Watershed-scale Evaluation of a System of Storm Water Detention Basins.

The effectiveness of an existing system of storm water detention basins operating at the watershed scale is evaluated. Data utilized in the study were collected from Valley Creek watershed in Chester County, Pa., which has undergone rapid development from the westward spread of suburban Philadelphia. Since the late 1970s, more than 100 storm water detention basins have been constructed in this 62 km2 s24 mi2d watershed, each designed on a site-by-site basis. The design objective of these detention basins is to limit a site’s postconstruction peak flow rate to or below its predevelopment level for 2- through 100-year storms. To evaluate the watershed-wide effectiveness of the network of detention basins, all basins were surveyed and included in a hydrologic model of the watershed. The U.S. Army Corps of Engineers Hydrologic Engineering Center’s Hydrologic Modeling System ~HEC-HMS! model was calibrated by using measured rainfall and observed streamflow from a U.S. Geological Survey ~USGS! stream gauge. Results from modeling six measured storm events show that the detention basins reduce watershed-wide peak storm flows by an average of only 0.3%, and can potentially increase peak flow rates. The model was also used to investigate the effects of alternate on-site stormwater management strategies, including outlet structure modification and runoff volume-based management. Results indicate that a runoff volume-based plan is the most effective means of attenuating watershed-wide peak flow rates.

Main Author: Emerson, Clay H.
Other Authors: Welty, Claire., Traver, Robert G.
Language: English
Published: 2005
Online Access: http://ezproxy.villanova.edu/login?url=https://digital.library.villanova.edu/Item/vudl:179069
PID vudl:179069
id vudl:179069
modeltype_str_mv vudl-system:CoreModel
vudl-system:CollectionModel
vudl-system:ResourceCollection
datastream_str_mv DC
PARENT-QUERY
PARENT-LIST-RAW
PARENT-LIST
MEMBER-QUERY
MEMBER-LIST-RAW
LEGACY-METS
LICENSE
AGENTS
PROCESS-MD
THUMBNAIL
STRUCTMAP
RELS-EXT
hierarchytype
sequence_vudl_178960_str 0000000037
has_order_str no
hierarchy_top_id vudl:171664
hierarchy_top_title Villanova Digital Collection
hierarchy_parent_id vudl:178960
hierarchy_parent_title Traver Robert
hierarchy_sequence 0000000037
hierarchy_first_parent_id_str vudl:179069
hierarchy_sequence_sort_str 0000000037
hierarchy_all_parents_str_mv vudl:171664
vudl:172968
vudl:178960
first_indexed 2014-01-11T22:58:56Z
last_indexed 2014-01-11T22:58:56Z
recordtype vudl
fullrecord <root> <url> http://digital.library.villanova.edu/files/vudl:179069/DC </url> <thumbnail> http://digital.library.villanova.edu/files/vudl:179069/THUMBNAIL </thumbnail> </root>
spelling
institution Villanova University
collection Digital Library
language English
dc_source_str_mv Journal of Hydrologic Engineering 10(3),May 2005, 237-242.
author Emerson, Clay H.
author_facet_str_mv Emerson, Clay H.
Welty, Claire.
Traver, Robert G.
author_or_contributor_facet_str_mv Emerson, Clay H.
Welty, Claire.
Traver, Robert G.
author_s Emerson, Clay H.
spellingShingle Emerson, Clay H.
Watershed-scale Evaluation of a System of Storm Water Detention Basins.
author-letter Emerson, Clay H.
author_sort_str Emerson, Clay H.
author2 Welty, Claire.
Traver, Robert G.
author2Str Welty, Claire.
Traver, Robert G.
dc_title_str Watershed-scale Evaluation of a System of Storm Water Detention Basins.
title Watershed-scale Evaluation of a System of Storm Water Detention Basins.
title_short Watershed-scale Evaluation of a System of Storm Water Detention Basins.
title_full Watershed-scale Evaluation of a System of Storm Water Detention Basins.
title_fullStr Watershed-scale Evaluation of a System of Storm Water Detention Basins.
title_full_unstemmed Watershed-scale Evaluation of a System of Storm Water Detention Basins.
collection_title_sort_str watershed-scale evaluation of a system of storm water detention basins.
title_sort watershed-scale evaluation of a system of storm water detention basins.
