Alabama Boring Logs & Geotechnical Data

9,996 public boring logs in Alabama; 7,829 with digitized SPT, soil or CPT data; 2,167 scanned log PDFs. Sources include Alabama DOT (ALDOT), Georgia DOT (GDOT), plus public reports found by web crawl. Free to search on the map, download or query by API.

Counties with the most boring logs

What's in a boring log from Alabama

The 7,829 digitized borings carry the data engineers actually use: SPT blow counts (N-values) by depth, soil and rock descriptions, groundwater observations and, where the source ran cone penetration tests, CPT tip resistance and sleeve friction. A further 2,167 logs are scanned PDF reports — the original agency drawings — which you can open and download from the map. Holes are typically about 24 ft (7 m) deep; one in twenty goes past 97 ft (30 m). Not sure what a boring log looks like? See annotated example boring logs.

How to get this data

• Map — pan to a site, click a boring, and view the log, the original PDF, or an ML soil-profile prediction. No account needed.
• Downloads — every boring exports as PDF, DIGGS XML or AGS4; draw a polygon on the map for a multi-boring export or a site report.
• API — query borings by coordinates or bounding box, pull SPT/CPT/lab records, and generate site reports programmatically.
• Contribute — have Alabama boring logs that are not here yet? We take PDFs, DIGGS, AGS and spreadsheets.

This data was collected from public agencies and is republished as-is. It is a planning tool, not a substitute for a site investigation; see the terms and disclaimer. Counts refreshed 13 October 2026.

Other places

Washington (199,045)Florida (172,401)North Carolina (102,530)Ohio (80,932)Oregon (73,397)California (58,907) all regions →