Home | Equipment | Services | Staff | Equipment for Sale

Company Profile

CRAIG TEST BORING CO., INC. is fully equipped and professionally staffed to provide a complete range of subsurface explorations and geotechnical engineering.  Subsurface investigations to determine bearing capacity and suitability for planned construction is accomplished with a modern fleet of truck and all-terrain drill rigs.  These rigs are operated by experienced drillers who utilize driven casing, hollow stem auger and mud rotary drilling methods.  An in-house engineering staff maintains supervision and monitoring of the soil investigations.

Because classification and evaluation of soil properties are critical to design and construction, the laboratory staff is trained in the latest ASTM Identification Methods.  Interpretation of test boring data is carried out by licensed professional engineers and provides the basis for foundation, pavement, utility and landscaping recommendations.  Among the soil testing services available are standard penetration sampling, auger borings, rock coring, installation of groundwater observation wells, installation of groundwater monitoring wells and complete engineering analysis, including field supervision, foundation recommendations and design.  

CTB’s field technicians are trained to implement the recommendations of its professional staff as determined by the Geotechnical Division.  Field services include test pit examination, environmental reconnaissance, percolation testing, controlled fill placement testing, footing bottom inspection, bearing capacity determination, pile monitoring, soil load tests, pile driving supervision and under-pinning controlled inspection.  Laboratory soil tests involve identification and classification, bearing capacity, compaction and consolidation characteristics, soils sieve analysis, soil aggregate analysis and permeability tests.