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Assessing the suitability for urban stream rehabilitation in Fort Collins based on watershed, hydrologic, and benthic macroinvertebrate indicators

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dc.contributor.authorRoznowski, Steven K., author
dc.contributor.authorRoesner, Larry A., advisor
dc.contributor.authorKondratieff, B. C. (Boris C.), committee member
dc.contributor.authorRamírez, Jorge A., committee member
dc.coverage.spatialFort Collins (Colo.)
dc.date.accessioned2007-01-03T04:53:05Z
dc.date.available2007-01-03T04:53:05Z
dc.date.issued2010
dc.descriptionDepartment Head: Luis A. Garcia.
dc.description.abstractDevelopment in urban areas generally increases the proportion of a watershed that is covered by impervious surfaces. This added impervious area causes both the quantity and peak rate of stormwater runoff to increase thereby altering the natural flow regime in receiving streams and causing changes in sediment transport. Such changes in hydrology and sediment load can adversely affect benthic macroinvertebrates residing in channel beds. This study assesses the degree to which watershed development has impacted urban streams in Fort Collins, Colorado and recommends areas for rehabilitation that are most likely to benefit from watershed or in-stream modification. Fort Collins has recently begun implementing best management practices (BMPs) to help control stormwater runoff from developed areas. Locations and coverage of BMPs along with other measures of urbanization are compared to available stream flow and shear stress data which are in-turn related to benthic macroinvertebrate indicators. By drawing comparisons between these parameters, the effectiveness of stormwater BMPs can be assessed. This allows for recommendations to be made which direct stream rehabilitation efforts in the City. The impacts of irrigation flows in the Fort Collins area were found to limit the effectiveness of BMPs. This irrigation influence made trends difficult to establish between benthic macroinvertebrate indicators and watershed characteristics. However, as evidenced by recent improvements in macroinvertebrate indicators at one location, the combination of BMPs and in-stream improvement can create habitat suitable for rich macroinvertebrate communities provided irrigation flows are controlled. Therefore, the locations with large portions of the watershed protected by water quality BMPs and relatively little irrigation impact are targeted as prime locations for in-stream rehabilitation. For areas with low levels of water quality control, it is suggested that water quality BMPs be added before in-stream rehabilitation is undertaken.
dc.format.mediummasters theses
dc.identifier2010_Fall_Roznowski_Steven.pdf
dc.identifierETDF2010300039CVEE
dc.identifier.urihttp://hdl.handle.net/10217/45181
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relationwwdl
dc.relation.ispartof2000-2019
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subject.lcshStream restoration -- Fort Collins -- Colorado
dc.subject.lcshRestoration ecology -- Fort Collins -- Colorado
dc.titleAssessing the suitability for urban stream rehabilitation in Fort Collins based on watershed, hydrologic, and benthic macroinvertebrate indicators
dc.typeText
dcterms.rights.dplaThis Item is protected by copyright and/or related rights (https://rightsstatements.org/vocab/InC/1.0/). You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
thesis.degree.disciplineCivil and Environmental Engineering
thesis.degree.grantorColorado State University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science (M.S.)

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