Center for Watershed Science
 
Illinois State Water Survey
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Rivers & Streams - Projects
See projects below for contact information

Floods
Flood Protection and Management for the Lower IL River System: Phase III
Floodplain Map Modernization Program
Modeling
Fox River Watershed Investigation, Stratton Dam to the Illinois River
Fox River Watershed Investigation, Stratton Dam to the Illinois River - Phase II
Illinois River Watershed Hydrologic Model Development
Illinois Streamflow Assessment Model
Monitoring
Effective Discharges of Illinois Streams
Initial Stream Stability Assessment of a Segment of Hickory Creek
Low Frequency Estimation for Sugar Creek
National Monitoring of Instream Habitat and Urban Fisheries in the Waukegan River
Update of the 7-Day 10-Year Low Flow Maps for Illinois
Sedimentation
Illinois River Sediment Budget Update
Investigation of Metal and Organic Contaminant Distributions and Sedimentation Rates in Backwater Lakes along the Illinois River
Rehabilitation/Restoration
Construct Stream Stabilization Structures on Targeted Sites
Fox River Watershed Investigation, Stratton Dam to the Illinois River
Fox River Watershed Investigation, Stratton Dam to the Illinois River - Phase II
Illinois River Basin Restoration Project; Watershed & Pool Assessments
Installation of Newbury Riffles in the Cache River to Stabilize the Streambed and Enhance Habitat

Construct Stream Stabilization Structures on Targeted Site
Principal Investigator: Bill White
Field and Data Processing: L. Duong, J. Rodsater and J. Beardsley
Funded by Illinois Department of Natural Resources until 6/30/2003
ABSTRACT: The goal of this project is to design and construct stream channel stabilization projects for the Illinois Department of Natural Resources (IDNR). Stream channel instability has been a major source of sediment and loss of property value around the state. Loss of IDNR state property value from erosion and sedimentation results in large-scale capital projects to mitigate damages. A major component of such efforts is the construction phase of stream stabilization projects based on watershed scale analysis of stream instability. The Illinois State Water Survey (ISWS), in cooperation with IDNR, will identify locations of stream instability, design appropriate channel stabilization projects, and construct the projects. The ISWS also will collect data for postconstruction evaluation of channel stabilization projects such as vanes and Newbury weirs.
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Effective Discharges of Illinois Streams
Principal Investigator: V. Knapp
Funded by Illinois Environmental Protection Agency until 11/30/2002
ABSTRACT: The hydrologic regime of a natural river is usually highly complex and encompasses a wide range of discharges. Magnitudes and frequencies at which various discharges occur play a key role in creating channel morphology. The concept of effective discharge proposes that there exists a single discharge that encompasses all morphological impacts that a stream's hydrologic regime has on forming and maintaining stable channel morphology. Stream restoration efforts potentially can use this discharge to help design morphologically stable channels. Suspended sediment data collected at 88 gaging stations within Illinois are being analyzed to determine which stations currently have sufficient suspended sediment data to estimate effective discharges. A procedure is being developed and implemented to compute effective discharge values for the qualifying stream locations. For each gaging location, an estimate is made of the flow frequency at which the effective discharge is equaled or exceeded at each gaging station. Linear regression analyses, based on the effective discharge, channel slope, watershed area, and physiographic unit associated with each gaging station, are then used to examine potential geographic variations in effective discharge within Illinois' streams.
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Flood Protection and Management for the Lower IL River System: Phase III
Principal Investigators: M. Demissie Y. Lian, and V. Knapp
Funded by Illinois Department of Natural Resources, 7/1/2000 - 6/30/2002
ABSTRACT: This project is improving the Windows-based interface developed for the Office of Water Resources Management, Illinois Department of Natural Resources. The required input and output files for the UNET model are organized in the project file. The user can create project files to run the UNET model for historic, design, real-time, and forecasted flood events using UNET geometry and boundary condition files. The post-processing of the model outputs—namely, the Data Storage System (DSS) database—uses data grid tables for easy selection of path strings. The graphing function allows users to plot single and multiple hydrographs and single reach and multiple reach stage profiles. For the Lower Illinois River, the location and magnitude of any levee overtopping are displayed. Utility tools include screen captures, document editing, and DSS file editing. The program also allows direct access to Web sites for current weather, real-time stage and discharge hydrographs, and forecasted stages.
Recent Publication: Lian, Y., M. Demissie, and K. Andrew. 2001. Management Strategies for Flood Protection in the Lower Illinois River, Phase II: Real-time Simulation of Flooding with UNET Model. Illinois State Water Survey Contract Report 2001-16.
