Low angle view of man operating a yellow John Deere excavator to cover a drainage tube for a pond at a new land development site

earthmover digging bulldozer excavate excavator backhoe culvert digger drainage contractor construction pipe laborer ditch equipment shovel worker soil dozer landscaping dirt surveyor bucket clay hydraulic machine men tube level corrugated power building operator man slope dangerous devleopment pond scoop hazardous measure tile blue colar teeth calculus infinity lake