description The effectiveness of an existing system of storm water detention basins operating at the watershed scale is evaluated. Data utilized in the study were collected from Valley Creek watershed in Chester County, Pa., which has undergone rapid development from the westward spread of suburban Philadelphia. Since the late 1970s, more than 100 storm water detention basins have been constructed in this 62 km2 s24 mi2d watershed, each designed on a site-by-site basis. The design objective of these detention basins is to limit a site’s postconstruction peak flow rate to or below its predevelopment level for 2- through 100-year storms. To evaluate the watershed-wide effectiveness of the network of detention basins, all basins were surveyed and included in a hydrologic model of the watershed. The U.S. Army Corps of Engineers Hydrologic Engineering Center’s Hydrologic Modeling System ~HEC-HMS! model was calibrated by using measured rainfall and observed streamflow from a U.S. Geological Survey ~USGS! stream gauge. Results from modeling six measured storm events show that the detention basins reduce watershed-wide peak storm flows by an average of only 0.3%, and can potentially increase peak flow rates. The model was also used to investigate the effects of alternate on-site stormwater management strategies, including outlet structure modification and runoff volume-based management. Results indicate that a runoff volume-based plan is the most effective means of attenuating watershed-wide peak flow rates.
publishDate 2005
normalized_sort_date 2005-01-01T00:00:00Z
dc_date_str 2005
license_str protected
REPOSITORYNAME FgsRepos
REPOSBASEURL http://hades.library.villanova.edu:8088/fedora
fgs.state Active
fgs.label Watershed-scale Evaluation of a System of Storm Water Detention Basins.
fgs.ownerId diglibEditor
fgs.createdDate 2013-01-22T12:25:40.290Z
fgs.lastModifiedDate 2013-12-05T17:08:28.500Z
dc.title Watershed-scale Evaluation of a System of Storm Water Detention Basins.
dc.creator Emerson, Clay H.
Welty, Claire.
Traver, Robert G.
dc.description The effectiveness of an existing system of storm water detention basins operating at the watershed scale is evaluated. Data utilized in the study were collected from Valley Creek watershed in Chester County, Pa., which has undergone rapid development from the westward spread of suburban Philadelphia. Since the late 1970s, more than 100 storm water detention basins have been constructed in this 62 km2 s24 mi2d watershed, each designed on a site-by-site basis. The design objective of these detention basins is to limit a site’s postconstruction peak flow rate to or below its predevelopment level for 2- through 100-year storms. To evaluate the watershed-wide effectiveness of the network of detention basins, all basins were surveyed and included in a hydrologic model of the watershed. The U.S. Army Corps of Engineers Hydrologic Engineering Center’s Hydrologic Modeling System ~HEC-HMS! model was calibrated by using measured rainfall and observed streamflow from a U.S. Geological Survey ~USGS! stream gauge. Results from modeling six measured storm events show that the detention basins reduce watershed-wide peak storm flows by an average of only 0.3%, and can potentially increase peak flow rates. The model was also used to investigate the effects of alternate on-site stormwater management strategies, including outlet structure modification and runoff volume-based management. Results indicate that a runoff volume-based plan is the most effective means of attenuating watershed-wide peak flow rates.
dc.date 2005
dc.identifier vudl:179069
dc.source Journal of Hydrologic Engineering 10(3),May 2005, 237-242.
dc.language en
license.mdRef http://digital.library.villanova.edu/copyright.html
agent.name Falvey Memorial Library, Villanova University
KHL
has_thumbnail true
THUMBNAIL_contentDigest_type MD5
THUMBNAIL_contentDigest_digest 203c69e18f4f46c81e9892448d2c07cd
THUMBNAIL_contentLocation_type INTERNAL_ID
THUMBNAIL_contentLocation_ref http://hades-vm.library.villanova.edu:8088/fedora/get/vudl:179069/THUMBNAIL/2013-01-22T12:25:42.092Z
relsext.hasModel info:fedora/vudl-system:CoreModel
info:fedora/vudl-system:CollectionModel
info:fedora/vudl-system:ResourceCollection
relsext.itemID oai:digital.library.villanova.edu:vudl:179069
relsext.isMemberOf info:fedora/vudl:178960
relsext.hasLegacyURL http://digital.library.villanova.edu/Villanova%20Digital%20Collection/Faculty%20Fulltext/Traver%20Robert/TraverRobert-1aab6217-f8e0-4ab2-84ef-d646c5f59694.xml
relsext.sortOn title
relsext.sequence vudl:178960#37
_version_ 1644303541294071808
score 13.664123
subpages