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US Army Corps of Engineers

Little Rock District Website

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Illinois River Flood Study Documents - USACE Little Rock District

Illinois River Flood Study Documents

U.S. Army Corps of Engineers - Little Rock District

Study Area

The Scope of the Study

The scope of the Illinois River Flood study was to identify the major contributing factors to the increased water levels in the Illinois River in northwest Arkansas and northeast Oklahoma and to provide suggestions as to what can be done to decrease the frequency and magnitude of flooding.

To accomplish this, USACE partitioned the study into three components:

Illinois River stream gage analysis
Climatic variability and hydrology (as it relates to streamflow, precipitation, and runoff)
Comprehensive hydraulic analysis

Partnership Focus: USACE is working with the Arkansas Natural Resource Division of the Arkansas Department of Agriculture to identify possible means to reduce the impacts of localized flooding.

USACE hydrologists and engineers are examining urbanization in northwest Arkansas and how development can occur in ways that minimize impacts to the water flowing in the mainstem of the Illinois River.

Study Documents

Final Report

Download Options:
• PDF Format (15 megabytes)

Study Presentation

Download Options:
• PowerPoint format
• PDF format

Document Access: All study documents are available for public download. The final report provides comprehensive analysis and findings, while the presentation offers a summary overview of the study results and recommendations.