Capturing pictures in the field has come a long way from sketchbooks and Polaroid photos. As integrated imaging enters the mainstream of modern fieldwork, surveyors are finding new applications and impressive cost savings.
For decades, California's Hetch Hetchy water system has supplied water to the San Francisco Bay Area. But the aging system is nearing the end of its useful life and is seismically vulnerable. Constructing a solution requires accurate, nerve-racking surveying.