US Army Corps of Engineers
Rock Island District Website

District Projects

Hurricane Island DMMP Report and Environmental Assessment

Published March 10, 2020

Pool 11, Dubuque County, Iowa, and Grant County, Wisconsin, Upper Mississippi River, River Miles 608-591

The report outlines the District’s plan to maintain the Mississippi River 9-foot navigation channel by dredging material from the channel and placing it on a small island near the channel. 

The placement site, or “Bathtub” is a temporary placement site. After 20 years the District would remove the dredged material in the Bathtub and relocate it to a permanent upland farm field/quarry site in Wisconsin. The report includes a Finding of No Significant Impact (FONSI), addressing the proposed action over a 40-year life (2 cycles of using the Bathtub).

The U.S. Army Corps of Engineers, Rock Island District completed a Dredged Material Management Program Report and Environmental Assessment (EA) titled Upper Mississippi River Dredged Material Management Plan with integrated Environmental Assessment, Site Plan for the Hurricane Island Reach, Pool 11, Dubuque County, Iowa and Grant County, WI, Upper Mississippi River, River Miles 608-591, dated April 2017

Additional Information

Congressional Interest

Senators: Charles Grassley (IA), Joni Ernst (IA), Tammy Baldwin (WI), Ron Johnson (WI)

Representatives: IA-1 (Abby Finkenauer), WI-3 (Ron Kind)
OM – Operations and Maintenance
Rivers and Harbors Acts of 1927, 1930, and 1935 in accordance with the SECTION 404 CWA & 33CFR, Parts 335-338

Summarized Project Costs

Estimated Federal Cost  N/A 
Estimated Non-Federal Cost  N/A 
Estimated Total Project Cost  N/A 
Allocations Prior to FY 2020 N/A 
FY 2020 Allocation  N/A 
FY 2020 Total Capability  N/A 

Major Work Item Current Year
FY 2020: Continue with intermediate stages of site construction, in alignment with chronic dredging needs required to maintain the 9-foot navigation channel in the local area