Some areas of Iowa and IL were under a Flash Flood Warning after heavy rain.
Floodwaters swamped downtown Davenport, Iowa, Tuesday evening after a temporary flood barrier failed, sending people to the rooftops of buildings to seek shelter.
A disaster proclamation has been issued by Illinois Gov. J.B. Pritzker for 34 counties along the MS and Illinois rivers due to flooding.
Michigan Gov. Gretchen Whitmer declared a state of emergency Thursday for Wayne County after this week's heavy rains left widespread flooding, the AP reports.
Ahead of this historic flooding, in the midst of the heavy rains, hundreds of volunteers worked to reinforce the levees and barriers, but it wasn't enough to keep the mighty Mississippi River at bay.
Two Mississippi River bridges - one at Quincy, Illinois, and another at Louisiana, Missouri, have been forced to close.
Officials in the Quad Cities say they have the flooding contained, but now the waiting begins.
Sandbagging efforts are expected to continue through the weekend. The river is expected to crest Wednesday night a few inches short of the record. The weather service forecasts a crest of 35.5 feet by Sunday or Monday in Alton.