Road Ecology Center
Cost to performance analysis of selected stormwater quality best management practices
- Author(s): Landphair, Harlow C.
- et al.
By reviewing current literature and practice, this project examined alternatives for permanent, water quality improvement structures. The study also recognized that there are significant differences in methods and types of structures appropriate to rural, suburban, and urban conditions. Parallel to this effort, existing water quality improvement structures were identified and monitored in an effort to establish comparative baseline performance data. To develop the performance to cost analysis, a prototype approach was adopted. A total of nine different types of stormwater quality best management practices (BMPs) were evaluated and performance to cost comparisons were made based on contributing watershed size. The findings argue strongly for developing large regional type structures, which implies the need for early planning for the acquisition of sufficient right-of-way to accommodate water quality features.