Managing Stormwater at a WAWA Gas Station in Charlottesville, VA

With little to no permeable surfaces at a new Wawa Gas Station, engineers work with Ferguson Waterworks to install an underground stormwater storage tank.

Wawa gas station with impervious surfaces uses R-Tank for storing stormwater underground.
Kimley-Horn Engineering
Charlottesville, Virignia

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When new gas stations are built, it’s not uncommon to lack permeable space for stormwater drainage or storage. The new Wawa gas station in Charlottesville, Virginia was no exception. In fact, the site was almost 100% built and unfortunately, there was no room for Kimley Horn’s engineers to utilize an above-ground retention pond. Alternatively, they selected the R-Tank for underground stormwater storage. This innovative stormwater solution alleviated the impervious surface area, allowing this site to meet the stormwater requirements. With the assistance of Ferguson Waterworks, the team assembled R-Tank HD units on site. Now, the gas station has 7000 ft3 of storage below the travel lane.


The R-Tank underground stormwater storage vessel is a great solution for sites with limited space. Ferguson specialists worked with a design engineer from Kimley Horn, using our R-Tank Tool to assist with the design. Then, we also helped the site contractor assemble and install the R-Tank units.

Product Advantages

  • Space efficient
  • Modular flexibility
  • Ease of installation
  • Small footprint
  • High capacity and high strength
  • Intuitive R-Tank Design Tool

For another project that benefited from this innovative underground stormwater storage solution, read about the cost-saving benefits the R-Tank provided a Portand-based Medical Center.

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