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Title: Navigation conditions in Fort Smith reach, Arkansas River : hydraulic model investigation
Authors: United States. Army. Corps of Engineers. Little Rock District
Franco, John J.
Shows, Louis J.
Keywords: Fort Smith (Ark.)
Arkansas River
Hydraulic models
Navigation conditions
Inland navigation
Navigation channel
Poteau River (Ark. and Okla.)
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-68-7.
Description: Technical Report
Abstract: The Fort Smith reach of the Arkansas River, located in the Lock and Dam No. 13 pool, includes the mouth of the Poteau River and is crossed by two bridges 850 ft apart. An undistorted 1:120- scale, semifixed-bed model reproducing approximately 4 miles of the Arkansas River and adjacent overbank and the lower 2 miles of the Poteau River was used to determine the regulating structures and modifications required to develop a channel of project dimensions, and the modifications required to the existing bridges to provide satisfactory navigation conditions through the reach. Results of the investigation indicate that: (1.) The bridge spans should be modified to provide additional clearance and the navigation channel through the bridges should be maintained along the right bank.(2.) Normal flow from the Poteau River would have little effect on navigation through the bridges downstream. Overflow from the Arkansas River into the Poteau River channel combined with Poteau River flow could produce serious crosscurrents at the mouth of the Poteau River and would tend to increase shoaling at that point. (3.) Modifications would be required in the regulating structures along the right bank just upstream of the mouth of the Poteau River and along the left bank to develop satisfactory channel dimensions through the reach.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Technical Report

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