Quebec Geotechnical Investigation Sites From 1980s To Present

Quebec geotechnical investigation sites contain survey and drilling data compiled by provincial ministries. The dataset includes two primary collections: an active database of surveys from the 1990s onward and an inactive historical database of drilling campaigns from the mid-1980s and earlier. A stratigraphic characteristics table can be linked to site locations using the NO_UNIQUE primary key.

Use Cases

• Map geotechnical survey site locations from the active database for regional geological assessments
• Analyze stratigraphic characteristics linked via the NO_UNIQUE key to correlate soil layers with site conditions
• Study historical drilling data from the inactive database for longitudinal analysis of soil suitability mapping campaigns
• Integrate site location data with stratigraphic information for subsurface modeling and construction planning

Strengths

• Data spans multiple decades, with active surveys from the 1990s onward and historical drilling from the mid-1980s and earlier
• Includes a separate stratigraphic characteristics table for detailed soil layer analysis at most sites
• Offers multiple file formats including SHP, GEOJSON, and CSV for flexible integration into GIS and analytical workflows

Limitations

• The inactive database is described as non-evolving, meaning its historical data will not receive updates or corrections
• Sample data and specific column definitions are unavailable, complicating initial data exploration and schema understanding
• The automated translation of metadata may introduce inconsistencies or errors in field descriptions

Provenance

Source

Government and Municipalities of Québec, Directorate of Geotechnics and Geology (DGG) and Ministry of Natural Resources and Wildlife (MRNF)

Collection Method

Geotechnical surveys produced by or for the Ministry and historical drilling data compiled by the MRNF

Time Range

Active surveys from the 1990s onward; historical drilling data from the mid-1980s and earlier (1970s-1980s campaigns)

Freshness

The active database portion is updated as data is validated; the dataset was last updated on 2026-03 25.

Geography

Quebec, Canada