Pipelines 2018
Balancing Prescription and Innovation through Design-Build of a Major Recycled Water Conveyance Project
Publication: Pipelines 2018: Planning and Design
ABSTRACT
The city of Modesto's North Valley Regional Recycled Water Program is one of the largest water recycling projects in the country, constructing a 32 million gallons per day (121,100 cubic meters per day), 3,000-horsepower (2,200 kW) pump station, 7 mi (11.2 km) of 42-in (1.06 m) diameter pipeline with a 2,800-ft (0.9 km) horizontal directional drill, a jack and bore highway crossing, and an outfall structure to the federally owned Delta Mendota Canal. Funding this major project came with aggressive schedule requirements. To meet these requirements, Modesto chose a new approach: design-build. Using this approach, Modesto was able to finish the project a year faster compared to traditional design-bid-build. This paper describes Modesto's approach to leveraging the benefits of design-build while including requirements important to Modesto. It describes the design-build procurement process, from developing a procurement strategy to implementing a two-stage selection process, and ultimately selecting a design-builder. The paper also discusses the lessons learned, such as the need to involve the design-build team early on and to balance cost and non-cost evaluation criteria. Finally, it discusses the project's successes and failures and makes specific recommendations to avoid potential pitfalls while harnessing the benefits of design-build. The project was deemed substantially complete in December 2017.
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Acknowledgements
In addition to our many colleagues at the City of Modesto and Carollo Engineers, the authors would like to thank Stantec, Myers and Sons, Steve P. Rados, and Woodard and Curran that have reviewed and contributed to this paper. We acknowledge numerous others that are part of the NVRRWP and other consultants and contractors. We thank Christine Ellenberger and Rich Mielke, for their review comments on an earlier draft of this paper.
REFERENCES
City of Modesto, Request for Proposals to Provide North Valley Regional Recycled Water Program Design-Build (DB) Services, Volumes 1, 2, and 3, March 2016.
City of Modesto, Draft Environmental Impact Report / Statement: North Valley Regional Recycled Water Program, January 2015.
Information & Authors
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Published In
Pipelines 2018: Planning and Design
Pages: 284 - 292
Editors: Christopher C. Macey, AECOM and Jason S. Lueke, Ph.D., Associated Engineering
ISBN (Online): 978-0-7844-8164-6
Copyright
© 2018 American Society of Civil Engineers.
History
Published online: Jul 11, 2018
Published in print: Jul 12, 2018
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