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Floodplain Map Modernization Program
Principal Investigator: Sally A. McConkey
GIS & Engineering Support: K. Allan, P. Parmar, M. Barrett, P. Graff, L. Verhelst, and T. Yilmaz
Funded by Illinois Department of Natural Resources - Office of Water Resources from 2004 (ongoing)
ABSTRACT: Today, Illinois' flood hazards are primarily depicted only on paper maps. These paper floodplain maps, used for regulatory and flood insurance purposes as well as identifying sensitive riparian corridors, are called Flood Insurance Rate maps, or FIRMs. Many of Illinois’ FIRMs are outdated, some as much as 20 years, the statewide average age of Illinois FIRM maps is nine years. Congress has allocated significant funding to the Federal Emergency Management Agency (FEMA) to “modernize” floodplain maps nation wide. The new floodplain maps will be fully digital, using the latest geographic information system (GIS) technology. Local involvement is stressed to assure that data incorporated in the maps is up to date and accurate. The Illinois Department of Natural Resources, Office of Water Resources and the State Water Survey prepared a State Business plan outlining the state’s desire to participate in FEMA’s Map Modernization Program. The State Water Survey has contracted to prepare digital maps for five counties in Illinois this funding cycle and over the next 5 years will prepare the floodplain maps for the majority of counties in Illinois. The newly created Map Modernization Program is headed by Sally McConkey, Senior Professional Scientist, Kingsley Allan, GIS Specialist, and Parminder Parmar, Senior Engineer. GIS expertise has been enhanced at the Survey with four new staff members who joined the team December 1, 2004. Melony Barrett, Phil Graff, Lisa Verhelst and Tolga Yilmaz hold degrees specializing in GIS and bring a wealth expertise to the program. The Map Modernization GIS team is expected to double its staff in the upcoming years as more map projects are added. Illinois has taken an aggressive step to fully participate in Map Modernization, recognizing that participation benefits the people of Illinois by providing state expertise for the best mapping product.
Website: http://www.illinoisfloodmaps.org/
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Fox River Watershed Investigation, Stratton Dam to the Illinois River
Principal Investigators: S. McConkey, M. Machesky, and V. Knapp
Funded by Illinois Environmental Protection Agency, 4/1/2002 - 6/30/2003
ABSTRACT: In consultation with the Fox River Study Group, the Illinois State Water Survey (ISWS) has proposed a multi-phase water quality study of the Fox River watershed from Stratton Dam to the Illinois River confluence. The ultimate objective of the full study is to identify significant watershed issues and implement a watershed plan that includes data collection, model development, and monitoring. Research findings will provide guidance for public and private planners and decision-makers. At the request of the Fox River Study Group, the Illinois Environmental Protection Agency has provided funding for ISWS to conduct phase one of the study, which entails compilation and review of relevant information to identify significant water quality concerns, available data, and data gaps. A database of water quality and attendant data will be compiled to serve as a foundation for modeling, analysis, and comparative study. Throughout the project, ISWS staff will meet with the Fox River Study Group and provide project updates for review and comment.
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Fox River Watershed Investigation, Stratton Dam to the Illinois River - Phase II
Principal Investigators: S. McConkey, L. Lin, A. Bartosova, J. Singh
Funded by Fox River Study Group, 11/1/2003 – 4/30/2004
ABSTRACT: In consultation with the Fox River Study Group, the Illinois State Water Survey (ISWS) has proposed a multi-phase water quality study of the Fox River watershed from Stratton Dam to the Illinois River confluence. The ultimate objective of the full study is to identify significant watershed issues and implement a watershed plan that includes data collection, model development, and monitoring. At the request of the Fox River Study Group, the Illinois Environmental Protection Agency provided funding for ISWS to conduct phase one of the study which is now complete. The full report Fox River Watershed Investigation – Stratton Dam to the Illinois River: Water Quality Issues and Data Report to the Fox River Study Group, Inc., is posted at the web site http://ilrdss.sws.uiuc.edu/fox. The Fox River Study Group has continued supporting the project through local funds and the current work includes development of data sets for the water quality models and customizing the model framework to meet study needs.
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Illinois River Basin Restoration Project; Watershed & Pool Assessments
Principal Investigator: B. White
Field and Data Processing: J. Beardsley, L. Duong, and J. Rodsater
Funded by Illinois Department of Natural Resources, 10/1/2003 – 6/30/2004
ABSTRACT: The Illinois River Basin Restoration Project; Watershed & Pool Assessments was funded to conduct assessment of selected pools and tributary watersheds within the Illinois River Basin in support of the Illinois River Ecosystem Restoration Study. Central to these restoration efforts will be a pool and watershed assessment which will help identify the most problematic sites and areas in immediate need for construction/restoration within the basin based upon watershed scale analysis of stream instability. The Illinois State Water Survey has the experience in the State of Illinois at evaluating and restoring stream segments using contemporary restoration analysis and construction/restoration techniques. The scope of the project will be to perform the assessments for selected pools along the Illinois River and for several specific watersheds over the next 5 years to identify project locations for restoration related projects to meet overall goals of the Illinois River Ecosystem Restoration objectives.
