Full Citation
Title: An integrated approach to place Green Infrastructure strategies in marginalized communities and evaluate stormwater mitigation
Citation Type: Journal Article
Publication Year: 2018
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Abstract: Increasing urbanization augments impervious surface area, which results in increased run off volumes and peak flows. Green Infrastructure (GI) approaches are a decentralized alternative for sustainable urban stormwater and provide an array of ecosystem services and foster community building by enhanc- ing neighborhood aesthetics, increasing property value, and providing shared green spaces. While pro- jects involving sustainability concepts and environmental design are favored in privileged communities, marginalized communities have historically been located in areas that suffer from envi- ronmental degradation. Underprivileged communities typically do not receive as many social and envi- ronmental services as advantaged communities. This research explores GI-based management strategies that are evaluated at the watershed scale to improve hydrological performance by mitigating storm water run off volumes and peak flows. GI deployment strategies are developed to address environmental justice issues by prioritizing placement in communities that are underprivileged and locations with high outreach potential. A hydrologic/hydraulic stormwater model is developed using the Storm Water Management Model (SWMM 5.1) to simulate the impacts of alternative management strategies. Management scenarios include the implementation of rain water harvesting in private households, the decentralized implementation of bioretention cells in private households, the centralized implementa- tion of bioretention cells in municipally owned vacant land, and combinations of those strategies. Realities of implementing GI on private and public lands are taken into account to simulate various levels of coverage and routing for bioretention cell scenarios. The effects of these strategies are measured by the volumetric reduction of run off and reduction in peak flow; social benefits are not evaluated. This approach is applied in an underprivileged community within the Walnut Creek Watershed in Raleigh, North Carolina.
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Authors: Garcia-Cuerva, Laura; Zechman Berglund, Emily; Rivers III, Louie
Periodical (Full): Journal of Hydrology
Issue:
Volume: 559
Pages: 648-660
Data Collections: IPUMS NHGIS
Topics: Other
Countries: United States