Freese and Nichols provided master planning and design services to add more open space to the surrounding neighborhood, alleviate localized flooding, increase stormwater capacity, separate combined sewers in the vicinity, improve water quality and provide educational opportunities. Located in the Historic Vine City area near downtown Atlanta, the design is a dynamic 16-acre neighborhood park providing much-needed public space and flood relief to Atlanta’s westside neighborhoods. The design includes green infrastructure that collects stormwater and reduces flooding that has plagued the area during rain events. The park was designed through a collaborative effort between the City of Atlanta, the Trust for Public Land, the National Monuments Foundation, and the Vine City community.
Key design components include: Alleviating neighborhood flooding and combined sewer overflows using innovative stormwater practices integrated into the surrounding park setting. Providing sustainable venues for a multitude of recreational activities and spaces for community gathering. Honoring the neighborhood’s legacy with the construction of monuments and statues of historic leaders. Designing 28-acre-foot stormwater detention facility integrated with green infrastructure. Modeling the project in detail using hydrologic, hydraulic and water quality modeling software (Innovyze ICM and EPA-SWMM). Capturing an average of 37 million gallons of runoff per year in the proposed pond from 150 acres of drainage area. Detaining stormwater runoff within the pond, up to the 100-year storm event, and slowly releasing it back into the combined sewer system to prevent flooding in the surrounding areas and to reduce the burden on the City’s downstream infrastructure. Integrating an innovative overflow weir with the park design and modeling the weir using 3D computational fluid dynamics software to derive a proper coefficient. Integrating green infrastructure into the park setting to meet the City’s water quality treatment goals. This includes stormwater planters, trash racks, bioretention ponds, and a 5.7-acre wet pond with a normal pool area of 1 acre and an underground cistern for the makeup water. Removing approximately 2.5 million gallons per year of runoff collected from the stormwater system through evapotranspiration from the proposed green infrastructure practices.