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Three Rivers Structures
The Three Rivers project is located on the MKARNS between the White and Arkansas Rivers, just upstream of the Montgomery Point Lock & Dam in southeast Arkansas. Modifications to the Mississippi River have steepened the stream slope and accelerated water velocity, causing the Mississippi to migrate i
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The Three Rivers project is located on the MKARNS between the White and Arkansas Rivers, just upstream of the Montgomery Point Lock & Dam in southeast Arkansas. Modifications to the Mississippi River have steepened the stream slope and accelerated water velocity, causing the Mississippi to migrate into the White River, which then overflows into the Arkansas River.
The project includes four construction components: restoration of a historic relief channel between the White and Arkansas Rivers with a hydraulic weir (crest elevation 145 ft.); a 2.4-mile containment structure built to an elevation of 157 ft.; modification of the Owens Lake containment structure; and improvement of the LaGrue Culverts. Approximately 20 acres of agricultural land will be converted to bottomland hardwood forest to meet mitigation requirements.
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Attribution: Source: DVIDS Hub — U.S. Department of Defense public-affairs media
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