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Estimating Regionalized Planning Costs of Green Infrastructure and Low-Impact Development Stormwater Management Practices: Updates to the US Environmental Protection Agency’s National Stormwater Calculator
Citation:
Bernagros, J., D. Pankani, S. Struck, AND M. Deerhake. Estimating Regionalized Planning Costs of Green Infrastructure and Low-Impact Development Stormwater Management Practices: Updates to the US Environmental Protection Agency’s National Stormwater Calculator. Journal of Sustainable Water in the Built Environment. American Society of Civil Engineers (ASCE), New York, NY, 7(2):04020021-1, (2021). https://doi.org/10.1061/JSWBAY.0000934
Impact/Purpose:
This journal manuscript describes the development of a cost estimation module for the U.S. Environmental Protection Agency's National Stormwater Calculator (NSWC). Details are provided about the development methodology, cost data, limitations, tool applications, and lessons learned in developing the cost estimation module. Readers will gain a greater understanding of how the NSWC estimates planning level construction/capital and maintenance costs of green infrastructure and low impact development stormwater management controls.
Description:
Estimating the costs of green infrastructure (GI) and low impact development (LID) stormwater management controls is an important issue for many municipalities and water utilities in the United States of America. The National Stormwater Calculator (NSWC) is a site-level scale planning tool which recently had a cost estimation methodology added, enabling users to estimate region-specific capital and maintenance costs of commonly used GI controls. The paper discusses development of the cost methodology, regionalization of costs, tool applications and limitations. The paper concludes with lessons learned from tool development and how they may inform new innovative cost approaches. The NSWC cost estimation methodology provides users with a simple and tailored approach to understand planning level costs associated with implementation and maintenance of GI infrastructure projects. It also presents new approaches to manage tool longevity and incorporates a regional application both of which can enhance future innovative cost estimation tools.
URLs/Downloads:
DOI: Estimating Regionalized Planning Costs of Green Infrastructure and Low-Impact Development Stormwater Management Practices: Updates to the US Environmental Protection Agency’s National Stormwater Calculator
Free access through PubMed Central