Geisel adopted his Dr. Seuss pseudonym during his university studies at Dartmouth College and the University of Oxford. After leaving Oxford in 1927 he began his career as an illustrator and cartoonist for Vanity Fair, Life, and various other publications.
Underground Infrastructure Mapping. At Geospatial, we provide technologies to map all infrastructure including oil and gas pipelines, water, sanitary, pressurized and non-pressurized, metallic, non-metallic, fiberglass, plastic, electrical, CATV, telephone, steel, ductile iron and much more.
OSHA defines an excavation as any man-made cut, cavity, trench, or depression in the earths surface formed by earth removal. A trench is defined as a narrow underground excavation that is deeper than it is wide, and is no wider than 15 feet (4.5 meters). Dangers of Trenching and Excavation. Cave-ins pose the greatest risk and are much more likely than other excavationrelated accidents to result in worker fatalities.