Delwood Super Station Design-Build

Hillsborough County, FL
The Phase II Delwood Super Station Project is one of three design-build projects for Hillsborough County under a program to consolidate three existing wastewater treatment facilities (WWTF) to one expanded facility and two master wastewater pump stations.

This $11 million project specifically repurposed the Dale Mabry Advanced WWTF to a 10-mgd triplex master pump station, relocated the Brushy Creek 6-mgd reclaimed water outfall facility, and a public park.

Reiss executed this local design-build project in close collaboration with Hillsborough County and the contractor to keep the WWTF fully operational until the new pump station, wastewater force main, and reclaimed water transmission mains were constructed and placed into operation.

The design included installation of the wet wells partially submerged and partially above ground to save significant operation and maintenance costs long term. The design also reduced capital costs by requiring lower horsepower pumps and simplifying the construction due to less excavation and dewatering. The design approach also provided for the upstream lift stations to continue to operate efficiently by more closely matching the original head conditions to the elevated headworks structure of the WWTF.

The project included domestic waste permitting through the Hillsborough County Environmental Protection Commission (EPC) and NPDES permitting for a reclaimed water discharge through the Florida Department of Environmental Protection (FDEP) Southwest District. Additionally, the collaborative delivery method of design-build was necessary for the successful execution of a fast-tracked schedule and coordination with the overall Northwest Consolidation Program, which defined the design, permitting, and construction to be completed within 21 months.

Data Points

  • Size: 10-mgd triplex master pump station, a 6-mgd reclaimed facility, and a public park
  • Scope: Planning, preliminary and final design, permitting, bidding, and construction phase services
  • Duration: 21 months

Project Components

  • Design/Build
  • Planning
  • Preliminary and Final Design
  • Permitting
  • Construction Phase Services
  • Fast-Tracked Project

Key Benefits

  • Innovative design
  • Reduced capital operation and maintenance cost
  • project resulted in a neighborhood friendly public park

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