Discovery Series D152 crossover hydraulic excavators from Gradall Industries combine the versatility and benefits of a tilting, telescoping boom with the reliable over-the-road mobility of a Freightliner truck chassis in one package. Specially designed to handle projects frequently addressed by county and state governments, the units are adept at ditching, grading, culvert replacement, landscaping, mowing, vegetation control, and removal and replacement of curbs, gutters and sidewalks. They can be driven to one or more job sites without the need for a lowboy trailer. The D154 model is four-wheel-drive with an automatic transmission and over-the-road travel at highway speeds. The chassis can efficiently be repositioned along the length of a ditch or around the site from the upper-structure cab. 330/339-2211; www.gradallindustries.com