The North Texas Municipal Water District (NTMWD) uses their Trinity River Main Stem raw water conveyance system to deliver up to 110 MGD to their natural wetland treatment facility 14 mi away. The pump station (PS) and pipeline construction were completed in 2020. The paper presents design and construction challenges affiliated with the 14-mi, 72-in. diameter polyurethane coated steel pipeline. The topics include combination air valve (CAV) seating pressures, heat shrink sleeve installation, surge design, major river crossings, pigging design, and prepurchasing pipe material. A collaborative effort among the design team, Construction Manager at Risk (CMAR), owner, and manufacturers were leveraged to deliver a successful project.


Access the Conference Proceedings Paper on ASCE Library 

The North Texas Municipal Water District (NTMWD) uses their Trinity River Main Stem raw water conveyance system to deliver up to 110 MGD to their natural wetland treatment facility 14 mi away. The pump station (PS) and pipeline construction were completed in 2020. The paper presents design and construction challenges affiliated with the 14-mi, 72-in. diameter polyurethane coated steel pipeline. The topics include combination air valve (CAV) seating pressures, heat shrink sleeve installation, surge design, major river crossings, pigging design, and prepurchasing pipe material. A collaborative effort among the design team, Construction Manager at Risk (CMAR), owner, and manufacturers were leveraged to deliver a successful project.


[Access the Conference Proceedings Paper on ASCE Library](https://ascelibrary.org/doi/10.1061/9780784483626.040) 

Seating, Shrinking, Surging, and Pigging: Raw Water Pipeline Design and Construction

Papers from sessions of Pipelines 2021, held virtually August 3–6, 2021. Sponsored by the Utility Engineering and Surveying Institute of ASCE. The conference provides a forum for pipeline engineers and practitioners from all around the world to share their experiences in meeting the challenges of today's pipeline infrastructure. This premier industry event has become the conference of choice for utility and pipeline owners, design and consulting engineers, contractors, manufacturers, suppliers, students, educators, researchers, and pipeline professionals. The conference includes surveying as it relates to pipeline and utility projects. This event will provide a dynamic and inspiring venue for participants to share and gain valuable knowledge related to planning, designing, constructing, renewing, operating, managing and maintaining the pipeline assets.

[Paper Proceedings](https://doi.org/10.1061/9780784483602)

Conference DOI: https://doi.org/10.26226/m.6454f875c8d4320012b71046