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DEMONSTRATION PROJECT FOR CHANNEL RESTORATION IN URBANIZING STREAMS OF THE OZARK PLATEAUS, GREENE COUNTY MISSOURI
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: Paper number 701P0904, . (doi: 10.13031/2013.17436)
Authors: Timothy W. Smith, Kevin R. Barnes and Marc R. Owen
Channel instability in Ozark streams due to urbanization has impacted streams in the Springfield, Missouri metropolitan area resulting in flooding, bed scour, bank instability and increased sediment yields. Presently, the geomorphic processes related to urban channel erosion are poorly understood and no tested channel restoration guidelines are yet available in the Ozarks. This poster describes recent efforts by Greene County to identify management options for restoring and stabilizing urban streams in the region. Preliminary results involve a nonpoint source pollution 319 grant aimed at developing a demonstration site along Ward Branch for channel restoration measures. The Ward Branch of the James River is located on the south side of Springfield. The study reach is located in an area where Greene County purchased and removed homes affected by flooding from recent developments. The objectives of the project are: (1) Develop, install and monitor alternative stream stabilization techniques. (2) Evaluate stream stabilization techniques based on cost, availability of materials and effectiveness. (3) Educate area residents, developers, contractors and community leaders on the importance of stream channel erosion in the transport of nutrients linked to water quality in the James River Basin. Initial channel surveys show the 325 meter reach is deeper, has longer riffle-pool spacing and lower sinuosity relative to other urban streams in the area. This project is a collaborative effort between the City of Springfield, Southwest Missouri State University, the Watershed Committee of the Ozarks, Missouri Department of Conservation and Greene County that will facilitate a watershed approach to urban stream management.(Download PDF) (Export to EndNotes)