A study funded by the Plastics Pipe Institute Inc. (PPI) that evaluated the successful use of corrugated, high-density polyethylene (HDPE) pipe for use under heavy rail car loads with shallow cover, is now available on-line: www.plasticpipe.org/drainage/cppa_technical.html.
In a transaction that surprised most of the underground construction industry, the Earth Tool Co. and its HammerHead product line was acquired by The Charles Machine Works Inc., manufacturer of Ditch Witch equipment.
Don't gamble with your safety — if you're a professional excavator or a homeowner, smart digging always requires a call to 811. Knowing where underground utility lines are buried before you dig will help protect you from injury and prevent damages to utilities, service disruptions and potential fines and repair costs.
In 2010, the North American Society for Trenchless Technology (NASTT) celebrates its 20th anniversary. Founded in 1990, NASTT is composed of trenchless professionals who are concerned with underground systems and the applications of trenchless technology.