What is a Preliminary Geotechnical Report?
• A Preliminary Geotechnical Report describes general topography and geology of a site location, including subsurface conditions, and provides initial information to be used by project architectural and structural, consultants. Recommendations are given for which type of foundations would be most economical for the proposed. structure, such as: maximum allowable soil bearing pressure, lateral earth pressures, and friction coefficients. Most building officials require submittal of a preliminary soils report as part of the building permit processing. • The Preliminary Soils Report enables the preparation of site grading plans by civil engineering consultants and provide information needed by earthwork and utility contractors for preparing cost estimates. • The Preliminary Soils and Foundation Report will highlight site topographic and subsurface conditions that are critical to a successful project. • Preliminary design coefficients are often given in a Preliminary Soils Investigation to
