Invite People

Share 4Engineers with your friends and help them get started!

Emails
Enter multiple email addresses by separating it with a comma.
Back
4Engineers

Trinity River Authority’s CRWS Junction Box 1020J Replacement Honored as Sewer Project of the Year at Underground Infrastructure Conference 

This article was originally posted on Whitepapers and Case Studies: Zweig List.
Summary
The Trinity River Authority’s CRWS Junction Box 1020J Replacement in Grand Prairie, Texas won Sewer Project of the Year at the 2025 Underground Infrastructure Conference. Designed and managed by Lockwood, Andrews & Newnam (LAN), the project repaired a failed junction serving about 68 million gallons per day by consolidating large-diameter interceptors and replacing the deteriorated concrete structure with a corrosion‑resistant fiberglass fitting, all installed 50+ feet underground in a floodplain while maintaining uninterrupted service through advanced bypass pumping. The award recognizes its technical complexity, innovation, and long-term reliability benefits.

Which aspect do you think drove the biggest impact—using fiberglass components, consolidating interceptors, or managing live flows during construction?

Grand Prairie, Texas — The Trinity River Authority’s (TRA) Central Regional Wastewater System (CRWS) Junction Box 1020J Replacement and Improvement Project received the Sewer Project of the Year award at the 2025 Underground Infrastructure Conference. This accolade recognizes projects that demonstrate innovation, complexity and lasting impact on critical underground infrastructure systems. 

Designed and managed by Lockwood, Andrews & Newnam, Inc. (LAN), the project addressed the failure of a major reinforced concrete junction structure serving TRA’s wastewater conveyance system in Grand Prairie, Texas. The structure, located at the head of the Jefferson Avenue Relief Tunnel, conveys approximately 68 million gallons per day to the TRA Central Regional Wastewater Treatment Plant, making reliability essential to regional operations. 

To restore long-term system performance, the project realigned and consolidated multiple large-diameter interceptors and replaced the deteriorated junction structure with a corrosion-resistant fiberglass fitting engineered to extend service life and reduce future maintenance costs. Installed more than 50 feet below ground within a floodplain, the work required advanced bypass pumping and live flow management to maintain uninterrupted operations throughout construction. 

“This was a highly complex and critical project for TRA,” said Justin Reeves, senior business group director at LAN. “The structural failure required a technically sound solution that would not only restore reliability but improve long-term system performance without interrupting existing services. It was an excellent project to partner with TRA to deliver – for only a short section of pipeline replacement, it required detailed technical structural, hydraulic and operational analyses that ultimately were delivered smoothly through construction to create a more resilient system for their customers.” 

The Underground Infrastructure Awards, formerly known as the Underground Construction Awards, celebrate leading innovations, projects and industry professionals that have significantly impacted diverse infrastructure markets. Winners are selected by a distinguished panel of industry experts and announced at the Underground Infrastructure Conference each year. 


About LAN 

LAN is a full-service consulting firm offering planning, engineering and program management services addressing the nation’s heavy civil infrastructure needs. Consistently ranked among the top engineering companies in the country, LAN has pioneered resilient and sustainable civil engineering solutions to shape evolving communities since 1935. 

Login to comment

Login
Report content
Reason Description