This paper demonstrates quality control methods for large-diameter pipeline projects, highlighting inspections and structural integrity.
Union County's Yadkin Regional Water Supply Project addresses the pressing need for a sustainable water supply, driven by a projected population increase of over 100,000 within two decades. This project secures a reliable source from the Yadkin River Basin and Lake Tillery, serving over 180,000 customers across Union and Stanly Counties and the Town of Norwood. Key infrastructure includes a new raw water intake, a 45-MGD pump station, and nearly 30 mi of large-diameter steel pipeline. This paper examines the methodologies employed during the pipeline installation, focusing on extensive welding and bolting inspections vital for structural integrity and system longevity. With over 98% of welds passing initial inspections, the project demonstrates the value of meticulous planning and rigorous quality control. Attendees will gain insights into managing large-diameter pipeline projects, emphasizing strategies to enhance efficiency, safety, and reliability in future water supply systems.
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Anderson et al. (2025) studied this question.
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