Sewer rehabilitation for capacity increase fast track solution for providing required capacity

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The large North Carolina municipality had an obligation to provide sanitary sewer services to a development located in the downtown area. The existing sewer in the area was not sufficient to meet the demand and the increased capacity needed to be provided within three months. This paper outlines the required sewer assessment procedure and rehabilitation method selection. The ultimate solution involved a combination of open-trenched new sewer, point repair, pipe bursting, and cured-in-place pipe. The advantages, disadvantages, and design considerations of each technology are presented. The paper presents the issues and solutions that came up during construction. The entire project, including design, approval and construction, was completed in three months.

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