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Atlantic Site Distribution Center

Tampa, Florida

Stormwater Detention

Owner:

Chestnut Hill Investments, Inc.

Engineer:

Kimley-Horn and Associates, Inc.

Contractor:

Plateau Excavation / Dewitt Excavation

Installation:

Summer 2021

Technical Description:

  • 13,762’ of 40” Perforated Aluminized Steel Type 2
  • 17,696’ of 48” Perforated Aluminized Steel Type 2

An 82-acre site on the east side of Tampa was selected by an online retailer to build their next facility featuring a 633,000 square-foot warehouse and supporting facilities.  The scale of the site improvements occupied most of the available space leaving little room for an above-ground stormwater management system.

With so little space for surface ponds, the stormwater design required an additional 448,513 cubic feet of underground storage to satisfy the project's design objectives. The project engineer had worked with Contech on other projects, so he turned to Contech for help designing an efficient and cost-effective underground solution.

With groundwater conditions varying across the site, the design needed a system with design versatility to achieve the storage requirements within the site geometry and constraints. Our Variable Diameter design strategy allows Contech's perforated pipe solution to adapt to the site and optimize storage efficiency more efficiently than systems available through other suppliers. Under the subject conditions, the design specified two 48" diameter systems where the groundwater was deeper and two 40" diameter systems where it was not as deep. This approach allows the engineer to optimize storage efficiency and get the most out of their design.

Given the fast-paced nature of this project, Contech worked closely with Dewitt Excavation to expedite the fabrication and delivery of the systems. Deliveries were made shortly after submittal approval, and Contech's fabrication team in Pinellas Park, Florida, stayed in step with Dewitt's installers field production. Dewitt had experience installing Contech's perforated pipe solution. With this experience, they were able to install about 1,000 LF of pipe per day, helping to keep them ahead of schedule.

Technical Description:

  • 13,762’ of 40” Perforated Aluminized Steel Type 2
  • 17,696’ of 48” Perforated Aluminized Steel Type 2

800-338-1122 | www.ContechES.com
Project #: 666,062

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