Bioretention Hydrologic Performance in an Urban Stormwater Network

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dc.contributor.authorJames, Matthew Bruceen
dc.contributor.committeechairDymond, Randel L.en
dc.contributor.committeememberMoglen, Glenn E.en
dc.contributor.committeememberYoung, Kevin D.en
dc.contributor.departmentCivil Engineeringen
dc.date.accessioned2014-03-14T21:36:08Zen
dc.date.adate2010-05-27en
dc.date.available2014-03-14T21:36:08Zen
dc.date.issued2010-04-30en
dc.date.rdate2010-05-27en
dc.date.sdate2010-05-12en
dc.description.abstractWhile many studies have evaluated the hydrologic effects of bioretention at the site level, few have investigated the role bioretention plays when distributed throughout a watershed. This study aims to assess bioretention's effects on an urbanized watershed using two modeled scenarios: one where runoff from many land uses was routed through the practice, and another in which only runoff from large impervious areas was routed. Peak flows, volumes, and lag times from these models were compared to the watershed's current and predeveloped conditions. Both scenarios provided reductions in peak flows with respect to existing conditions for modeled storm events, sometimes to levels below the predeveloped condition. Neither case was able to reduce volumes to predevelopment levels; the option to treat impervious areas had a negligible effect on runoff volume. Both cases were able to extend lag times from the existing development condition. Based on these results, bioretention appears to have the capability to improve watershed hydrologic characteristics. Furthermore, only treating impervious areas could be a viable alternative when funds or space are limiting factors.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-05122010-141830en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-05122010-141830/en
dc.identifier.urihttp://hdl.handle.net/10919/42639en
dc.publisherVirginia Techen
dc.relation.haspartJames_MB_T_2010.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectStormwater Managementen
dc.subjectLow Impact Developmenten
dc.subjectHydrologyen
dc.titleBioretention Hydrologic Performance in an Urban Stormwater Networken
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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