Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/13398
Title: Kaskaskia River navigation project, Illinois : hydraulic model investigation
Authors: United States. Army. Corps of Engineers. St. Louis District
Franco, John J.
McKellar, Cody D.
Keywords: Channel improvements
Navigation channels
Hydraulic models
Hydraulic structures
Kaskaskia River
Illinois
Navigation conditions
Waterways
Inland navigation
Publisher: Hydraulics Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Technical report (U.S. Army Engineer Waterways Experiment Station) ; H-69-1.
Description: Technical Report
Abstract: The proposed Kaskaskia River navigation project will provide a 50-mile-long, 9-ft-deep by 200-ft-wide channel from the mouth of the river to Fayetteville, Ill., by means of channel enlargement and realignment; alterations to bridges to obtain proper clearance; and construction of a gated dam surmounted by two 60- by 30-ft tainter gates, and an 84- by 600-ft navigation lock. A 1:120-scale, fixed-bed model, reproducing 2.0 miles of the Kaskaskia River and 1.8 miles of the Mississippi River, was used to: demonstrate and study flow conditions in lock approaches and in critical reaches; determine adequacy of proposed design for the spillway, stilling basin, and exit channel; determine optimum arrangement of the guide or guard walls; determine areas requiring special protection and navigation conditions in lock approaches and in critical reaches; and develop modifications required to produce satisfactory flow and navigation conditions. Results of the investigation indicated the following. Spillway approach walls should be flared, and stilling basin should be lengthened and its elevation lowered with an increase in the width of exit channel to provide satisfactory flow conditions through the structure. Upper and lower lock approach walls should be guard walls on the river side of the lock. Navigation conditions within the bend upstream of the lock could be improved by decreasing the radius of the bend by placing a fill along the right bank and compensating excavation along the left bank. A fill or dike would be required along the right bank of the new channel to provide satisfactory navigation conditions through the lower reach and in the lower lock approach with overbank flow during high stages. The upper lock approach channel should be widened at least 50 ft to the right at the end of the upper guard wall to provide satisfactory navigation conditions in the upper lock approach during high flows.
Rights: Approved for public release; distribution is unlimited.
URI: http://hdl.handle.net/11681/13398
Appears in Collections:Technical Report

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