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West Park Equalization Facility

Location Information: Nashville, Tennessee United States

GIS Data:

Project Type(s): Public Parks and Recreation, Drinking Water and Wastewater

Project Owner/Agency: Metro Nashville Water Services Department, Metro Nashville Parks and Recreation Department

Budget: Under $500,000

Envision Rating: Not Rated


Nashville MWS, charged with eliminating unpermitted discharges from its wastewater collection system, implemented a strategy that included wastewater storage throughout the system during periods of wet weather. The project team then partnered with MPR to utilize park property within the nearby West Park, with existing recreational facilities that were in need of improvements and were not meeting the needs of a rapidly growing surrounding community. The project's inter-agency collaboration provides two different community benefits: valuable park improvements and cleaner rivers and streams.

Triple Bottom Line

Economic: By relocating the wastewater collection system in the park, cost savings were generated and applied to much needed park upgrades and new recreational facilities.

Social: The project provides new public space, which consists of a walking trail, a new and innovative playground, a new public use pavilion and a "pocket" urban forest. The project will improve park and greenway linkages, provide green space and increased recreational activities.

Environmental: The design eliminated the need for multiple tanks and additional piping by utilizing nearby park property. By reducing materials used and the addition of trees, the design represents more than a 40% reduction in carbon emissions over the life of the project. The team prepared for long-term adaptability to ensure that project elements are generally resilient. The project also enhances surface water functions by improving the hydrologic connection through increased infiltration and riparian buffer preservation, as well as increasing biodiversity.

Innovative Aspects

This is the first joint wastewater and park project in the U.S. to receive an ISI Envision rating award and the tenth project to receive recognition. The project demonstrates how sustainable planning and design attributes can be incorporated in a pragmatic manner for the benefit of the community, the utility, and the environment.

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