News

Construction is Underway on Phase 1 of City of Chattanooga’s e2i2 Program

New Sewer Infrastructure Will Reduce Sanitary Sewer Overflows and Support Future Development in Chattanooga

The progressive design-build team of Brasfield & Gorrie and Gresham Smith is at work on construction of two new wet weather equalization (EQ) stations and improvements to two interceptor sewer lines for the City of Chattanooga Wastewater Department.

The project is the first phase of the City’s Environmental and Economic Infrastructure Improvements (e2i2) portion of “Clear Chattanooga,” the City’s Sewer Overflow Abatement Program. The EQ stations will reduce the occurrence of sanitary sewer overflows during heavy rain events and add capacity to increase reliability and accommodate Chattanooga’s future growth and development.

“This project has thus far been a model for collaborative delivery, which enabled the design team to achieve all of the design milestones on-time and fast track the start of construction,” said Craig Parker, P.E., Senior Vice President at Gresham Smith. “This has been a great experience for our team, and we are excited that the new facilities are under construction.”

“The design-build model offers many benefits, such as improved schedules and innovation in design and construction, but that’s not possible without collaboration,” said Brasfield & Gorrie Vice President and Division Manager Ben Harris. “We’re grateful we can leverage our design-build experience to benefit the people of Chattanooga.”

Located along South Lee Highway and West Chickamauga, the new EQ stations will consist of above grade prestressed concrete EQ tanks, which will store approximately 10 million gallons (MG) and 30 MG, respectively, as well as a wet weather diversion structure and an EQ pump station. Additionally, at the South Lee Highway location, the team will increase sewer capacity and will perform sewer rehabilitation in two sections of the City’s interceptor sewer system.

The project team also includes program manager Jacobs, as well as Croy Engineering, Terracon Consultants, Barge Design Solutions and JDS.

About Gresham Smith

Gresham Smith is a top-ranked architecture, engineering, design and consulting firm with $354 million in annual gross revenue and 26 offices across the United States. We provide full-service solutions for the built environment with a focus on the aviation, building engineering, healthcare, industrial, land planning, life and work places, transportation, and water and environment market sectors. Throughout all of our work, we are united in our Core Purpose: to plan, design and consult to create healthy and thriving communities. Consistently ranked as a “best place to work,” we are committed to creating a culture that fosters diversity of experience combined with a common goal of genuine care for each other, our partners and the outcome of our work.

About Brasfield & Gorrie

Since Brasfield & Gorrie started in 1964, we’ve grown from a local contractor to a national construction company with 13 offices in eight states. We’ve helped clients complete projects that transform communities and power economies. In 2024, we had $6.4 billion in revenue and Engineering News-Record currently ranks us #22 on its Top 400 Contractors list. And during our growth, we’ve maintained the identity that sets us apart—true builders guided by the Golden Rule.