22 Mar 2019

Disposition Study, Lower St. Anthony Falls Lock and Dam, and Lock and Dam 1, Upper Mississippi

Determine whether or not continued operation and ownership of Lower St. Anthony Falls Lock and Dam and Lock and Dam 1 are in the federal interest, and if not, provides supporting information for deauthorization of the project purposes and disposal of the property. Lower St. Anthony Falls Lock and Dam and Lock and Dam 1 are both located on the Mississippi River in Minneapolis, Minnesota.

22 Mar 2019

Mississippi River Locks and Dams 2–10 Non-Structural Embankment Repair

Non-structural embankment repair projects at Locks and Dams 2 through 10 will address restoring embankments to meet current design standards. Most dam embankments are currently protected from the erosive forces of water by a layer of riprap placed along the embankment’s length. When the riprap eventually erodes, the embankment itself will erode if more protection is not added. The U.S. Army Corps of Engineers has designed and placed berms and small islands to assist in reducing wave action and wind fetch within pools created by the locks and dams. Reducing these forces increases the longevity of the embankment protections.

22 Mar 2019

Planning Assistance to States (PAS): Red River Basin Long Term Flood Study

The Red River of the North rises in Lake Traverse near Wheaton, Minnesota and flows north towards Canada and ultimately to Lake Winnipeg. The Red River Basin Commission (RRBC) produced the Long Term Flood Study (LTFS) in 2011 after the 2009 event. Minnesota and North Dakota expressed the need for a coordinated, comprehensive, proactive plan that responds to and mitigates flooding and flood damages throughout the Red River Watershed.

22 Mar 2019

Upper Mississippi River Restoration Program: Reno Bottoms, Houston Co., Minnesota and Allamakee Co., Iowa

Much of the floodplain forest in the Reno Bottoms project area has been declining in coverage over the past several decades. Current Pool 9 water management and flow through the Lock and Dam 8 embankment have shifted the floodplain forest distribution to higher elevations than pre-impoundment conditions. Without active management, floodplain forest in the Reno Bottoms project area is likely to continue to degrade. The proposed project goals include protecting, maintaining and restoring floodplain hardwood forests to levels that are sustainable. The 14,000 acre Reno Bottoms area is located within the Upper Mississippi River National Wildlife and Fish Refuge in Houston County, Minnesota and Allamakee County, Iowa and is in Pool 9 between river miles 671‒682.

1 Oct 2018

Big Sandy Lake Dam Rehabilitation Project

Big Sandy Lake Dam is a significant hazard dam located on the Sandy River in Aitkin County, Minnesota, 1.25 miles upstream of the junction between the Sandy River and Mississippi River. The dam’s original purpose was to provide supplemental flow to the Mississippi River during periods of low river stages for navigation. Construction of the locks and dams downstream of Minneapolis in the 1930s reduced the need for upstream storage for navigation, and since then Sandy Lake Dam’s purpose has shifted to flood control, recreation, fish and wildlife conservation, and water supply.