Crossing Lake Oahe was one of the most challenging aspects of constructing the new transmission line because of the lake's length and depth. The original design called for a 3,660-lin ft HDD installation beneath one of the lake's major tributaries. With a depth of nearly 100 ft, the design required 24-in. fusiblbe PVC pipe...
Underground Solutions provides infrastructure technologies for water and sewer applications. UGSI's Fusible PVC® products contain a proprietary PVC formulation that, when combined with UGSI's patented fusion process, results in a monolithic, fully-restrained, gasket-free, leak-free piping system. Fusible C-900® and Fusible C-905® both comply with AWWA C900 and C905 respectively and are certified to NSF 61.
Tuesday, February 9, 2010
In August 2009, King Contracting, Lincoln, Neb., completed a record-breaking horizontal directional drill (HDD) of 4,800 lin ft of 24-in. fusible polyvinyl chloride (PVC) pipe under Lake Oahe near Wakpala, S.D. The HDD crossing was part of an 80-mi raw water transmission pipeline being constructed by the Standing Rock Rural Water Sioux Indian Tribe.