Vegetated Swales in Urban Stormwater Modeling and Management

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dc.contributor.authorWhite, Kyle Wallaceen
dc.contributor.committeechairDymond, Randel L.en
dc.contributor.committeememberMoglen, Glenn E.en
dc.contributor.committeememberYoung, Kevin D.en
dc.contributor.departmentCivil Engineeringen
dc.date.accessioned2014-03-14T21:35:57Zen
dc.date.adate2012-05-29en
dc.date.available2014-03-14T21:35:57Zen
dc.date.issued2012-04-30en
dc.date.rdate2012-05-29en
dc.date.sdate2012-05-10en
dc.description.abstractDespite the runoff reduction efficiencies recommended by various regulatory agencies, minimal research exists regarding the ability of vegetated swales to simultaneously convey and reduce runoff. This study assessed the effect water quality swales distributed among upstream sub-watersheds had on watershed hydrology. The study was also posed to determine how certain design parameters can be dimensioned to increase runoff reduction according to the following modeling scenarios: base, base check dam height, minimum check dam height, maximum check dam height, minimum infiltration rate, maximum infiltration rate, minimum Manning's n, maximum Manning's n, minimum longitudinal slope, and maximum longitudinal slope. Peak flow rate, volume, and time to peak for each scenario were compared to the watershed's existing and predevelopment conditions. With respect to the existing condition, peak flow rate and volume decreased for all scenarios, and the time to peak decreased for most scenarios; the counterintuitive nature of this result was attributed to software error. Overall, the sensitivity analysis produced results contrary to the hypotheses in most cases. The cause of this result can likely be attributed to the vegetated swale design and modeling approaches producing an over designed, under constrained, and/or over discretized stormwater management practice.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-05102012-232104en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-05102012-232104/en
dc.identifier.urihttp://hdl.handle.net/10919/42586en
dc.publisherVirginia Techen
dc.relation.haspartWhite_KW_T_2012.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectStormwater Modelingen
dc.subjectLow Impact Developmenten
dc.subjectVegetated Swalesen
dc.titleVegetated Swales in Urban Stormwater Modeling and Managementen
dc.typeThesisen
thesis.degree.disciplineCivil Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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