Missouri Boring Logs & Geotechnical Data
7,654 public boring logs in Missouri; 7,361 with digitized SPT, soil or CPT data; 293 scanned log PDFs. Sources include Missouri DOT (MoDOT), St. Louis County, USGS CPT program, plus public reports found by web crawl. Free to search on the map, download or query by API.
Where the data comes from
- Missouri DOT (MoDOT)3,689
- St. Louis County2,328
- Public reports collected by web crawl1,563
- USGS CPT program47
- University of Nebraska–Lincoln15
- Illinois State Geological Survey (ISGS)12
Web-crawled reports in Missouri were published on, among others: modot.org, gsa.gov, aeci.org, oa.mo.gov, navigationdistrict.org, msdprojectclear.org.
Counties with the most boring logs
| County | Boring logs | |
|---|---|---|
| St. Louis | 2,000 | view on map |
| St. Louis | 705 | view on map |
| Greene | 471 | view on map |
| Jackson | 412 | view on map |
| St. Charles | 357 | view on map |
| Boone | 264 | view on map |
| Clay | 246 | view on map |
| Jefferson | 136 | view on map |
| Platte | 126 | view on map |
| New Madrid | 122 | view on map |
| Cole | 118 | view on map |
| Cape Girardeau | 96 | view on map |
What's in a boring log from Missouri
The 7,361 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 293 logs are scanned PDF reports — the original agency drawings — which you can open and download from the map. Holes are typically about 28 ft (9 m) deep; one in twenty goes past 95 ft (29 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 Missouri 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 →