Get The Latest News!

Don't miss our top stories and need-to-know news everyday in your inbox.

ALTON - City employees began filling sandbags Monday afternoon in case a wall was needed to be built to protect Downtown Alton from high waters.

Article continues after sponsor message

A supervisor at the scene said about 1,500 sandbags would be filled and used if necessary.

A team worked in unison around 3 p.m. Monday to fill the bags in preparation for the worst. Broadway at Illinois Route 100 was officially closed Monday afternoon because of the high water in the route.

As of 3 p.m. Central, the water level was at 31.6 feet for the Mississippi River at the Mel Price (Alton) Lock and Dam, according to the U.S. Geological Survey. Flood stage is 21 feet. A crest of 32.1 feet is predicted on Tuesday, then levels now are projected to fall. A mark of 34 feet is considered major flooding at Mel Price Lock and Dam.

The Mississippi River at Grafton is presently at 28.69 feet and predicted to hit 28.8 feet Tuesday, then drop. Major flooding at Grafton is 29 feet. The Illinois River at Hardin is at 33.98 feet at 3 p.m. Flood stage is 25 feet with major flooding at 32 feet, so technically Hardin is encountering major flooding.

Prefer RiverBender on Google
Copyright 2026 Riverbender.com. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

 

More like this:

Minor Flood Warning Issued for Mississippi River at Alton and Grafton
Apr 29, 2026
Mississippi and Illinois Rivers Begin Predicted Decline
May 3, 2026
Drivers Advised To Exercise Caution During Flash Flood Warnings
May 19, 2026
Public Launch Ramp Closed Until Further Notice
May 11, 2026
South Roxana Police Warn Drivers To Keep Away from Madison Street-Sinclair Avenue Area After Flash Flood
Jun 8, 2026