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Illinois River Sediment Budget Update
Principal Investigator: N. Bhowmik
Funded by US Army Corps of Engineers until 11/30/2002
ABSTRACT: The Illinois State Water Survey prepared Erosion and Sedimentation in the Illinois River Basin: Final Report (Contract Report 519) in 1992. An approximate sediment budget was developed based on data collected up to 1990 for that report. This project will include all sediment data collected since 1990 and update the sediment budget for the Illinois River basin. Determination of a sediment budget includes calculating and estimating sediment yields from all tributary streams that drain into the Illinois River and then comparing yields with sediment outflow from the Illinois River to the Mississippi River.
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Illinois River Watershed Hydrologic Model Development
Principal Investigator: M. Demissie
Funded by US Army Corps of Engineers until 9/30/2002
ABSTRACT: The Illinois State Water Survey has initiated the development of hydrologic model for the Illinois River basin as a component of the Illinois Rivers Decision Support System developed for organizing and disseminating information in support of the Illinois River Ecosystem Restoration project and the Illinois Rivers 2020 program. The model will be developed within the U.S. Environmental Protection Agency's BASINS framework. The initial phase involves delineating the Illinois River watershed into sub-basins and developing a basinwide HSPF model. The model will be calibrated for two sub-basins to guide parameter selection for entire basins. A preliminary hydrologic model for the entire basin will be improved continuously by calibrating for more sub-basins.
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Illinois Streamflow Assessment Model
Principal Investigator: V. Knapp
Funded by the Illinois Department of Natural Resources, 6/30/1995 - 6/30/2004
ABSTRACT: The Illinois Streamflow Assessment Model (ILSAM) produces statistical estimates of flow quantity in Illinois streams, which are basic for various water resource uses, including: water quality analyses and regulations; assessing drought, instream flows, and availability for water supply; and stream ecosystem and restoration assessment. The ILSAM flow estimates are representative of long-term climatic conditions, with base periods covering the past 50 years or more, but also account for recent man-made modifications to the flow amount such as have been caused by reservoirs, water-supply withdrawals, diversions, and discharges from wastewater treatment plants. The hydrologic analysis for ILSAM has been completed for over half of Illinois, including the Fox, Kankakee, Kaskaskia, Little Wabash, Mackinaw, Rock, Sangamon, and Vermilion-Illinois River watersheds. Additional ILSAM applications for the Spoon and LaMoine River watersheds in western Illinois are currently being developed. A new online version of the ILSAM model is available for easy access to ILSAM streamflow estimates, and a more comprehensive version of ILSAM for use on Windows-based personal computers is also available on CD.
Recent Publications:
Mills, Evan P., and H. Vernon Knapp. 1991. The Illinois Streamflow Assessment Model: Version 3.2, User's Guide. Miscellaneous Publications 132. Illinois State Water Survey, Champaign, IL, 46p.
 
Mills, Evan P., and H. Vernon Knapp. 1989. The Illinois Streamflow Assessment Model: Version 3.0, User's Guide. Miscellaneous Publications 116. Illinois State Water Survey, Champaign, IL.
Web Site: Illinois Streamflow Assessment Model
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Initial Stream Stability Assessment of a Segment of Hickory Creek
Principal Investigator: B. White
Field and Data Processing: J. Beardsley, L. Duong, and J. Rodsater
Funded by Illinois Department of Natural Resources, 7/1/2003 – 2/29/2004
ABSTRACT: The IDNR-Office of Water Resources is interested in having the ISWS describe the nature of a segment of the pre-modern and modern Hickory Creek fluvial system between Pilcher Park Dam and Washington Street in Joliet. The contract also called for the identification of likely causes of channel instability in the study area and to offer potential alternatives to potentially mitigate impacts associated with instability and severe erosion of the streambank. The geological conditions and severity of erosion at the stream segment in question warrants traditional engineering practices rather than costly bioengineering techniques that, in this case, may be questionable with such a diverse and erosive geologic setting. The Office of Water Resources was also interested in any future study needs (i.e., sediment transport studies).
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Installation of Newbury Riffles in the Cache River to Stabilize the Streambed and Enhance Habitat
Principal Investigator: B. White
Field and Data Processing: J. Beardsley, and J. Rodsater
Funded by Illinois Department of Natural Resources, 10/1/2003 – 12/30/2004
ABSTRACT: The Cache River Natural Area is comprised of 11,760 acres of timber and swamps which surround the Cache River. Special interest in the area includes three nature preserves, Section 8 Woods, Heron Pond-Wildcat Bluff, and Little Black Slough. The creation of the Post Creek “cut-off” in 1915 shortened the Cache River by 52 miles and channel incision has since then been draining several wetland areas and degrading habitat in this biologically important area. This contract effort is established for the ISWS to review existing surveys to determine streambed profile, channel geometry, and the extent of channel erosion in order to determine the locations, depths and widths of riffles to be constructed in the Cache River. The ISWS will develop plans and work with local IDNR personnel to determine accessibility and work with local contractors to oversee installation of the restoration measures. Costs of materials and heavy equipment will be calculated after negotiations with local contractors and local suppliers such as rock quarries. Design plans, oversight of actual restoration activities and photo documentation will be provided by the ISWS.
