Federal Higways has a manual entitled Application of Geophysical Methods to Highway Related Problems. It provides basic information on a broad range of applications, from subsurface profiling to non-destructive testing of drilled piers and bridge decks.
Go to http://www.cflhd.gov/geoTechnical/ <http://www.cflhd.gov/geoTechnical/> I would click on "Web Version." "Solution Matirx" is a good place to start from there.
Ed Kavazanjian.
Application of Geophysical Methods to Highway Related Problems