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iDEA: DREXEL LIBRARIES E-REPOSITORY AND ARCHIVES

iDEA: DREXEL LIBRARIES E-REPOSITORY AND ARCHIVES

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Modeling the Design and Performance of Stormwater Tree Trenches

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Title
Modeling the Design and Performance of Stormwater Tree Trenches
Author(s)
Krechmer, Tyler S.
Advisor(s)
Olson, Mira S.
Keywords
Environmental engineering; Urban runoff -- Management -- Pennsylvania -- Philadelphia; Runoff--Pennsylvania -- Philadelphia
Date
2015-06-01
Publisher
Drexel University
Thesis
M.S., Environmental Engineering -- Drexel University, 2015
Abstract
Stormwater tree trenches are an essential green infrastructure stormwater management practice of the Green City, Clean Waters program in Philadelphia. In order to effectively assess the performance of stormwater tree trenches, collaborators at Drexel University and the Philadelphia Water Department developed diagnostic tools in MATLAB intended for use by the green stormwater infrastructure monitoring group at the Philadelphia Water Department. Two stormwater tree trench sites, including the Hewson Street and Reese Street stormwater management practices, were utilized as case studies to evaluate observation well water level data during simulated runoff testing and precipitation events. Given the head within the rock trench of a stormwater tree trench, Green-Ampt infiltration with a head term was considered to model cumulative infiltration depth and infiltration rate. With future monitoring of stormwater tree trenches, inlet efficiency, clogging and suspended solids concerns can be evaluated over time. With these diagnostic tools the Philadelphia Water Department will have the capability to consider constraints of stormwater tree trench design and performance, thus progressing the Green City, Clean Waters program and enhancing the quality of life in Philadelphia.
URI
http://hdl.handle.net/1860/idea:6526
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