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Investigation of Metal and Organic Contaminant Distributions and Sedimentation Rates in Backwater Lakes along the Illinois River
Principal Investigator: J. Slowikowski
Funded by the Illinois Department of Natural Resources, 1/1/2002 - 3/31/2003
ABSTRACT: Illinois River sediments contain an unknown distribution of metals and organic contaminants. Dredging is being proposed as a means to restore habitats and recreational opportunities to areas of the Illinois River. Sediments of areas to be dredged will require better characterization. This project intends to characterize these sediments, information that can be used to help make decisions regarding disposal of dredged materials. Using a Rossfelder vibrocoring system, at least ten cores will be collected from selected areas of Peoria Pool above Chillicothe, LaGrange Pool, and Alton Pool. Collected cores will be extruded and split, with one half used for 10 centimeter sub-samples for organic carbon, metal analysis and cesium-137 dating, and the other half for organic analytes and various agronomic and physical parameters. Work proposed will be a joint effort between the Illinois State Water Survey and the Illinois State Geological Survey.
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Low Frequency Estimation for Sugar Creek
Principal Investigators: V. Knapp and J. Slowikowski
Field and Data Processing: T. Snider
Funded by the City of Springfield, Illinois, 8/1/2001 - 11/30/2003
ABSTRACT: This study will estimate 7-day, 10-year low flows for Sugar Creek in Sangamon County in a reach located between Lake Springfield (Spaulding Dam) and the Springfield Metro Sanitary District treatment facility. Low flow discharge will be measured during dry periods over the next three years. A frequency analysis of these low flows will use a nearby long-term gaging as an index of low flow frequency.
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National Monitoring of Instream Habitat and Urban Fisheries in the Waukegan River
Principal Investigator: Bill White
Field and Data Processing: L. Duong, J. Rodsater and J. Beardsley
Funded by the Illinois Environmental Protection Agency, 6/1/2000 - 5/31/2004
ABSTRACT: The Waukegan River, located in Waukegan, Illinois, is about 35 miles north of Chicago and has a watershed area of 7,640 acres in a mostly urban setting. This U.S. Environmental Protection Agency Section 319 National Monitoring Program project is an urban stream restoration project. High-volume runoff from impervious surfaces and a lack of stormwater controls are creating channel instability in urban streams. Habitat quality is being degraded, as evidenced by low oxygen levels, shallow pool depths, and limited cobble substrate. This project uses biotechnical stream restoration practices (a combined vegetative and structural approach) to stabilize eroded streambanks and low stone weirs to restore pool and riffle sequences. Upstream/downstream habitat monitoring is being used to evaluate the success of the installed stream restoration efforts by documenting water quality changes in the Waukegan River at South Branch stations. Biological parameters, which include fish, macroinvertebrate, and habitat samples, are measured three times per year from May through September. Flows are monitored continuously.
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Update of the 7-Day 10-Year Low Flow Maps for Illinois
Principal Investigator: V. Knapp
Funded by Illinois Environmental Protection Agency until 2/28/2003
ABSTRACT: The 7-day, 10-year low flow in streams (Q7,10) is the lowest average flow for a consecutive seven-day period with an average recurrence interval of ten years. The Illinois Environmental Protection Agency (IEPA) often uses Q7,10 estimates as the base flow condition in Illinois streams at which certain water quality standards apply. Allocation of waste loads also is dependent on the Q7,10 stream flow, which is the sum of natural base flows, water withdrawals, and effluent flows. The Illinois State Water Survey, with cooperative funding from the Illinois Environmental Protection Agency, has produced Q7,10 maps for Illinois since 1973. The Q7,10 estimates have been revised periodically, and this is appropriate whenever there is a shift in the statistical characteristics of low flows at gaging stations as a result of climatic variability or land use factors, or if water use conditions along the streams in the region change considerably. Low flow estimates contained in these maps are based on a combination of statistical analyses of low flows measured at U.S. Geological Survey streamgages throughout Illinois, regional regression equations that estimate low flows at ungaged sites based on information transferred from gaged sites, and water use conditions at the time of the evaluation. Low flow maps for the Sangamon, Rock, Kaskaskia, Little Wabash, and northeastern Illinois regions are being revised.
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