US Army Corps of Engineers
St. Paul District Website


Upper Mississippi River Restoration Program: Lower Pool 10 Islands

Published April 12, 2017
Updated: Sept. 20, 2019

The Lower Pool 10 Islands are part of the Upper Mississippi River Restoration Program. The site is a 1,000 acre side channel and island complex located on the Iowa side of the Mississippi River navigation channel in Pool 10, about one mile upstream from Lock and Dam 10 in Guttenberg, Iowa. The site lies within the Upper Mississippi River National Wildlife and Fish Refuge.


Many natural islands bordering the U.S. Army Corps of Engineers-maintained navigation channel and extending into the backwater have eroded and are disappearing. Erosion from wave action and main channel flows reduces the wetland, resulting in the loss of aquatic vegetation and shallow protected habitats necessary for fish and wildlife to survive.

The proposed project goals include protecting and restoring island complexes that would enhance quality habitat for native and desirable species by reducing suspended solid concentrations and reducing wind fetch.


The Corps began project planning in early fiscal year 2019 and will complete a draft report in 2020. This is a 3-year feasibility study effort currently working on evaluating the current conditions and developing modeling alternatives to meet the project objectives.


The Corps will plan the Lower Pool 10 Islands Habitat Rehabilitation and Enhancement Project under the authority of the Upper Mississippi River Restoration Program. Congress authorized this program via Section 1103 of the Water Resources Development Act of 1986 and reauthorized it via Water Resources Development Act of 1999.

The Corps will plan and design the project as part of a cooperative effort with the U.S. Fish and Wildlife Service (USFWS), the Wisconsin and Iowa Departments of Natural Resources and local interests.


Project design and construction costs will be 100 percent federal because the project is located on lands managed as a national wildlife refuge. Operation and maintenance costs will be 100 percent federal, a responsibility of the USFWS.

Estimated total cost                                   $15,000,000
Project cost to date                                         $352,398