Geotechnical Database for Utah (GeoDU)

This project includes three geotechnical borehole databases compiled in Utah (i.e., Utah, Weber and Salt Lake counties), which has been coined the Geotechnical Database of Utah (GeoDU). The database can be used to quantify geotechnical engineering properties for subsequent liquefaction evaluations of surficial geologic units comprised of similar depositional environment and age. The Standard Penetration Test (SPT) data were compiled, digitized, and stored in Matlab database files (.mat) which is the format used by Matlab software for storing variables from the workspace. The raw SPT data are summarized in two tables called SITE and BLOW, which are linked via a unique site identification number (SITEIDNO) for each SPT. The first table, SITE, contains information about each borehole site, including groundwater depth, approximate address, equipment type, data source, latitude and longitude, etc. The second table, BLOW, contains numerous data for each sample obtained during the SPT such as: sample depth, sampler properties, the soil description and classification, uncorrected SPT blow count, dry unit weight, moisture content, etc. The complete information about the database structure is located in the Database_information document included in this publication.