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Modeling Exfiltrating Storm Sewers Using SWMM

McCutcheon, Matthew D.

Abstract Details

2010, MS, University of Cincinnati, Engineering and Applied Science: Environmental Engineering.

Controlled partial exfiltration of storm water from sewers may provide a viable option for managing urban runoff. In this study, storm sewer exfiltration is simulated using the United States Environmental Protection Agency (USEPA) Storm Water Management Model (SWMM) code. Exfiltration is represented in SWMM as a distributed sink term in the St. Venant equations for one-dimensional, gradually varied, unsteady flow. The modified SWMM code is used in a suite of simulations to compare the performance of storm sewer systems with and without exfiltration. This study addresses several specific questions. Can storm sewer exfiltration lead to significant reductions in peak flow and runoff volume? Are exfiltrating sewer systems particularly vulnerable to climate change impacts? Are exfiltrating sewers cost-effective?

Simulations were run for precipitation design events on exfiltrating and non-exfiltrating sewer systems under current and projected climate conditions for Cincinnati, Ohio and Tucson, Arizona. Results indicate peak flow and volume reductions are achievable under the proper operating conditions for current and future hydrologic scenarios. A comparison of life-cycle cost analyses for non-perforated and perforated storm sewer systems reveals potential savings associated with selecting the perforated system over a non-perforated system. A t-Test was used to determine the statistical significance of the difference between the means of the life-cycle cost analyses.

Steven Buchberger, PhD (Committee Chair)
Dominic Boccelli, PhD (Committee Member)
Jeffrey Yang, PhD (Committee Member)
175 p.

Recommended Citations

Citations

  • McCutcheon, M. D. (2010). Modeling Exfiltrating Storm Sewers Using SWMM [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1282569476

    APA Style (7th edition)

  • McCutcheon, Matthew. Modeling Exfiltrating Storm Sewers Using SWMM. 2010. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1282569476.

    MLA Style (8th edition)

  • McCutcheon, Matthew. "Modeling Exfiltrating Storm Sewers Using SWMM." Master's thesis, University of Cincinnati, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1282569476

    Chicago Manual of Style (17th edition)