http://hdl.handle.net/1957/31 Collection documenting collaborative growth and work of the Water and Watersheds Initiative at OSU. Search the Channel search http://ir.library.oregonstate.edu/jspui/simple-search http://hdl.handle.net/1957/12683 Title: Sturgeon Lake restoration : diagnostic/feasilbility study<br/><br/>Authors: Oregon State University. Water Resource Research Institute http://hdl.handle.net/1957/5965 Title: Summary report to assist development of ecosystem flow recommendations for the Coast Fork and Middle Fork of the Willamette River, Oregon<br/><br/>Authors: Gregory, Stan; Ashkenas, Linda; Nygaard, Chris<br/><br/>Abstract: IntroductionThe Willamette River Flow ProjectThe Nature Conservancy (TNC) and the U. S. Army Corps of Engineers (USACE) arecollaborating on a project to determine environmental flow requirements for theWillamette River and its tributaries and to design and test alternative flow releases fromthe dams that can meet these requirements. The project is part of the SustainableRivers Project (SRP), a national effort by TNC and USACE to investigate opportunitiesto change Corps Dam operations (“reoperate”) to achieve more ecologically sustainableflows, while maintaining or enhancing project benefits. Through the SRP, TNC andUSACE have developed and tested a process for identifying and refining environmentalflow objectives (Richter et. al. 2006). The process utilizes a series of steps to defineenvironmental flow requirements, implement changes in operation of dams to meetthose flow objectives, monitor and model the effects of those changes on both the riverecosystem and the operation of the dams, and refine over time.The Willamette River Flow Project is being conducted in conjunction with the USACEWillamette Floodplain Restoration Feasibility Study. This feasibility study is designed toidentify opportunities to restore natural floodplain function in the Willamette River basinto provide ecosystem restoration, natural flood storage, and other benefits. The initialstudy phase has focused on the Coast and Middle Forks of the Willamette River. Thesesubbasins contain 6 of the 13 dams in the Willamette system; their operation hasimplications for the operation of the other dams in the system. To date, the FloodplainRestoration Study has focused on two important aspects of the aquatic ecosystem: 1)identifying habitat, flow and water quality requirements for a variety of aquatic andfloodplain species; and 2) describing and evaluating the current channel and floodplainmorphological characteristics, and their changes from historic condition. Partners in thefeasibility study include the Willamette Partnership, the Willamette Middle and CoastFork Watershed councils, the Oregon Department of Fish and Wildlife, and The NatureConservancy. There is also an inter-disciplinary expert and stakeholder group ofapproximately 20 federal, state and local entities plus private landowners that informsthe process.The Willamette River Flow Project will build upon the Floodplain Restoration study bydeveloping environmental flow requirements for the reaches downstream of the Corpsdams and linking those flows to opportunities for stream channel and floodplainrestoration, and to improvement in operation of the dams. Given the existing floodplainrestoration study, the initial SRP efforts will use the Coast and Middle Forks and themainstem Willamette immediately downstream of these tributaries as a pilot study thatcan be replicated in the rest of the Willamette system. River flows from both subbasinshave been greatly affected by operation of the dams: 56% of the drainage area of theCoast Fork and 87% of the Middle Fork drain into USACE reservoirs. General effects ofthe reservoirs include reduced peak flows, lower spring flows, increased summer lowflows, and infrequent bankfull and out-of-bank flows. The Willamette Flow Projectpartners anticipate the study will be expanded in the future to encompass the othermajor tributaries controlled by USACE dams.<br/><br/>Description: Prepared for Sustainable Rivers Project of The Nature Conservancy and theU.S. Army Corps of Engineers. http://hdl.handle.net/1957/854 Title: Farm effects on runoff quality in Oregon's Tualatin River Basin. Part I, Farm survey, Washington County, Oregon<br/><br/>Authors: Moberg, Dean P.; Rambo, Neil L.; Washington County Soil and Water Conservation District (Or.) http://hdl.handle.net/1957/12096 Title: H2O news ; Vol. 6 No. 2 (October 1996)<br/><br/>Authors: Oregon State University. Water Resources Research Institute