Pipe & Excavation Contracting, Dave Roberts, 2011. This popular manual has been updated and improved to bring it more current with modern earthmoving and trenching equipment, refined excavation techniques, stricter safety rules, and improved materials. Here you'll find how to enter and succeed in the underground utility business. Includes hands-on instructions for operating the equipment and doing the trenching, pipe laying and connecting work and answers to what causes so many skilled equipment operators and pipelayers to fail when they try to start their own business.