Pressurized force mains represent a relatively small percentage of the nation’s wastewater collection infrastructure, but are essential in many systems to move waste where gravity isn’t sufficient to sustain flow. Failure in a force main segment can cause major disruptions in service with costly operational and environmental consequences.
DiPaolo Construction, of Calumet City, IL, recently completed a $14 million underground utility project to install personnel access manhole structures over an existing combined storm/sanitary sewer line in the South Chicago community of Hegewisch.
May will mark the fifth anniversary of the introduction of 811, the national one-call number to request buried pipes and cables be located and marked prior to excavation or any other earth-disturbing activity.
The Northeast Trenchless Association (NTA) got 2012 off to a good start with its
annual meeting in January and already has hosted its first training event -- a safety and 10-hour OSHA training seminar in mid-February.
Pipe bursting is a technology that has matured in North America since the early 2000s. Although this technology has been proven internationally and more so domestically, there are many common myths and/or misconceptions that exist in regards to the technology and its practical application. In January 2012, the IPBA released a guideline for pipe bursting that provides support and reference to the items discussed in this article.
The Underground Construction Technology International Conference & Exhibition (UCT) made a return visit to San Antonio in January drawing a crowd of more than 2,450 and hosting ancillary association and private corporate business meetings. Previously, UCT was in San Antonio in 2009.
The old adage “don’t muddy the water” doesn’t apply to horizontal directional drilling (HDD) where the water is supposed to be muddy. Drilling fluid (mud) extracts particles and cuttings from the bore hole, as well as stabilizes the hole itself. Mud has always been an essential element to a successful drilling operation.