours can be used in a general way to interpret potential issues related to infrastructure development.