Bay Area Utility Location
In the Bay area utility location markers in a rainbow of colors liven up sidewalks and streets. Those location markers indicate the presence of utility lines beneath the surface, but to really “see” what’s down there requires specialized technology. Modern excavation construction projects depend heavily on ground penetrating radar (GPR). As the name suggests, ground penetrating radar employs radar technology. The acronym stands for radio detection and ranging. Basically, radar is the transmission of a signal via antenna, which bounces off objects in its path. A receiver picks up the signal on the rebound. The technology has been around for...