The project: IMEG served as lead structural engineer for this 350-million gallons per day (MGD) pump station, providing both high service and low service distribution for the City of Dallas.

The goal: The objective was to design a structurally sound, efficient, and cost-effective pump station within a space-constrained site, ensuring safe construction and long-term operational accessibility.

Scope of work: Bordered by existing plant and Dallas Area Rapid Transit (DART) rail facilities, the site posed challenging excavation and shoring design considerations for which IMEG developed unique systems to minimize cost while improving construction site accessibility and safety. The high service pumps consist of 3,000-horsepower horizontal split case pumps with variable frequency drive (VFD) motor control supported on operating floors at 40 feet below grade. The low service pumps are also split case pumps at 1,000 horsepower and serve plant filter backwash needs. Structural design included compression strut systems to minimize structural costs while maintaining full operations and maintenance access to the station.

The outcome: The project successfully delivered a high-capacity pump station that met the City’s operational needs while optimizing cost, safety, and long-term functionality through innovative structural and excavation solutions.