Missouri River Water Management News

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  • EA for levee repairs in Douglas County, NE, seeks public input

    A draft environmental assessment for repairs to levee unit R-627, Grace Street Ditch, in Douglas County, NE, is currently available for public review. The draft EA evaluates the environmental impacts of repairing erosion damage to the levee caused by high flows in June 2014.
  • U. S. Army Corps of Engineers plans to study existing Sediment Flushing Project to reduce uncertainty in the Lewis and Clark Lake Sediment Study

    The Omaha District is evaluating sediment flushing at Gavins Point Dam in Phase II of its Lewis and Clark Lake Sediment Management Study as part of the Missouri River Recovery Program. Phase II of the study began in late 2012 and the initial numerical modeling analysis of 10 different management scenarios ranging from annual flushing to major dam modifications and dredging is complete. To help ensure the modeling results are as accurate as possible, USACE is expanding the study and building a numerical model of the annual reservoir flush that occurs on the Niobrara River at Spencer Dam, near Spencer, Neb.
  • Contract awarded for chute repairs at Middle Decatur Bend, Burt County, Neb. and backwater repairs at Hole-in-the-Rock, Thurston County, Neb.

    The U. S. Army Corps of Engineers has awarded a contract to Newt Marine Service of Dubuque, Iowa for $972,142.25 for repairs to existing chute and backwater projects at Middle Decatur Bend near Decatur in Burt County, Neb. and Hole-in-the-Rock located on the Omaha Indian Reservation north of Macy in Thurston County, Neb. The proposed projects will repair damages to existing shallow water habitat features caused by the 2011 Missouri River Flood.
  • Vegetation control to begin on Missouri River sandbars between Pickstown, S.D. and Ponca, Neb.

    During September, the U.S. Army Corps of Engineers will spray sandbars in the Missouri River between Pickstown, S.D. and Ponca, Neb. with aquatic-approved herbicides to keep the sandbars clear of vegetation. This work is being done so that the sandbars may be used by the endangered interior least tern and threatened piping plover for nesting.
  • Vegetation control to begin on Missouri River sandbars between Garrison Dam and Lake Oahe headwaters, N.D.

    During September, the Omaha District will conduct vegetation management activities on sandbars in the Missouri River. Contractors will use a helicopter to spray sandbars with aquatic-approved herbicides to keep them clear of vegetation. This work is being done so that the sandbars can continue to be used by the endangered interior least tern and threatened piping plover for nesting. The sandbars being treated are on the Missouri River between the Garrison Dam and the Hazelton Boat Ramp on Lake Oahe (river miles 1381 to 1278). The Bismarck-Mandan river reach, river miles 1325 to 1310, and river miles 1364 and 1363 north of Washburn, N.D. will not be sprayed.
  • Public comments sought on environmental assessment for a proposed seismic study to evaluate hydrocarbon reserves in N.D.

    A draft environmental assessment for a proposed seismic study to evaluate hydrocarbon reserves in McKenzie and Williams Counties, N.D. is currently available for public review. The draft EA evaluates the environmental impacts of seismic exploration activities on federal and non-federal lands within the project area.
  • Draft environmental assessment for modifications to Missouri River structures available for review

    A draft environmental assessment for the modification of 73 existing dike structures along the Missouri River is currently available for public review. The draft EA evaluates the environmental impacts of modifying the structures to create the physical conditions necessary to maximize the amount of shallow water habitat at each of the notched dikes.
  • Draft Environmental Assessment for Lake Yankton Fish Population Renovation Project, Neb., S.D., available for public review

    A draft environmental assessment for a proposed fish population rehabilitation project at Lake Yankton is currently available for public review. In recent years Lake Yankton has become dominated by “rough” fish species including Asian carp that are considered detrimental to the recreational fishery. The goal of the proposed project is to re-establish the recreational fishery by allowing for the establishment of a desirable game fish population.
  • Draft supplemental environmental assessment for repairs to Upper Hamburg chute available for public review

    A draft supplemental environmental assessment for repairs to the Upper Hamburg chute in Otoe County, Neb. is currently available for public review. The draft supplemental EA evaluates the environmental impacts of repairing chute bank erosion that formed along two locations during the 2011 Missouri River flood. The purpose and scope of this supplemental EA are limited to evaluating the potential environmental effects of the proposed operation and maintenance chute repair actions.
  • Public comments sought on draft supplemental environmental assessment for repairs to Council Bend chute

    A draft supplemental environmental assessment for repairs to the Council Bend chute in Pottawattamie County, Iowa is currently available for public review. The draft supplemental EA evaluates the environmental impacts of repairing a chute scour hole that formed along the southern bank during the 2011 Missouri River flood. The purpose and scope of this supplemental EA are limited to evaluating the potential environmental effects of the proposed operation and maintenance chute repair actions.