Manholes are critical assets of the nation's underground wastewater infrastructure. Recently updated manhole inspection and rehabilitation guidelines are aimed at improving manhole structural integrity by identifying issues and the appropriate methods of repairing and rehabilitation so that timely maintenance prevents major problems.
With typical daily temperatures barely topping 5 degrees Fahrenheit, winters in Calgary, Alberta, can easily hinder trenchless operations. Liquids in machinery can freeze solid, while expanding groundwater can potentially warp rails and other equipment in launch pits.
When Doosan Infracore Construction Equipment acquired Bobcat Company in 2007, many wondered how the long-distance relationship with the South Korean manufacturing giant would work out. Now, almost three years later, the answer is clear. Bobcat is reinvigorated and aggressively improving their equipment while continuing to expand the product lines.
Most sewer infiltration enters structurally sound sewer systems through joints, manholes, service connections and the first few feet of the service lateral. This infiltration adds to treatment costs and increases the risk of sanitary sewer overflows (SSOs). A proven and economical way to permanently stop these leaks is with chemical grout.
Roughly 280 delegates braved the weather and travel to attend the 56th annual meeting held at the Sheraton in St. John’s Newfoundland. There were representatives present from 16 regular and 46 associate member firms, plus the pipeline craft unions and various guests including several past presidents. At the end of 2009 the association had 34 regular members and 66 associates.
The BP Deepwater Horizon spill continues to have ramifications for pipeline safety even though pipelines -- neither gas nor oil -- had nothing to do with that Gulf of Mexico disaster. Nonetheless, "BP" is an entry point for Congress and others to show renewed concern about potential environmental accidents from all sorts of energy activities.
John Deere has added an Interim Tier 4 (IT4) engine option for its 744K 4WD loader. The John Deere PowerTech 9.0-L IT4 diesel engine uses cooled exhaust gas recirculation technology to meet emissions regulations while producing 304 hp.
Digital Control Incorporated (DCI) has introduced the DigiTrak F5 locating system, the top-of-the-line model of the company’s new F Series horizontal directional drilling locating and tracking equipment.
Each F Series model incorporates DCI’s successful Eclipse tracking technologies, including DCI’s patented 3D antenna technology, target-in-the-box locating and intuitive picture-driven menus.