Published, Version of Record (VoR)CC BY V4.0, Open
Abstract
Environmental Sciences Environmental Sciences & Ecology Life Sciences & Biomedicine Physical Sciences Science & Technology Water Resources
Green infrastructure (GI) is viewed as a sustainable approach to stormwater management that is being rapidly implemented, outpacing the ability of researchers to compare the effectiveness of alternate design configurations. This paper investigated inflow data collected at four GI inlets. The performance of these four GI inlets, all of which were engineered with the same inlet lengths and shapes, was evaluated through field monitoring. A forensic interpretation of the observed inlet performance was conducted using conclusions regarding the role of inlet clogging and inflow rate as described in the previously published work. The mean inlet efficiency (meanPE), which represents the percentage of tributary area runoff that enters the inlet was 65% for the Nashville inlet, while at Happyland the NW inlet averaged 30%, the SW inlet 25%, and the SE inlet 10%, considering all recorded events during the monitoring periods. The analysis suggests that inlet clogging was the main reason for lower inlet efficiency at the SW and NW inlets, while for the SE inlet, performance was compromised by a reverse cross slope of the street. Spatial variability of rainfall, measurement uncertainty, uncertain tributary catchment area, and inlet depression characteristics are also correlated with inlet PE. The research suggests that placement of monitoring sensors should consider low flow conditions and a strategy to measure them. Additional research on the role of various maintenance protocols in inlet hydraulics is recommended.
Forensic Investigation of Four Monitored Green Infrastructure Inlets
Creators
Leena J. Shevade - Lafayette Coll, Civil & Environm Engn Dept, Easton, PA 18042 USA
Franco A. Montalto - Drexel Univ, Coll Engn, Civil Architectural & Environm Engn Dept, Philadelphia, PA 19104 USA
Publication Details
Water (Basel), v 13(13), p1787
Publisher
Mdpi
Number of pages
27
Grant note
CMMI 1325676 / National Science Foundation's Coastal SEES program
34724 / NYS Attorney General under the Bronx River Watershed Initiative
CBET: 1150994 / National Science Foundation through CAREER: Integrated Assessments of the Impacts of Decentralized Land Use and Water Management
NA15OAR4310147 / National Oceanic and Atmospheric Association (NOAA); National Oceanic Atmospheric Admin (NOAA) - USA
Resource Type
Journal article
Language
English
Academic Unit
Civil, Architectural, and Environmental Engineering; Center for Public Policy
Web of Science ID
WOS:000671143800001
Scopus ID
2-s2.0-85109374309
Other Identifier
991019168118504721
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