The North Harris County Regional Water Authority planned the Project 28 series of water transmission alignments for a second water system loop to provide additional surface water and to meet the 2025 Harris-Galveston Subsidence District conversion mandate. Project 28D is a critical alignment within the Project 28 series located in northwest Houston which consists of 11,300 LF of 60-in. and 400 LF of 84-in. water transmission mains within easements and along drainage channels. Design of this project began earnestly in 2015; however, natural disasters occurred causing regulatory changes that required multiple design adjustments and delayed the completion of the design. New development also occurred along the project alignment which also required changes to the design. How the design team responded to the regulatory changes and proactively worked with property owners of the new developments ensured the project’s future success. Project 28D is now scheduled to begin construction in early 2021.


Access the Conference Proceedings Paper on ASCE Library 

The North Harris County Regional Water Authority planned the Project 28 series of water transmission alignments for a second water system loop to provide additional surface water and to meet the 2025 Harris-Galveston Subsidence District conversion mandate. Project 28D is a critical alignment within the Project 28 series located in northwest Houston which consists of 11,300 LF of 60-in. and 400 LF of 84-in. water transmission mains within easements and along drainage channels. Design of this project began earnestly in 2015; however, natural disasters occurred causing regulatory changes that required multiple design adjustments and delayed the completion of the design. New development also occurred along the project alignment which also required changes to the design. How the design team responded to the regulatory changes and proactively worked with property owners of the new developments ensured the project’s future success. Project 28D is now scheduled to begin construction in early 2021.


[Access the Conference Proceedings Paper on ASCE Library](https://ascelibrary.org/doi/10.1061/9780784483619.031) 

Changing Regulations and New Developments Along a Pipeline Alignment Over an Extended Design Timeframe

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