Geotechnical Engineering

The Geotechnical Engineering Services are provided by Professional Engineers, Geologist and highly trained drill crews and lab technicians. Our staff has extensive experience allowing us to provide high quality engineering services enabling you to construct a useful, reliable and economical structure. Services provided involve geotechnical recommendations including bearing capacity, expansive soil movement, shallow and deep foundations, settlement studies, retaining wall analysis, slope stability, lateral earth pressures, earthwork and subgrade preparations, pavement design as well as advanced geotechnical testing.

Construction Materials Engineering Testing

Licensed professional engineers oversee D&S’ construction materials testing projects. Our technical staff has extensive experience working with our clients ensuring proper design criteria are referenced, quality materials are being used, and construction proceeds according to the project plans and specifications, in order to ultimately protect the owner and to keep the public safe. Licensed professional engineers oversee D&S’ construction materials testing projects and are available to trouble-shoot should issues arise during construction.

Geotechnical Drilling

D&S owns its own drilling rigs allowing us to perform field investigations without relying on sub-contractors. D&S’ fleet includes one CME-75, two mobile B-58s, one Moble B-47, an ATV-Mounted CME 550 and a rubber tracked skid mounted rig for unique cases. D&S can perform field investigations through drilling and sampling soils and rock strata using continuous flight augers, hollow-stem augers, and rock-coring equipment. Our ATV mounted rig allows D&S to negotiate soft ground conditions soon after inclement weather enabling additional schedule maintenance.