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McClellan–Kerr Arkansas River Navigation System : ウィキペディア英語版
McClellan–Kerr Arkansas River Navigation System

The McClellan–Kerr Arkansas River Navigation System (MKARNS) is part of the inland waterway system originating at the Tulsa Port of Catoosa and running southeast through Oklahoma and Arkansas to the Mississippi River. The system was named for two Senators: Robert S. Kerr (D-OK) and John L. McClellan (D-AR), who pushed authorizing legislation through Congress. The system officially opened June 5, 1971. President Richard M. Nixon attended the opening ceremony.〔O'Dell, Larry. ''Encyclopedia of Oklahoma History and Culture''. "McClellan-Kerr Arkansas River Navigation System." ()〕 It is operated by the Corps of Engineers.〔(U. S. Army Corps of Engineers Little Rock District. MKARNS )〕
Though it primarily follows the Arkansas River, it also follows portions of the Verdigris River in Oklahoma and the White River in Arkansas. It also includes the Arkansas Post Canal, a short canal named for nearby Arkansas Post National Memorial, connecting the Arkansas and White Rivers.
Through Oklahoma and Arkansas, dams artificially deepen and widen this modest sized river to build it into a commercially navigable body of water. The design enables traffic to overcome an elevation difference of between the Mississippi River and the Tulsa Port of Catoosa.〔 Along the section of the Arkansas River that carries the McClellan-Kerr channel, the river sustains commercial barge traffic and offers passenger and recreational use and is a series of reservoirs. Total length of the system is .〔
==Construction==

The Arkansas River is very shallow through Arkansas and Oklahoma, and was naturally incapable of supporting river traffic through most of the year. To allow for navigation, construction was started in 1963 on a system of channels and locks to connect the many reservoirs along the length of the Arkansas River. The first section, running to Little Rock, Arkansas, opened on 1 January, 1969. The first barge to reach the Port of Catoosa arrived in early 1971.
Each lock measures wide and long, the standard size for much of the Mississippi River waterway. Standard jumbo barges, measuring 35 by , are grouped 3 wide by 3 long, with a tug at center rear, to form a barge ''packet'' which can be fit into a lock. Larger barge packets must be broken down and passed through the lock in sections, and rejoined on the opposite side.
The specifications for the channel itself are as follows:
*Depth of channel:

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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