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Comments sought on Draft Supplemental EA for repairs to Nishnabotna Bend chute

Published June 24, 2015

OMAHA, NE – A draft supplemental environmental assessment for repairs to the Nishnabotna Bend chute in Nemaha County, Neb. is currently available for public review. The EA evaluates the environmental impacts of repairing damages that occurred to the chute during the 2011 Missouri River flood. These repairs are needed to restore the intended habitat function of Nishnabotna Bend.

In 2004, Nishnabotna Bend was constructed between river miles 542.4-543.3 as a flow-through chute to function as shallow water habitat. The unprecedented flood of 2011 eroded the upstream portion of the island created by the original project, allowing the river to bypass the originally constructed grade control structure near the upstream entrance of the chute. Proposed repairs include a new grade control structure relocated farther downstream in the chute where the island has not eroded, two new stone toe revetments to stabilize the bank of the chute and the island, and repair of five existing spur dikes. The grade control structure and spur dikes aid in slowing down water flow and decreasing depth in the chute to benefit the endangered pallid sturgeon and other native fish and wildlife without impacting the authorized purposes of the Missouri River.  

The public is encouraged to provide comments on the draft supplemental EA which is available for viewing at http://www.nwo.usace.army.mil/Missions/CivilWorks/Planning/ProjectReports.aspx. Comments can be mailed to: U.S. Army Corps of Engineers, Omaha District; CENWO-PM-AC; ATTN: Nishnabotna Bend Supplemental EA; 1616 Capitol Avenue; Omaha, NE 68102-4901. Comments can also be emailed to: cenwo-planning@usace.army.mil. Comments must be postmarked or received no later than July 24, 2015. 

This draft supplemental EA is consistent with the National Environmental Policy Act of 1969 (NEPA), as amended, the Council on Environmental Quality’s (CEQ) regulations for implementing NEPA (40 CFR 1500-1508), the Corps’ regulations for implementing NEPA (33 CFR 325 and Engineering Regulation 200-2-2) and other applicable environmental laws and regulations.

Maggie Oldham
Rebecca Bozarth

Release no. 20150624-001